Rinder v. Merck Sharp & Dhome Corp. , 2019 IL App (1st) 171969 ( 2019 )


Menu:
  •                                                                                Digitally signed by
    Reporter of Decisions
    Reason: I attest to the
    Illinois Official Reports                         accuracy and
    integrity of this
    document
    Appellate Court                            Date: 2019.04.24
    14:39:46 -05'00'
    Rinder v. Merck Sharp & Dohme Corp., 
    2019 IL App (1st) 171969
    Appellate Court         DANITTA RINDER, Individually and as Special Administrator of the
    Caption                 Estate of Gregg Rinder, Deceased, GAY LYNNE BRINKLEY,
    Individually and as Executor of the Estate of Myra Jo Brinkley,
    Deceased, and ALAN C. PAPROCKI, Individually and as Executor of
    the Estate of Carolyn J. Paprocki, Deceased, Plaintiffs-Appellees, v.
    MERCK SHARP & DOHME CORP., Defendant-Appellant.–SALLY
    DONZELLI, Individually and as Special Administrator of the Estate
    of George Donzelli, Deceased, Plaintiff-Appellee, v. MERCK
    SHARP & DOHME CORP., Defendant-Appellant.
    District & No.          First District, Third Division
    Docket Nos. 1-17-1969, 1-17-1970 cons.
    Filed                   January 23, 2019
    Decision Under          Appeal from the Circuit Court of Cook County, Nos. 13-L-3244,
    Review                  13-L-10283; the Hon. Daniel T. Gillespie, Judge, presiding.
    Judgment                Certified question answered.
    Counsel on              Stephanie A. Scharf and George D. Sax, of Scharf Banks Marmor
    Appeal                  LLC, of Chicago, and Ana C. Reyes and Paul E. Boehm, of Williams
    & Connolly LLP, of Washington, D.C., for appellant.
    Kenneth J. Brennan, of TorHoerman Law LLC, of Edwardsville, for
    appellees.
    Panel                    PRESIDING JUSTICE FITZGERALD SMITH delivered the
    judgment of the court, with opinion.
    Justices Howse and Cobbs concurred in the judgment and opinion.
    OPINION
    ¶1         This consolidated appeal involves two pharmaceutical product liability lawsuits
    concerning the drug Januvia, which is manufactured and marketed by the defendant, Merck
    Sharp & Dohme Corp. (Merck). The two lawsuits involve four plaintiffs, who allege their
    family members died of pancreatic cancer caused by their use of Januvia. The plaintiffs
    allege that, as of the time their family members were taking Januvia, Merck knew that use of
    Januvia caused or increased the risk of developing pancreatic cancer and it failed to warn of
    this risk in the drug’s labeling. The four plaintiffs’ decedents used Januvia at various times
    between 2007 and 2012. It is undisputed that Januvia’s labeling did not contain any mention
    of pancreatic cancer.
    ¶2         Januvia was approved by the United States Food and Drug Administration (FDA) in 2006
    as a drug to treat type 2 diabetes, a disease that results in chronically elevated blood-sugar
    levels. If left untreated, type 2 diabetes can lead to various significant health complications.
    Januvia is one of two classes of drugs sometimes referred to as “incretin-based therapies.”
    Incretins are gastrointestinal hormones that cause an increase in the amount of insulin
    released from cells in the body after eating. Incretin-based therapies essentially prolong the
    effect of an incretin hormone that stimulates the production of insulin and in turn lowers
    blood sugar.
    ¶3         Merck filed a motion for summary judgment, arguing that the plaintiffs’ failure-to-warn
    claims were preempted by federal law. Specifically, Merck argued that federal law made it
    impossible for Merck to satisfy its duties under state tort law (i.e., by providing the warnings
    on Januvia’s label that the plaintiffs alleged were necessary) because, according to the federal
    statutes and regulations that controlled the labeling of pharmaceutical drugs, the FDA would
    have rejected any attempt by Merck to add that warning to Januvia’s label. This appeal
    addresses the specific question of whether Merck’s affirmative defense presents a question to
    be resolved by the judge or by a jury. The trial court ruled that the question presented a
    factual inquiry that a jury should decide, and it denied Merck’s motion for summary
    judgment. In doing so, however, it certified to this court the following question of law
    pursuant to Illinois Supreme Court Rule 308 (eff. July 1, 2017):
    “ ‘Under Wyeth v. Levine, 
    555 U.S. 555
    (2009), federal law preempts state-law
    failure to warn claims related to use of a prescription drug if there is “ ‘clear
    evidence’ ” that the FDA would not permit the manufacturer to include the plaintiff’s
    requested warning in the drug’s labeling. Is the question whether the defendant has
    presented the necessary “ ‘clear evidence’ ” one for resolution by the court or jury?’ ”
    For the reasons set forth below, our answer to the certified question is that the issue should be
    resolved by the jury.
    -2-
    ¶4                                           BACKGROUND
    ¶5         To provide the necessary context for the parties’ arguments, we first set forth an
    explanation of the federal statutory and regulatory framework that governs the labeling of
    prescription drugs. We must then briefly discuss the “clear evidence” test that the Supreme
    Court set forth in 
    Wyeth, 555 U.S. at 571
    , which addressed when a state law failure-to-warn
    claim is preempted by those federal drug-labeling regulations. Against this background, we
    will address the nature of the dispute raised by Merck’s motion for summary judgment about
    whether “clear evidence” exists that the FDA would not have permitted it to add a pancreatic
    cancer warning to Januvia’s labeling. This will then allow us to proceed with our analysis of
    the certified question, whether the issue presented in the “clear evidence” test is to be decided
    by the judge or jury.
    ¶6                            Federal Drug Labeling Statutes and Regulations
    ¶7          The Federal Food, Drug, and Cosmetic Act governs the marketing and sale of
    prescription drugs in the United States. 21 U.S.C. § 301 et seq. (2012). It prohibits any drug
    from being introduced into interstate commerce unless the FDA approves an application in
    which the manufacturer shows that the drug is safe and effective. 
    Id. § 355.
    The application
    must also include “the labeling proposed to be used for such drug.” 
    Id. § 355(b)(1)(F);
    21
    C.F.R. § 314.50(c)(2)(i) (2012).
    ¶8          All prescription drug labeling must include certain information, including among other
    things a “warnings and precautions” section and an “adverse reactions” section. 21 C.F.R.
    § 201.57(a)(10)-(11) (2012). The “warnings and precautions” section must “describe
    clinically significant adverse reactions,” including “any that are potentially fatal” or “are
    serious even if infrequent.” 
    Id. § 201.57(c)(6)(i).
    The “adverse reactions” section is broader
    than the warnings and precautions section and describes the overall adverse reaction profile
    of the drug. 
    Id. § 201.57(c)(7).
    An adverse reaction is defined as “an undesirable effect,
    reasonably associated with use of a drug, that may occur as part of the pharmacological
    action of the drug or may be unpredictable in its occurrence.” 
    Id. It includes
    “only those
    adverse events for which there is some basis to believe there is a causal relationship between
    the drug and the occurrence of the adverse event.” 
    Id. ¶9 The
    Supreme Court has explained that it is a “central premise of federal drug regulation
    that the manufacturer bears responsibility for the content of its label at all times.” 
    Wyeth, 555 U.S. at 570-71
    . The drug’s manufacturer “is charged both with crafting an adequate label and
    with ensuring that its warnings remain adequate as long as the drug is on the market.” 
    Id. at 571;
    see also 21 U.S.C. § 355(o)(4)(I) (2012).
    ¶ 10        Fulfilling this latter responsibility may involve revising the drug’s label following its
    initial approval, and the FDA regulations provide drug manufacturers with two options for
    doing so. The first and more common option, which is not the one generally involved in
    cases applying the Wyeth inquiry, requires the manufacturer to submit an application and
    obtain the FDA’s approval for the label change prior to making changes. 1 21 C.F.R.
    § 314.70(b)(2)(v)(A), (b)(3) (2012).
    1
    This option is known as the “Prior Approval Supplement” or “PAS.” In cases involving the Wyeth
    inquiry, the PAS procedure is generally not involved because the FDA regulations provide that prior
    FDA approval is not required for a label change to “add or strengthen a contraindication, warning,
    -3-
    ¶ 11       The second option, which is the one generally involved in cases applying the Wyeth
    “clear evidence” inquiry, is known as the “changes being effected” or “CBE” regulation. The
    CBE regulation provides for several situations in which a manufacturer is allowed to change
    a drug’s label without obtaining prior approval from the FDA. 
    Id. § 314.70(c)(6)(iii);
    Wyeth,
    555 U.S. at 568
    . One of those situations is a label change “to reflect newly acquired
    information”2 to “add or strengthen a contraindication, warning, precaution, or adverse
    reaction for which the evidence of a causal association satisfies the standard for inclusion in
    the labeling under [21 C.F.R.] § 201.57(c).” 21 C.F.R. § 314.70(c)(6)(iii)(A) (2012). The
    standard for inclusion set forth in section 201.57(c) provides in part that “labeling must be
    revised to include a warning about a clinically significant hazard as soon as there is
    reasonable evidence of a causal association with a drug; a causal relationship need not have
    been definitely established.” 
    Id. § 201.57(c)(6)(i).
    In its notice of the final rule concerning
    section 314, the FDA explained this standard further:
    “If new safety information meets the requirements of § 201.57(c)(6), it is appropriate
    for inclusion in the labeling of a drug or biologic and a sponsor must update its
    labeling ‘as soon as’ such information becomes available. That section states that
    causation need not have been ‘definitely established’ for a warning to be required to
    appear in labeling, but rather that there need only be ‘reasonable’ evidence of a causal
    association with the drug, a standard that could be met by a wide range of evidence. A
    CBE submission may be made when the evidence meets the standard set forth in this
    rule, even if that evidence would not also support a higher evidentiary standard, such
    as a finding that there is a ‘preponderance’ of evidence that a product actually causes
    a particular kind of adverse event. A sponsor’s submission or FDA’s acceptance of a
    CBE supplement does not necessarily mean that a drug product actually has caused
    any particular adverse event or type of adverse event.” Supplemental Applications
    Proposing Labeling Changes for Approved Drugs, Biologics, and Medical Devices,
    73 Fed. Reg. 49,603, 49,604 (Aug. 22, 2008).
    Significantly, however, the FDA does review all submissions pursuant to the CBE regulation
    and can reject or rescind label changes after the manufacturer has made them. 21 C.F.R.
    § 314.70(c)(6), (c)(7) (2012). The CBE regulation’s requirements ensure that “only
    scientifically justified information is provided in the labeling for an approved product.”
    Supplemental Applications Proposing Labeling Changes for Approved Drugs, Biologics, and
    Medical Devices, 73 Fed. Reg. 2848, 2851 (Jan. 16, 2008). Thus, the FDA would not allow a
    change to labeling to add a warning in the absence of reasonable evidence of an association
    between the product and an adverse event. 
    Id. precaution, or
    adverse reaction,” which is the kind of label change usually at issue in cases involving
    the Wyeth inquiry. 21 C.F.R. § 314.70(b)(2)(v)(A), (c)(6)(iii)(A) (2012). As discussed below, such a
    change can be made by the manufacturer through the CBE regulation without requiring prior FDA
    approval. The PAS option may be involved in cases involving the Wyeth inquiry where the
    manufacturer submitted a PAS application.
    2
    “Newly acquired information” is defined as “data, analyses, or other information not previously
    submitted to [FDA], which may include (but are not limited to) data derived from new clinical studies,
    reports of adverse events, or new analyses of previously submitted data (e.g., meta-analyses) if the
    studies, events or analyses reveal risks of a different type or greater severity or frequency than
    previously included in submissions to FDA.” 21 C.F.R. § 314.3(b) (2012).
    -4-
    ¶ 12                              Wyeth and the “Clear Evidence” Test
    ¶ 13       In 
    Wyeth, 555 U.S. at 568
    -73, the Supreme Court addressed the regulatory framework set
    forth above in considering a drug manufacturer’s argument that, under principles of federal
    preemption, a plaintiff’s failure-to-warn claim under state law was barred because it was
    impossible for the drug manufacturer to comply with a state-law duty to modify a drug’s
    labeling without violating federal drug labeling laws. The Supreme Court held that state-law
    claims based on deficiencies in a drug’s labeling are not preempted by federal law if the drug
    manufacturer could have added the warning under the CBE regulation, which did not require
