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Phase III Clinical Trial of STSP-0601 for Injection in Hemophilia Patients

A Phase III Clinical Study on the Efficacy and Safety of STSP-0601 for Injection in Patients With Hemophilia Associated With Inhibitors, With a Multicenter, Open Evaluation Approach

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06922045
Enrollment
40
Registered
2025-04-10
Start date
2025-03-26
Completion date
2027-03-01
Last updated
2026-08-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hemophilia

Brief summary

This study will assess the efficacy of multiple-dose of STSP-0601 for the treatment of bleeding episodes in hemophilia A or B patients with inhibitor

Interventions

Evaluation of the Efficacy of Single-Dose and Continuous Administration of STSP-0601 Injection for the Treatment of Bleeding in Patients with Hemophilia A or B with Inhibitors

Sponsors

Jiangsu BioJeTay Biotechnology Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

1. 12 ≤age≤70 years of age. 2. Hemophilia A or B patients. 3. Peak historical inhibitor titer ≥ 5 BU and a positive inhibitor test when enrolled. 4. Establish proper venous access. 5. There were at least 3 bleeding events that required treatment occurred in the past 6 months before screening. 6. Agree to use adequate contraception to avoid pregnancy. 7. Provide signed informed consent.

Exclusion criteria

1. Have any coagulation disorder other than hemophilia. 2. Plan to receive prophylactic treatment of coagulation factor during the trail. 3. Patients plan to receive Emicizumab during the trial. 4. Patients received anticoagulant or antifibrinolytic therapy 7 days before the first administration or plan to receive these drugs during the trial. 5. Have a history of arterial and/or venous thrombotic events. 6. Platelet \<100×109/L. 7. Hemoglobin\<90g/L. 8. Severe liver or kidney disease. 9. Severe bleeding event occurred within 4 weeks before the first administration. 10. Accepted major operation or blood transfusion within 4 weeks before the first administration. 11. Have a known allergy to STSP-0601. 12. Pregnant, lactating, or blood pregnancy test positive female subjects 13. Participate in other clinical research within 4 weeks before enrollment (except for participating in prothrombin complex, FVII, FVIIa, FVIII, FIX trails). 14. Within 1 day before the first administration, FVII, FVIIa, tranexamic acid, and aminocaproic acid were used. Within 3 days before the first administration, prothrombin complex, FVIII, and FIX were used. Within 4 weeks, treatment with Emicizumab was received. 15. Patients not suitable for the trail according to the judgment of the investigators.

Design outcomes

Primary

MeasureTime frame
12 hours effective hemostasis rate12 hours after the first administration

Secondary

MeasureTime frame
Rescue treatment rateWithin 72 hours after the last administration
The time from the onset of bleeding to complete/significant reliefWithin 72 hours after the last administration
The effective hemostasis rate of the target jointFrom 12 hours after the first administration to 72 hours after the last administration
8-hours excellent + good rate8 hours after the first administration
Complete + significant relief rate4 hours, 8 hours, 12 hours, 24 hours after the first administration
8-hours effective hemostasis rate8 hours after the first administration
Effective hemostasis rate at the first 12 hours bleeding visit12 hours after the first administration
12 hours excellent + good rate12 hours after the first administration
The number of medication required for effective hemostasis within 12 hours12 hours after the first administration
The time to achieve complete/significant remission after the first administrationFrom the time after the first administration until within 72 hours after the last administration
The amount of medication (U/kg) required for effective hemostasis within 12 hours12 hours after the first administration

Countries

China

Contacts

PRINCIPAL_INVESTIGATORLei Zhang, Ph.D

Hospital of Hematology, Chinese Academy of Medical Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 13, 2026