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A Study to Evaluate the Safety and Efficacy of SCTB35 in Combination With Gemcitabine and Oxaliplatin in Patients With Relapsed or Refractory Diffuse Large B-Cell Lymphoma

11. august 2026 oppdatert av: Sinocelltech Ltd.

A Phase 3 Randomized, Open-label, Multicenter Study to Evaluate the Safety and Efficacy of SCTB35 in Combination With Gemcitabine and Oxaliplatin Versus Rituximab in Combination With Gemcitabine and Oxaliplatin in Patients With Relapsed or Refractory Diffuse Large B-Cell Lymphoma

The purpose of this study is to evaluate the efficacy and safety of SCTB35 in Combination With Gemcitabine and Oxaliplatin vs Rituximab in Combination With Gemcitabine and Oxaliplatin in Patients With Relapsed or Refractory Diffuse Large B-Cell Lymphoma.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

101

Fase

  • Fase 3

Kontakter og plasseringer

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

Studiesteder

  • Kina
      • Beijing, Kina, 100142
        • Rekruttering
        • Beijing Cancer Hospital
        • Ta kontakt med:

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

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Age 18-80 years old
  • Histologically confirmed diffuse large B-cell lymphoma according to WHO 2022 criteria
  • Relapsed or refractory (R/R) disease following at least one prior systemic regimen that contained an anti-CD20 monoclonal antibody (mAb) in combination with chemotherapy
  • Participants who have failed after one prior line of therapy are not candidates for high-dose chemotherapy followed by autologous stem cell transplant (ASCT)
  • Presence of measurable or evaluable disease at baseline ECOG PS 0-2
  • ECOG PS 0-2
  • Adequate organ function and bone marrow function
  • Expected survival ≥ 3 months

Exclusion Criteria:

  • Prior treatment with antibodies targeting both CD20 and CD3
  • Contraindication to rituximab, gemcitabine or oxaliplatin, or prior treatment with an anti-CD20 antibody in combination with the GemOx regimen
  • Peripheral neuropathy assessed to be Grade >1 according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v6.0 at enrollment
  • Known central nervous system (CNS) involvement by lymphoma
  • Known any major episode of active infection requiring treatment with systemic antibiotics within 2 weeks
  • Treatment with chimeric antigen receptor T-cell (CAR-T) therapy within 100 days prior to first SCTB35 administration
  • Autologous HSCT within 100 days prior to first SCTB35 administration, or any prior allogeneic HSCT or solid organ transplantation
  • Major surgery within 4 weeks prior to first SCTB35 administration
  • Chemotherapy and other non-investigational antineoplastic agents (except CD20 mAbs) within 4 weeks or 5 half-lives (whichever is shorter) prior to first SCTB35 administration
  • Administration of a live, attenuated vaccine within 4 weeks before first study treatment administration or anticipation that such a live, attenuated vaccine will be required during the study

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
Aktiv komparator: R-GemOx
Legemiddel: Rituxumab
Deltakerne vil motta IV rituxumab på dag 1 av hver syklus i opptil 8 sykluser.
Legemiddel: Gemcitabine
Participants will receive IV gemcitabine administration for up to 8 cycles.
Legemiddel: Oxaliplatin
Participants will receive IV oxaliplatin administration for up to 8 cycles.
Eksperimentell: SCTB35-GemOx
Legemiddel: SCTB35 injection
SCTB35 will be subcutaneously administered at a dose as specified
Legemiddel: Gemcitabine
Participants will receive IV gemcitabine administration for up to 8 cycles.
Legemiddel: Oxaliplatin
Participants will receive IV oxaliplatin administration for up to 8 cycles.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Adverse Events
Tidsramme: Up to approximately 3 years
Treatment-emergent adverse events/serious adverse events/adverse events of special interest
Up to approximately 3 years
Progression free survival (PFS)
Tidsramme: Up to approximately 3 years
Defined as the time from the date of randomization to the date of first documentation of progression disease (PD) or the date of death from any cause, whichever occurs first.
Up to approximately 3 years

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Percentage of Participants Achieving Best Overall Response (BOR)
Tidsramme: Up to approximately 3 years
BOR is defined as Complete Response (CR) or Partial Response (PR), determined by Lugano criteria
Up to approximately 3 years
Percentage of Participants Achieving CR
Tidsramme: Up to approximately 3 years
Percentage of participants who achieve a CR determined per Lugano criteria.
Up to approximately 3 years
Overall Survival (OS)
Tidsramme: Up to approximately 3 years
Overall survival is defined as the duration from the date of randomization to the date of the participant's death.
Up to approximately 3 years
Duration of Response (DOR)
Tidsramme: Up to approximately 3 years
DOR is defined as the time from the first occurrence of response (CR or PR) to disease progression or death, whichever occurs first.
Up to approximately 3 years
Time to Response (TTR)
Tidsramme: Up to approximately 3 years
Time to response is defined for participants achieving a CR/PR as the time from starting therapy to first a CR/PR.
Up to approximately 3 years
Event-Free Survival (EFS)
Tidsramme: Up to approximately 3 years
EFS is defined as the duration from randomization to disease progression determined by Lugano criteria as assessed by the investigator, initiation of any non-protocol-specified new anti-lymphoma therapy for any reason, or death (whichever occurs first).
Up to approximately 3 years
Duration of Complete Response (DOCR)
Tidsramme: Up to approximately 3 years
DOCR is defined as the time from the first occurrence of CR to disease progression or death, whichever occurs first.
Up to approximately 3 years
Time to Complete Response (TTCR)
Tidsramme: Up to approximately 3 years
Time to complete response is defined for participants achieving a CR as the time from starting therapy to first a CR.
Up to approximately 3 years
Blood Concentrations of SCTB35
Tidsramme: Up to approximately 1 years
The pharmacokinetics of SCTB35 will be analyzed based on the drug concentrations at respective timepoints in the blood samples (or blood derivative)
Up to approximately 1 years
Anti-drug Antibodies of SCTB35
Tidsramme: Up to approximately 3 years
Blood samples (or blood derivative) will be screened for antibodies binding to SCTB35
Up to approximately 3 years

Samarbeidspartnere og etterforskere

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

Sponsor

Sinocelltech Ltd.

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 (Faktiske)

4. juni 2026

Primær fullføring (Antatt)

1. november 2027

Studiet fullført (Antatt)

1. april 2029

Datoer for studieregistrering

Først innsendt

29. april 2026

Først innsendt som oppfylte QC-kriteriene

29. april 2026

Først lagt ut (Faktiske)

6. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

13. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

11. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • SCTB35-B301

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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