    prior FDA approval. 
    Id. at 573.
    However, it recognized that the FDA retained authority to
    reject labeling changes that a manufacturer made through the CBE regulation. 
    Id. at 571.
    It
    went on to hold that, “absent clear evidence that the FDA would not have approved a change
    to [the drug’s] label, we will not conclude that it was impossible for Wyeth to comply with
    both federal and state requirements.” 
    Id. ¶ 14
          This statement has developed into a standard that is often referred to as the “clear
    evidence” test or the “Wyeth inquiry.” Beyond this sentence, however, the Supreme Court did
    not elaborate on how lower courts should apply this standard,3 and “lower courts have
    struggled to make it readily administrable.” In re Fosamax (Alendronate Sodium) Products
    Liability Litigation, 
    852 F.3d 268
    , 282 (3d Cir. 2017), cert. granted sub nom. Merck Sharp &
    Dohme Corp. v. Albrecht, ___ U.S. ___, 
    138 S. Ct. 2705
    (2018). As discussed in detail
    below, one aspect of this test about which lower courts have not agreed is whether it presents
    a question to be decided by a judge or by a jury.
    ¶ 15                             Merck’s Motion for Summary Judgment
    ¶ 16       The Wyeth inquiry arose in this case when Merck filed a motion for summary judgment,
    arguing that “clear evidence” existed that the FDA would not have approved a warning for
    pancreatic cancer if it had tried to add one to Januvia’s labeling. In support of its motion,
    Merck submitted medical journal articles, various forms of FDA correspondence,
    memoranda, documentation, and communications involving Januvia and other drugs, part of
    the FDA staff manual, and expert deposition transcripts. Merck argued that, to decide this
    inquiry, the trial court “should compare the facts concerning FDA’s evaluation of incretin
    drugs and pancreatic-cancer risk with the facts” that had been held insufficient in 
    Wyeth, 555 U.S. at 573
    , and Mason v. SmithKline Beecham Corp., 
    596 F.3d 387
    , 396 (7th Cir. 2010), and
    the trial court should conclude that the “evidence that was missing” in those cases was
    present in this case. Specifically, Merck argued that its evidence showed that since at least
    2009, the FDA had been investigating the pancreatic safety of incretin-based medications, it
    had conducted a serious scientific study of the issue, and it made an affirmative scientific
    decision that the evidence did not warrant a change in labeling.
    3
    In a footnote in a later case, the Supreme Court described the “clear evidence” test it had set forth
    in Wyeth as follows: “The FDA, however, retained the authority to eventually rescind Wyeth’s
    unilateral CBE changes. Accordingly, the Court noted that Wyeth could have attempted to show, by
    ‘clear evidence,’ that the FDA would have rescinded any change in the label and thereby demonstrate
    that it would in fact have been impossible to do under federal law what state law required.” PLIVA, Inc.
    v. Mensing, 
    564 U.S. 604
    , 624 n.8 (2011) (citing 
    Wyeth, 555 U.S. at 571
    ).
    -5-
    ¶ 17       First, Merck submitted two FDA memoranda showing that in 2009, the FDA had
    reviewed its adverse event reporting databases for incidents of pancreatic cancer associated
    with use of Januvia and Bayetta, a similar drug. One memorandum stated that “little
    inference for risk [could be] appreciated from review of spontaneous reports of pancreatic
    cancer in adult recipients” of the drugs, as pancreatic cancer is relatively common in adults.
    In response, the plaintiffs argued that more recent statements by the FDA indicated a greater
    level concern that a causal association exists between pancreatic cancer and use of Januvia.
    ¶ 18       Second, Merck argued that in 2009, the FDA required the manufacturer of Bayetta to
    conduct pancreatic safety studies of that drug to assess the relative risk of pancreatic cancer
    and patients using metformin or glyburide. In response, the plaintiffs argued this fact
    supported their contention that the FDA would recognize the existence of “some basis to
    believe there is a causal relationship” between incretin-based drugs and pancreatic cancer,
    which would have satisfied the standard for Merck to have added pancreatic cancer as an
    “adverse reaction” to Januvia’s label through the CBE regulation. See 21 C.F.R.
    §§ 201.57(c)(7), 314.70(c)(6)(iii)(A) (2012).
    ¶ 19       Third, Merck relied on a 2013 communication issued by the FDA titled, “FDA Drug
    Safety Communication: FDA investigating reports of possible increased risk of pancreatitis
    and pre-cancerous findings of the pancreas from incretin mimetic drugs for type 2 diabetes”
    (2013 Drug Safety Communication). Food & Drug Admin., FDA Drug Safety
    Communication: FDA Investigating Reports of Possible Increased Risk of Pancreatitis and
    Pre-Cancerous Findings of the Pancreas From Incretin Mimetic Drugs for Type 2 Diabetes
    ( M a r . 1 4 , 2 0 1 3 ) , h t t p s : / / w w w . f d a . go v / D r u gs / D r u g S a f e t y/ u c m 3 4 3 1 8 7 . h t m
    [https://perma.cc/ZNG2-AUVV]. The plaintiffs also relied on this same communication as
    significant evidence supporting their position. The 2013 Drug Safety Communication was
    apparently prompted by the findings of Dr. Peter Butler and his colleagues, who conducted a
    study that concluded that the use of Januvia increased the odds of developing pancreatitis and
    pancreatic cancer. Because the 2013 Drug Safety Communication is significant to an
    understanding of both parties’ arguments, its pertinent text is set forth as follows:
    “The U.S. Food and Drug Administration (FDA) is evaluating unpublished new
    findings by a group of academic researchers that suggest an increased risk of
    pancreatitis, or inflammation of the pancreas, and pre-cancerous cellular changes
    called pancreatic duct metaplasia in patients with type 2 diabetes treated with a class
    of drugs called incretin mimetics. These findings were based on examination of a
    small number of pancreatic tissue specimens taken from patients after they died from
    unspecified causes. FDA has asked the researchers to provide the methodology used
    to collect and study these specimens and to provide the tissue samples so the Agency
    can further investigate potential pancreatic toxicity associated with the incretin
    mimetics.
    ***
    FDA has not reached any new conclusions about safety risks with incretin
    mimetic drugs. This early communication is intended only to inform the public and
    health care professionals that the Agency intends to obtain and evaluate this new
    information. FDA will communicate its final conclusions and recommendations when
    its review is complete or when the Agency has additional information to report.
    -6-
    *** FDA has not previously communicated about the potential risk of
    pre-cancerous findings of the pancreas with incretin mimetics. Further, FDA has not
    concluded these drugs may cause or contribute to the development of pancreatic
    cancer.
    ***
    FDA is continuing to evaluate all available data to further understand this
    potential safety issue.” (Emphases added.) 
    Id. ¶ 20
          The parties disputed the scope of what the FDA actually evaluated after it announced it
    was conducting an evaluation in the 2013 Drug Safety Communication. According to Merck,
    the FDA was announcing it would “conduct a comprehensive evaluation of a possible
    association between incretin-based medications and pancreatic cancer,” and that it would
    consider the entire body of scientific research and data available to date, as well as the
    Agency’s own “ ‘further investigat[ion] [into the] potential pancreatic toxicity associated
    with the incretin mimetrics.’ ” The plaintiffs, by contrast, argued that the study the FDA
    undertook was merely “a ‘comprehensive’ evaluation of the Butler group’s findings, not of
    the ‘totality of available scientific data.’ ”
    ¶ 21       The plaintiffs argued that the 2013 Drug Safety Communication was the most significant
    statement of the FDA’s position relevant to the issue of whether “clear evidence” existed that
    the FDA would have rejected an attempt by Merck to add a pancreatic cancer warning to
    Januvia’s label through the CBE regulation. They pointed to its statements that the FDA was
    continuing to evaluate all available data to understand the issue and would communicate its
    final conclusions and recommendations when the review was complete or when it had
    additional information to report. They further cited the requirement of the FDA’s Guidance
    on Drug Safety Information that a document such as the 2013 Drug Safety Communication
    was to be updated if “data become available that provide sufficient evidence that a drug is not
    associated with the safety concern previously described by the Agency as an emerging drug
    safety issue,” and they pointed out that the FDA had not updated the 2013 Drug Safety
    Communication through any of its official methods for doing so as of the as of the time of the
    summary judgment briefing in 2017.
    ¶ 22       Fourth, Merck argued that the 2013 Drug Safety Communication was followed by a
    publication by Dr. Amy G. Egan, et al., in the February 27, 2014, issue of the New England
    Journal of Medicine titled, “Pancreatic Safety of Incretin-Based Drugs—FDA and EMA
    Assessment” (Egan article). See Amy G. Egan et al., Pancreatic Safety of Incretin-Based
    Drugs—FDA and EMA Assessment, 370 New Eng. J. Med. 794 (2014). (The “EMA” is the
    European Medicines Agency.) The significance of the Egan article was a major point of
    disagreement between the parties.
    ¶ 23       Merck argued that the Egan article constituted “an official statement of FDA,” in which
    the “FDA stated that (i) the scientific data do not support a causal association between the
    medications and pancreatic cancer, (ii) there is no evidence to support a change to the
    existing labeling, and (iii) the current warnings are adequate.” Merck pointed to the article’s
    statements that the FDA performed its own pancreatic toxicology studies with exenatide
    (Bayetta) using three rodent models of disease and a non-diseased control. Data from two of
    the models did not identify exenatide-related pancreatic injury, and the third showed
    minimal-to-moderate exacerbations of background findings after 12 weeks of treatment
    meriting further investigation. Merck pointed to the article’s statement that the FDA
    -7-
    reevaluated more than 250 toxicology studies conducted in nearly 18,000 healthy animals,
    which yielded no findings of overt pancreatic toxic effects or pancreatitis. Merck also pointed
    to a similar EMA review showing drug-induced pancreatic tumors were absent in rats and
    mice that had been treated up to 2 years with incretin-based drugs, even at doses that greatly
    exceeded the level of human clinical exposure. Merck pointed to the article’s statement that
    the FDA had required sponsors of marketed incretin-based drugs to conduct 3-month
    pancreatic toxicity studies in a rodent model of diabetes, of which three had been submitted
    reporting no treatment-related adverse effects on the pancreas. Also, three FDA pathologists
    conducted independent and blinded examinations of approximately 120 histopathology slides
    from one of the three studies, and those examinations were “generally concordant with the
    sponsor’s report.” Merck also cited the statement in the report that a pooled analysis of data
    from 14,611 patients with type 2 diabetes from 25 clinical trials in the sitagliptin (Januvia
    and Janumet) database provided no compelling evidence of an increased risk of pancreatitis
    or pancreatic cancer.
    ¶ 24       Merck argued that, based on the results of the study reported in the Egan article, the FDA
    made an affirmative decision that the scientific evidence did not warrant a change in
    Januvia’s labeling, a fact that indicated it would have rejected an attempted change through
    the CBE regulation. Merck relied on the following passage from the Egan article:
    “Both agencies [i.e., FDA and EMA] agree that assertions concerning a causal
    association between incretin-based drugs and pancreatitis or pancreatic cancer, as
    expressed recently in the scientific literature and in the media, are inconsistent with
    the current data. The FDA and the EMA have not reached a final conclusion at this
    time regarding such a causal relationship. *** The FDA and the EMA believe that the
    current knowledge is adequately reflected in the product information or labeling, and
    further harmonization among products is planned in Europe.”
    ¶ 25       The plaintiffs, by contrast, argued that, for purposes of determining whether “clear
    evidence” exists that the FDA would have rejected an attempt by Merck to add a pancreatic
    cancer warning to Januvia’s label through the CBE regulation, the second sentence from the
    above passage is significant, in which the article states the FDA had “not reached a final
    conclusion at this time regarding such a causal relationship.” The plaintiffs pointed to various
    other statements in the Egan article indicating that the issue of whether a causal association
    exists between increin-based drugs and pancreatic cancer is the subject of ongoing review
    within the FDA. Thus, the plaintiffs argued that the statements in the Egan article cannot
