Conklin Et Ux v. Medtronic Inc , 431 P.3d 571 ( 2018 )


Menu:
  •                                        IN THE
    SUPREME COURT OF THE STATE OF ARIZONA
    RAYMOND R. CONKLIN, II, ET AL.,
    Plaintiffs/Appellants,
    v.
    MEDTRONIC, INC., ET AL.,
    Defendants/Appellees.
    No. CV-17-0322-PR
    Filed December 18, 2018
    Appeal from the Superior Court in Maricopa County
    The Honorable Lori Horn Bustamante, Judge
    No. CV2015-002965
    AFFIRMED
    Opinion of the Court of Appeals, Division One
    
    244 Ariz. 139
     (App. 2017)
    VACATED IN PART
    COUNSEL:
    Paul D. Friedman, Jonathan V. O’Steen (argued), O’Steen & Harrison, PLC, Phoenix,
    Attorneys for Raymond R. Conklin, II and Joanne M. Conklin
    Andrew E. Tauber (argued), Kenneth S. Geller, Mayer Brown LLP, Washington, D.C.;
    and E. Jeffrey Walsh, Michael T. Liburdi, Nicole M. Goodwin, Greenberg Traurig LLP,
    Phoenix, Attorneys for Medtronic, Inc., Medtronic PLC, and Medtronic Sofamor Danek
    USA, Inc.
    Stanley G. Feldman, Miller, Pitt, Feldman & McAnally, P.C., Tucson; and David L. Abney,
    Ahwatukee Legal Office, P.C., Phoenix, Attorneys for Amicus Curiae Arizona
    Association of Justice/Arizona Trial Lawyers Association
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    Carlyle (Cary) W. Hall, III, John F. Barwell, Polsinelli PC, Phoenix; and Alan J. Lazarus,
    Drinker Biddle & Reath LLP, San Francisco, CA, Attorneys for Amicus Curiae Product
    Liability Advisory Council, Inc.
    JUSTICE PELANDER authored the opinion of the Court, in which CHIEF JUSTICE
    BALES, VICE CHIEF JUSTICE BRUTINEL, and JUSTICES TIMMER, BOLICK, GOULD,
    and LOPEZ joined.
    JUSTICE PELANDER, opinion of the Court:
    ¶1             The issue here is whether federal law preempts an Arizona common law
    failure-to-warn claim based on a medical device manufacturer’s failure to submit adverse
    event reports to the United States Food and Drug Administration (“FDA”). We hold that
    the claim is impliedly preempted.
    I.
    ¶2            After injuring his hip years ago, Raymond R. Conklin, II experienced
    chronic pain. In 2008, a physician surgically implanted a Medtronic SynchroMed II 40 ml
    infusion pump and catheter (“Pain Pump”) into Conklin to manage pain. Medtronic, Inc.
    and Medtronic Sofamor Danek USA, Inc. (collectively, “Medtronic”) designed,
    manufactured, marketed, and sold the Pain Pump.
    ¶3              Conklin underwent hip surgery in 2013 and in the aftermath suffered
    permanent injury allegedly caused by drug over-infusion from his continued use of the
    Pain Pump. Conklin and his wife sued Medtronic alleging several common law tort
    claims, including both strict liability and negligence claims for failure to provide
    adequate and timely warnings. In those claims Conklin alleged that before his 2013
    injury, the FDA sent warning letters to Medtronic, advising it that the Pain Pump was
    adulterated and misbranded and stating that Medtronic had failed to report adverse
    events to the FDA after the FDA approved the Pain Pump in its pre-market approval
    (“PMA”) process. Conklin also alleged that before his 2013 injury, the FDA issued two
    recalls of the Pain Pump regarding the unintentional injection or cessation of drugs, and
    that after his injury the FDA issued another recall relating to the Pain Pump’s unintended
    delivery of drugs that could result in a drug overdose. Conklin further alleged that
    Medtronic’s failure to report post-PMA adverse events to the FDA in violation of federal
    law gives rise to liability under Arizona common law.
    ¶4          Medtronic moved to dismiss the claims under Arizona Rule of Civil
    Procedure 12(b)(6), arguing that all Conklin’s claims are expressly and impliedly
    preempted under federal law. The superior court agreed and dismissed the action
    2
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    against Medtronic with prejudice.
