Notice2026-11046

Vanda Pharmaceuticals, Inc.; Grant of Hearing Request Regarding a Proposal To Refuse To Approve a Supplemental New Drug Application for HETLIOZ (Tasimelteon)

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Published
June 3, 2026

Issuing agencies

Health and Human Services DepartmentFood and Drug Administration

Abstract

The Food and Drug Administration (FDA or the Agency) is announcing a formal evidentiary public hearing on the proposal to refuse to approve the supplemental new drug application (sNDA) 205677- 004, submitted by Vanda Pharmaceuticals Inc. (Vanda) for HETLIOZ (tasimelteon) capsules, 20 milligrams (mg), to treat jet lag disorder. On October 11, 2022, the Director of FDA's Center for Drug Evaluation and Research (CDER) published a notice of opportunity for hearing on a proposal to refuse to approve sNDA 205677-004. Vanda submitted a timely request for hearing on that proposal. This notice of hearing provides factual and legal information concerning CDER's proposal to refuse to approve sNDA 205677-004 and identifies the factual issues that will be the subject of the evidentiary hearing.

Full Text

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<title>Federal Register, Volume 91 Issue 106 (Wednesday, June 3, 2026)</title>
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[Federal Register Volume 91, Number 106 (Wednesday, June 3, 2026)]
[Notices]
[Pages 33174-33176]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-11046]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket No. FDA-2022-N-2390]


Vanda Pharmaceuticals, Inc.; Grant of Hearing Request Regarding a 
Proposal To Refuse To Approve a Supplemental New Drug Application for 
HETLIOZ (Tasimelteon)

AGENCY: Food and Drug Administration, HHS.

ACTION: Notice.

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SUMMARY: The Food and Drug Administration (FDA or the Agency) is 
announcing a formal evidentiary public hearing on the proposal to 
refuse to approve the supplemental new drug application (sNDA) 205677-
004, submitted by Vanda Pharmaceuticals Inc. (Vanda) for HETLIOZ 
(tasimelteon) capsules, 20 milligrams (mg), to treat jet lag disorder. 
On October 11, 2022, the Director of FDA's Center for Drug Evaluation 
and Research (CDER) published a notice of opportunity for hearing on a 
proposal to refuse to approve sNDA 205677-004. Vanda submitted a timely 
request for hearing on that proposal. This notice of hearing provides 
factual and legal information concerning CDER's proposal to refuse to 
approve sNDA 205677-004 and identifies the factual issues that will be 
the subject of the evidentiary hearing.

DATES: A prehearing conference will be held on July 20, 2026, beginning 
at 10 a.m. Eastern Daylight Time. Any person wishing to participate in 
this hearing shall submit a written notice of participation by July 6, 
2026. Disclosure of data and information as required by 21 CFR 12.85(b) 
must be made by August 3, 2026.

ADDRESSES: You may submit a written notice of participation and data 
and information required under 21 CFR 12.85 by either of the following 
methods:

Electronic Submissions

    Submit electronically in the following way:
    <bullet> Federal eRulemaking Portal: <a href="https://www.regulations.gov">https://www.regulations.gov</a>. 
Follow the instructions for submitting information. Information 
submitted electronically, including attachments, to <a href="https://www.regulations.gov">https://www.regulations.gov</a> will be posted to the docket unchanged. Because 
your information will be made public, you are solely responsible for 
ensuring that your information does not include any confidential 
information that you or a third party may not wish to be posted, such 
as medical information, your or anyone else's Social Security number, 
or confidential business information, such as a manufacturing process. 
Please note that if you include your name, contact information, or 
other information that identifies you in the body of your information, 
that information will be posted on <a href="https://www.regulations.gov">https://www.regulations.gov</a>.
    <bullet> If you want to submit any information with confidential 
information that you do not wish to be made available to the public, 
submit the information as a written/paper submission and in the manner 
detailed (see ``Written/Paper Submission'' and ``Instructions'').