    amount to an “affirmative decision” by the FDA that it would have rescinded an attempt by
    Merck to amend its label under the CBE regulation, pending the outcome of that review.
    Instead, they argued that the mere fact that the FDA considers its investigation ongoing,
    when combined with the existing scientific data, indicates there exists “some basis to believe
    there is a causal relationship” between use of Januvia and pancreatic cancer, which satisfies
    the standard for adding it as an “adverse reaction” to Januvia’s label. 21 C.F.R.
    § 201.57(c)(7) (2012). They argued it also satisfies the standard for adding a warning, which
    does not require causation to be “definitely established” (id. § 201.57(c)(6)(i)), but only that
    there be “ ‘reasonable’ evidence of a causal association with the drug,” which can be met by
    “a wide range of evidence.” Supplemental Applications Proposing Labeling Changes for
    Approved Drugs, Biologics, and Medical Devices, 73 Fed. Reg. at 49,604.
    -8-
    ¶ 26       The plaintiffs further argued that the evaluation undertaken by the FDA as reported in the
    Egan article was not nearly as comprehensive as Merck suggested. The plaintiffs argued the
    study was merely a review of the findings of Dr. Butler’s group, and it did not amount to a
    rejection by the FDA of any causal connection between incretin-based drugs and pancreatic
    cancer. The plaintiffs proffered the testimony of a controlled expert witness in FDA labeling,
    Dr. Alexander Fleming, who testified that the Egan article should be interpreted as an effort
    to respond to the findings of Dr. Butler’s group and to make a “clear statement that this
    particular assertion, again, by a particular investigator, are not supported by the data [the
    FDA] reviewed.”
    ¶ 27       The parties also disputed whether the Egan article constituted an “official statement” of
    the FDA. The parties agreed it constituted an “FDA-Assigned article” under the FDA staff
    manual. Merck argued that an FDA-Assigned article represents the official position of the
    FDA, as the absence of a disclaimer on the Egan article stating that it was not an official
    statement of the FDA means it was an official statement. Merck pointed out that the article
    states it is by “the Office of New Drugs, Center for Drug Evaluation and Research, Food and
    Drug Administration” and argued that it is “replete with statements about the ‘FDA’s’
    position on the issues.” The plaintiffs, by contrast, argued the absence of a disclaimer does
    not mean the article was an official statement. Rather, they argued that, based on how it was
    published, under the staff manual and regulations, it amounts merely to “an informal
    communication that *** does not necessarily represent the formal position of FDA, and does
    not bind or otherwise obligate or commit the agency to the views expressed.” 21 C.F.R.
    § 10.85(k) (2012). The plaintiffs contended that only the document pertinent to this case that
    constitutes an “official statement” of the FDA under its staff manual is the 2013 Drug Safety
    Communication.
    ¶ 28       Fifth, Merck relied on the FDA’s denial in 2014 of a petition submitted in 2012 by the
    Public Citizen’s Health Research Group (Public Citizen), requesting that the FDA remove
    the drug Victoza (liraglutide) from the market. The parties disputed the extent to which the
    risk of pancreatic cancer was an issue in the Public Citizen’s petition, as only two paragraphs
    of the FDA’s 37-page response were dedicated to discussing pancreatic cancer. Merck
    pointed out that the FDA’s response does state that “[a]ny causal association between
    exposure to Victoza and pancreatic cancer is indeterminate at this time.” The response further
    states,
    “In our review of 49 unique cases recovered from [the FDA’s adverse event database]
    we found no new evidence regarding the risk of pancreatic carcinoma in association
    with the use of Victoza that would support any changes to the current approved
    labeling. Therefore, any suspicion of causal association between exposure to Victoza
    and pancreatic cancer is indeterminate at this time.”
    ¶ 29       The plaintiffs, by contrast, pointed out that Public Citizen’s petition did not request a
    pancreatic cancer warning for Victoza. They argued the FDA’s decision not to mandate the
    addition of a warning is not the same as determining that it would reject a warning the
    manufacturer attempted to add through the CBE regulation. The plaintiffs cited the testimony
    of their regulatory expert, Dr. Fleming, that the FDA’s denial of the Public Citizen petition
    does not support the conclusion that FDA found that adverse events reports do not support
    changes to the current approved labeling for Victoza. They pointed out that, for purposes of
    assessing clear evidence that the FDA would have rejected an attempted label change by
    -9-
    Merck, Dr. Fleming testified it was more significant that the FDA stated it was
    “indeterminate” whether any causal association existed between Victoza and pancreatic
    cancer.
    ¶ 30        Sixth, Merck relied on a 2014 “FDA Briefing Document” concerning the drug Saxenda
    (liraglutide). Merck pointed to two statements by FDA reviewers in that document. The first
    states, “Risk for pancreatic cancer has more recently emerged as a concern with GLP-1-based
    therapies, including liraglutide. *** However, animal, observational, and clinical trial data
    reviewed by FDA to date have not supported a causal association.” The second states,
    “To date, studies have been inconclusive in evaluating the risk of pancreatic cancer
    with incretin mimetric use. Both FDA and the [EMA] have explored multiple data
    streams to evaluate pancreatic toxicity as a potential drug safety signal, which to date,
    do not support pancreatic cancer as an incretin mimetic-mediated event.”
    ¶ 31        The plaintiffs pointed out that the FDA Briefing Document contained a disclaimer, which
    Merck did not include in its submission to the trial court, stating the assessments,
    conclusions, and recommendations therein “do not necessarily represent the final position of
    the individual reviewers, nor do they necessarily represent the final position of the Review
    Division or Office.” The plaintiffs pointed to other statements in the FDA Briefing Document
    that, they argued, support their contention that the FDA would not have rejected an attempted
    label change by Merck through the CBE regulation. For example, they point out that the
    document confirms “a disproportionate number of liraglutide associated thyroid and
    pancreatic cancers” and “the medical literature offers inconclusive data to determine the role
    that liraglutide may play in these malignancies.”
    ¶ 32        Finally, the plaintiffs responded to Merck’s overall reliance on the above evidence by
    arguing that the evidence demonstrated Merck also had “new safety information” that it
    could have provided to the FDA to substantiate the need for a change to Januvia’s label under
    the CBE regulation. See Supplemental Applications Proposing Labeling Changes for
    Approved Drugs, Biologics, and Medical Devices, 73 Fed. Reg. at 49,604-05. The plaintiffs
    argued this “new safety information” included a comprehensive signal assessment provided
    to Merck in 2013 by Health Canada that found the “use of Januvia may be associated with an
    increased risk of cancer of the pancreas.” The plaintiffs cited testimony by Dr. Fleming
    giving the opinion that this study by Health Canada outlines both the biological plausibility
    and disproportionate spontaneous adverse event reports, which would amount to “reasonable
    evidence of a causal association” between use of Januvia and pancreatic cancer. 21 C.F.R.
    § 201.57(c)(6)(i) (2012). The plaintiffs also argued that Merck could have provided the FDA
    with “new safety information” that clinical trials had shown an imbalance of pancreatic
    cancer cases in users of incretin based drugs. The plaintiffs argued that Merck’s regulatory
    expert admitted in his deposition that an imbalance in clinical trials could affect FDA’s
    assessment.
    ¶ 33        The trial court issued a written order reviewing the above evidence and the parties’
    dispute about whether the “clear evidence” test should be decided by the judge or by the jury.
    The trial court noted that the case was not one in which Merck was able to supply evidence
    of its own attempts to change Januvia’s label and FDA’s actual responses to that request.
    Rather, Merck had submitted circumstantial evidence of how the FDA would have responded
    if it had tried to do so, in the form of clinical studies, FDA correspondence, clinical data,
    expert depositions, periodicals, and expert reports. The plaintiffs had submitted similar
    - 10 -
    evidence in opposition to the motion. The trial court stated that, whether the issue of “clear
    evidence” was decided by a judge or jury, the decision required weighing the evidence,
    drawing inferences from the facts presented, comparing evidence that is not similar, and
    assessing the credibility of that evidence. The trial court recognized that under both Illinois
    and federal law, these responsibilities are traditionally the function of a jury, not a judge. The
    trial court stated that the dispute before it “involves extremely complex scientific issues that
    require explanation and context from the parties’ witnesses,” and thus the decision would be
    best made after a full trial in which all evidence is presented. Thus, the trial court concluded
    the “clear evidence” inquiry should be resolved by the jury. It found that genuine issues of
    material fact prevented it from granting summary judgment in favor of Merck on its
    affirmative defense that the plaintiffs’ failure-to-warn claims were preempted by federal law.
    At Merck’s request, the trial court certified the question of law to this court as set forth
    above.
    ¶ 34                                            ANALYSIS
    ¶ 35       The certified question requires us to determine whether it is for a judge or jury to decide
    in a pharmaceutical product liability case whether a drug manufacture has shown “clear
    evidence” that the FDA would not have permitted it to include the plaintiffs’ requested
    warning in the labeling of the drug at issue. In most reported cases where this issue has
    arisen, the question of whether that standard has been satisfied has been resolved by the
    judge. See, e.g., In re Depakote, 
    87 F. Supp. 3d 916
    , 921-24 (S.D. Ill. 2015) (granting
    defendant’s motion in limine to bar argument it could have changed label through CBE
    regulation); Cross v. Forest Laboratories, 
    102 F. Supp. 3d 896
    , 899-901 (N.D. Miss. 2015)
    (ruling on defendant’s motion for summary judgment that plaintiff’s failure to warn claim
    was not preempted); but see Maya v. Johnson & Johnson, 
    97 A.3d 1203
    , 1222 (Pa. Super. Ct.
    2014) (discussing jury instruction on clear evidence test). However, almost universally, this
    has been done without analysis or discussion of whether the question is one for the judge or
    jury. The few reported cases that have specifically addressed this issue are not in agreement
    about who the decision maker should be. The Third Circuit has held it should be decided by a
    jury. 
    Fosamax, 852 F.3d at 282
    . A federal district court in California held it should be a
    question for the judge, although the Ninth Circuit vacated that decision on other grounds.
    In re Incretin-Based Therapies Products Liability Litigation, 
    142 F. Supp. 3d 1108
    , 1114
    (S.D. Cal. 2015), vacated, 721 F. App’x 580 (9th Cir. 2017).4
    ¶ 36       In this case, the trial court concluded the question was one for the jury. Merck argues on
    appeal that it should be decided by a judge. The plaintiffs argue it should be decided by a
    jury. The certified question itself presents an issue of law, which we review de novo.
    De Bouse v. Bayer AG, 
    235 Ill. 2d 544
    , 550 (2009).
    ¶ 37       The ultimate legal effect of this inquiry involves the federal preemption of state law,
    something Congress has the power to do under the supremacy clause of the United States
    Constitution. U.S. Const., art. VI, cl. 2. Three types of federal preemption exist: (1) express
    4
    Both the Seventh Circuit and the Tenth Circuit have acknowledged the decision reached by the
    Third Circuit in the Fosamax case, but neither court needed to resolve the issue to decide the case
    before it. Dolin v. GlaxoSmithKline LLC, 
    901 F.3d 803
    , 812-13 (7th Cir. 2018); Cerveny v. Aventis,
    Inc., 
    855 F.3d 1091
    , 1098, 1103 n.11 (10th Cir. 2017)
    - 11 -
    preemption, shown by a clear expression of congressional intent to preempt state law;
    (2) field preemption, shown by comprehensive legislation demonstrating a clear
    congressional intent to occupy the entire regulatory field; and (3) conflict preemption, shown
    by a conflict between state and federal law. City of Chicago v. Comcast Cable Holdings,
    L.L.C., 
    231 Ill. 2d 399
    , 404 (2008). This case involves only the third category, conflict
    preemption, which occurs when it is impossible for a private party to comply with both state
    and federal requirements. Kinkel v. Cingular Wireless, LLC, 
    223 Ill. 2d 1
    , 18 (2006); 
    PLIVA, 564 U.S. at 618
    . This includes duties imposed by court decisions applying state tort law.
    
