Vanda Announces FDA Grants Landmark Hearing for HETLIOZ® in Jet Lag Disorder, the First Drug Approval Hearing in Over 40 Years

Vanda Pharmaceuticals (Nasdaq: VNDA) announced the FDA granted a formal evidentiary public hearing under 21 CFR Part 12 to review CDER's proposed refusal of the company's sNDA for HETLIOZ® in jet lag disorder.

Rhea-AI Summary

Vanda Pharmaceuticals (Nasdaq: VNDA) announced the FDA granted a formal evidentiary public hearing under 21 CFR Part 12 to review CDER's proposed refusal of the company's sNDA for HETLIOZ® in jet lag disorder.

The FDA letter is dated March 2, 2026; the hearing follows a D.C. Circuit ruling that set aside the agency's earlier refusal in August 2025 and remanded the matter for resolution or hearing.

Positive

• FDA granted formal evidentiary hearing under 21 CFR Part 12
• D.C. Circuit set aside FDA refusal in August 2025 and remanded the sNDA
• Regulatory transparency milestone: first such drug approval hearing in over 40 years

Negative

• Approval remains unresolved—hearing follows FDA's proposed refusal
• Commercial approval for jet lag is still pending despite court remand

Argus Mar 3 session

-4.04% close to close Open Argus

Details

News Market Reaction – VNDA

On Mar 3, the day this news came out, VNDA closed 4.04% below the previous close.

Data tracked by StockTitan Argus for the Mar 3 session.

Market Context

This announcement details a rare FDA evidentiary hearing under 21 CFR Part 12 for HETLIOZ® in jet la...

Analysis

This announcement details a rare FDA evidentiary hearing under 21 CFR Part 12 for HETLIOZ® in jet lag disorder, following a court ruling that criticized the agency’s prior review. Historically, Vanda’s clearest value inflections came with outright approvals like NEREUS™ and BYSANTI™, while process-heavy disputes drew mixed reactions. Investors may focus on hearing outcomes, HETLIOZ® label expansion prospects, use of the $200,000,000 shelf, and how these interact with the company’s broader CNS portfolio.

Key Figures

Shelf registration size: $200,000,000 Shelf reference price: $7.43 per share Persistence duration: 7 years +5 more

Shelf registration size

$200,000,000

S-3 shelf filed Feb 12, 2026

Shelf reference price

$7.43 per share

Last reported sale on Feb 11, 2026 in S-3 filing

Persistence duration

7 years

Time Vanda cites advocating on HETLIOZ® jet lag application

Historical gap

over 40 years

Time since last similar FDA Part 12 drug approval hearing

Case number

24-1049

Vanda Pharmaceuticals Inc. v. FDA in D.C. Circuit

Regulation cited

21 CFR Part 12

Governs the formal evidentiary hearing process

Section cited

21 CFR § 12.120

Defines issuance of the presiding officer’s initial decision

Publication date

March 3, 2026

Press release announcement date

Previous Fda approval Reports

5 past events · Latest: Feb 20

Same Type 5 events

1. Feb 20

   FDA drug approval

   24h Move

   +41.5%

   Full FDA approval of BYSANTI™ for bipolar I disorder and schizophrenia.

2. Dec 30

   FDA drug approval

   24h Move

   +25.5%

   FDA approval of NEREUS™ for motion‑induced vomiting with strong efficacy data.

3. May 05

   NDA acceptance

   24h Move

   +0.4%

   FDA acceptance of Bysanti™ NDA with decision date set for early 2026.

4. Apr 23

   FDA hearing delay

   24h Move

   -1.8%

   Company challenged FDA bureaucrats over delays in tradipitant hearing scheduling.

5. Mar 31

   NDA submission

   24h Move

   -2.1%

   Initial submission of Bysanti™ NDA for bipolar I disorder and schizophrenia.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

supplemental new drug application, sNDA, center for drug evaluation and research, non-24-hour sleep-wake disorder, +1 more

5 terms

supplemental new drug application regulatory

"proposal to refuse approval of Vanda's supplemental new drug application (sNDA) for HETLIOZ"

A supplemental new drug application is a request submitted to regulatory authorities to make changes to an existing approved medication, such as adding new uses, strengths, or formulations. For investors, it signals that a pharmaceutical company is seeking approval for new product developments or expanded applications, which can impact the company's future sales, market potential, and stock value.

