Evaluating QLS32015 for patients with recurrent multiple myeloma

Phase I Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Immunogenicity and Preliminary Effectiveness of QLS32015 Injection in Patients With Relapsed or Refractory Multiple Myeloma

Phase 1 Interventional Qilu Pharmaceutical Co., Ltd. · NCT05920876

This study is testing a new drug called QLS32015 to see if it can safely help people with recurrent multiple myeloma.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorQilu Pharmaceutical Co., Ltd. Industry-sponsored
Locations1 site (Tianjin, Tianjin)
Trial IDNCT05920876 on ClinicalTrials.gov

What this trial studies

This study aims to assess the safety and efficacy of QLS32015, a bispecific antibody targeting GPRC5D and CD3, in patients with relapsed or refractory multiple myeloma. It includes three phases: screening, treatment, and post-treatment follow-up, with a total duration of up to two years. The primary focus is to determine the recommended Phase 2 dose and evaluate the drug's pharmacokinetics and preliminary antitumor activity in this patient population.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with documented relapsed or refractory multiple myeloma and measurable disease.

Not a fit: Patients with active plasma cell leukemia, systemic light chain amyloidosis, or severe mental or medical illnesses may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with difficult-to-treat multiple myeloma.

How similar studies have performed: While this approach is novel, similar studies targeting bispecific antibodies in multiple myeloma have shown promising results.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years old, regardless of gender.
* Subjects should be willing and able to comply with the study schedule and protocols.
* Documented initial diagnosis of multiple myeloma according to International Myeloma Working Group (IMWG) diagnostic criteria.
* Must have measurable disease as defined by the following: Serum M-protein greater than or equal to 1 g/dL; OR Urine M-protein greater than or equal to 200 mg/24 hours; OR Serum free light chain (FLC) assay; involved FLC level greater than or equal to 10 mg/dL provided the serum FLC ratio is abnormal.

Exclusion Criteria:

* Known hypersensitivity to any of the ingredients of this product.
* Diagnosis of active plasma cell leukemia or systemic light chain amyloidosis.
* Has any active severe mental illness, medical illness, or other symptoms/conditions that may affect treatment, compliance, or the ability to provide informed consent, as determined by the investigator.

Where this trial is running

Tianjin, Tianjin

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Relapsed or Refractory Multiple Myeloma
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.