    PLIVA, 564 U.S. at 608-09
    . The party raising the defense of conflict preemption must
    “demonstrate that it was impossible for it to comply with both federal and state
    requirements.” 
    Wyeth, 555 U.S. at 573
    . The Supreme Court has described impossibility
    preemption as a “demanding defense.” 
    Id. In the
    pharmaceutical labeling context, the
    Supreme Court has also recognized the importance of state law failure-to-warn cases as a
    complement to federal drug regulation, as a mechanism for enforcing the requirement that
    drug manufacturers, not the FDA, bear primary responsibility for the adequacy of their
    drug’s labeling at all times. 
    Id. at 578-79.
    ¶ 38        Merck’s first argument on appeal is that, because the question is ultimately one of federal
    preemption, it should be considered a question of law to be decided by a judge. Merck cites
    various cases from the Illinois Supreme Court that have stated that federal preemption
    presents a question of law. See, e.g., Comcast Cable 
    Holdings, 231 Ill. 2d at 404
    (“Because
    federal preemption presents a question of law, it is subject to de novo review.”). Merck goes
    on to argue that cases considering preemption as a question of law “are consistent with
    Wyeth, which requires primarily legal, not factual, analysis and thus presents a question of
    law for resolution by the court.” Merck argues that the “clear evidence” test requires the
    decision maker to review agency action, the evidence of which can be found entirely in the
    public record, and determine whether that action demonstrates that the agency reached a
    certain conclusion in light of the agency’s complex regulatory regime.
    ¶ 39        This court has acknowledged in the past that, in some instances, determining whether a
    particular issue presents a question of law to be decided by a judge or a question of fact to be
    decided by a jury can be difficult. Kujbida v. Horizon Insurance Agency, Inc., 
    260 Ill. App. 3d 1001
    , 1004 (1994) (citing Pullman-Standard v. Swint, 
    456 U.S. 273
    , 288 (1982) (noting the
    absence of any “rule or principle that will unerringly distinguish a factual finding from a
    legal conclusion”)). In most cases, questions of federal preemption present the types of
    inquiries judges can resolve as a purely legal issue. Often the inquiry is merely one involving
    statutory interpretation, which is a traditionally the function of a judge. For example, the
    inquiry may involve determining whether Congress clearly expressed an intent to preempt
    state law (see Moskowitz v. Washington Mutual Bank, F.A., 
    329 Ill. App. 3d 144
    , 147 (2002)),
    whether Congress has legislated in such a comprehensive way as to demonstrate an attempt
    to occupy an entire regulatory field (see Kellerman v. MCI Telecommunications Corp., 
    112 Ill. 2d 428
    , 438-44 (1986)), or whether a federal statute or regulation conflicts with a state
    one (see Carter v. SSC Odin Operating Co., 
    237 Ill. 2d 30
    , 39-50 (2010)).
    ¶ 40        However, it is also clear that the ultimate legal question of whether a claim under state
    law qualifies for preemption by federal law may depend on the existence of an underlying
    question of fact. See 
    Fosamax, 852 F.3d at 288
    (citing Boyle v. United Technologies Corp.,
    