    ¶5             The court of appeals affirmed in part, upholding on preemption grounds
    the dismissal of Conklin’s product liability and negligence claims based on alleged design
    and manufacturing defects, as well as the claim for breach of express warranty. Conklin
    v. Medtronic, Inc., 
    244 Ariz. 139
    , 142 ¶ 3, 147 ¶ 33 (App. 2017). The court determined that
    those claims were expressly preempted. 
    Id.
     at 144–45 ¶¶ 14–17, 146–47 ¶ 26. But the
    court of appeals vacated the superior court’s dismissal of Conklin’s failure-to-warn claim,
    finding it neither expressly nor impliedly preempted. 
    Id.
     at 145 ¶ 18, 147–48 ¶ 33. In so
    ruling, the court of appeals followed Stengel v. Medtronic Inc., 
    704 F.3d 1224
     (9th Cir. 2013),
    in which the Ninth Circuit found no federal preemption of an Arizona failure-to-warn
    claim like Conklin’s. See Conklin, 244 Ariz. at 145–46 ¶¶ 18–25.
    ¶6             The issue Medtronic presents for our review is whether federal law
    preempts a failure-to-warn claim predicated on a medical device manufacturer’s failure
    to submit adverse event reports to the FDA. We granted review because this legal issue
    is of statewide importance and likely to recur. Our jurisdiction is based on article 6,
    section 5(3) of the Arizona Constitution and A.R.S. § 12-120.24.
    II.
    ¶7            We review a trial court’s dismissal of a complaint under Rule 12(b)(6) de
    novo. Coleman v. City of Mesa, 
    230 Ariz. 352
    , 355 ¶ 7 (2012). Dismissal under that rule is
    appropriate “only if as a matter of law plaintiffs would not be entitled to relief under any
    interpretation of the facts susceptible of proof.” 
    Id.
     at 356 ¶ 8 (internal quotation marks
    and alteration omitted) (quoting Fid. Sec. Life Ins. Co. v. Ariz. Dep’t of Ins., 
    191 Ariz. 222
    ,
    224 ¶ 4 (1998)). We also review de novo issues of law relating to alleged federal
    preemption of state law claims. Hutto v. Francisco, 
    210 Ariz. 88
    , 90 ¶ 7 (App. 2005).
    ¶8            As the court of appeals correctly observed, Medtronic has the burden of
    establishing preemption. Conklin, 244 Ariz. at 143 ¶ 8. In addition, although “federal
    laws are presumed not to preempt state laws, courts do not invoke that presumption
    when the federal statute contains an express preemption clause.” Id.; see also Puerto Rico
    v. Franklin Cal. Tax-Free Trust, 
    136 S. Ct. 1938
    , 1946 (2016); cf. Riegel v. Medtronic, Inc., 
    552 U.S. 312
    , 315–30 (2008) (analyzing federal statute’s express preemption provision without
    invoking a presumption against preemption); Buckman Co. v. Plaintiffs’ Legal Comm., 
    531 U.S. 341
    , 347–48 (2001) (finding “no presumption against pre-emption” when device
    manufacturer’s “dealings with the FDA were prompted” and governed by applicable
    federal law). Medtronic argues that Conklin’s failure-to-warn claim is both expressly and
    impliedly preempted by federal law. Before addressing those assertions, we briefly
    summarize the legal backdrop of Conklin’s claim and Medtronic’s argument.
    3
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    III.
    ¶9            The Federal Food, Drug, and Cosmetic Act (“FDCA”), Pub. L. No. 75-717,
    
    52 Stat. 1040
     (codified as amended at 
    21 U.S.C. §§ 301
    –399i), was enacted in 1938 to
    govern and require FDA approval for introduction of new drugs into the market. Riegel,
    
    552 U.S. at 315
    . Thereafter, states generally were left to supervise the introduction of new
    medical devices. 
    Id.
     That changed in 1976 when Congress enacted the Medical Device
    Amendments (“MDA”), Pub. L. No. 94-295, 
    90 Stat. 539
    , which “swept back some state
    obligations and imposed a regime of detailed federal oversight” for medical devices.
    Riegel, 
    552 U.S. at 316
    .
    ¶10            The MDA’s most rigorous level of oversight, which includes an extensive
    PMA process and review of proposed product labeling, applies to medical devices
    categorized as Class III devices. 
