RecruitingPhase ICTR20232373GPRC5D × CD3-targeting bispecific antibody

GPRC5D × CD3-targeting bispecific antibody · relapsed/refractory multiple myeloma Phase I clinical trial

Official protocol title:A Phase I Clinical Trial of QLS32015 for Injection Evaluating Safety, Tolerability, Pharmacokinetics, Immunogenicity, and Preliminary Efficacy in Patients with Relapsed or Refractory Multiple Myeloma

Updated: 9/7/2026
Target CohortRelapsed/refractory(Synthesized by CMDN from protocol summary; final eligibility confirmed by study doctors)

Trial Summary

This project is a Phase I clinical trial sponsored by Qilu Pharmaceutical Co., Ltd., mainly targeting patients with relapsed or refractory multiple myeloma who have progressed on or are intolerant to all available established therapies (Phase Ib targets patients who have received at least 3 prior lines of therapy). The treatment regimen uses the biological product QLS32015 for Injection (an innovative drug involving T-cell redirection or GPRC5D targeting), administered weekly via subcutaneous injection. The trial is conducted at a total of 11 top domestic hematology hospitals in China, including Tianjin Institute of Hematology (Hospital of Blood Diseases, Chinese Academy of Medical Sciences), The First Affiliated Hospital, Zhejiang University School of Medicine, Sichuan Provincial People's Hospital, Henan Cancer Hospital, and The First Hospital of China Medical University.

Participating Centers2 in China + 9 overseas

Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences
Henan Cancer Hospital
Shandong Cancer Hospital affiliated to Shandong First Medical University
The First Affiliated Hospital of Nanchang University
Sichuan Provincial People's Hospital
福建医科大学附属协和医院
Jiangxi Cancer Hospital
The First Affiliated Hospital, Zhejiang University School of Medicine
Hangzhou First People's Hospital
The Affiliated Hospital of Qingdao University
The First Hospital of China Medical University

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
CTR20232373
Verify on the NMPA CDE public platformby entering CTR20232373 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

QWhich patient group is targeted by this clinical trial?

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.

QWhat are the specific eligibility criteria regarding age, performance status, and prior therapy?

According to verified protocol filings, key eligibility thresholds include: age ≥ 18 years, ECOG performance status ≤ 1, ≥ 3 prior lines of therapy. The study specifies 12 inclusion and 18 exclusion criteria covering detailed organ function and medical history. Final enrollment confirmation is determined by investigators at participating hospital trial centers.

QWhat are the investigational targets and mechanism of action?

The core therapeutic target or investigational mechanism is [GPRC5D × CD3-targeting bispecific antibody]. It aims to selectively eradicate clonal plasma cells or redirect anti-tumor immune responses, representing an active area of precision hematology research.

QWhat clinical phase is this study in?

This study is registered as a [Phase I] clinical trial. The protocol is conducted under rigorous ethical and Good Clinical Practice (GCP) oversight approved by institutional ethics committees.

QWhere are the participating hospital trial centers located?

This is an international multi-centre study with 2 study centres in China and 9 overseas centres. Prominent sites include Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences, Henan Cancer Hospital, Shandong Cancer Hospital affiliated to Shandong First Medical University, among others. Eligible domestic patients can seek screening at the nearest participating centre.

QWhat is the official trial registration code and how can it be verified?

The official public registration identifier for this protocol is [CTR20232373] (CDE_CTR). Patients and researchers can verify registration details and regulatory authorizations directly on the official NMPA CDE platform.

Note for International Patients: Trial centers for this study are located in China. Interventional trials strictly comply with domestic Human Genetic Resources (HGRAC) regulations and standard hospital protocols, which generally restrict enrollment to residents with domestic healthcare identification. International patients seeking approved cellular therapies should review commercial options.

Key Information

Status

Recruiting

Phase

Phase I

Target / Therapy

GPRC5D × CD3-targeting bispecific antibody

Participating Centers

2 in China + 9 overseas

CDE Registry ID

CTR20232373

ClinicalTrials.gov ID

NCT05920876

Trial 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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Keywords

Qilu PharmaceuticalPhase Irelapsed/refractory multiple myeloma (RRMM)QLS32015 for Injectionbiological productGPRC5D targetingT-cell redirectionCTR20232373

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Patient Rights & Safety Assurance

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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