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Trichostatin A

Phase 2

Onychomycosis of Toenail | Small molecule | Other |Vanda Pharmaceuticals Inc.|Last Updated: Feb 4, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLED
Total Trials1
Total Enrollment50
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07065773Safety, Tolerability and Efficacy of Trichostatin A in Patients With Mild to Severe OnychomycosisPHASE2 ACTIVE NOT_RECRUITING 50May 5, 2025Sep 1, 2026Feb 4, 20265 United States
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Study Endpoints
Primary Endpoints
Safety and Tolerability
24 weeks

Subjects will be asked about AEs weekly during the evaluation phase and at every follow-up visit; descriptions of AEs will include, at a minimum: date of onset, date ended, severity, seriousness, relationship to the study drug, and outcome.

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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Trichostatin AEXPERIMENTAL -
Interventions
NameTypeDescription
Trichostatin ADRUGTopical Study Drug
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Eligibility Criteria
Age Range18 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: * Willingness to provide signed and dated written voluntary informed consent. * Adults with diagnosis of mild-to-severe DLSO/DSO affecting at least one great toenail. * Positive microscopic examination with KOH for dermatophyte hyphae. * Positive dermatophyte culture or mixed de...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT07065773primaryCompletionDate: changed
LOWMay 24, 2026NCT07065773studyFirstPostDate: changed