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A Study in Participants With Relapsed or Refractory Multiple Myeloma for QLS4131

6. november 2026 opdateret af: Qilu Pharmaceutical Co., Ltd.

A Phase 3 Randomized Study Comparing QLS4131 Injection Versus Treatment Per Investigator's Choice in Participants With Relapsed or Refractory Multiple Myeloma

The purpose of this clinical trial is to evaluate the efficacy and safety of QLS4131 compared with the investigator's choice regimen (DPd or PVd) in participants with relapsed or refractory multiple myeloma (RRMM).

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This study is an open, multicenter, randomized controlled phase III clinical trial aimed at evaluating the efficacy and safety of QLS4131 compared to the investigator's choice regimen (DPd or PVd) in participants with relapsed or refractory multiple myeloma who have previously received 1-4 lines of therapy and have been exposed to three classes of drugs (proteasome inhibitors, immunomodulators, and anti-CD38 monoclonal antibodies). The plan is to enroll approximately 300 participants, who will be randomly assigned to the experimental group and the control group in a 1:1 ratio. Approximately 150 participants in the experimental group will receive QLS4131 treatment, while about 150 participants in the control group will receive the investigator's choice of treatment (DPd or PVd).

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

300

Fase

  • Fase 3

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: LUGUI QIU, Doctor of Medicine (MD)
  • Telefonnummer: 022-23608124
  • E-mail: qiulg@ihcams.ac.cn

Undersøgelse Kontakt Backup

  • Navn: GANG AN, Doctor of Medicine (MD)
  • Telefonnummer: 13502181109
  • E-mail: angang@ihcams.ac.cn

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Age ≥18 years.
  • Documented initial diagnosis of multiple myeloma according to IMWG diagnostic criteria.
  • At least one of the following measurable disease indicators:
  • Serum M-protein ≥ 5 g/L
  • Urine M-protein ≥200 mg/24h
  • Serum free light chain (FLC) test: affected FLC level ≥100 mg/L and abnormal serum FLC ratio.
  • Received 1-4 prior lines of therapy, including a proteasome inhibitor (PI), an immunomodulatory drug, and an anti-CD38 monoclonal antibody (mAb).
  • Willing and able to comply with the prohibitions and restrictions specified in this protocol.

Exclusion Criteria:

  • Prior treatment with both the BCMA-targeted therapy and the GPRC5D-targeted therapy. Patients who have received either BCMA-targeted or GPRC5D-targeted therapy alone are eligible.
  • Known hypersensitivity to any of the ingredients of investigational drug.
  • Diagnosis of plasma cell leukemia(peripheral blood plasma cells ≥5%),or primary light chain amyloidosis.
  • Known active central nervous system (CNS) involvement, or clinical signs and symptoms suggestive of meningeal involvement by multiple myeloma.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: QLS4131

Participants will receive QLS4131 injection until death, disease progression, initiation of new anti-tumor therapy, withdrawal of informed consent to participate in the study, or other reasons for discontinuation of study treatment, whichever occurs first.

QLS4131 will be administered subcutaneously.

Aktiv komparator: The investigator's choice regimen (DPd or PVd )

Participants will receive DPd or PVd until death, disease progression, initiation of new anti-tumor therapy, withdrawal of informed consent to participate in the study, or other reasons for discontinuation of study treatment, whichever occurs first.

The DPd treatment regimen, one cycle every 28 days: Pomalidomide 4mg/d orally, on days 1-21;The PVd treatment regimen, one cycle every 21 days: Pomalidomide 4 mg/d orally, on days 1-14 of each treatment cycle.

The PVd treatment regimen, with one cycle every 21 days: Bortezomib on days 1, 4, 8, and 11 of cycles 1-8, and on days 1 and 8 from cycle 9 onwards.

The DPd treatment regimen, one cycle every 28 days: on days 1, 8, 15, and 22 of cycles 1 and 2; on days 1 and 15 from cycles 3-6; and on day 1 from cycle 7 onwards.

The DPd treatment regimen, one cycle every 28 days: Dexamethasone 20 mg orally, on days 1, 2, 8, 9, 15, 16, 22, and 23 (total 40 mg per week).

