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

6. november 2026 oppdatert av: 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).

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert 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).

Studietype

Intervensjonell

Registrering (Antatt)

300

Fase

  • Fase 3

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

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

Studer Kontakt Backup

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

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: 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.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
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
Tiltaksbeskrivelse
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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

30. desember 2026

Primær fullføring (Antatt)

14. desember 2029

Studiet fullført (Antatt)

21. mai 2030

Datoer for studieregistrering

Først innsendt

6. november 2026

Først innsendt som oppfylte QC-kriteriene

6. november 2026

Først lagt ut (Faktiske)

12. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

12. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

6. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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