Study of Recombinant Human Coagulation Factor VIII-Fc Fusion Protein (FRSW107) as Prophylactic Treatment.
A Single-Arm, Open-Label, Multicenter Phase III Clinical Study Evaluating the Efficacy, Safety, Immunogenicity and Pharmacokinetics of Recombinant Human Coagulation Factor VIII-Fc Fusion Protein (FRSW107) as Prophylactic Therapy in Patients With Severe Hemophilia A (Adults and Adolescents)
1 other identifier
interventional
60
1 country
19
Brief Summary
The indication for this product is to control and prophylaxis in patients with Hemophilia A (congenital Factor VIII deficiency): The Primary Objective: To evaluate the efficacy of Recombinant Human Coagulation Factor VIII-Fc Fusion Protein for Injection (FRSW107) for prophylactic treatment in previously treated patients with severe Hemophilia A. Secondary Objectives: To evaluate the health-related quality of life, pharmacokinetic (PK) profiles, safety and immunogenicity of Recombinant Human Coagulation Factor VIII-Fc Fusion Protein for Injection (FRSW107) for prophylactic treatment in previously treated subjects with severe Hemophilia A.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Jun 2026
Shorter than P25 for phase_3
19 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 12, 2026
CompletedFirst Submitted
Initial submission to the registry
June 16, 2026
CompletedFirst Posted
Study publicly available on registry
July 6, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 9, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 21, 2027
July 6, 2026
June 1, 2026
9 months
June 16, 2026
June 29, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
ABR
Annual rate of bleeding (ABR) during preventive treatment = Number of bleeding episode during the efficacy evaluation period/(number of treatment days /365.25)
6 months
Secondary Outcomes (19)
Safety Evaluation
6 months
Immunogenicity Evaluation
6 months
Peak activity (Cmax)
At Visit 1 (Day 0 through Day 4) and Visit 5 (Day 160 through Day 164).
Effective rate of hemostatic treatment
6 months
Annualized rate of spontaneous bleeds and annualized rate of traumatic bleeds.
6 months
- +14 more secondary outcomes
Study Arms (1)
prophylactic treatment
EXPERIMENTALSubjects in PK Subgroup receive a single and multiple dose of 50 IU/kg FRSW107 at Visit 1 and Visit 5, respectively. PK samples will be collected up to 72 hours after the start of administration.After completion of PK blood sampling for the first dose and prior to availability of the corresponding PK data, subjects may continue prophylactic treatment with FRSW107 at a dose of 50 IU/kg every 3 days until their PK data are obtained.Once the first-dose PK data of a subject are available, individualized prophylactic treatment with FRSW107 will be implemented based on the PK results. On the premise of maintaining a trough FVIII activity level of ≥1%, the investigator will determine the appropriate individualized prophylactic regimen for the subject. The recommended prophylactic dosing interval is Q3D, with an optional dose range of 25-50 IU/kg. For subjects in the non-PK subgroup, the investigator will select the initial prophylactic dose within the recommended range of 25-50 IU/kg.
Interventions
For subjects in the PK subgroup: they will receive a dose of 50 IU/kg at the first dose visit 1 to obtain preliminary pharmacokinetic (PK) data. After assessment by the investigator, individualized prophylactic treatment (25\~50 IU/kg, Q3D) will be administered to maintain the trough concentration of FVIII activity at ≥1%. For subjects not in the PK subgroup: they will receive prophylactic treatment at a dose of 25\~50 IU/kg once every three days. If a subject experiences a breakthrough bleeding episode requiring treatment, the investigator shall determine the appropriate dosage (recommended dose range: 20\~50 IU/kg) and administration frequency.
