- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT07710248
SG301-SC Injection Safety Study in Subjects With Primary ITP Patients
A Randomized, Double-Blind, Placebo-Controlled Phase 2 Clinical Study to Evaluate the Safety and Efficacy of SG301 SC Injection in Patients With Primary Immune Thrombocytopenia
This is a multicenter, randomized, double-blind, placebo-controlled Phase II clinical study. The primary objective is to evaluate the safety and efficacy of SG301 SC Injection in participants with ITP, while the secondary objectives are to assess the pharmacokinetic, pharmacodynamic and immunogenicity profiles of SG301 SC Injection in ITP participants.
A total of 60 ITP participants are planned to be enrolled in this study and randomly assigned at a 1:1:1 ratio to the low dose group, high dose group and placebo group, with approximately 20 participants per group. All participants enrolled in this study may receive concomitant background therapies at stable doses for at least 4 weeks prior to the first study drug administration, and is expected to be maintained throughout the study period.
연구 개요
상태
연구 유형
등록 (추정된)
단계
- 2 단계
연락처 및 위치
연구 연락처
- 이름: Songping Ao
- 전화번호: 86-0571-86035537
- 이메일: aosongping@sumgenbio.com
연구 장소
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Fujian
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Fuzhou, Fujian, 중국, 350001
- 모병
- Fujian Medical University Union Hospital
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연락하다:
- Fenge Yang, Doctor
- 이메일: 339694677@qq.com
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Henan
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Pingdingshan, Henan, 중국, 467000
- 모병
- Pingdingshan First People's Hospital
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연락하다:
- Zhanfang Wang, Doctor
- 이메일: WZF3922031@163.com
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Shandong
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Jining, Shandong, 중국, 272011
- 모병
- Jining No.1 People's Hospital
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연락하다:
- Yuan Xu, Doctor
- 이메일: likai0111@163.com
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Tianjin Municipality
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Tianjin, Tianjin Municipality, 중국, 300020
- 모병
- Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences
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연락하다:
- Lei Zhang, Doctor
- 전화번호: 86-022-23608031
- 이메일: zlpumc@hotmail.com
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연락하다:
- Yunfei Chen, Doctor
- 전화번호: 86-022-23608031
- 이메일: zlpumc@hotmail.com
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Zhejiang
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Wenzhou, Zhejiang, 중국, 325000
- 모병
- The First Affiliated Hospital of Wenzhou Medical University
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연락하다:
- Songfu Jiang, Doctor
- 이메일: Jiangsongfu@189.cn
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참여기준
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
설명
Inclusion Criteria:
- Aged 18-75 years, any gender.
- Voluntarily signed informed consent and able to comply with study procedures.
- Clinically diagnosed with primary immune thrombocytopenia (ITP) per 2019 ASH Guidelines, international consensus statements, or 2025 Chinese Guidelines for Adult ITP Diagnosis and Treatment; disease duration ≥ 3 months.
- Experienced treatment failure or relapse after prior first-line therapy (glucocorticoids and/or IVIG).
- ≥2 platelet assessments ≥3 days apart before first dosing: mean platelet count <30×10⁹/L, no single value >35×10⁹/L.
- ECOG performance status 0-2.
- On stable-dose maintenance therapy for ≥4 weeks pre-first dose, with stability expected throughout the trial.
Screening lab parameters meeting criteria below:
- Liver function: AST and ALT ≤3×ULN; total bilirubin ≤1.5×ULN.
- Renal function: eGFR ≥30 mL/min (CKD-EPI equation).
- CBC (no RBC transfusions, IL-11, EPO or colony-stimulating factors within 2 weeks before testing): hemoglobin ≥90 g/L, absolute neutrophil count ≥1.5×10⁹/L.
- Participants or partners with childbearing potential must use effective contraception during the study and for 6 months after last study drug administration.
Exclusion Criteria:
- Prior treatment targeting CD38, including but not limited to monoclonal antibodies, bispecific antibodies and antibody-drug conjugates.
- Secondary thrombocytopenia or concurrent autoimmune hemolytic anemia.
- History of thromboembolism within 12 months prior to randomization, or severe bleeding events (hemoptysis, massive gastrointestinal hemorrhage, intracranial hemorrhage, etc.).
- Anticoagulants or antiplatelet agents (e.g., aspirin) administered within 4 weeks before randomization.
- Emergency ITP therapies (methylprednisolone, platelet transfusion, IVIG, TPO-RA, etc.) received within 4 weeks before randomization.
- Oral immunosuppressants other than azathioprine, cyclosporine A and mycophenolate mofetil (e.g., tacrolimus, sirolimus) within 4 weeks pre-randomization; anti-CD20 mAbs (e.g., rituximab) within 3 months pre-randomization.
- Splenectomy performed within 6 months before randomization.
- Diagnosis of myelodysplastic syndrome; history of malignancy within 5 years pre-randomization (excluding cervical carcinoma in situ, basal cell skin carcinoma, etc.).
- Participation in another clinical trial within 4 weeks or 5 half-lives pre-randomization (whichever is longer), except placebo-controlled trials.
- History of severe recurrent or chronic infection; active systemic infection requiring IV antibiotics, antivirals, antiparasitics or antifungals within 4 weeks pre-randomization (excluding prophylaxis); acute infection; superficial skin infection within 1 week pre-randomization.
- Major surgery within 12 weeks pre-randomization, unhealed wounds, ulcers or fractures, or planned major surgery during the study.
- Severe cardiovascular or cerebrovascular diseases, including but not limited to: myocardial infarction, unstable angina or stroke within 6 months pre-randomization; NYHA Class III/IV heart failure; screening QTcF >480 ms or familial long QT syndrome; uncontrolled hypertension (resting SBP ≥160 mmHg and/or DBP ≥95 mmHg).
- HIV infection, active hepatitis B or hepatitis C.
- Confirmed active syphilis or Mycobacterium tuberculosis infection.
- Known hypersensitivity to monoclonal antibodies (prior Grade ≥3 allergic reactions per CTCAE v6.0) or excipients of investigational product.
- Live or attenuated live vaccines administered within 4 weeks pre-randomization or planned during the study.
- History of solid organ transplantation (heart, lung, kidney, liver, etc.) or hematopoietic stem cell/bone marrow transplantation.
- Lactating females.
- Any condition judged by the investigator to interfere with subject compliance or trial participation.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 삼루타
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: SG301 SC Injection-low dose group
SG-301 SC monotherapy Weekly dosing for 8 doses
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SG301 SC weekly for a total of 8 doses
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실험적: SG301 SC Injection-high dose group
SG-301 SC monotherapy Weekly dosing for 8 doses
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SG301 SC weekly for a total of 8 doses
|
|
위약 비교기: SG301 SC Placebo
Placebo SC monotherapy Weekly dosing for 8 doses
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SG301 SC Placebo weekly for a total of 8 doses.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Incidence of Treatment-Emergent Adverse Events
기간: up to 24 weeks
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Number and percentage of AEs which is calculated by worst CTCAE grade by CTCAE 6
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up to 24 weeks
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ORR
기간: at Week 8 of treatment
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Overall platelet response rate
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at Week 8 of treatment
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공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- CSG-301 SC-206
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
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