by Paul D. Rubin, Melissa Runsten, Jacob Stahl, and Abby Draper

From left to proper: Paul D. Rubin, Melissa Runsten, Jacob Stahl, and Abby Draper (images courtesy of Debevoise & Plimpton LLP)
The previous yr has been one in all unprecedented change on the Meals and Drug Administration (“FDA” or “Company”), together with intensive turnover in senior management, important staffing reductions, and divergence from among the Company’s conventional insurance policies. Final yr, for instance, FDA started requiring many vaccine producers to run placebo-controlled trials – a departure from prior follow that would restrict the event and approval occasions of vaccines. Extra not too long ago, FDA introduced it could not file or evaluate Moderna’s mRNA-based flu vaccine resulting from alleged considerations about scientific trial protocols – however then abruptly reversed course. On account of these developments, FDA-regulated firms are more and more adversely impacted by FDA choices (e.g., rulemaking, steering, or utility denial) and FDA inaction (e.g., lacking statutory deadlines for rulemaking or utility choices). Firms going through these conditions have a number of choices accessible to them, which can embody pursuing inside administrative cures, lobbying the FDA to behave or chorus from performing, or taking authorized motion. This text focuses on litigating towards the Company, outlining the routes an FDA-regulated firm can pursue when suing the Company and offering an outline of things to contemplate earlier than deciding if a lawsuit is in an organization’s strategic curiosity.
Choices by the FDA, together with rulemaking and choices on purposes, are continuously challenged in court docket for a variety of causes.
First, FDA actions could be challenged on the premise they’re arbitrary and capricious or that the Company exceeded its statutory authority. The Supreme Court docket’s 2024 opinion in Loper Vibrant Enterprises v. Raimondo (Loper Vibrant)[1] has created new alternatives to carry such challenges.[2] Loper Vibrant overruled the Supreme Court docket’s Chevron doctrine, which offered a two-step evaluation for courts to make use of in assessing whether or not an company’s conduct was justified beneath its statutory authority. If a statute was unambiguous, the court docket would make use of conventional canons of statutory interpretation. If the statute was ambiguous, nevertheless, the court docket would defer to the company’s “permissible development of the statute” (even when the court docket may need interpreted it in another way by itself). Previous to its abolition, FDA continuously relied on Chevron deference when its actions have been challenged.
On account of Loper Vibrant, when reviewing an FDA motion to find out if the Company acted inside its statutory authority, a court docket will now decide the scope of that authority based mostly on the court docket’s personal interpretation of the statute. Accordingly, all else equal, it’s now simpler to problem FDA’s actions as a result of courts will not defer to the FDA’s interpretation of a disputed statute. That mentioned, the FDA’s interpretation of a disputed statute should matter in sure circumstances. The Loper Vibrant opinion famous that courts could also be extra deferential to an company’s statutory interpretation, together with the place: (i) the interpretation was developed across the time that the statute was enacted and has remained constant over time; (ii) it was based mostly on factual determinations throughout the company’s experience; and (iii) Congress gave the company categorical authority, comparable to instructing an company to provide which means to a specific statutory time period or granting versatile authority by statute.[3] As a sensible matter, courts usually tend to be influenced by FDA’s statutory interpretation whether it is well-reasoned and rooted within the FDA’s distinctive technical experience. In contrast, if a court docket views FDA’s place as being motivated by political values reasonably than technical issues, it could be extra more likely to deal with FDA like an bizarre litigant.
Second, Supreme Court docket opinions concerning the “main questions doctrine” can also facilitate lawsuits towards the FDA in sure circumstances. The Supreme Court docket has held that an company might solely situation a regulation that addresses a “main query” – a matter of main political or financial significance – if the company has acquired categorical Congressional authority to take action.[4] Absent such categorical authority, the company motion is invalid. Though the Supreme Court docket has solely been utilizing the time period “main questions doctrine” in recent times, the doctrine is rooted in a seminal FDA Supreme Court docket determination. Particularly, in 2000, in FDA v. Brown & Williamson, the Supreme Court docket rejected FDA’s makes an attempt to control cigarettes as medical gadgets beneath the federal Meals, Drug, and Beauty Act (“FDCA”) because the statute existed at the moment.[5] The Court docket reasoned that given the financial and political significance of tobacco regulation, Congress would have explicitly granted the FDA such authority if it had meant the company to control tobacco.[6] Ought to the FDA situation rules on groundbreaking, politically delicate issues or on points with important financial penalties, the Company could also be topic to problem beneath the foremost questions doctrine.
Third, actions by FDA or every other company could be topic to problem based mostly on defects in an company’s decision-making course of. Company rulemaking, for instance, could also be topic to problem on the premise that the company did not comply with relevant discover and remark procedures specified by the Administrative Process Act (“APA”). An company motion (together with determination on an utility) can also be challenged if (amongst different issues), it rests on inaccurate factual determinations, the company failed to contemplate related proof, the company misapplied the regulation, or the company failed to contemplate the extent to which stakeholders have been counting on the present regulatory regime.[7]
It bears emphasis that any celebration—together with opponents and advocacy teams whose pursuits might battle—might problem FDA actions or inaction. Supreme Court docket choices that make it simpler to problem the FDA might equally facilitate hostile litigation methods, doubtlessly resulting in a destabilized regulatory atmosphere the place company approvals or rules are topic to problem and invalidation. Lately, for instance, activist teams have filed lawsuits difficult FDA approvals of sure medication to be used in abortions and vaccines. Firms ought to periodically assess whether or not approvals or rules upon which they rely are doubtlessly weak to authorized problem and develop contingency methods accordingly.
FDA-regulated firms can also search judicial aid within the occasion of company inaction, together with the place the Company has did not situation rules or act on an utility by a mandated deadline. The APA offers that courts might “compel company motion unlawfully withheld or unreasonably delayed.”[8] Courts, nevertheless, are typically reticent to compel company motion and can train this authority solely beneath a slender set of circumstances. As a threshold matter, a petitioner should show that “the company did not take a discrete company motion that it’s required to take”[9] and persuade the court docket that it ought to “train [its] equitable powers to implement the [missed] deadline.”[10]
Generally, a petitioner will likely be profitable if it might show that it has been prejudiced by an unwarranted company delay of great period. For instance, an innovator pharmaceutical firm efficiently sued the FDA after the company despatched it a “full response letter” stating that it could not approve a supplemental New Drug Utility and subsequently despatched a discover of alternative for a listening to, however then did not schedule the listening to. A federal district court docket ordered FDA to schedule the listening to, explaining that the delay was brought on by the Company’s personal “staffing, useful resource, and procedural selections,” reasonably than actual constraints.[11] In contrast, courts will reject petitions to compel company motion the place the petitioner is performing based mostly on improper strategic motivations, e.g., to ‘soar the road’ over opponents, or the place there was not a sufficiently ‘clear violation[] of a transparent responsibility to behave’ to warrant judicial intervention.[12]
In very restricted circumstances, an FDA-regulated firm might file a lawsuit looking for to compel FDA to provoke enforcement towards one other firm. Firms, nevertheless, should overcome a significant obstacle: the Supreme Court docket’s holding in Heckler v. Chaney that FDA choices to not take enforcement motion are presumptively unreviewable by courts.[13] To compel company enforcement, a petitioner must present that the company’s failure to behave was not a matter of discretion however was objectively illegal. That would happen if, for instance, an company categorically refused to implement a specific regulation, thereby making a de facto annulment of that regulation, or if an company selectively enforced a regulation towards firms with sure political or non secular viewpoints. In 2019, for instance, a federal district court docket dominated that FDA had acted unlawfully by refusing to topic sure e-cigarettes to the premarket evaluate required for “new tobacco merchandise” beneath the Tobacco Management Act. The court docket held the FDA’s non-enforcement place was “akin to an across-the-board assertion that nobody will likely be indicted for a sure crime for a time period,” that “the FDA’s motion can not fall inside its enforcement discretion,” and finally required the FDA to undertake new steering.[14]
When an FDA-regulated firm weighs litigation towards the FDA to realize a regulatory consequence, it ought to first fastidiously assess whether or not it might make a compelling case that FDA has engaged in illegal conduct or did not fulfill a transparent authorized obligation. Even with a robust case, the corporate should additionally assess whether or not litigation is in its broader strategic curiosity. On the one hand, submitting a lawsuit is usually the one remaining possibility and could be the one option to reverse the Company’s place or determination. Submitting a lawsuit can also be typically an efficient option to create leverage for a positive decision with the Company. Then again, firms that persistently work together with FDA are continuously involved about negatively impacting the long-term relationship with the Company (regardless that the submitting of a lawsuit is a protected proper and regulatory businesses are suggested to not search retaliation).[15] As well as, in circumstances the place an organization seeks to compel FDA to behave, there’s a threat that the compelled motion will result in an hostile consequence, e.g., as soon as compelled to behave on an utility, FDA denies it. For that purpose, it’s advisable to seek the advice of with extremely skilled FDA practitioners to weigh the professionals and cons of litigation earlier than deciding whether or not it’s prudent to start authorized motion.