Eligibility Criteria
You may qualify if:
- ≤ age ≤65 year-old men; 2.Subjects with clinically confirmed severe hemophilia A, i.e. at screening (central laboratory testing) or previous medical records confirm: FⅧ activity \< 1%; 3.Previous documented treatment with any recombinant and/or blood-derived coagulation factor Ⅷ products or cryoprecipitation products and dosed ≥150 exposure days (EDs≥150) ; 4.Normal prothrombin time (PT) or International Normalized Ratio (INR)\<1.3; 5.Bleeding events were recorded in detail for at least 6 months prior to screening; 6.Fully understand and know about this study and sign informed consent to participate in the clinical study voluntarily, subject and/or their guardian can cooperate with them for bleeding treatment at home, and have the ability to complete all study procedures
You may not qualify if:
- Known or suspected allergy to the investigational drug or its excipients, including mouse or hamster proteins;
- Hypersensitivity or anaphylaxis after FⅧ or IgG2 injection in the past;
- FⅧ inhibitor positive (≥0.6 BU/mL) during the screening period, or have a history of FⅧ inhibitor positive in the past, or a family history of FⅧ inhibitor positive;
- Von Willebrand factor (vWF) antigen test results were lower than the lower limit of normal value;
- Severe anemia at the screening stage (hemoglobin \< 60 g/L);
- Platelet count during screening period \< 100×109 /L;
- Abnormal liver function: Alanine aminotransferase (ALT), or aspartate aminotransferase (AST) \>3 times upper limit of normal (ULN); or Serum total bilirubin (TBIL) \>1.5x ULN;
- Subjects with abnormal renal function: Creatinine clearance (Ccr) \<50 ml/min (according to Cockcroft and Gault formula); or Serum creatinine (Cr) \>1.5x ULN;
- Subjects with active hepatitis C, that is, hepatitis C virus (HCV) antibody positive and HCV RNA positive; Or anti-treponema pallidum specific antibody (TPHA) positive; Or positive for antibodies against the human immunodeficiency virus (HIV);
- Subjects with coagulation dysfunction other than hemophilia A;
- Have a medical condition that may increase the risk of bleeding;
- A history of drug or alcohol abuse;
- Have a known mental disorder that may affect trial compliance;
- Subjects who have received transfusions of blood or blood components within 4 weeks prior to screening;
- Participants who had participated in other Interventional clinical trials within 1 month before screening;
- +12 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (19)
Institute of Hematology & Blood Diseases Hospital Chinese Academy of Medical Sciences & Peking Union Medical College
Tianjin, Tianjin Municipality, China
Fuyang Hospital, Affiliated to Anhui Medical University
Fuyang, China
Fujian Medical University Union Hospital
Fuzhou, China
Nanfang Hospital of Southern Medical University
Guangzhou, China
Anhui Provincial Hospital
Hefei, China
Jinan central hospital
Jinan, China
The Second Affiliated Hospital of Kunming Medical University
Kunming, China
The First Affiliated Hospital of Guangxi Medical University
Nanning, China
Affiliated Hospital of Nantong University
Nantong, China
The First Affiliated Hospital of Nanyang Medical College
Nanyang, China
Qinghai Provincial People's Hospital
Qinghai, China
The Second Hospital of Shanxi Medical University
Taiyuan, China
North China University of Science and Technology Affiliated Hospital
Tangshan, China
Wenzhou People's Hospital
Wenzhou, China
Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology.
Wuhan, China
Affiliated Hospital of Jiangnan University
Wuxi, China
Xi'an Central Hospital
Xi'an, China
Henan Cancer Hospital
Zhengzhou, China
Zhengzhou People's Hospital
Zhengzhou, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Renchi Yang, PhD
Institute of Hematology & Blood Diseases Hospital Chinese Academy of Medical Sciences & Peking Union Medical College.
Central Study Contacts
Renchi Yang, PhD
CONTACT
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 16, 2026
First Posted
July 6, 2026
Study Start
June 12, 2026
Primary Completion (Estimated)
March 9, 2027
Study Completion (Estimated)
June 21, 2027
Last Updated
July 6, 2026
Record last verified: 2026-06