sNDA regulatory

"proposal to refuse approval of Vanda's supplemental new drug application (sNDA) for HETLIOZ"

A SNDA (Subordination, Non‑Disturbance and Attornment Agreement) is a legal pact among a property owner’s lender, the owner’s tenants, and sometimes the landlord that sets who keeps lease rights if the property is sold or a mortgage is enforced. Think of it as a rulebook that decides whether a tenant can stay and keep paying rent or must answer to a new owner after a foreclosure. For investors, an SNDA matters because it protects predictable rental income, clarifies who has priority on claims against a property, and therefore affects a property’s value and the security of related loans.

center for drug evaluation and research regulatory

"review the Center for Drug Evaluation and Research's (CDER) proposal to refuse approval"

A U.S. federal regulatory office that reviews and decides whether new and existing prescription and over‑the‑counter drugs are safe and effective for patients. Its decisions set the rules for whether a medicine can be sold, what claims can be made about it, and what warnings are required. Investors watch it like a gatekeeper: approval unlocks market access and revenue, while delays or rejections create risk and uncertainty for a drug maker.

non-24-hour sleep-wake disorder medical

"approved in the United States for Non-24-Hour Sleep-Wake Disorder and nighttime sleep"

A chronic circadian rhythm condition in which a person’s internal body clock fails to match the 24-hour day, causing sleep times to shift later each day like a clock that keeps gaining minutes. It leads to repeated cycles of poor nighttime sleep and daytime sleepiness that can impair work, school and daily routines; for investors, that means ongoing demand for approved treatments, potential regulatory scrutiny, healthcare costs, and impacts on productivity and disability claims.

smith-magenis syndrome medical

"sleep disturbances associated with Smith-Magenis syndrome. The pending sNDA seeks"

A rare genetic disorder caused by a missing or altered gene that acts like a faulty instruction manual for brain and body development, leading to intellectual disability, distinctive behavior, sleep problems and other health issues. Investors care because rare disorders often create specific markets for diagnostics, therapies and supportive care; successes or setbacks in research, clinical trials or regulatory approval can meaningfully affect the valuation of companies focused on these conditions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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WASHINGTON, March 3, 2026 /PRNewswire/ -- Vanda Pharmaceuticals Inc. (Vanda) (Nasdaq: VNDA) today announced that the U.S. Food and Drug Administration (FDA) has granted the company's request for a formal evidentiary public hearing to review the Center for Drug Evaluation and Research's (CDER) proposal to refuse approval of Vanda's supplemental new drug application (sNDA) for HETLIOZ^® (tasimelteon) in the treatment of jet lag disorder.

The FDA confirmed the decision to grant a hearing in a letter from the Office of the Commissioner dated March 2, 2026. The hearing will proceed under 21 CFR Part 12, after which the presiding officer will issue an initial decision pursuant to 21 CFR § 12.120.

Granting a formal evidentiary public hearing in response to a proposed refusal to approve a drug application is a rare and highly significant regulatory step. Publicly available records and historical accounts indicate that the FDA has not granted such a hearing under 21 CFR Part 12 in the context of drug approvals for decades—potentially over 40 years—underscoring the gravity of the legal and scientific issues raised by Vanda.

"We are encouraged by the FDA's decision to grant a formal evidentiary hearing on the proposed refusal of our jet lag application for HETLIOZ^®," said Mihael H. Polymeropoulos, M.D., President, Chief Executive Officer, and Chairman of the Board of Vanda Pharmaceuticals. "This procedural victory reflects Vanda's 7-year persistence in advocating for fairness and the rigorous pursuit of scientific truth on behalf of patients. At the same time, it represents a significant reform step by the FDA toward greater transparency—the first such formal drug approval hearing in over 40 years."

This development follows Vanda's prior success in Vanda Pharmaceuticals Inc. v. FDA, case no. 24-1049, before the U.S. Court of Appeals for the D.C. Circuit. In August 2025, the court set aside the FDA's earlier refusal to approve HETLIOZ^® for jet lag disorder. The ruling held that the FDA unlawfully failed to adequately engage with Vanda's evidence—despite statistically significant results from clinical trials—and criticized the agency's cursory treatment of expert, evidence-based submissions. The court remanded the matter, directing the FDA to finally resolve Vanda's sNDA or commence a hearing.