[1] Loper Vibrant Enters. v. Raimondo, 603 U.S. 369 (2024).
[2] Maura Monaghan, Paul D. Rubin, and Jacob Stahl, After Chevron: FDA Rules In The Crosshairs, Law360, (July 8, 2024) https://www.law360.com/articles/1855819/after-chevron-fda-regulations-in-the-crosshairs.
[3] Loper Vibrant Enters., 603 U.S. at 386, 394-95, 402 (2024).
[4] W. Virginia v. Env’t Prot. Company, 597 U.S. 697, 732 (2022).
[5] Meals & Drug Admin. v. Brown & Williamson Tobacco Corp., 529 U.S. 120 (2000).
[6] In 2009, Congress enacted the Tobacco Management Act, which expressly approved FDA to control tobacco.
[7] See e.g. Cigar Ass’n of Am. v. United States Meals & Drug Admin., 132 F.4th 535 (D.C. Cir. 2025) (affirming district court docket’s vacatur of a last rule which subjected all cigars to regulation with out exception for premium cigars, as arbitrary and capricious as a result of “FDA’s rationale was factually incorrect” and it failed to contemplate related proof).
[8] 5 U.S.C § 706(1).
[9] Norton v. S. Utah Wilderness All., 542 U.S. 55, 65 (2004).
[10] In re Barr Lab’ys, Inc., 930 F.2nd 72 (D.C. Cir. 1991).
[11] Vanda Pharms., Inc. v. United States Meals & Drug Admin., No. 1:22-CV-2775 (D.D.C 2024).
[12] See e.g. Telecommunications Rsch. & Motion Ctr. v. F.C.C., 750 F.2nd 70 (D.C. Cir. 1984); In re Bluewater Community, 234 F.3d 1305, 1315 (D.C. Cir. 2000).
[13] Heckler v. Chaney, 470 U.S. 821, 832 (1985)
[14] Am. Acad. of Pediatrics v. Meals & Drug Admin., 379 F. Supp. 3d 461, 494, 498 (D. Md. 2019)
[15] See Meals and Drug Administration, Non-Retaliation Coverage, https://www.fda.gov/about-fda/office-chief-scientist/non-retaliation-policy, March 27, 2018.
Paul D. Rubin is a Accomplice, Melissa Runsten and Jacob Stahl are Counsel, and Abby Draper is an Affiliate at Debevoise & Plimpton LLP.
