2 Hemophilia Clinical Trials in Philadelphia, PA (2026)

Q: How do I join a clinical trial in Philadelphia?

Browse available studies, click one that interests you, and complete the free eligibility form. A study coordinator at the Philadelphia research site will contact you.

Recruiting Hemophilia Studies in Philadelphia

NCT05145127Recruiting

Open-Label Extension Study of Marstacimab in Hemophilia Participants With or Without Inhibitors

Study B7841007 is an open-label extension study to assess the long-term safety, tolerability, and efficacy of prophylaxis treatment with marstacimab in participants who did not require "Early Terminat...

Philadelphia, PAPHASE3245 participantsPfizer

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NCT05568719Recruiting

Safety and Effectiveness of Giroctocogene Fitelparvovec or Fidanacogene Elaparvovec in Patients With Hemophilia A or B Respectively

A study to learn about the long-term safety and efficacy of giroctocogene fitelparvovec or fidanacogene elaparvovec in patients with hemophilia A or hemophilia B respectively, who have received treatm...

Philadelphia, PAPHASE3173 participantsPfizer

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About Hemophilia Clinical Trials in Philadelphia

Hemophilia is a rare genetic bleeding disorder in which blood does not clot properly due to deficiency of clotting factors. Hemophilia A (factor VIII) and hemophilia B (factor IX) are the most common types. Treatment includes factor replacement therapy and newer approaches like gene therapy.

There are currently 2 hemophilia clinical trials recruiting participants in Philadelphia, PA. These studies are seeking a combined 418 participants. Research is being sponsored by Pfizer. Clinical trial participation is free and participants receive study-related medical care at no cost.

Hemophilia Clinical Trials in Philadelphia — FAQ

Are there hemophilia clinical trials in Philadelphia?

Yes, there are 2 hemophilia clinical trials currently recruiting in Philadelphia, PA. Browse the studies on this page to find one that fits.

How do I join a clinical trial in Philadelphia?

Browse the studies listed above, click one that interests you, and complete the free eligibility form. A study coordinator at the Philadelphia research site will contact you about next steps.

Are clinical trials in Philadelphia free?

Yes, clinical trial participation is always free. Study-related treatment, medical tests, and doctor visits are provided at no cost. Many Philadelphia studies also compensate for your time and travel.

What hemophilia treatments are being tested?

The 2 active trials in Philadelphia are testing new therapies including novel drugs, biologics, and treatment approaches for hemophilia.

Data updated July 19, 2026 from ClinicalTrials.gov