Written/Paper Submissions

    Submit written/paper submissions as follows:
    <bullet> Mail/Hand delivery/Courier (for written/paper 
submissions): Dockets

[[Page 33175]]

Management Staff (HFA-305), Food and Drug Administration, 5630 Fishers 
Lane, Rm. 1061, Rockville, MD 20852.
    <bullet> For written/paper submissions sent to the Dockets 
Management Staff, FDA will post your submission, as well as any 
attachments, except for the information submitted, marked and 
identified, as confidential, if submitted as detailed in 
``Instructions.''
    Instructions: All submissions received must include the Docket No. 
FDA-2022-N-2390 for ``Vanda Pharmaceuticals, Inc.; Grant of Hearing 
Request Regarding a Proposal to Refuse to Approve a Supplemental New 
Drug Application for HETLIOZ (Tasimelteon).'' Received submissions will 
be placed in the docket and, except for those submitted as 
``Confidential Submissions,'' publicly viewable at <a href="https://www.regulations.gov">https://www.regulations.gov</a> or at the Dockets Management Staff between 9 a.m. 
and 4 p.m., Monday through Friday, 240-402-7500.
    <bullet> Confidential Submissions--To make a submission with 
confidential information that you do not wish to be made publicly 
available, send your submissions only as a written/paper submission. 
You should submit two copies total. One copy will include the 
information you claim to be confidential with a heading or cover note 
that states ``THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION.'' The 
Agency will review this copy, including the claimed confidential 
information, in its consideration of any decisions on this matter. The 
second copy, which will have the claimed confidential information 
redacted/blacked out, will be available for public viewing and posted 
on <a href="https://www.regulations.gov">https://www.regulations.gov</a>. Submit both copies to the Dockets 
Management Staff. If you do not wish your name and contact information 
to be made publicly available, you can provide this information on the 
cover sheet and not in the body of your submissions and you must 
identify this information as ``confidential.'' Any information marked 
as ``confidential'' will not be disclosed except in accordance with 21 
CFR 10.20 and other applicable disclosure law. For more information 
about FDA's posting of information to public dockets, see 80 FR 56469, 
September 18, 2015, or access the information at: <a href="https://www.govinfo.gov/content/pkg/FR-2015-09-18/pdf/2015-23389.pdf">https://www.govinfo.gov/content/pkg/FR-2015-09-18/pdf/2015-23389.pdf</a>.
    Docket: For access to the docket to read background documents or 
the electronic and written/paper comments received, go to <a href="https://www.regulations.gov">https://www.regulations.gov</a> and insert the docket number, found in brackets in 
the heading of this document, into the ``Search'' box and follow the 
prompts and/or go to the Dockets Management Staff, 5630 Fishers Lane, 
Rm. 1061, Rockville, MD 20852, 240-402-7500.
    DAB E-File: Beginning on the date of this notice, parties to the 
hearing and participants should make submissions related to this 
hearing to Departmental Appeals Board electronic filing system (DAB E-
File) at: <a href="https://dab.efile.hhs.gov/">https://dab.efile.hhs.gov/</a>, except insofar as they are 
submitting initial notices of participation or disclosing data and 
information pursuant to 21 CFR 12.85. Submissions to DAB E-File by 
parties and participants must conform to the Case Development Order 
(Ref. 1) and other orders issued by the presiding officer. Although 
certain regulations in 21 CFR part 12 require submissions for hearing 
matters to be filed with the Dockets Management Staff, FDA will deem a 
submission made by a party or participant to DAB E-File that conforms 
to the presiding officer's orders and this notice to satisfy any such 
applicable requirement and will make the submission available on the 
docket (see ``Docket''). Non-parties and non-participants should 
continue to make submissions through Dockets Management Staff, as 
detailed in ``Electronic Submissions'' and ``Written/Paper 
Submissions.'' The record will continue to be accessible at <a href="https://www.regulations.gov">https://www.regulations.gov</a> or through the Dockets Management Staff, between 9 
a.m. and 4 p.m., Monday through Friday.

FOR FURTHER INFORMATION CONTACT: Karen Fikes, Office of Scientific 
Integrity, Food and Drug Administration, 10903 New Hampshire Avenue, 
Bldg. 1, Rm. 4218, Silver Spring, MD 20993, 301-796-9603.

