COMBS v. BAYER AG

CourtCourt of Civil Appeals of Oklahoma
DecidedMay 11, 2026
Docket123431
StatusPublished

This text of COMBS v. BAYER AG (COMBS v. BAYER AG) is published on Counsel Stack Legal Research, covering Court of Civil Appeals of Oklahoma primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
COMBS v. BAYER AG, (Okla. Ct. App. 2026).

Opinion

OSCN Found Document:COMBS v. BAYER AG et al.

COMBS v. BAYER AG et al.
2026 OK CIV APP 17
Case Number: 123431
Decided: 05/11/2026
Mandate Issued: 06/11/2026
COURT OF CIVIL APPEALS OF THE STATE OF OKLAHOMA, DIVISION II


Cite as: 2026 OK CIV APP 17, __ P.3d __


GINGER CASPER COMBS, Plaintiff/Appellant,
vs.
BAYER AG; BAYER CORPORATION a/k/a BAYER USA; BAYER HEALTH-CARE PHARMACEUTICALS, INC., Defendants/Appellees,
and
ROBERT W. LEVERIDGE; COMMUNITY HOSPITAL, LLC; BRETT NELSON, MD; and MCKESSON SPECIALTY DISTRIBUTION LLC, Defendant.

APPEAL FROM THE DISTRICT COURT OF
OKLAHOMA COUNTY, OKLAHOMA

HONORABLE C. BRENT DISHMAN, TRIAL JUDGE
 

AFFIRMED


C. William Threlkeld, FENTON, FENTON, SMITH, RENEAU & MOON. Oklahoma City, Oklahoma For Plaintiff/Appellant

Michael Burrage, WHITTEN BURRAGE, Oklahoma City, Oklahoma For Defendant/Appellee Bayer Healthcare Pharmaceuticals, Inc.

And

Jennifer Greenblatt, Edward Dumoulin, GOLDMAN ISMAIL TOMASELLI BRENNEN & BAUM, LLP, Chicago, Illinois, Pro Hac Vice Bayer Healthcare Pharmaceuticals, Inc.


STACIE L. HIXON, CHIEF JUDGE:

¶1 Plaintiff Ginger Casper Combs (Combs) appeals summary judgment in favor Defendant Bayer HealthCare Pharmaceuticals Inc. on her claims for strict liability failure to warn and defective design or manufacture; negligence; various claims of fraud or negligent misrepresentation; and negligent training or education, all arising from production and/or distribution of "Magnevist." Magnevist is an FDA-approved contrast agent. Combs received an injection of Magnevist in 2016 to undergo magnetic resonance imaging (MRI). The crux of her claim is that Magnevist is made from gadolinium, which can be retained in the body after injection. She asserts that retention of this substance in the body causes a condition known as Gadolinium Deposition Disease (GDD), and that her injection caused a wide variety of serious and prolonged symptoms or reactions. She asserts that Bayer failed to adequately warn of this danger.

¶2 On summary judgment, Bayer asserted that Combs' state law failure to warn claims are preempted by federal law, because it was impossible for it to comply with state law, if it could not have unilaterally changed its approved warning label under federal regulations during the relevant time. Bayer also asserted it was entitled to summary judgment because Combs could not rebut a statutory presumption of non-liability for products subject to premarket approval by the federal government, 76 O.S.2021, § 57.2

¶3 The appeal was assigned to the accelerated docket pursuant to Oklahoma Supreme Court Rule 1.36, 12 O.S. 2021, ch.15, app.1, without further briefing. On review of the record on appeal, we affirm the trial court's judgment.

BACKGROUND

¶4 Combs was involved in a motor vehicle accident in 2015 and alleges she sustained a neck injury. As part of her care, she was injected with Magnevist for an MRI on March 24, 2016. Combs alleges that she suffered an allergic reaction to Magnevist and continued to suffer from systemic allergic responses thereafter. She has described these reactions to include hives, rashes, burning sensations, loss of control of autonomic functions, significant injury to her vision, migraines, muscle pain, swelling, rapid heart rate, wheezing, shortness of breath and high blood pressure. Combs also contends that she later began experiencing hypersensitivity to environmental factors such as metals, electronic appliances, petroleum products, synthetics, dyes, cooking fumes, and light; developed scale-like lesions; experienced reduced kidney and liver function, fibrosis, and severe weight and hair loss, all of which she relates to her injection with Magnevist.

¶5 Combs initially brought this action in 2017 against the driver in the motor vehicle accident, as well as her physician and hospital for negligence associated with this allergic reaction. Combs added products liability and negligence claims against Bayer in 2018 as the manufacturer of Magnevist.

¶6 Gadolinium is a heavy metal found in Magnevist and other Food and Drug Administration (FDA)-approved gadolinium-based contrast agents (GBCAs). It is undisputed that gadolinium can or does remain in the body after use. At the time of Combs' injection, FDA-approved warnings for Magnevist and other similar products warned that this retention posed a risk to patients with kidney disease of developing a condition known as nephrogenic systemic fibrosis (NSF).

¶7 Bayer moved for summary judgment on each of Combs' claims. Among other arguments, Bayer asserted Combs' claims were preempted by federal law. It contended it was impossible to comply with both state and federal law because federal law would not have allowed it to unilaterally modify its warning label after FDA approval under the facts of this case. To do so, Bayer contended it would have needed reasonable evidence of a causal association between Magnevist and clinically significant adverse health consequences, i.e., death or serious injury. Bayer contended no such evidence existed in March 2016. In response, Combs essentially asserted that Bayer knew and/or evidence existed before March 2016 that gadolinium was retained in the body and that this evidence was sufficient evidence of a serious risk of harm to compel Bayer to unilaterally issue new warnings for Magnevist, meaning that her claims were not preempted.

¶8 Combs appeals.

STANDARD OF REVIEW

¶9 Although a trial court deciding whether summary judgment is appropriate considers factual matters, "the ultimate decision turns on purely legal determinations, i.e. whether one party is entitled to judgment as a matter of law because there are no material disputed factual questions." Carmichael v. Beller, 1996 OK 48914 P.2d 1051Id. The Court will "examine the pleadings and evidentiary materials to determine if there is a genuine issue of material facts." Id. All inferences and conclusions to be drawn therefrom are viewed in the light most favorable to the nonmoving party. Id

ANALYSIS

¶10 Combs asserts four errors of the trial court on appeal: (1) the court's finding that Plaintiff's failure to warn claim was preempted by federal law; 76 O.S.2021, § 57.2

1. The material facts

¶11 Before addressing the applicable law, the Court is compelled to address Combs' attempts to dispute Bayers' proposed material facts and Combs' proposed additional material facts precluding summary judgment.

¶12 To follow Combs' version of "material facts," Bayer knew of significant adverse consequences of gadolinium deposition in patients of normal renal function before she was injected with Magnevist in 2016. However, according to Combs, rather than revise its label, Bayer supposedly engaged in litigation-style tactics to influence the FDA, hide the adverse consequences and avoid updating its warnings. Supposedly, a witness for Bayer testified that this conduct was motivated by financial interest and without regard to consumer safety.

¶13 Combs submitted 35 exhibits in response to the summary judgment motion, filed entirely under seal, along with her response.

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Bluebook (online)
COMBS v. BAYER AG, Counsel Stack Legal Research, https://law.counselstack.com/opinion/combs-v-bayer-ag-oklacivapp-2026.