    487 U.S. 500
    , 514 (1988)); Brown v. Earthboard Sports USA, Inc., 
    481 F.3d 901
    , 913 (6th
    - 12 -
    Cir. 2007); Norfolk Southern Ry. Co. v. Box, No. 06 C 0641, 
    2007 WL 1030320
    , at *14 (N.D.
    Ill. Mar. 30, 2007); Uphold v. Illinois Workers’ Compensation Comm’n, 
    385 Ill. App. 3d 567
    ,
    571 (2008). Facts which determine the outcome of litigation often necessitate the
    simultaneous interpretation of a legal standard and the application of that standard to factual
    material from which factual inferences must be drawn, giving rise to what is characterized as
    a mixed question of law and fact. 
    Kujbida, 260 Ill. App. 3d at 1004
    (citing Tucker v.
    Spalding, 80 U.S. (13 Wall.) 453, 455 (1872), and Baumgartner v. United States, 
    322 U.S. 665
    , 671 (1944)). We believe that the correct characterization of the “clear evidence” inquiry
    under Wyeth is that it is a mixed question of law and fact.
    ¶ 41        We disagree with Merck’s contention that the Wyeth inquiry “requires primarily legal,
    not factual, analysis.” Above we set forth in detail the nature of the parties’ dispute on this
    issue to demonstrate that it is substantively a dispute about the state of scientific and medical
    knowledge linking the use of Januvia to pancreatic cancer at various points in time and what
    inferences should be drawn from that knowledge about how the FDA would have responded
    if Merck had attempted to change Januvia’s label. The FDA’s regulations provide the legal
    standards of causation and proof through which that dispute must be analyzed, but the
    substantive question to be resolved is whether enough was shown through scientific, medical,
    or other evidence to allow the decision maker to draw a clear conclusion that if Merck had
    attempted through the CBE regulation to add a pancreatic cancer warning to Januvia’s
    labeling, the FDA would have rescinded that change. See 
    Wyeth, 555 U.S. at 571
    ; 
    PLIVA, 564 U.S. at 624
    n.8. Within this broader dispute are various subsidiary disputes, such as the
    scope of what the FDA studied scientifically concerning the link between incretin-based
    drugs and pancreatic cancer and what scientific and medical conclusions it drew from its
    examination of those issues. Another subsidiary dispute is how the FDA’s actions concerning
    other incretin-based drugs, such as Bayetta, Victoza, and Saxenda, support the conclusion of
    how it would have viewed an attempted change to Januvia’s label. Yet another example is the
    question of whether Merck had other “new safety information” available that it could have
    used to substantiate to the FDA that a causal association existed between the use of Januvia
    and pancreatic cancer and how this would have affected the FDA’s decision to allow Merck
    to change Januvia’s label through the CBE regulation. We do not believe these kinds of
    issues can be classified as questions of law.
    ¶ 42        As the parties framed their dispute in the trial court, it does not present a case where the
    issue can be resolved solely by applying the language of FDA regulations to undisputed facts
    that allow for only one interpretation. Although Merck argues to the contrary, we do not
    believe this case presents a situation in which the issue can be resolved simply by looking at
    documentary evidence in light of those regulations. We agree with the trial court that far
    more context and explanation would be necessary to appropriately answer this question. Both
    the plaintiffs and Merck have proffered expert witnesses to testify about how the FDA
    actually makes drug-labeling decisions, what the FDA has studied or done with respect to the
    link between various incretin-based drugs and pancreatic cancer, what inferences can fairly
    be drawn from public or internal statements by FDA employees, and ultimately what
    conclusions should be drawn from the evidence about how the FDA actually would have
    responded if faced with an attempt by Merck to add a pancreatic cancer warning to Januvia’s
    labeling. Regardless of whether the decision maker is the judge or jury, we do not believe
    that the decision could be made without hearing all of the testimony by and
    - 13 -
    cross-examination of all the expert witnesses on all scientific, medical, and regulatory issues
    in the case.
    ¶ 43       We believe that Merck overstates the extent to which an understanding of the FDA’s
    “complex regulatory regime” plays the determinative role in the Wyeth inquiry. We find the
    FDA regulations cited to us by both parties, as well as those discussed in the pertinent case
    law (see, e.g., 
    Wyeth, 555 U.S. at 568
    -73), to be similar to the kinds of legal standards of
    causation and burdens of proof that juries regularly apply when making decisions in tort
    cases. For example, the regulations at issue provide that a manufacturer must revise a drug’s
    labeling to include a warning about a clinically significant hazard as soon as there is
    “reasonable evidence of a causal association with a drug,” although a causal relationship
    need not have been definitely established. 21 C.F.R. §§ 201.57(c)(6)(i), 314.70(c)(6)(iii)(A)
    (2012). The comments to the final rule elaborate that a manufacturer may revise a label under
    the CBE regulation “even if that evidence would not also support a higher evidentiary
    standard, such as a finding that there is a ‘preponderance’ of evidence that a product actually
    causes a particular kind of adverse event.” Supplemental Applications Proposing Labeling
    Changes for Approved Drugs, Biologics, and Medical Devices, 73 Fed. Reg. at 49,604.
    These concepts of “reasonable evidence,” “causal association,” and evidentiary standards or
    proof are the same kinds of concepts that we entrust to properly-instructed juries to resolve in
    almost every tort case. See Illinois Pattern Jury Instructions, Civil, No. 15.01 (2011)
    (hereinafter IPI Civil No. 15.01) (defining “proximate cause”); IPI Civil No. 21.01 (defining
    burden of proof in civil cases). We see no reason why a different practice would be required
    with the Wyeth inquiry.
    ¶ 44       Rather, we find that the issue presented by the Wyeth inquiry is simply a particular
    application of the task juries regularly perform in tort cases, determining what the evidence
    shows probably would have happened if the allegedly wrongful conduct had not occurred. In
    this case, the allegedly wrongful conduct is the failure to add a pancreatic cancer warning to
    the labeling for Januvia. The Wyeth inquiry asks whether, if this had not occurred, and Merck
    did in fact add such a warning through the CBE regulation, there is nevertheless clear
    evidence that the FDA would have rescinded it. Juries are commonly given the task of
    resolving questions of what probably would have happened absent allegedly wrongful
    conduct. See, e.g., Lee v. Chicago Transit Authority, 
    152 Ill. 2d 432
    , 455 (1992)
    (cause-in-fact aspect of proximate cause inquiry requires jury to determine whether, absent
    defendant’s conduct, injury still would have occurred); Clark v. Children’s Memorial
    Hospital, 
    2011 IL 108656
    , ¶ 29 (determining compensatory damages requires jury to
    determine “the position [the injured party] would have occupied if the wrong had not been
    committed”); Buck v. Charletta, 
    2013 IL App (1st) 122144
    , ¶¶ 68-73 (in medical negligence
    cases involving failure to communicate medical information, jury determines whether
    plaintiff would have received the same medical treatment if communication had occurred);
    Nelson v. Quarles & Brady, LLP, 
    2013 IL App (1st) 123122
    , ¶¶ 71-73 (in legal malpractice
    cases, jury determines what the outcome of underlying litigation would have been if the
    alleged malpractice had not occurred); Adams v. Family Planning Associates Medical Group,
    Inc., 
    315 Ill. App. 3d 533
    , 544-46 (2000) (jury applying doctrine of res ipsa loquitur
    determines if injury would ordinarily have occurred in absence of negligence).
    ¶ 45       Despite the fact that the ultimate legal effect of the Wyeth inquiry involves federal
    preemption, we believe that its factual underpinnings require it to be classified not as a pure
    - 14 -
    question of law, but as a mixed question of fact and law. Where mixed questions are
    presented, their resolution can involve an allocation of function between judge and jury.
    
