Phase 3 Clinical Trials With Primary Completion Dates in September 2025

This is a list of Phase 3 trials with primary completion dates in September 2025 for companies with a market cap less than $1B. For complete clinical trial coverage, please see our Trial Tracker tool. It includes information on all clinical trials for publicly traded companies, screenable by stock symbol, market cap, disease, completion date, and phase.

The primary completion date is the date that the final subject was examined or received an intervention for the purposes of final collection of data for the primary outcome. It provides advance notice that a company will be announcing trial results in the near future.

SymbolCompanyPrimary Completion DatePhaseNCT IDTitle
ALECAlector, Inc.2025-09-01Phase 3NCT04374136A Phase 3 Study to Evaluate Efficacy and Safety of AL001 in Frontotemporal Dementia (INFRONT-3)
ALMSAlumis Inc.2025-09-01Phase 3NCT06586112A Study to Evaluate the Efficacy and Safety of ESK-001 in Patients With Moderate to Severe Plaque Psoriasis
ALMSAlumis Inc.2025-09-01Phase 3NCT06588738A Study in Patients With Moderate to Severe Plaque Psoriasis to Evaluate the Efficacy and Safety of ESK-001
APLSApellis Pharmaceuticals, Inc.2025-09-01Phase 3NCT04770545An Extension Study to Evaluate the Long-term Safety and Efficacy of Pegcetacoplan (APL-2) in Subjects With Geographic Atrophy Secondary to AMD
BFRIBiofrontera Inc.2025-09-01Phase 3NCT05662202Study to Evaluate the Safety, Tolerability and Efficacy of BF-200 ALA (AmeluzĀ®) in the Field-directed Treatment of Actinic Keratosis (AK) on the Extremities and Neck/Trunk With Photodynamic Therapy (PDT) Using a RhodoLED Lamp
GOSSGossamer Bio, Inc.2025-09-01Phase 3NCT05934526Efficacy and Safety of Seralutinib in Adult Subjects With PAH (PROSERA)
HLBBFH. Lundbeck A/S2025-09-01Phase 3NCT05164172A Study With Eptinezumab in Children and Adolescents (6 to 17 Years) With Chronic or Episodic Migraine
IONSIonis Pharmaceuticals, Inc.2025-09-01Phase 3NCT04849741A Study to Evaluate the Safety and Efficacy of Zilganersen (ION373) in Patients With Alexander Disease (AxD)
KPTIKaryopharm Therapeutics Inc.2025-09-01Phase 3NCT04562389Study of Selinexor in Combination with Ruxolitinib in Myelofibrosis
OGNOrganon & Co.2025-09-01Phase 3NCT06134479Comparison of Sequential CFA vs CFA +rFSH for Elective Fertility Preservation.
ORGOOrganogenesis Holdings Inc.2025-09-01Phase 3NCT06000410A Study to Evaluate the Efficacy of Amniotic Suspension Allograft in Patients with Osteoarthritis of the Knee
SLSSELLAS Life Sciences Group, Inc.2025-09-01Phase 3NCT04229979Galinpepimut-S Versus Investigator's Choice of Best Available Therapy for Maintenance in AML CR2/CRp2