The views, opinions and positions expressed inside all posts are these of the writer(s) alone and don’t signify these of the Program on Company Compliance and Enforcement (PCCE) or of the New York College Faculty of Regulation. PCCE makes no representations as to the accuracy, completeness and validity or any statements made on this web site and won’t be liable any errors, omissions or representations. The copyright of this content material belongs to the writer(s) and any legal responsibility almost about infringement of mental property rights stays with the writer(s).
by Paul D. Rubin, Melissa Runsten, Jacob Stahl, and Abby Draper

From left to proper: Paul D. Rubin, Melissa Runsten, Jacob Stahl, and Abby Draper (images courtesy of Debevoise & Plimpton LLP)
The previous yr has been one in all unprecedented change on the Meals and Drug Administration (“FDA” or “Company”), together with intensive turnover in senior management, important staffing reductions, and divergence from among the Company’s conventional insurance policies. Final yr, for instance, FDA started requiring many vaccine producers to run placebo-controlled trials – a departure from prior follow that would restrict the event and approval occasions of vaccines. Extra not too long ago, FDA introduced it could not file or evaluate Moderna’s mRNA-based flu vaccine resulting from alleged considerations about scientific trial protocols – however then abruptly reversed course. On account of these developments, FDA-regulated firms are more and more adversely impacted by FDA choices (e.g., rulemaking, steering, or utility denial) and FDA inaction (e.g., lacking statutory deadlines for rulemaking or utility choices). Firms going through these conditions have a number of choices accessible to them, which can embody pursuing inside administrative cures, lobbying the FDA to behave or chorus from performing, or taking authorized motion. This text focuses on litigating towards the Company, outlining the routes an FDA-regulated firm can pursue when suing the Company and offering an outline of things to contemplate earlier than deciding if a lawsuit is in an organization’s strategic curiosity.
Choices by the FDA, together with rulemaking and choices on purposes, are continuously challenged in court docket for a variety of causes.
First, FDA actions could be challenged on the premise they’re arbitrary and capricious or that the Company exceeded its statutory authority. The Supreme Court docket’s 2024 opinion in Loper Vibrant Enterprises v. Raimondo (Loper Vibrant)[1] has created new alternatives to carry such challenges.[2] Loper Vibrant overruled the Supreme Court docket’s Chevron doctrine, which offered a two-step evaluation for courts to make use of in assessing whether or not an company’s conduct was justified beneath its statutory authority. If a statute was unambiguous, the court docket would make use of conventional canons of statutory interpretation. If the statute was ambiguous, nevertheless, the court docket would defer to the company’s “permissible development of the statute” (even when the court docket may need interpreted it in another way by itself). Previous to its abolition, FDA continuously relied on Chevron deference when its actions have been challenged.
On account of Loper Vibrant, when reviewing an FDA motion to find out if the Company acted inside its statutory authority, a court docket will now decide the scope of that authority based mostly on the court docket’s personal interpretation of the statute. Accordingly, all else equal, it’s now simpler to problem FDA’s actions as a result of courts will not defer to the FDA’s interpretation of a disputed statute. That mentioned, the FDA’s interpretation of a disputed statute should matter in sure circumstances. The Loper Vibrant opinion famous that courts could also be extra deferential to an company’s statutory interpretation, together with the place: (i) the interpretation was developed across the time that the statute was enacted and has remained constant over time; (ii) it was based mostly on factual determinations throughout the company’s experience; and (iii) Congress gave the company categorical authority, comparable to instructing an company to provide which means to a specific statutory time period or granting versatile authority by statute.[3] As a sensible matter, courts usually tend to be influenced by FDA’s statutory interpretation whether it is well-reasoned and rooted within the FDA’s distinctive technical experience. In contrast, if a court docket views FDA’s place as being motivated by political values reasonably than technical issues, it could be extra more likely to deal with FDA like an bizarre litigant.
Second, Supreme Court docket opinions concerning the “main questions doctrine” can also facilitate lawsuits towards the FDA in sure circumstances. The Supreme Court docket has held that an company might solely situation a regulation that addresses a “main query” – a matter of main political or financial significance – if the company has acquired categorical Congressional authority to take action.[4] Absent such categorical authority, the company motion is invalid. Though the Supreme Court docket has solely been utilizing the time period “main questions doctrine” in recent times, the doctrine is rooted in a seminal FDA Supreme Court docket determination. Particularly, in 2000, in FDA v. Brown & Williamson, the Supreme Court docket rejected FDA’s makes an attempt to control cigarettes as medical gadgets beneath the federal Meals, Drug, and Beauty Act (“FDCA”) because the statute existed at the moment.[5] The Court docket reasoned that given the financial and political significance of tobacco regulation, Congress would have explicitly granted the FDA such authority if it had meant the company to control tobacco.[6] Ought to the FDA situation rules on groundbreaking, politically delicate issues or on points with important financial penalties, the Company could also be topic to problem beneath the foremost questions doctrine.
