Safety and Efficacy of STSP-0601 in Adult Patients with Hemophilia a or B with Inhibitor

January 17, 2025 updated by: Staidson (Beijing) Biopharmaceuticals Co., Ltd

A Multi-center, Open-label, Phase Ⅱb Trial to Evaluate the Safety and Efficacy of STSP-0601 for Injection in Patients with Hemophilia with Inhibitor

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

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
25

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Anhui
      • Hefei, Anhui, China, 230000
        • Anhui Provincial Hospital
    • Chongqing
      • Chongqing, Chongqing, China, 400000
        • The Second Affiliated Hospital of Chongqing Medical University
    • Fujian
      • Fuzhou, Fujian, China, 350005
        • Fujian Medical University Affiliated Union Medical College Hospital
    • Gansu
      • Lanzhou, Gansu, China, 730000
        • Lanzhou University First Hospital
    • Guangdong
      • Guangzhou, Guangdong, China, 510000
        • Southern Medical University Southern Hospital
      • Shenzhen, Guangdong, China, 518000
        • Shenzhen Second People's Hospital
    • Guizhou
      • Guiyang, Guizhou, China, 550000
        • Guizhou Medical University Affiliated Hospital
    • Heilongjiang
      • Harbin, Heilongjiang, China, 150000
        • Harbin First Hospital Hematology Tumor Research Center
    • Henan
      • Zhengzhou, Henan, China, 450000
        • Henan Cancer Hospital
    • Hunan
      • Changsha, Hunan, China, 410000
        • Xiangya Hospital of Central South University
    • Jiangsu
      • Nanjing, Jiangsu, China, 210000
        • Nanjing University School of Medicine Affiliated Gulou Hospital
    • Jiangxi
      • Nanchang, Jiangxi, China, 330038
        • The First Affiliated Hospital of NanChang University
    • Jilin
      • Changchun, Jilin, China, 130000
        • The First Hospital of Jilin University
    • Liaoning
      • Shenyang, Liaoning, China, 110000
        • Shengjing Hospital affiliated to China Medical University
    • Shandong
      • Qingdao, Shandong, China, 266000
        • Affiliated Hospital of Qingdao University
    • Shanghai
      • Shanghai, Shanghai, China, 200000
        • Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
    • Shanxi
      • Xi'an, Shanxi, China, 710000
        • Xi'an Central Hospital
    • Sichuan
      • Chengdu, Sichuan, China, 610000
        • West China Hospital of Sichuan University
    • Tianjin
      • Tianjin, Tianjin, China, 300020
        • Hospital of Hematology, Chinese Academy of Medical Sciences
    • Yunnan
      • Kunming, Yunnan, China, 650000
        • The Second Affiliated Hospital of Kunming Medical University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. 18 ≤age≤70 years of age,male.
  2. Hemophilia A or B patients. (No less than 3 patients with hemophilia B)
  3. Peak historical inhibitor titer ≥ 5 BU and apositive inhibitor test when enrolled.
  4. Establish proper venous access.
  5. There were at least 3 bleeding events that requiring treatment occurred in the past 6 months before screening (Only applicable to the on-demand treatment stage).
  6. Agree to use adequate contraception to avoid pregnancy. Agree not to donate sperm or eggs.
  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 enrollment or plan to receive these drugs during the trial.Patients received anticoagulation therapy (such as coagulation factor replacement therapy, prothrombin complex, plasma, etc.) 7 days before enrollment.
  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 enrollment.
  10. Accepted major operation or blood transfusion within 4 weeks before enrollment.
  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 prior to enrollment, FVII, FVIIa, tranexamic acid, and aminocaproic acid were used. Within 3 days prior to enrollment, prothrombin complex, FVIII, and FIX were used. Within 4 weeks prior to enrollment, treatment with amisulumab was received.
  15. Patients not suitable for the trail according to the judgment of the investigators.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Consecutive doses of STSP-0601
Drug: STSP-0601 for Injection
A Multiple-dose Design to Evaluate the Safety, Tolerability and Efficacy of STSP-0601 for Injection in hemophilia A or B patients with inhibitor.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Proportion of successfully treated bleeding episodes
Time Frame: 12 hours after first administration of study drug
12 hours after first administration of study drug

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Proportion of successfully treated bleeding episodes
Time Frame: 8 hours after first administration of study drug
8 hours after first administration of study drug
Proportion of successfully treated first bleeding episodes
Time Frame: 12 hours after first administration of study drug
12 hours after first administration of study drug
Excellent + good rate of treated bleeding episodes
Time Frame: 12 hours after first administration of study drug

Excellent: Pain and Symptoms of bleed (e.g., swelling, tenderness, and decreased range of motion in the case of musculoskeletal haemorrhage) had fully eased. No additional infusion of study drug was required.

Good: Symptoms of bleed (e.g., swelling, tenderness, and decreased range of motion in the case of musculoskeletal haemorrhage) had largely eased , but had not completely disappeared. No additional infusion of study drug was required.
12 hours after first administration of study drug
Excellent + good rate of treated bleeding episodes
Time Frame: 8 hours after first administration of study drug

Excellent: Pain and Symptoms of bleed (e.g., swelling, tenderness, and decreased range of motion in the case of musculoskeletal haemorrhage) had fully eased. No additional infusion of study drug was required.

Good: Symptoms of bleed (e.g., swelling, tenderness, and decreased range of motion in the case of musculoskeletal haemorrhage) had largely eased , but had not completely disappeared. No additional infusion of study drug was required.
8 hours after first administration of study drug
Number of doses required for effective hemostasis
Time Frame: 12 hours after first administration of study drug
12 hours after first administration of study drug
Proportion of bleeding episodes received salvage treatment
Time Frame: 24 hours after first administration of study drug
24 hours after first administration of study drug
Time to complete/significant remission from first dose
Time Frame: 72 hours after last administration of study drug
72 hours after last administration of study drug
Time to complete/significant remission from haematogenesis
Time Frame: 72 hours after last administration of study drug
72 hours after last administration of study drug
Proportion of successfully treated Target joint bleeding episodes
Time Frame: 12 hours after first administration of study drug
12 hours after first administration of study drug

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Staidson (Beijing) Biopharmaceuticals Co., Ltd

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Lei Zhang, Ph.D, Hospital of Hematology, Chinese Academy of Medical Sciences

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 18, 2024

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 17, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 17, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 23, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 23, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 1, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 17, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • STSP-0601-04

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Conditions

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