    Id.
     at 317–19; see also 21 U.S.C. §§ 360c, 360e; Buckman,
    
    531 U.S. at 348
     (noting that PMA review “involves a time-consuming inquiry into the
    risks and efficacy of each device”); 
    21 C.F.R. § 814.44
    (a). Medtronic’s Pain Pump is a Class
    III device. The FDA granted PMA for the Pain Pump before the device was surgically
    implanted into Conklin’s body in 2008.
    ¶11           “Once a device has received [PMA], the MDA forbids the manufacturer to
    make, without FDA permission, changes in design specifications, manufacturing
    processes, labeling, or any other attribute, that would affect safety or effectiveness.”
    Riegel, 
    552 U.S. at 319
    ; see also 21 U.S.C. § 360e(d)(5)(A)(i). “If the applicant wishes to
    make such a change, it must submit, and the FDA must approve, an application for
    supplemental [PMA], to be evaluated under largely the same criteria as an initial
    application.” Riegel, 
    552 U.S. at 319
    ; see also 21 U.S.C. § 360e(d)(5); 
    21 C.F.R. § 814.39
    (c).
    ¶12           Even after the FDA grants PMA for a device, the device is “subject to
    reporting requirements.” Riegel, 
    552 U.S. at
    319 (citing 21 U.S.C. § 360i). Those
    requirements include “the obligation to inform the FDA of new clinical investigations or
    scientific studies concerning the device which the applicant knows of or reasonably
    should know of,” id. (citing 
    21 C.F.R. § 814.84
    (b)(2)), “and to report incidents in which the
    device may have caused or contributed to death or serious injury[] or malfunctioned in a
    manner that would likely cause or contribute to death or serious injury if it recurred,” 
    id.
    (citing 
    21 C.F.R. § 803.50
    (a)). The documents to which this latter requirement refers are
    called “adverse event reports.” Conklin’s failure-to-warn claim is based solely on
    Medtronic’s failure to submit reports in compliance with that requirement.
    ¶13             The FDA “has at its disposal a variety of enforcement options that allow it
    to make a measured response” to any product defect or wrongdoing, including “seeking
    injunctive relief, 
    21 U.S.C. § 332
    , and civil penalties, [id.] § 333(f)(1)(A); seizing the device,
    [id.] § 334(a)(2)(D); and pursuing criminal prosecutions, [id.] § 333(a).” See Buckman, 
    531 U.S. at 349
    . In addition, “[t]he FDA has the power to withdraw [PMA] based on newly
    4
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    reported data or existing information and must withdraw [PMA] if it determines that a
    device is unsafe or ineffective under the conditions in its labeling.” Riegel, 
    552 U.S. at
    31920 (citing 21 U.S.C. § 360e(e)(1)). The Medtronic Pain Pump was subject to a recall in
    2011 and 2012, but the FDA has never rescinded the PMA and the device continues to be
    sold.
    IV.
    ¶14           The MDA contains an express preemption provision. As relevant here, that
    provision states:
    [N]o State or political subdivision of a State may establish or continue in
    effect with respect to a device intended for human use any requirement—
    (1) which is different from, or in addition to, any requirement
    applicable under this chapter to the device, and
    (2) which relates to the safety or effectiveness of the device or
    to any other matter included in a requirement applicable to
    the device under this chapter.
    21 U.S.C. § 360k(a); see also 
    21 C.F.R. § 808.1
    (d) (FDA’s implementing regulation for the
    MDA’s express preemption provision).
    ¶15            The United States Supreme Court has interpreted that provision as setting
    forth the following two-part test for determining whether the MDA expressly preempts
    a claim: (1) Has “the Federal Government . . . established requirements applicable to [the
    medical device]”? (2) If so, are the common law claims based on state law requirements
    “with respect to the device that are ‘different from, or in addition to,’ the federal ones,
    and that relate to safety and effectiveness”? Riegel, 
    552 U.S. at
    321–22 (quoting 21 U.S.C.
    § 360k(a)(1)). The first prong is indisputably met here. The PMA process “imposes
    ‘requirements’ under the MDA” because that process “is specific to individual devices.”
    Id. at 322–23. Therefore, Congress has established requirements applicable to the
    Medtronic Pain Pump.
    ¶16           As for the second prong, if the state law requirements “are ‘different from,
    or in addition to’ the requirements imposed by federal law,” then the state law claims are
    expressly preempted. Id. at 330 (quoting 21 U.S.C. § 360k(a)(1)). If not, however, the
    claims are not expressly preempted because § 360k(a) “does not prevent a State from
    providing a damages remedy for claims premised on a violation of FDA regulations; the
    state duties in such a case ‘parallel,’ rather than add to, federal requirements.” Id.
    (quoting Medtronic, Inc. v. Lohr, 
    518 U.S. 470
    , 495 (1996)).
    ¶17          The MDA also impliedly preempts certain state law claims. Specifically,
    5
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    the MDA provides that “all . . . proceedings for the enforcement . . . of this chapter shall
    be by and in the name of the United States.” 
    21 U.S.C. § 337
    (a). The Supreme Court has
    interpreted this provision to mean that “it is the Federal Government rather than private
    litigants who are authorized to file suit for noncompliance with the medical device
    provisions.” Buckman, 
    531 U.S. at
    349 n.4. Thus, state law claims based not on
    “traditional state tort law which . . . predated the federal enactments in question[],” 
    id. at 353
    , but rather solely on noncompliance with the MDA are impliedly preempted
    because “Congress intended that the MDA be enforced exclusively by the Federal
    Government,” 
    id. at 352
    .
    ¶18             Read together, “[t]hese two types of preemption, operating in tandem, have
    created . . . a ‘narrow gap’ for pleadings.” Mink v. Smith & Nephew, Inc., 
    860 F.3d 1319
    ,
    1327 (11th Cir. 2017) (quoting In re Medtronic, Inc., Sprint Fidelis Leads Prods. Liab. Litig.,
    
    623 F.3d 1200
    , 1204 (8th Cir. 2010)). “To make it through, a plaintiff has to sue for conduct
    that violates a federal requirement (avoiding express preemption), but cannot sue only
    because the conduct violate[s] that federal requirement (avoiding implied preemption).”
    
    Id.
     (emphasis added).
    ¶19           Here, the question is whether Conklin’s failure-to-warn claim fits within
    the “narrow gap” so as to avoid express or implied preemption. Medtronic argues that
    it does not and that the claim is both expressly and impliedly preempted. Relying
    primarily on Stengel and the court of appeals’ opinion here, Conklin counters that his
    failure-to-warn claim is not expressly or impliedly preempted because Medtronic’s
    conduct violated Arizona’s “pre-existing state common law of negligence.” According
    to Conklin, that claim is not preempted because a manufacturer is required under federal
    and Arizona law to submit adverse event reports to the FDA.
    ¶20           As noted above, supra ¶ 12, Conklin’s failure-to-warn claim is based solely
    on Medtronic’s alleged failure to submit to the FDA post-PMA adverse event reports
    regarding the Pain Pump. The court of appeals correctly stated that to the extent Conklin
    “allege[s] a violation of any state-law duty to directly warn [him] or his physicians, . . .
    such claims are expressly preempted because those duties would be in addition to
    requirements imposed by federal law.” Conklin, 244 Ariz. at 146 ¶ 24 (citing Stengel, 704
    F.3d at 1234 (Watford, J., concurring)). Conklin concedes that point and thus does not
    base his failure-to-warn claim on any failure by Medtronic to directly warn him or his
    health care providers about the Pain Pump. And to the extent Conklin argues that the
    FDA either has or assumed a duty to convey information from adverse event reports to
    treating physicians, patients, or more broadly public consumers (thereby implicating
    Medtronic for its failure to submit such reports), Conklin’s claim is expressly preempted
    because it likewise would impose under state law a requirement that is “different from,
    or in addition to,” any applicable federal requirement. 21 U.S.C. § 360k(a)(1); see Riegel,
    
    552 U.S. at
    321–30.
    6
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    ¶21            For the reasons stated below, we conclude that, as framed, Conklin’s
    failure-to-warn claim is impliedly preempted under federal law, and therefore we do not
    address whether it is also expressly preempted. See Buckman, 
    531 U.S. at
    348 & n.2
    (holding that “plaintiffs’ state-law fraud-on-the-FDA claims conflict with, and are
    therefore impliedly pre-empted by, federal law,” and thus “express[ing] no view on
    whether these claims are subject to express pre-emption under 21 U.S.C. § 360k”); cf. In
    re Medtronic, Inc., 
    623 F.3d at 1204
     (noting that “[t]he contours of the parallel claim
    exception [to the MDA’s express preemption provision] were not addressed in Riegel and
    are as-yet ill-defined”).
    V.
    ¶22           In our view, the dispositive issue is whether Conklin would have a claim
    under “traditional state tort law” based on Medtronic’s failure to submit adverse event
    reports to the FDA. Buckman, 
    531 U.S. at 352
    . If not—and the claim instead is one only
    for violation of FDA reporting requirements—then it is impliedly preempted because
    only the federal government can seek redress for a violation. 
    Id.
     at 352–53.
    ¶23            For purposes of our analysis, we assume without deciding that adverse
    event reports may constitute relevant “warnings” under Arizona law, as Conklin
    contends and the court of appeals implicitly ruled. But cf. McClain v. Metabolife Int’l, Inc.,
    
    401 F.3d 1233
    , 1250 (11th Cir. 2005) (noting that adverse event reports
    may “reflect complaints called in by product consumers without any medical controls
    or scientific assessment” and describing such “anecdotal information” as “one
    of the least reliable sources” of information); 
    21 C.F.R. § 803.16
    ; Manufacturer and User
    Facility       Device        Experience     Database        -       (MAUDE),           FDA,
    https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/PostmarketRe
    quirements/ReportingAdverseEvents/ucm127891.htm                  [https://perma.cc/E6U4-
    FMKU] (last updated Sept. 11, 2018) (including on FDA’s website a disclaimer that an
    adverse event report “does not necessarily reflect a conclusion by the party submitting
    the report or by [the] FDA that the report or information constitutes an admission
    that the device, or the reporting entity or its employees, caused or contributed
    to the reportable       event”);    Medical     Device     Reporting     (MDR),        FDA,
    https://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm
    [https://perma.cc/98V2-9D38] (last updated Sept. 25, 2018) (stating that although the
    FDA considers reports “a valuable source of information,” it cautions that some reports
    may be based upon “incomplete, inaccurate, . . . unverified, or biased data”).
    ¶24             In Arizona, “[m]anufacturers generally have a duty to warn consumers of
    foreseeable risks of harm from using their products.” Watts v. Medicis Pharm. Corp., 
    239 Ariz. 19
    , 24 ¶ 13 (2016); see also Restatement (Third) of Torts: Prods. Liab. § 2 (Am. Law
    Inst. 1998). This is so whether, as in Watts, the failure-to-warn claim is couched as one of
    strict liability in tort based on an alleged informational defect, see Watts, 239 Ariz. at 23
    7
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    ¶ 10, or instead as a negligence claim, see 2 Dan B. Dobbs, Paul T. Hayden & Ellen M.
    Bublick, The Law of Torts § 464, at 950–51 (2d ed. 2011) (stating “[i]n effect, warning claims
    are negligence claims, as a number of courts recognize” and citing cases in support,
    including Powers v. Taser Int’l, Inc., 
    217 Ariz. 398
     (App. 2007) (footnote omitted)).
    ¶25            In Watts, this Court applied the learned intermediary doctrine (“LID”),
    which recognizes that “a manufacturer satisfies its duty to warn end users by giving
    appropriate warnings to the specialized class of persons who may prescribe or administer
    the product.” 239 Ariz. at 22 ¶ 1. Under those circumstances, the intermediary (often a
    treating physician) “assumes the duty to pass the necessary warnings on to the end
    users.” Id. at 23 ¶ 10 (quoting Centocor, Inc. v. Hamilton, 
    372 S.W.3d 140
    , 154 (Tex. 2012)).
    Watts adopted the Restatement (Third) of Torts provision that sets forth the LID for
    prescription drug and medical device manufacturers. 
    Id.
     at 24 ¶ 14; see Restatement
    (Third) of Torts: Prods. Liab. § 6(d).
    ¶26           Under Arizona law, therefore, a manufacturer may satisfy its “duty to warn
    consumers of foreseeable risks of harm from using their products,” Watts, 239 Ariz. at 24
    ¶ 13, by warning a third party, but the LID does not permit (or require) a manufacturer
    to warn any and all third parties. Rather, the Restatement (Third) of Torts only extends
    the LID, as applied to prescription drug and medical device manufacturers, to
    “prescribing and other health-care providers.” Restatement (Third) of Torts: Prods. Liab.
    § 6(d)(1). The FDA is not a health care provider and does not prescribe anything for
    patients. (Conklin cites no authority for his assertion at oral argument that the FDA
    should nonetheless be deemed a learned intermediary in this context.)
    ¶27           Accordingly, even if we assume that adverse event reports may constitute
    relevant warnings, Arizona law does not permit a manufacturer to satisfy its duty to warn
    end-user consumers by submitting adverse event reports to the FDA. And conversely, a
    manufacturer does not breach its duty to warn end users under Arizona law by failing to
    submit adverse event reports to the FDA. Conklin cites no authority, and we are aware
    of none, for the proposition that Arizona law requires a manufacturer to warn a federal
    agency. Cf. Norabuena v. Medtronic, Inc., 
    86 N.E.3d 1198
    , 1207 (Ill. App. Ct. 2017)
    (“Although Illinois recognizes that a manufacturer may satisfy its duty to warn by
    conveying information to third-party learned intermediaries, this is not synonymous
    with an affirmative duty to warn a federal regulatory body.” (citation omitted)).
    ¶28             By adopting the LID as articulated in the Restatement (Third) of Torts, Watts
    implicitly displaced further reliance on a parallel provision in the Restatement (Second)
    of Torts § 388 (Am. Law Inst. 1965), which the court of appeals has previously applied.
    See, e.g., Dole Food Co. v. N.C. Foam Indus., Inc., 
    188 Ariz. 298
    , 301–05 (App. 1996); Shell Oil
    Co. v. Gutierrez, 
    119 Ariz. 426
    , 432–34 (App. 1978). But even if § 388 applied, it would not
    change the result. First, that section has not been extended to require a manufacturer to
    submit warnings to a governmental regulatory body. Second, a manufacturer like
    8
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    Medtronic cannot have a “reasonable assurance” that the information in adverse event
    reports will reach end users (or end users’ health care providers), see Dole Food, 188 Ariz.
    at 302–03 (quoting Restatement (Second) of Torts § 388 cmt. n), because the FDA is not
    required to publicly release such reports, see 
    21 C.F.R. § 803.9
    (a) (stating that the FDA
    “may disclose to the public any [adverse event] report” (emphasis added)). Third, and
    relatedly, when the FDA exercises its discretion to release adverse event reports publicly,
    it does so only passively by uploading the reports to a database. See MAUDE -
    Manufacturer and User Facility Device Experience, FDA, https://www.accessdata.fda.gov
    /scripts/cdrh/cfdocs/cfMAUDE/search.CFM [https://perma.cc/NRJ2-USCC] (last
    updated Nov. 30, 2018). An end user (or an end user’s health care provider) must then
    affirmatively access the database and search for adverse event reports. See 
    id.
    ¶29           Because only federal law, not state law, imposes a duty on Medtronic to
    submit adverse event reports to the FDA, Conklin’s failure-to-warn claim is impliedly
    preempted under 
    21 U.S.C. § 337
    (a). See Buckman, 
    531 U.S. at 352, 353
     (stating that
    because “Congress intended that the MDA be enforced exclusively by the Federal
    Government,” a state law claim that exists “solely from the violation of [federal]
    requirements” is impliedly preempted). Absent an independent state law duty to submit
    adverse event reports to the FDA, Conklin’s failure-to-warn claim, at bottom, is an
    attempt to enforce a federal law requirement. That claim is impliedly preempted under
    the MDA. Id.; see also Mink, 860 F.3d at 1330 (finding failure-to-warn claim based on
    manufacturer’s failure to submit adverse event reports to the FDA impliedly preempted
    because such “duty is owed to the FDA,” and that liability theory “is not one that state
    tort law has traditionally occupied”); Marsh v. Genentech, Inc., 
    693 F.3d 546
    , 552–54 (6th
    Cir. 2012) (same, stating that the “alleged wrong was perpetrated upon” the FDA and
    applying state’s immunity law to affirm dismissal of claim); In re Medtronic, Inc., 
    623 F.3d at
    1205–06 (same, finding such “claims are simply an attempt by private parties to enforce
    the MDA, claims foreclosed by § 337(a) as construed in Buckman”); cf. Hughes v. Bos. Sci.
    Corp., 
    631 F.3d 762
    , 769, 774–75 (5th Cir. 2011) (“[a]ssuming that a failure to warn claim
    may be pursued” under state law based on manufacturer’s failure to submit adverse
    event reports to the FDA, finding no implied preemption because the claim is based on
    an “underlying” and “recognized state tort claim”).
    VI.