SUPPLEMENTARY INFORMATION:

I. Background

    On January 31, 2014, FDA approved new drug application 205677 for 
HETLIOZ (tasimelteon) for treatment of non-24-hour sleep-wake disorder, 
a circadian-rhythm disorder that disproportionately afflicts 
individuals who are totally blind. On October 16, 2018, Vanda submitted 
sNDA 205677-004, which seeks approval of HETLIOZ (tasimelteon) to treat 
jet lag disorder. On August 16, 2019, in accordance with 21 CFR 
314.10(a), CDER issued a complete response letter notifying Vanda of 
its determination that sNDA 205677-004 is not approvable in its current 
form.
    On June 30, 2022, Vanda requested an opportunity for a hearing 
under 21 CFR 314.110(b)(3) on whether there are grounds under section 
505(d) of the Federal Food, Drug, and Cosmetic Act (FD&C Act) (21 
U.S.C. 355(d)) for denying approval of sNDA 205677-004 for the 
treatment of jet lag disorder. On August 29, 2022, by registered mail, 
CDER notified Vanda of an opportunity for hearing on a proposal to 
refuse to approve sNDA 205677-004. On October 11, 2022, FDA published a 
notice of opportunity for hearing on the proposal to refuse approval 
(NOOH) in the Federal Register (87 FR 61337). On November 10, 2022, 
Vanda filed a notice of participation and requested a hearing and, on 
December 12, 2022, submitted information, data, and analyses in support 
of that request. On June 12, 2023, CDER submitted a proposed order 
denying Vanda's request for a hearing and refusing to approve the sNDA. 
On August 11, 2023, Vanda responded to CDER's proposed order. On 
September 8, 2023, CDER submitted a reply, which included a revised 
proposed order.
    After considering the parties' submissions, FDA issued a decision 
on March 1, 2024, denying Vanda's request for a hearing and refusing to 
approve sNDA 205677-004. The United States Court of Appeals for the 
District of Columbia Circuit subsequently set aside FDA's denial of 
Vanda's requested hearing and remanded the matter for further 
proceedings consistent with its opinion (Vanda Pharms., Inc. v. FDA, 
150 F.4th 563 (D.C. Cir. 2025)). At the request of CDER and Vanda, 
FDA's Office of the Commissioner later held the matter in abeyance 
until February 6, 2026. By letter dated March 2, 2026, the Office of 
the Commissioner granted Vanda's hearing request.

II. Presiding Officer

    The Office of the Commissioner hereby appoints Administrative Law 
Judge Keith W. Sickendick, at the Department of Health and Human 
Services' Departmental Appeals Board, to serve as presiding officer 
under 21 CFR 12.60 and to conduct the hearing in accordance with 
authority prescribed in 21 CFR 12.70.

III. Statutory Grounds for the Hearing

    In the NOOH published on October 11, 2022, CDER proposed to refuse 
to approve sNDA 205677-004 under section 505(d)(5) of the FD&C Act (21 
U.S.C. 355(d)(5)) because the application lacks ``substantial evidence 
that the drug will have the effect it purports or is represented to 
have under the conditions of use prescribed, recommended, or suggested 
in the proposed labeling.''
    Vanda has the burden of proof in this proceeding. See 21 CFR 
12.87(d) (putting the burden of proof on the

[[Page 33176]]

hearing participant requesting approval of a drug application).

IV. Factual Issues for the Hearing

    The central factual issue for the hearing is whether Vanda has 
provided substantial evidence that HETLIOZ (tasimelteon) is effective 
for treatment of jet lag disorder. As noted by CDER, the decision by 
the Court of Appeals for the D.C. Circuit included two key holdings 
that limit the factual scope of the hearing with respect to that 
central issue. First, the Court upheld FDA's previous conclusion that 
the question for any hearing on this matter would be whether there is 
substantial evidence of effectiveness for the indication in the sNDA's 
proposed labeling--as opposed to any narrower or modified indication 
that Vanda might now propose, such as treatment of insomnia related to 
jet lag disorder (Vanda, 150 F.4th at 578-79). Second, the Court held 
that FDA ``reasonably determined'' that approval of the proposed 
indication for HETLIOZ (tasimelteon)--treatment of jet lag disorder--
requires establishing an effect on both sleep and next-day impairment 
(Id. at 577 (finding that Vanda has an ``obligation to prove 
[effectiveness regarding] the second symptom of jet lag, next-day 
impairment'' and that it is not adequate to ``show only that 
tasimelteon can remedy sleep-disturbance symptoms'')).
    On May 15, 2026, pursuant to 21 CFR 12.85(a)(4), CDER submitted to 
the Dockets Management Staff, inter alia, a narrative position 
statement that, consistent with the deficiencies listed in the NOOH and 
the decision by the Court of Appeals for the D.C. Circuit, identifies 
eight specific issues for the hearing:

