A Study Comparing QLS32015 Monotherapy Versus Pomalidomide, Dexamethasone (Pd) or Selinexor, Dexamethasone (Sd) in Participants With Relapsed or Refractory Multiple Myeloma

Summary

The purpose of this study is to compare the safety and efficacy of QLS32015 with Pd/Sd for the treatment of relapsed or refractory multiple myeloma.

Eligibility

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 0.5 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.
* Received at least 3 prior lines of therapy, including a proteasome inhibitor (PI), an immunomodulatory drug, and an anti-CD38 monoclonal antibody (mAb).

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.
* Disease is considered refractory to pomalidomide and selinexor.

Conditions2

Interventions4

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