    ¶30          Conklin relies on the court of appeals’ opinion and Stengel to support a
    contrary conclusion. In finding no preemption of Conklin’s failure-to-warn claim, the
    court of appeals embraced Stengel’s “premise that a manufacturer’s continuing duty to
    warn of dangers discovered after sale in Arizona can be satisfied by warning a third party
    such as the FDA.” Conklin, 244 Ariz. at 146 ¶ 22. The court agreed with Stengel that
    “Arizona law contemplates that a warning to the FDA could satisfy Medtronic’s general
    duty of reasonable care to warn,” reasoning that “the FDA, in turn, could have notified
    Mr. Conklin’s doctor, thus discharging Medtronic’s duty.” Id. (citing Watts, 
    239 Ariz. 9
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    at 24 ¶¶ 13–14). Although the court of appeals observed that Conklin’s failure-to-warn
    claim is based on “Medtronic’s violation of the federal duty to report post-PMA adverse
    events to the FDA,” id. ¶ 23, the court determined that the claim “is not impliedly
    preempted” because he is “not suing to enforce the FDCA, but to recover under Arizona
    state law for Medtronic’s alleged failure to warn of dangers discovered after sale,” id.
    ¶ 24.
    ¶31           We disagree with Stengel and consequently with the court of appeals’
    reasoning and conclusion in this case. In Stengel, the Ninth Circuit held that the MDA
    did not expressly or impliedly preempt the plaintiffs’ Arizona common law
    failure-to-warn claim based on Medtronic’s alleged failure to submit adverse event
    reports to the FDA. 704 F.3d at 1226, 1233. That holding, however, was based on the
    unsupported premises that “Arizona law contemplates a warning to a third party such
    as the FDA” and that, “[u]nder Arizona law, a warning to a third party satisfies a
    manufacturer’s duty if, given the nature of the warning and the relationship of the third
    party, there is ‘reasonable assurance that the information will reach those whose safety
    depends on their having it.’” Id. at 1233 (quoting Anguiano v. E.I. DuPont de Nemours &
    Co., 
    808 F. Supp. 719
    , 723 (D. Ariz. 1992)). Neither premise comports with Arizona law.
    Arizona law would recognize a claim for a failure to provide an adequate warning to the
    patient directly or through certain third parties (including health care providers), but
    established law does not recognize a claim merely for failing to provide something like
    adverse event reports (which may not qualify as “warnings” under Arizona law) to a
    government agency that has no obligation to relay the information to the patient.
    ¶32            Because Stengel incorrectly recited and applied Arizona law, we decline to
    follow it. See Andrade v. City of Phoenix, 
    692 F.2d 557
    , 559 (9th Cir. 1982) (“The courts of a
    state alone can define the authoritative meaning of state law.”); Planning Grp. of Scottsdale,
    L.L.C. v. Lake Mathews Mineral Props., Ltd., 
    226 Ariz. 262
    , 267 ¶ 22 (2011) (noting that Ninth
    Circuit decisions “are not binding on this Court”). As discussed above, our case law
    contemplates that a medical device manufacturer may satisfy its duty to warn consumers
    by properly warning a third party, such as a learned intermediary. Watts, 239 Ariz. at 22
    ¶ 1. But the FDA is not a learned intermediary or other relevant third party in that
    analysis. And we are not aware of any case that supports the proposition that a
    manufacturer is independently required under Arizona law to warn a governmental
    regulatory body.
    ¶33            Conklin’s other cited cases are inapposite or unpersuasive. Anguiano (the
    district court case on which Stengel relied) involved a materially distinguishable issue and
    does not support the proposition that Arizona law imposes a duty on a manufacturer to
    warn the FDA or even that a manufacturer may satisfy its duty to warn consumers by
    warning the FDA. 
    808 F. Supp. at
    726–27. Coleman v. Medtronic, Inc. largely hinged on
    Stengel’s reasoning, with which we disagree, that “state law [failure-to-warn] claims
    based on failure to file adverse event reports with the FDA are not subject to preemption.”
    10
    CONKLIN V. MEDTRONIC
    Opinion of the Court
    
    167 Cal. Rptr. 3d 300
    , 311 (Ct. App. 2014). And Fiore v. Collagen Corp. addressed only a
    claim of express preemption under 21 U.S.C. § 360k(a), adopted a minority view
    espoused by the Ninth Circuit, and in any event likely does not survive Riegel. 
    187 Ariz. 400
     (App. 1996).
    VII.
    ¶34           The superior court’s judgment dismissing this action with prejudice is
    affirmed. We vacate paragraphs 1, 18 through 25, and 28 through 31 of the court of
    appeals’ opinion, as well as any other statements relating to Conklin’s failure-to-warn
    claim that are inconsistent with this opinion.
    11