Evaluating a new treatment for congenital protein C deficiency

Special Drug Use Surveillance Study of Ceprotin for Intravenous Injection 1000IU (All-Case Surveillance)

Observational Takeda · NCT06590974

This study is testing a new treatment using a special protein to see if it helps people with congenital protein C deficiency feel better and stay safe over two years.

Quick facts

Study typeObservational
Enrollment7 (estimated)
SexAll
SponsorTakeda Industry-sponsored
Locations1 site (Tokyo, Tokyo)
Trial IDNCT06590974 on ClinicalTrials.gov

What this trial studies

This observational study focuses on the use of Freeze-dried Human Protein C Concentrate (TAK-662) to treat individuals with congenital protein C deficiency. Participants will receive intravenous injections of TAK-662 under routine clinical practice, and the study will monitor for any adverse events and the treatment's effectiveness over a period of up to 24 months. The study is conducted in Japan and aims to gather data on the safety and efficacy of this treatment in real-world settings.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals diagnosed with congenital protein C deficiency who are receiving TAK-662.

Not a fit: Patients who do not have congenital protein C deficiency will not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could improve the management and outcomes for patients with congenital protein C deficiency.

How similar studies have performed: While this approach is being evaluated in this specific context, similar studies have shown promise in treating protein C deficiency with other therapies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

\- All participants with congenital protein C deficiency who are administered with Freeze-dried Human Protein C Concentrate (TAK-662).

Exclusion Criteria:

\- None

Where this trial is running

Tokyo, Tokyo

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Protein C DeficiencyCeprotin/Protein C Deficiency
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.