    Kujbida, 260 Ill. App. 3d at 1004
    . However, where a jury is the trier of fact, the usual
    procedure is that the trial judge instructs the jury as to the legal standard which should
    govern, and the jury then determines the ultimate fact by applying that legal standard to the
    evidence presented. 
    Id. (citing Tucker,
    80 U.S. (13 Wall.) at 455); see also United States v.
    Gaudin, 
    515 U.S. 506
    , 512 (1995) (“the application-of-legal-standard-to-fact sort of question
    ***, commonly called a ‘mixed question of law and fact,’ has typically been resolved by
    juries”). We believe that is the proper procedure to be employed in answering the Wyeth
    inquiry presented in this case.
    ¶ 46        Merck points out that courts faced with motions involving preemption under the Wyeth
    inquiry “overwhelmingly have accepted or rejected the defense themselves with no
    involvement from the jury.” We have reviewed the many cases cited to us by Merck, and we
    do agree that it appears that in most (although not all) of the reported cases involving the
    Wyeth inquiry, the inquiry has been decided by the trial judge or by the reviewing court.
    ¶ 47        In Fosamax, which is the only federal court of appeals case to have specifically analyzed
    the issue of whether a judge or jury should decide the Wyeth inquiry, the Third Circuit
    rejected this as a persuasive reason for holding that the issue should be decided by the judge
    and not the jury. 
    Fosamax, 852 F.3d at 286-88
    . The Third Circuit noted that while Wyeth
    itself did not indicate whether the “clear evidence” test involved a legal or factual question,
    and it was not possible to divine a clear answer from the Supreme Court’s application of the
    test in Wyeth itself, the Supreme Court did decide that the evidence presented in Wyeth was
    not sufficient to satisfy the test. 
    Id. at 286-87.
    The Third Circuit recognized that given this
    fact, “many federal courts that have applied the Wyeth preemption test have simply compared
    the evidence presented in their cases to the evidence presented in Wyeth.” 
    Id. at 287.
    As an
    example of a case where this occurred, the Third Circuit discussed the Seventh Circuit’s
    opinion in Mason, noting that in that case the court “walked through the record evidence and
    concluded that, ‘in light of the extensive showing required by [Wyeth],’ the manufacturer
    ‘did not meet its burden of demonstrating by clear evidence that the FDA would have
    rejected a label change.’ ” 
    Id. (quoting Mason,
    596 F.3d at 396). It noted that in Mason, the
    Seventh Circuit “did not explain why the Wyeth test should be resolved by the court in the
    first instance.” 
    Id. It then
    went on to state:
    “We do not lightly discount the wisdom of our sister circuits and the district courts
    that have grappled with these issues. But there is a difference between rejecting
    another court’s considered judgment, on the one hand, and taking up an issue that has
    not been thoroughly analyzed, on the other. Furthermore, the approach taken by our
    sister circuits would be entirely consistent with our decision that the ‘clear evidence’
    test is a fact question that is ultimately for a jury to decide. After all, by comparing
    the evidence presented in these cases with the evidence presented in Wyeth, these
    circuits are in fact engaging in a summary judgment analysis, even if they do not
    name it.” 
    Id. at 287-88.
           We agree with this assessment by the Third Circuit. We do not believe that the fact that the
    issue has been decided by the trial judge in most cases is a valid reason for us to hold that this
    fact-specific decision should be resolved by the trial judge in all cases.
    - 15 -
    ¶ 48       After reviewing the cases cited to us by Merck, we have several observations. First,
    numerous cases where the district judges have resolved the issue contain statements to the
    effect that “application of the clear evidence standard is necessarily fact specific.” Dobbs v.
    Wyeth Pharmaceuticals, 
    797 F. Supp. 2d 1264
    , 1270 (W.D. Okla. 2011); In re 
    Depakote, 87 F. Supp. 3d at 922
    (same); In re Incretin-Based 
    Therapies, 142 F. Supp. 3d at 1115-16
           (same); Koho v. Forest Laboratories, Inc., 
    17 F. Supp. 3d 1109
    , 1118 (W.D. Wash. 2014)
    (“the clear evidence standard is a fact based inquiry that depends on the express type of
    warning at issue and the particular facts of each case”); Seufert v. Merck Sharp & Dohme
    Corp., 
    187 F. Supp. 3d 1163
    , 1170 (S.D. Cal. 2016) (it is a “fact specific inquiry dependent
    on the particular warning at issue in each case”); Lofton v. McNeil Consumer & Specialty
    Pharmaceuticals, 
    682 F. Supp. 2d 662
    , 677 (N.D. Tex. 2010) (court must “determine if there
    is a material question of fact whether ‘the FDA would not have approved a change’ to [the
    drug’s] label” (quoting 
    Wyeth, 555 U.S. at 571
    )). As discussed above, we concur with the
    statements by these courts that this is a fact-specific inquiry.
    ¶ 49       Second, we believe the cases cited to us by Merck fall into several categories. The
    minority of cases have involved the proverbial “smoking gun” evidence of an actual rejection
    by the FDA of the proposed warning at issue. In such cases, the court can determine that no
    reasonable decision maker applying the “clear evidence” standard could ever conclude that
    the FDA would have approved the label change. See 
    Dolin, 901 F.3d at 813
    (manufacturer
    changed drug label to add warning under CBE regulation and FDA ordered manufacturer to
    remove the warning); 
    Cerveny, 855 F.3d at 1103
    n.11 (FDA’s multiple rejections of citizen’s
    petition seeking to add virtually identical warning to drug at issue “would foreclose any
    reasonable juror from finding that the FDA would have approved warnings” proposed by
    plaintiff); Rheinfrank v. Abbott Laboratories, Inc., 680 F. App’x 369, 386 (6th Cir. 2017)
    (several years after injury at issue, manufacturer sought FDA approval to add warning and
    FDA responded that the warning should not be added to label); In re Depakote, 
    87 F. Supp. 3d
    at 921-23 (same); Christison v. Biogen Idec Inc., 
    199 F. Supp. 3d 1315
    , 1347-48 (D. Utah
    2016) (manufacturer met with FDA regulators twice to discuss potential labeling change at
    issue, and FDA rejected the proposed labeling changes); Amos v. Biogen Idec Inc., 249 F.
    Supp. 3d 690, 699-700 (W.D.N.Y. 2017) (same); Reckis v. Johnson & Johnson, 
    28 N.E.3d 445
    , 457-58 (Mass. 2015) (FDA’s rejection of citizen’s petition proposing specific mention
    of two medical conditions on label because most consumers were unfamiliar with the
    conditions constituted clear evidence it would have rejected proposed labeling change adding
    names of conditions).
    ¶ 50       The majority of the cases cited to us by Merck have involved situations in which the
    courts reviewed the drug manufacturer’s evidence and found that it was inadequate to
    support the affirmative defense of conflict preemption. 
    Mason, 596 F.3d at 393-96
    ; Gaeta v.
    Perrigo Pharmaceuticals Co., 
    630 F.3d 1225
    , 1237 (9th Cir. 2011), vacated on other
    grounds, 
    565 U.S. 973
    (2011); McWilliams v. Novartis AG, No. 2:17-CV-14302, 
    2018 WL 3369655
    , at *3-5 (S.D. Fla. July 9, 2018); In re Testosterone Replacement Therapy Products
    Liability Litigation Coordinated Pretrial Proceedings, No. 14 C 1748, 
    2017 WL 1836435
    , at
    *7-11 (N.D. Ill. May 8, 2017); Batoh v. McNeil-PPC, Inc., 
    167 F. Supp. 3d 296
    , 318-20 (D.
    Conn. 2016); 
    Cross, 102 F. Supp. 3d at 899-901
    ; Muzichuck v. Forest Laboratories, Inc., No.
    1:07CV16, 
    2015 WL 235226
    , at *6-8 (N.D. W. Va. Jan. 16, 2015); 
    Koho, 17 F. Supp. 3d at 1116-19
    ; Wells v. Allergan, Inc., 
    2013 WL 389147
    , at *6-7 (W.D. Okla. Jan. 31, 2013);
    - 16 -
    Newman v. McNeil Consumer Healthcare, No. 10-CV-01541, 
    2012 WL 39793
    , at *5-11
    (N.D. Ill. Jan. 9, 2012); Dorsett v. Sandoz, Inc., 
    699 F. Supp. 2d 1142
    , 1156-60 (C.D. Cal.
    2010); Baumgardner v. Wyeth Pharmaceuticals, No. 06-2518, 
    2010 WL 3431671
    , at *1-2
    (E.D. Pa. Aug. 31, 2010); Aaron v. Wyeth, No. 2:07cv927, 
    2010 WL 653984
    , at *3-6 (W.D.
    Pa. Feb. 19, 2010); Forst v. SmithKline Beecham Corp., 
    639 F. Supp. 2d 948
    , 953-54 (E.D.
    Wis. 2009); Hayes v. SmithKline Beecham Corp., No. 07-CV-0682-CVE-TLW, 
    2009 WL 4912178
    , at *4 (N.D. Okla. Dec. 14, 2009). We believe it is significant that, in these cases
    where the issue was decided by the judge, the conclusion was that the evidence was
    insufficient to support the affirmative defense, on which the defendant would have the
    burden of proof at trial. Generally speaking, when a trial court can decide on the merits that,
    regardless of whether the facts are disputed, the defendant’s best evidence is not of the
    quantum or quality of proof necessary to support the affirmative defense pled, this is a proper
    basis for determining that the defense as insufficient as a matter of law. When that occurs,
    there is no need for a trial on the merits of the defense. But that is not the same thing as
    saying that a trial court can just as easily decide on the merits that, despite the existence of
    genuine issues of material fact, the defendant should be entitled to judgment as a matter of
    law on the defense. The former is usually proper, but the latter normally requires that the
    issue be submitted to the jury for a decision on the merits. We believe these cases above fall
    into the former category, and we do not read them to stand for the proposition that the latter
    procedure is appropriate where the question involved is the Wyeth inquiry.
    ¶ 51       Of the reported decisions cited to us by Merck, it appears that only in Dobbs, 797 F.
    Supp. 2d at 1271-80, In re Incretin-Based 
    Therapies, 142 F. Supp. 3d at 1120-32
    , and
    Seufert, 1
    87 F. Supp. 3d
    at 1170-78, did the district judge resolve disputed facts in favor of
    the drug manufacturer and grant summary judgment on the preemption defense in the
    defendant’s favor.5 Of these three cases, the only one in which the court addressed whether
    the issue presented a decision for the judge or jury was In re Incretin-Based 
    Therapies, 142 F. Supp. 3d at 1114
    , which was vacated on other grounds. Seufert was decided by the same
    district judge as In re Incretin-Based Therapies, and it did incorporate by reference part of
    the discussion from In re Incretin-Based Therapies. Seufert, 1
    87 F. Supp. 3d
    at 1169 n.10. In
    Dobbs, the court did not address or mention the issue, and we note that the reasoning of
    Dobbs has been questioned by later courts. See Muzichuck, 
    2015 WL 235226
    , at *8.
    ¶ 52       In the court’s analysis of the issue in In re Incretin-Based Therapies, the district judge
    stated only that he had considered the parties’ arguments, the relevant authority, and the
    pending cross-motions and was “satisfied that preemption presents purely a question of law
    appropriate for resolution by summary judgment.” In re Incretin Based Therapies, 
    142 F. 5
                 Merck cites a California state trial court order in which the trial judge granted summary judgment
    for the drug manufacturer on the Wyeth inquiry despite the existence of disputed facts, after concluding
    that the issue should be decided the trial judge. The California Court of Appeal reversed the trial court’s
    judgment on other grounds, and in doing so it declined to address the issue of whether the Wyeth inquiry
    presents a question to be decided by a judge or jury. Rotondo v. Amylin Pharmaceuticals, Inc., No.
    B275314, 
    2018 WL 5800780
    , at *9 (Cal. Ct. App. Nov. 6, 2018) (unpublished opinion). Because of
    this, and because the decisions of out-of-state trial courts are not precedential (In re A.C., 2016 IL App
    (1st) 153047, ¶ 47), we decline to specifically discuss this order. We note that the reasons cited by the
    California trial judge are largely the same as those advanced by Merck in this case that we have
    addressed and rejected elsewhere in our analysis.
    - 17 -
    Supp. 3d at 1114. The only supporting citations were to Dobbs (which, as mentioned, did not
    discuss this issue) and to Bank of America v. City & County of San Francisco, 
    309 F.3d 551
    ,
    566 (9th Cir. 2002), which involved the preemption by a federal statute of certain municipal
    ordinances pertaining to ATM fees and did not discuss whether the jury or judge should
    decide the question. In re Incretin Based 
    Therapies, 142 F. Supp. 3d at 1114
    . The court
    further stated in a footnote that its “fact-intensive analysis” was suitable for determination by
    the judge through summary judgment because “[t]he factual inquiry is limited to what the
    FDA has done, if anything, in addressing the need for a warning on a particular drug” in
    contrast “to considering the specific data relied upon by the FDA.” 
    Id. at 1115
    n.5. We do not
    find persuasive reasoning in the In re Incretin Based Therapies decision or any of the other
    cases cited to us by Merck as to why this primarily factual issue should be decided by the
    trial judge and not the jury in this case. Furthermore, the district judge in the In re Incretin
    Based Therapies case relied on the fact that the plaintiffs had filed a cross-motion for
    summary judgment on the affirmative defense and found that fact “supports the Court’s
    conclusion that summary judgment is appropriate for resolution of Defendants’ conflict
    preemption defense.” 
    Id. at 1114-15.
    That situation is not present in this case.
    ¶ 53        Merck’s next argues that the lower courts and Supreme Court in the Wyeth case treated
    preemption as a matter of law. Wyeth involved a failure-to-warn claim under Vermont tort
    law involving the drug Phenergan, a medication that posed a risk of causing gangrene when
    administered through “IV push” (direct injection into the vein) as opposed to “IV drip” (slow
    administration through a hanging intravenous bag). 
    Wyeth, 555 U.S. at 558-59
    . The plaintiff
    contended IV drip was the only safe way to administer Phenergan, and its labeling should
    have contraindicated the use of IV push. 
    Id. at 559-60.
    The Supreme Court’s opinion reflects
    that the issue of conflict preemption was first raised in Wyeth’s motion for summary
    judgment, which the trial court denied. 
    Id. at 560-61.
    The Supreme Court noted the trial
    court, in denying summary judgment, had “reviewed the sparse correspondence between
    Wyeth and the FDA about Phenergan’s labeling and found no evidence that Wyeth had
    ‘earnestly attempted’ to strengthen the intra-arterial injection warning or that the FDA had
    ‘specifically disallowed’ stronger language.” 
    Id. at 561.
    The case then proceeded to trial. The
    Supreme Court again noted that “[t]he trial record also contains correspondence between
    Wyeth and the FDA discussing Phenergan’s label.” 
    Id. The most
    notable aspect of that
    evidence was the fact that Wyeth had submitted a proposed labeling change related to the
    risk of arterial exposure to Phenergan, received no response from the FDA for eight years,
    and then the FDA instructed Wyeth to retain the verbiage of its current label regarding
    intra-arterial injection. 
    Id. at 561-62.
    ¶ 54        The jury rendered a verdict for the plaintiff. 
    Id. at 562.
    Wyeth then raised its conflict
    preemption argument again by filing a posttrial motion seeking judgment as a matter of law
    on that basis. 
    Id. The Supreme
    Court’s opinion noted that the trial judge made “findings of
    fact based on the trial record.” 
    Id. It noted
    that in denying the posttrial motion, “the trial court
    found ‘no evidence in this record that either the FDA or the manufacturer gave more than
    passing attention to the issue of’ IV-push versus IV-drip administration.” 
    Id. at 572.
    The
    Supreme Court of Vermont affirmed the trial court’s denial of Wyeth’s posttrial motion. 
    Id. at 563.
    ¶ 55        The United States Supreme Court affirmed. As stated above, it held that state-law claims
    based on the failure to include warnings in a drug’s labeling are not federally preempted,
    - 18 -
    provided the drug manufacturer could have added the warning under the CBE regulation. 
    Id. at 573.
    The Court held that it would not conclude that it was impossible for Wyeth to comply
    with both federal and state requirements “absent clear evidence that the FDA would not have
    approved a change to Phenergan’s label” if Wyeth had tried to make one through the CBE
    regulation. 
    Id. at 571.
    ¶ 56       Merck argues that we should find significance in the fact that the Supreme Court did not
    remand the case for a jury to decide whether such “clear evidence” was present. Merck
    further argues that we should find it significant that “at no time did the Wyeth Court indicate
    that the lower courts had been wrong to treat the question of preemption as one of law for the
    court,” and the Supreme Court treated it the same.
    ¶ 57       However, we agree with the Third Circuit that it is not “possible to divine a clear answer
    from the Supreme Court’s application of the test in Wyeth itself” whether it presents a
    question to be decided by a judge and not a jury in all instances. 
    Fosamax, 852 F.3d at 286
    .
    Procedurally, Wyeth involved the denial of a posttrial motion for judgment as a matter of law.
    The Supreme Court affirmed the rulings by the lower courts that the evidence presented by
    Wyeth was insufficient to establish the affirmative defense of preemption. 
    Wyeth, 555 U.S. at 572-73
    . Having ruled that the evidence was insufficient to establish the affirmative defense,
    there was no need for the Supreme Court to remand the case for a jury to decide whether that
    evidence amounted to “clear evidence that the FDA would not have approved a change to
    Phenergan’s label.” 
    Id. at 571.
    Thus, we reject Merck’s argument that, for the purpose of the
    issue we are deciding, we should find significance in the fact that the Supreme Court did not
    remand the case. We do not discern any direction from the Supreme Court’s application of
    the test in Wyeth that judges and not juries should resolve the “clear evidence” test when
    doing so would require deciding genuine issues of material fact.
    ¶ 58       Merck next argues that the Wyeth inquiry should be treated as a question for resolution by
    the judge because determining what conclusion the FDA reached is similar to judicial review
    of the correctness of administrative agency action. Merck argues that the decision maker in
    the “clear evidence” determination must discern from the FDA’s words and action whether
    there is “clear evidence” that the agency reached a regulatory conclusion that the available
    science did not support a warning. It argues that “Wyeth preemption is similar to an
    assessment of whether an agency acted arbitrarily and capriciously,” in that both inquiries
    require courts to “review the administrative record, examine the words and conduct of the
    relevant agency actors, and decide for themselves.”
    ¶ 59       Although some cases involving the Wyeth inquiry may simply require review of an actual
    FDA decision, we disagree that the dispute Merck and the plaintiffs presented to the trial
    court in this case was akin to judicial review of administrative agency action. We believe
    there is a significant difference between the question presented to the trial court in this case
    and a typical administrative review case. Put simply, when a court reviews an action or
    decision by an administrative agency, there exists an actual, specific action taken or decision
    made by an agency with substantive expertise in the subject matter, which a court reviews for
    compliance with certain legal standards. In almost all such cases, the court employs a
    standard of review that gives substantial deference to the agency’s action or decision, by
    ensuring it was not arbitrary and capricious or contrary to the manifest weight of the
    evidence. See Greer v. Illinois Housing Development Authority, 
    122 Ill. 2d 462
    , 496 (1988).
    The court does not substitute its own reasoning or judgment for that of the agency. 
    Id. at 506.
    - 19 -
    The substantive correctness of the decision or action is usually not as significant as ensuring
    that the agency complied with the law in reaching that decision or taking that action.
    ¶ 60       Here, Merck is not pointing to an actual FDA action or decision to be reviewed (i.e., an
    actual rejection by the FDA of an attempt to add the warning at issue to the label by the
    manufacturer). Instead, the decision maker is being asked to extrapolate from other evidence
    whether it is clear what the FDA’s action or decision would have been if Merck had
    attempted to change Januvia’s label through the CBE regulation to add the warning that the
    plaintiffs allege was necessary. The decision maker is being asked to ascertain the
    substantive answer to this question. Doing so requires the decision maker—whether judge or
    jury, normally has no expertise in the substantive subject matter—to discern from the totality
    of evidence presented by the parties whether it is clear what the FDA’s substantive action
    would have been in the first instance. The substance of the FDA’s decision is what matters,
    not the FDA’s compliance with the law in reaching that decision. Thus, we perceive these
    inquiries to be different and believe that the Wyeth inquiry presents a question for the jury in
    this case.
    ¶ 61       Merck next argues that, assuming the “clear evidence” inquiry involves both legal and
    factual elements, the trial judge should nevertheless make those factual determinations as a
    matter of institutional competence, as judges have training in interpreting statutes,
    regulations, and other legal texts, as well as in assessing agency action in light those statutes
    and regulations. It further argues that consistent application of the “clear evidence” standard
    is crucial in pharmaceutical product liability litigation, and judges are more likely than juries
    to apply the standard consistently from case to case.
    ¶ 62       Merck relies principally on the case of Markman v. Westview Instruments, Inc., 
    517 U.S. 370
    , 372 (1996), in which the Supreme Court held that the construction of patent claims (the
    portion of the patent document that defines the scope of the patentee’s rights) is an issue to
    be resolved by a judge rather than by a jury. The question at issue in that case was whether
    assigning the resolution of that issue to the trial judge infringed upon the seventh amendment
    right to trial by jury, and the Supreme Court noted that “history and precedent provide no
    clear answers” to this question. 
    Id. at 388.
    The Court thus looked to “functional
    considerations” and an evaluation of whether “ ‘as a matter of the sound administration of
    justice, one judicial actor is better positioned than another to decide the issue in question.’ ”
    
    Id. (quoting Miller
    v. Fenton, 
    474 U.S. 104
    , 114 (1985)). The Supreme Court recognized that
    the construction of written instruments was a task judges often perform, and judges were
    likely to perform this task better than untrained jurors. 
    Id. It further
    recognized the
    importance of uniformity in the treatment of a given patent as a reason to allocate issues of
    construction to the judge. 
    Id. at 390.
    Thus, it held that the responsibility for resolving the
    issue should rest with the judge, not with the jury. 
    Id. at 391.
    ¶ 63       The argument made here by Merck was rejected by the Third Circuit in 
    Fosamax, 852 F.3d at 291-92
    . It noted that the “clear evidence” test was not one asking a jury to supply a
    plenary construction of the CBE regulation or of some other written instrument. 
    Id. at 292.
           Rather, the clear evidence test asks the jury to apply the requirements of that regulation to the
    evidence in the case, to predict how the FDA probably would have responded if the
    defendant had attempted to change its label. 
    Id. The Third
    Circuit stated that the operative
    language of the CBE regulation—” ‘reasonable evidence of a causal association’ ”—is
    “neither uncommon nor abstruse,” and it “requires law-to-fact applications of the sort that
    - 20 -
    courts routinely give to juries in tort cases.” 
    Id. “It combines
    two classic jury questions:
    (1) whether a causal link between two events is too attenuated, and (2) whether the evidence
    meets a certain proof threshold.” 
    Id. “These determinations
    are well within the province of a
    properly instructed jury, and we do not think that their inclusion in the larger Wyeth inquiry
    merits reallocation of the factfinding function.” 
    Id. As discussed
    above, we agree with the
    Third Circuit’s analysis on this point.
    ¶ 64       Finally, Merck argues that it is not unusual for courts addressing a primarily legal issue to
    make “preliminary” or “subsidiary” factual determinations to do so. It gives the example that
    judges will determine facts to assess whether personal jurisdiction exists (see Madison
    Miracle Productions, LLC v. MGM Distribution Co., 
    2012 IL App (1st) 112334
    , ¶ 35) or as
    part of a choice-of-law analysis (see Townsend v. Sears, Roebuck & Co., 
    227 Ill. 2d 147
    , 154
    (2007)). For the reasons discussed above, we believe the nature of the fact-finding called for
    under the Wyeth inquiry as the parties presented it to the trial court goes far beyond the kind
    of preliminary fact-finding that a judge performs in resolving personal jurisdiction and
    choice-of-law disputes. It requires much more extensive and substantive fact-finding
    appropriately decided after a full trial, and thus the jury should be the appropriate fact-finder.
    We thus reject Merck’s arguments that reasons of judicial competence or the need for
    uniformity provide a basis for holding that the judge should make the factual determinations
    involved in the Wyeth inquiry.
    ¶ 65                                       CONCLUSION
    ¶ 66       For the foregoing reasons, our answer to the certified question is that a jury should
    resolve the issue of whether a defendant drug manufacturer has presented “clear evidence”
    that the FDA would not have permitted the manufacturer to include in a drug’s labeling the
    warning alleged to be necessary by the plaintiffs.
    ¶ 67      Certified question answered.
    - 21 -
    

Document Info

Docket Number: 1-17-19691-17-1970 cons.

Citation Numbers: 2019 IL App (1st) 171969

Filed Date: 5/16/2019

Precedential Status: Precedential

Modified Date: 5/16/2019

Authorities (23)

the-bank-of-america-wells-fargo-bank-na-california-bankers-association , 309 F.3d 551 ( 2002 )

PLIVA, Inc. v. Mensing , 131 S. Ct. 2567 ( 2011 )

City of Chicago v. Comcast Cable Holdings, L.L.C. , 231 Ill. 2d 399 ( 2008 )

Miller v. Fenton , 106 S. Ct. 445 ( 1985 )

MARKMAN Et Al. v. WESTVIEW INSTRUMENTS, INC., Et Al. , 116 S. Ct. 1384 ( 1996 )

Dobbs v. Wyeth Pharmaceuticals , 797 F. Supp. 2d 1264 ( 2011 )

Clinton D. Brown v. Earthboard Sports Usa, Inc. Hugh ... , 481 F.3d 901 ( 2007 )

Baumgartner v. United States , 64 S. Ct. 1240 ( 1944 )

Gaeta v. Perrigo Pharmaceuticals Co. , 630 F.3d 1225 ( 2011 )

Mason v. SmithKline Beecham Corp. , 70 A.L.R. Fed. 2d 715 ( 2010 )

United States v. Gaudin , 115 S. Ct. 2310 ( 1995 )

Forst v. SmithKline Beecham Corp. , 639 F. Supp. 2d 948 ( 2009 )

Dorsett v. Sandoz, Inc. , 699 F. Supp. 2d 1142 ( 2010 )

Lofton v. McNeil Consumer & Specialty Pharmaceuticals , 682 F. Supp. 2d 662 ( 2010 )

Lee v. Chicago Transit Authority , 152 Ill. 2d 432 ( 1992 )

Carter v. SSC Odin Operating Co., LLC , 237 Ill. 2d 30 ( 2010 )

Kinkel v. Cingular Wireless, LLC , 223 Ill. 2d 1 ( 2006 )

Greer v. Illinois Housing Development Authority , 122 Ill. 2d 462 ( 1988 )

De Bouse v. Bayer AG , 235 Ill. 2d 544 ( 2009 )

Townsend v. Sears, Roebuck and Co. , 227 Ill. 2d 147 ( 2007 )

View All Authorities »