Third, actions by FDA or every other company could be topic to problem based mostly on defects in an company’s decision-making course of. Company rulemaking, for instance, could also be topic to problem on the premise that the company did not comply with relevant discover and remark procedures specified by the Administrative Process Act (“APA”). An company motion (together with determination on an utility) can also be challenged if (amongst different issues), it rests on inaccurate factual determinations, the company failed to contemplate related proof, the company misapplied the regulation, or the company failed to contemplate the extent to which stakeholders have been counting on the present regulatory regime.[7]
It bears emphasis that any celebration—together with opponents and advocacy teams whose pursuits might battle—might problem FDA actions or inaction. Supreme Court docket choices that make it simpler to problem the FDA might equally facilitate hostile litigation methods, doubtlessly resulting in a destabilized regulatory atmosphere the place company approvals or rules are topic to problem and invalidation. Lately, for instance, activist teams have filed lawsuits difficult FDA approvals of sure medication to be used in abortions and vaccines. Firms ought to periodically assess whether or not approvals or rules upon which they rely are doubtlessly weak to authorized problem and develop contingency methods accordingly.
FDA-regulated firms can also search judicial aid within the occasion of company inaction, together with the place the Company has did not situation rules or act on an utility by a mandated deadline. The APA offers that courts might “compel company motion unlawfully withheld or unreasonably delayed.”[8] Courts, nevertheless, are typically reticent to compel company motion and can train this authority solely beneath a slender set of circumstances. As a threshold matter, a petitioner should show that “the company did not take a discrete company motion that it’s required to take”[9] and persuade the court docket that it ought to “train [its] equitable powers to implement the [missed] deadline.”[10]
Generally, a petitioner will likely be profitable if it might show that it has been prejudiced by an unwarranted company delay of great period. For instance, an innovator pharmaceutical firm efficiently sued the FDA after the company despatched it a “full response letter” stating that it could not approve a supplemental New Drug Utility and subsequently despatched a discover of alternative for a listening to, however then did not schedule the listening to. A federal district court docket ordered FDA to schedule the listening to, explaining that the delay was brought on by the Company’s personal “staffing, useful resource, and procedural selections,” reasonably than actual constraints.[11] In contrast, courts will reject petitions to compel company motion the place the petitioner is performing based mostly on improper strategic motivations, e.g., to ‘soar the road’ over opponents, or the place there was not a sufficiently ‘clear violation[] of a transparent responsibility to behave’ to warrant judicial intervention.[12]
In very restricted circumstances, an FDA-regulated firm might file a lawsuit looking for to compel FDA to provoke enforcement towards one other firm. Firms, nevertheless, should overcome a significant obstacle: the Supreme Court docket’s holding in Heckler v. Chaney that FDA choices to not take enforcement motion are presumptively unreviewable by courts.[13] To compel company enforcement, a petitioner must present that the company’s failure to behave was not a matter of discretion however was objectively illegal. That would happen if, for instance, an company categorically refused to implement a specific regulation, thereby making a de facto annulment of that regulation, or if an company selectively enforced a regulation towards firms with sure political or non secular viewpoints. In 2019, for instance, a federal district court docket dominated that FDA had acted unlawfully by refusing to topic sure e-cigarettes to the premarket evaluate required for “new tobacco merchandise” beneath the Tobacco Management Act. The court docket held the FDA’s non-enforcement place was “akin to an across-the-board assertion that nobody will likely be indicted for a sure crime for a time period,” that “the FDA’s motion can not fall inside its enforcement discretion,” and finally required the FDA to undertake new steering.[14]
When an FDA-regulated firm weighs litigation towards the FDA to realize a regulatory consequence, it ought to first fastidiously assess whether or not it might make a compelling case that FDA has engaged in illegal conduct or did not fulfill a transparent authorized obligation. Even with a robust case, the corporate should additionally assess whether or not litigation is in its broader strategic curiosity. On the one hand, submitting a lawsuit is usually the one remaining possibility and could be the one option to reverse the Company’s place or determination. Submitting a lawsuit can also be typically an efficient option to create leverage for a positive decision with the Company. Then again, firms that persistently work together with FDA are continuously involved about negatively impacting the long-term relationship with the Company (regardless that the submitting of a lawsuit is a protected proper and regulatory businesses are suggested to not search retaliation).[15] As well as, in circumstances the place an organization seeks to compel FDA to behave, there’s a threat that the compelled motion will result in an hostile consequence, e.g., as soon as compelled to behave on an utility, FDA denies it. For that purpose, it’s advisable to seek the advice of with extremely skilled FDA practitioners to weigh the professionals and cons of litigation earlier than deciding whether or not it’s prudent to start authorized motion.