1. Whether Vanda failed to demonstrate that the primary endpoints in 
Studies 2102, 3101, and 3107 were appropriate to assess 
effectiveness of tasimelteon for the treatment of jet lag disorder.
2. Whether Vanda failed to demonstrate that the secondary endpoints 
in Studies 2102, 3101, and 3107 were appropriate to assess 
effectiveness of tasimelteon for the treatment of jet lag disorder.
3. Whether the sNDA provides sufficient evidence of an effect on 
symptoms that are integral to jet lag disorder, such that 
effectiveness could be established for the proposed indication--
treatment of jet lag disorder.
4. Whether Vanda's analysis of the secondary endpoints in Studies 
2102, 3101, and 3107 lacks the statistical rigor to reliably support 
conclusions about the effectiveness of tasimelteon for the treatment 
of jet lag disorder.
5. Whether the interpretability of Studies 3101 and 3107 is impaired 
by the failure to include sufficient data (e.g., via collecting 
baseline polysomnograms or other methods) to determine whether 
subjects experienced a sleep disturbance after undergoing a phase 
advance in the laboratory setting.
6. Whether Vanda failed to provide adequate data to demonstrate 
effectiveness of the drug when administered according to the dosing 
and administration information in the proposed labeling.
7. Whether Vanda's assessment of next-day functioning was 
inadequate.
8. Whether Vanda's application lacks adequate data to characterize 
the use of tasimelteon to treat jet lag disorder associated with 
westward travel (CDER's Narrative Position Statement, 5-6).

    The presiding officer may further revise the factual issues for the 
hearing under 21 CFR 12.35(b).

V. Parties to the Hearing

    The parties to the hearing will be FDA's CDER and Vanda. Other 
interested persons shall be permitted to participate as nonparty 
participants as provided by 21 CFR 12.45 and 12.89.

VI. Disclosure of Information by CDER, Vanda, and Other Hearing 
Participants

    In accordance with 21 CFR 12.85(a), CDER has filed with the Dockets 
Management Staff a narrative statement setting forth its position on 
the issues of the hearing and a summary of the types of evidence to be 
introduced in support of its position in the hearing, together with 
copies of data and information contained in the Center's files that 
relate to the issues to be resolved at the hearing. Hearing 
participants other than CDER, including Vanda, shall disclose data and 
information and submit their narrative statements pursuant to 21 CFR 
12.85(b) to the Dockets Management Staff (see ADDRESSES) on or before 
August 3, 2026, or within another period of time set by the presiding 
officer. Interested persons may also examine the data on the drug 
subject to this hearing notice (with the exception of any data 
identified as confidential pursuant to the provisions of 21 CFR 
10.20(j)) via <a href="https://www.regulations.gov">https://www.regulations.gov</a> or at the Dockets Management 
Staff, between 9 a.m. and 4 p.m., Monday through Friday (see 
ADDRESSES).

VII. Prehearing Conference

    The prehearing conference will be held on July 20, 2026, beginning 
at 10:00 a.m. Eastern Daylight Time, by videoconference with 
instructions to be provided. The hearing will be held on a date to be 
set at the prehearing conference. Written notices of participation 
shall be filed with the Dockets Management Staff no later than July 6, 
2026. All participants are required both to attend the prehearing 
conference and to be prepared to comply with the provisions of 21 CFR 
12.92.

VIII. Conclusion

    In accordance with the foregoing, under section 505 the FD&C Act 
(21 U.S.C. 355) and under authority delegated to me, I order that a 
formal evidentiary public hearing be held on the issues set out in this 
notice. The hearing will be open to the public by visiting the HHS Live 
Streaming page at <a href="http://www.hhs.gov/live">www.hhs.gov/live</a>. A direct link for the hearing will 
be visible on the HHS Live Streaming page once a hearing date has been 
set by the presiding officer after the prehearing conference. 
Interested persons are encouraged to monitor the docket for any updated 
links for public access.

IX. References

1. U.S. Department of Health and Human Services, Departmental Appeals 
Board, Civil Remedies Division, Vanda Pharmaceuticals, Inc. 
Supplemental New Drug Application for Hetlioz (Tasimelteon), C-26-457, 
Case Development Order [Civil Remedies Division Procedures, March 28, 
2016], June 3, 2026.

Grace R. Graham,
Deputy Commissioner for Policy, Legislation, and International Affairs.
[FR Doc. 2026-11046 Filed 6-2-26; 8:45 am]
BILLING CODE 4164-01-P


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Indexed from Federal Register on June 3, 2026.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.