The PVd treatment regimen, one cycle every 21 days: Dexamethasone 20 mg orally, on days 1, 2, 4, 5, 8, 9, 11, and 12 of cycles 1-8, and on days 1, 2, 8, and 9 from cycle 9 onwards.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
PFS assessed by independent review committee
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

PFS is defined as the duration from the date of randomization to either PD or death, whichever comes first. Disease progression will be determined according to the IMWG 2016 response criteria.

up to 2 years after the last enrolled participant receives the first dose of study drug

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
PFS assessed by investigator
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

PFS is defined as the duration from the date of randomization to either PD or death, whichever comes first. Disease progression will be determined according to the IMWG 2016 response criteria.

up to 2 years after the last enrolled participant receives the first dose of study drug
Very good partial response or better rate
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

Very good partial response or better rate is defined as the percentage of participants who achieve very good partial response or better prior to subsequent antimyeloma therapy in accordance with the IMWG 2016 response criteria.

up to 2 years after the last enrolled participant receives the first dose of study drug
Negativity rate of minimal residual disease (MRD)
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

Defined as the proportion of participants achieving MRD-negative status.

up to 2 years after the last enrolled participant receives the first dose of study drug
Sustained MRD negativity rate
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

Defined as the proportion of participants achieving MRD-negative status and maintaining it for at least 1 year.

up to 2 years after the last enrolled participant receives the first dose of study drug
6-month MRD negativity rate
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

The proportion of participants achieving a response of CR or better and MRD-negative status at 6 months post-randomization.

up to 2 years after the last enrolled participant receives the first dose of study drug
12-month MRD negativity rate
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

The proportion of participants achieving a response of CR or better and MRD-negative status at 12 months post-randomization.

up to 2 years after the last enrolled participant receives the first dose of study drug
Objective response rate
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

Objective response rate is defined as the percentage of participants who achieve PR or better prior to subsequent antimyeloma therapy in accordance with the IMWG 2016 response criteria.

up to 2 years after the last enrolled participant receives the first dose of study drug
Complete response or better rate
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

Complete response or better rate is defined as the percentage of participants who achieve CR or better prior to subsequent antimyeloma therapy in accordance with the IMWG 2016 response criteria.

up to 2 years after the last enrolled participant receives the first dose of study drug
Duration of response
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

DoR is defined as the time interval between the date of initial documentation of a response (PR or better) to the date of first documented evidence of progressive disease according to the IMWG 2016 response criteria or death from any cause.

up to 2 years after the last enrolled participant receives the first dose of study drug
PFS Rate at 6, 12, and 18 Months
Tidsramme: 6, 12, and 18 months after randomization

Percentage of participants who remain alive and progression-free at 6, 12, and 18 months after randomization, as assessed by both the independent review committee (IRC) and the investigator according to IMWG 2016 response criteria.

6, 12, and 18 months after randomization
Overall survival
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

OS is defined as the time from the date of randomization to the date of the participant's death due to any cause.

up to 2 years after the last enrolled participant receives the first dose of study drug
OS Rate at 12 and 24 Months
Tidsramme: 12 and 24 months after randomization

Percentage of participants who remain alive at 12 and 24 months after randomization.

12 and 24 months after randomization
Number of Participants with Treatment-Emergent Adverse events (TEAE) by Severity
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

Number of participants with AEs by Severity will be reported.

up to 2 years after the last enrolled participant receives the first dose of study drug
Change from Baseline in Symptoms, Functioning, and Overall Health-related Quality of Life (HRQoL) as Assessed by European Organization for Research and Treatment of Cancer Quality-of-life Questionnaire Core 30 (EORTC-QLQ-C30)
Tidsramme: up to 2 years after the last enrolled participant receives the first dose of study drug

Change from baseline scores

up to 2 years after the last enrolled participant receives the first dose of study drug

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

30. december 2026

Primær færdiggørelse (Anslået)

14. december 2029

Studieafslutning (Anslået)

21. maj 2030

Datoer for studieregistrering

Først indsendt

6. november 2026

Først indsendt, der opfyldte QC-kriterier

6. november 2026

Først opslået (Faktiske)

12. november 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

6. november 2026

Sidst verificeret

1. november 2026

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