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Recruiting Phase 3 NCT05568719

NCT05568719 Safety and Effectiveness of Giroctocogene Fitelparvovec or Fidanacogene Elaparvovec in Patients With Hemophilia A or B Respectively

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Clinical Trial Summary
NCT ID NCT05568719
Status Recruiting
Phase Phase 3
Sponsor Pfizer
Condition Hemophilia A
Study Type INTERVENTIONAL
Enrollment 173 participants
Start Date 2022-12-28
Primary Completion 2040-02-25

Eligibility & Interventions

Sex Male only
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
Testing of hepatic AAV Vector integration

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 3 trials are large pivotal studies comparing the treatment to current standard of care or placebo. Your participation directly contributes to the evidence needed for regulatory approval.

This trial targets 173 participants in total. It began in 2022-12-28 with a primary completion date of 2040-02-25.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

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 treatment through prior participation in a Pfizer-sponsored clinical trial. Data collection and participant visits will be based on standard of care.

Eligibility Criteria

Inclusion Criteria: -Only participants who received investigational giroctocogene fitelparvovec or fidanacogene eleparvovec and were enrolled in a Pfizer-sponsored study (C0371002, C0371003, C0371005, C3731001, C3731003) are eligible. Exclusion Criteria: -None

Contact & Investigator

Central Contact

Pfizer CT.gov Call Center

✉ ClinicalTrials.gov_Inquiries@pfizer.com

📞 1-800-718-1021

Principal Investigator

Pfizer CT.gov Call Center

STUDY DIRECTOR

Pfizer

Frequently Asked Questions

Who can join the NCT05568719 clinical trial?

This trial is open to male participants only, aged 18 Years or older, studying Hemophilia A. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT05568719 trial and what does that mean for participants?

Phase 3 trials are large-scale studies comparing the new treatment to existing standards of care or a placebo. They provide the evidence needed for regulatory approval. This trial targets 173 participants.

Is NCT05568719 currently recruiting?

Yes, NCT05568719 is actively recruiting participants. Contact the research team at ClinicalTrials.gov_Inquiries@pfizer.com for enrollment information.

Where is the NCT05568719 trial being conducted?

This trial is being conducted at Rancho Cordova, United States, Sacramento, United States, Sacramento, United States, Sacramento, United States and 11 additional locations.

Who is sponsoring the NCT05568719 clinical trial?

NCT05568719 is sponsored by Pfizer. The principal investigator is Pfizer CT.gov Call Center at Pfizer. The trial plans to enroll 173 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology