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AXS-14

Phase 3

Fibromyalgia | Small molecule | Musculoskeletal |Axsome Therapeutics, Inc.|Last Updated: Sep 4, 2026

Target and mechanism

Molecular targetnorepinephrine transporter
ModalitySmall molecule

Also known as AXS-14 (esreboxetine), AXS-14 (Esreboxetine)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials2
Total Enrollment920

FDA Designations

No designations recorded

Clinical trial landscape

AXS-14 · 2 trials · 1 indication

Phase 3 2
NCT07637162Open-Label Safety Study of AXS-14 in Subjects With FibromyalgiaFibromyalgia
ENROLLING BY_INVITATION300 Analytics
NCT07398417Fibromyalgia Response With Esreboxetine Evaluated Using a Randomized Withdrawal Research DesignFibromyalgia
RECRUITING620 Analytics
PHASE3ENROLLING BY_INVITATION
Open-Label Safety Study of AXS-14 in Subjects With Fibromyalgia
FibromyalgiaUnlock trial analytics
PHASE3RECRUITING
Fibromyalgia Response With Esreboxetine Evaluated Using a Randomized Withdrawal Research Design
FibromyalgiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Long-term Safety
Up to 52 weeks.

Incidence of treatment-emergent adverse events following dosing with AXS-14

Time from randomization to loss of therapeutic response
12 Weeks
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
AXS-14 (esreboxetine)EXPERIMENTALUp to 52 weeks.
PlaceboPLACEBO_COMPARATOR• Up to 12 weeks in the randomized double-blind period (if applicable)

Interventions

NameTypeDescription
AXS-14 (esreboxetine)DRUGAXS-14 tablets taken twice daily.
PlaceboDRUGPlacebo tablets taken once daily
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites31

Inclusion Criteria: * Participation in AXS-14-FM-301. Exclusion Criteria: * Unable to comply with study procedures. * Medically inappropriate for study participation in the opinion of the Investigator.

Countries:United States
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Competitive Landscape -Fibromyalgia 5 trials

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Recent Changes (Last 90 Days)

LOWSep 4, 2026NCT07398417lastUpdatePostDate: changed
LOWSep 4, 2026NCT07637162lastUpdatePostDate: changed
LOWSep 4, 2026NCT07398417lastUpdatePostDate: changed
LOWSep 4, 2026NCT07637162lastUpdatePostDate: changed
LOWJul 24, 2026NCT07398417lastUpdatePostDate: changed
LOWJul 24, 2026NCT07637162lastUpdatePostDate: changed
LOWJul 24, 2026NCT07398417lastUpdatePostDate: changed
LOWJul 24, 2026NCT07637162lastUpdatePostDate: changed
LOWJun 9, 2026NCT07637162NEW_TRIAL: changed
LOWJun 9, 2026NCT07637162NEW_TRIAL: changed

Frequently asked questions about AXS-14

What is AXS-14 used for?

AXS-14 is an investigational small molecule being developed for the treatment of fibromyalgia, a chronic musculoskeletal condition characterized by widespread pain. It is currently in Phase 3 clinical development and has not been approved by the FDA.

What does AXS-14 target?

AXS-14 is a small molecule, but its specific molecular target has not been disclosed in available information. The drug is being studied for its potential to treat fibromyalgia, though the exact mechanism of action is not specified.

Who makes AXS-14?

AXS-14 is being developed by Axsome Therapeutics, Inc., a biopharmaceutical company traded on NASDAQ under the ticker AXSM. The company is conducting Phase 3 clinical trials to evaluate the drug for fibromyalgia.

What phase is AXS-14 in?

AXS-14 is in Phase 3 clinical development. It is an investigational drug and has not been approved by the FDA. Two Phase 3 trials are currently ongoing, including a randomized withdrawal study and an open-label safety study.

What clinical trials is AXS-14 in?

AXS-14 is being evaluated in two Phase 3 trials. NCT07398417 is a randomized, double-blind, placebo-controlled withdrawal study with 620 participants, and NCT07637162 is an open-label safety study with 300 participants. Both are enrolling in the United States.

Is AXS-14 the same as esreboxetine?

Yes, AXS-14 is also known as esreboxetine. The drug is referred to by both names in clinical trial documentation, and both names refer to the same investigational compound being developed for fibromyalgia.