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AXS-14

Phase 3

Fibromyalgia | Small molecule | Musculoskeletal |Axsome Therapeutics, Inc.|Trials Updated: Oct 13, 2026

AXS-14 target and mechanism

Molecular targetnorepinephrine transporter
ModalitySmall molecule

Also known as 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

AXS-14 clinical trials

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 Sites35

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 10 trials

Top 1 of 2 competitors

CompanyTickerTrialsLead PhaseDrugs
Axsome Therapeutics, Inc.AXSM2PHASE3AXS-14
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Recent Changes (Last 90 Days)

LOWOct 13, 2026NCT07637162lastUpdatePostDate: changed
LOWOct 13, 2026NCT07637162lastUpdatePostDate: changed
LOWSep 4, 2026NCT07398417lastUpdatePostDate: changed
LOWSep 4, 2026NCT07637162lastUpdatePostDate: changed
LOWSep 4, 2026NCT07398417lastUpdatePostDate: changed
LOWSep 4, 2026NCT07637162lastUpdatePostDate: changed

Frequently asked questions about AXS-14

What is AXS-14 used for in fibromyalgia?

AXS-14 is an investigational small molecule being developed for the treatment of fibromyalgia. It is currently in Phase 3 clinical development and has not been approved by the FDA. Two Phase 3 trials are evaluating its safety and efficacy in patients with fibromyalgia.

What does AXS-14 target?

AXS-14 targets the norepinephrine transporter. By inhibiting this transporter, it is thought to increase norepinephrine levels in the brain, which may help modulate pain pathways involved in fibromyalgia. This mechanism is being studied in Phase 3 clinical trials.

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 AXS-14 for the treatment of fibromyalgia.

What phase is AXS-14 in?

AXS-14 is in Phase 3 clinical development for fibromyalgia. It is an investigational drug and has not received FDA approval. Two Phase 3 trials are currently ongoing, one recruiting participants and one enrolling by invitation.

What clinical trials is AXS-14 in?

AXS-14 is being studied in two Phase 3 trials for fibromyalgia. NCT07398417 is a randomized withdrawal study with 620 participants, and NCT07637162 is an open-label safety study with 300 participants. Both trials are being conducted in the United States.

Is AXS-14 the same as esreboxetine?

Yes, AXS-14 is also known as esreboxetine. The drug is being developed under the name AXS-14, with esreboxetine as its nonproprietary name. Clinical trials for fibromyalgia refer to the drug as AXS-14 (esreboxetine).