HETLIOZ^® is currently approved in the United States for Non-24-Hour Sleep-Wake Disorder and nighttime sleep disturbances associated with Smith-Magenis syndrome. The pending sNDA seeks to expand approval to treat jet lag disorder, a condition that affects millions of travelers worldwide — including business travelers, athletes, and rapidly deployed troops — for which there is currently no FDA-approved therapeutic.

About Vanda Pharmaceuticals Inc.

Vanda is a leading global biopharmaceutical company focused on the development and commercialization of innovative therapies to address high unmet medical needs and improve the lives of patients. For more on Vanda Pharmaceuticals Inc., please visit www.vandapharma.com and follow us on X @vandapharma.

About HETLIOZ^®

HETLIOZ^® (tasimelteon) is a melatonin‑receptor agonist, approved in the United States for the treatment of Non‑24‑Hour Sleep‑Wake Disorder and nighttime sleep disturbances associated with Smith‑Magenis Syndrome. For full U.S. Prescribing Information for HETLIOZ^®, including indications and Important Safety Information, visit www.hetlioz.com.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

Various statements in this press release, including, but not limited to statements regarding the upcoming formal evidentiary hearing, are "forward-looking statements" under the securities laws. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. Forward-looking statements are based upon current expectations and assumptions that involve risks, changes in circumstances and uncertainties. Important factors that could cause actual results to differ materially from those reflected in Vanda's forward-looking statements include, among others, the outcome of the formal evidentiary hearing. Therefore, no assurance can be given that the results or developments anticipated by Vanda will be realized, or even if substantially realized, that they will have the expected consequences to, or effects on, Vanda. Forward-looking statements in this press release should be evaluated together with the various risks and uncertainties that affect Vanda's business and market, particularly those identified in the "Cautionary Note Regarding Forward-Looking Statements", "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of Vanda's most recent Annual Report on Form 10-K, as updated by Vanda's subsequent Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other filings with the U.S. Securities and Exchange Commission, which are available at www.sec.gov.

All written and verbal forward-looking statements attributable to Vanda or any person acting on its behalf are expressly qualified in their entirety by the cautionary statements contained or referred to herein. Vanda cautions investors not to rely too heavily on the forward-looking statements Vanda makes or that are made on its behalf. The information in this press release is provided only as of the date of this press release, and Vanda undertakes no obligation, and specifically declines any obligation, to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Corporate Contact:
Kevin Moran
Senior Vice President, Chief Financial Officer and Treasurer
Vanda Pharmaceuticals Inc.
202-734-3400
pr@vandapharma.com

Jim Golden / Jack Kelleher / Dan Moore
Collected Strategies
VANDA-CS@collectedstrategies.com

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SOURCE Vanda Pharmaceuticals Inc.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Vanda (VNDA) announce on March 3, 2026 about HETLIOZ® and the FDA?

Vanda announced the FDA granted a formal evidentiary public hearing to review a proposed refusal. According to the company, the FDA letter is dated March 2, 2026 and the hearing will proceed under 21 CFR Part 12 after a D.C. Circuit remand.

Why is the FDA hearing for VNDA's HETLIOZ® considered significant by investors?

The hearing is significant because such Part 12 drug approval hearings are rare and signal serious legal and scientific issues. According to the company, this is the first formal drug approval hearing in over 40 years, reflecting elevated regulatory scrutiny and visibility.

What was the outcome of the court case Vanda Pharmaceuticals Inc. v. FDA (case no. 24-1049)?

The D.C. Circuit set aside the FDA's earlier refusal and remanded the sNDA in August 2025. According to the company, the court found FDA failed to adequately engage with Vanda's evidence and directed resolution or a hearing.

Does the FDA decision on March 2, 2026 mean HETLIOZ® is approved for jet lag disorder?

No; the FDA granted a hearing to review the proposed refusal but did not approve the sNDA. According to the company, the hearing will precede a presiding officer's initial decision under 21 CFR § 12.120.

What current US indications does HETLIOZ® hold and what is VNDA seeking with the sNDA?

HETLIOZ® is approved for Non-24-Hour Sleep-Wake Disorder and Smith-Magenis syndrome nighttime sleep disturbances. According to the company, the pending sNDA seeks expansion to treat jet lag disorder, for which no FDA-approved therapy currently exists.