[1] Loper Vibrant Enters. v. Raimondo, 603 U.S. 369 (2024).
[2] Maura Monaghan, Paul D. Rubin, and Jacob Stahl, After Chevron: FDA Rules In The Crosshairs, Law360, (July 8, 2024) https://www.law360.com/articles/1855819/after-chevron-fda-regulations-in-the-crosshairs.
[3] Loper Vibrant Enters., 603 U.S. at 386, 394-95, 402 (2024).
[4] W. Virginia v. Env’t Prot. Company, 597 U.S. 697, 732 (2022).
[5] Meals & Drug Admin. v. Brown & Williamson Tobacco Corp., 529 U.S. 120 (2000).
[6] In 2009, Congress enacted the Tobacco Management Act, which expressly approved FDA to control tobacco.
[7] See e.g. Cigar Ass’n of Am. v. United States Meals & Drug Admin., 132 F.4th 535 (D.C. Cir. 2025) (affirming district court docket’s vacatur of a last rule which subjected all cigars to regulation with out exception for premium cigars, as arbitrary and capricious as a result of “FDA’s rationale was factually incorrect” and it failed to contemplate related proof).
[8] 5 U.S.C § 706(1).
[9] Norton v. S. Utah Wilderness All., 542 U.S. 55, 65 (2004).
[10] In re Barr Lab’ys, Inc., 930 F.2nd 72 (D.C. Cir. 1991).
[11] Vanda Pharms., Inc. v. United States Meals & Drug Admin., No. 1:22-CV-2775 (D.D.C 2024).
[12] See e.g. Telecommunications Rsch. & Motion Ctr. v. F.C.C., 750 F.2nd 70 (D.C. Cir. 1984); In re Bluewater Community, 234 F.3d 1305, 1315 (D.C. Cir. 2000).
[13] Heckler v. Chaney, 470 U.S. 821, 832 (1985)
[14] Am. Acad. of Pediatrics v. Meals & Drug Admin., 379 F. Supp. 3d 461, 494, 498 (D. Md. 2019)
[15] See Meals and Drug Administration, Non-Retaliation Coverage, https://www.fda.gov/about-fda/office-chief-scientist/non-retaliation-policy, March 27, 2018.
Paul D. Rubin is a Accomplice, Melissa Runsten and Jacob Stahl are Counsel, and Abby Draper is an Affiliate at Debevoise & Plimpton LLP.
The views, opinions and positions expressed inside all posts are these of the writer(s) alone and don’t signify these of the Program on Company Compliance and Enforcement (PCCE) or of the New York College Faculty of Regulation. PCCE makes no representations as to the accuracy, completeness and validity or any statements made on this web site and won’t be liable any errors, omissions or representations. The copyright of this content material belongs to the writer(s) and any legal responsibility almost about infringement of mental property rights stays with the writer(s).



















