Novel bispecific antibody targeting BCMA · relapsed/refractory multiple myeloma Phase Ib/II clinical trial
Official protocol title:An Open-Label, Multicenter Phase Ib/II Clinical Trial Evaluating the Safety, Pharmacokinetics, Immunogenicity, and Preliminary Efficacy of GR1803 Injection in Combination with an Anti-CD38 Monoclonal Antibody in Participants with Relapsed/Refractory Multiple Myeloma (RRMM) Who Have Received at Least 1 Prior Line of Therapy (Including Lenalidomide and a Proteasome Inhibitor)
Trial Summary
This study is a Phase Ib/II clinical trial sponsored by Chongqing Zhixiang Jintai Biological Pharmacy Co., Ltd., mainly targeting patients with relapsed/refractory multiple myeloma (RRMM) who have received at least 1 prior line of therapy (which must include lenalidomide and a proteasome inhibitor) and have not received prior BCMA-targeted therapy. The treatment regimen consists of an innovative biologic product (GR1803 Injection) combined with an anti-CD38 monoclonal antibody (subcutaneous daratumumab / Darzalex Faspro), administered regularly until disease progression or up to 2 years (whichever occurs first). The trial is currently being conducted across a total of 3 core hospitals in China: The First Affiliated Hospital of Xi'an Jiaotong University, Shanghai Fourth People's Hospital Affiliated to Tongji University, and Xiangya Hospital Central South University.
Participating Centers0 in China + 3 overseas
Source and Verification
Every fact on this page is derived from the official study protocol document below. The source document is archived as a PDF for direct verification.
- Document type
- CDE clinical trial registration filing (original PDF)
- Official registration number
- CTR20252876
- Verify on the NMPA CDE public platformby entering CTR20252876 in the registration-number field. The platform is a search interface with no permanent per-study URL, so a direct link is not possible.
- Last reconciled
- 2026-09-07
Frequently Asked Questions about this Study
Structured facts derived from official protocol filings for patient and family reference
According to official protocol filings (target population synthesized by CMDN from study details, not an official CDE field), this study is primarily designed for patients with [Relapsed/refractory]. Eligibility requires verified clinical confirmation by investigators regarding prior lines of therapy, active disease biomarkers, and performance status.
According to verified protocol filings, key eligibility thresholds include: age ≥ 18 years, ECOG performance status ≤ 2, ≥ 1 prior lines of therapy. The study specifies 6 inclusion and 22 exclusion criteria covering detailed organ function and medical history. Final enrollment confirmation is determined by investigators at participating hospital trial centers.
The core therapeutic target or investigational mechanism is [Novel bispecific antibody targeting BCMA (GR1803)]. It aims to selectively eradicate clonal plasma cells or redirect anti-tumor immune responses, representing an active area of precision hematology research.
This study is registered as a [Phase Ib/II] clinical trial. The protocol is conducted under rigorous ethical and Good Clinical Practice (GCP) oversight approved by institutional ethics committees.
This is an international multi-centre study with 0 study centres in China and 3 overseas centres. The lead institution is [The First Affiliated Hospital of Xi'an Jiaotong University]. Prominent sites include The First Affiliated Hospital of Xi'an Jiaotong University, Shanghai Fourth People's Hospital Affiliated to Tongji University, Xiangya Hospital Central South University. Eligible domestic patients can seek screening at the nearest participating centre.
The official public registration identifier for this protocol is [CTR20252876] (CDE_CTR). Patients and researchers can verify registration details and regulatory authorizations directly on the official NMPA CDE platform.
Key Information
Status
Recruiting
Phase
Phase Ib/II
Target / Therapy
Novel bispecific antibody targeting BCMA (GR1803)
Sponsor
Chongqing Zhixiang Jintai Biological Pharmacy Co., Ltd.
Principal Investigator
Pengcheng He
Lead Institution
The First Affiliated Hospital of Xi'an Jiaotong University
Participating Centers
0 in China + 3 overseas
CDE Registry ID
CTR20252876
ClinicalTrials.gov ID
NCT07090954Trial information is translated from the Chinese source record and reviewed by CMDN. Confirm current status and eligibility with the study team.
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Protocol drugs and related tests are fully covered by the sponsor. All studies are strictly supervised by ethics committees, and patients retain the legal right to withdraw at any time.
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