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SCRT Combined With CAPOX and PD-1/CTLA4 Antibody for Early-stage Low Rectal Cancer

17. september 2026 opdateret af: Zhen Zhang, Fudan University

The Combination of PD-1/CTLA4 Antibody and Neoadjuvant Short-course Radiotherapy in Early-stage Low Rectal Cancer

The study evaluates the combination of immunotherapy of PD-1/ CTLA4 antibody and neoadjuvant short-course radiotherapy in early low rectal cancer. A total of 34 patients will receive 5*5Gy short-course radiotherapy, followed by 4 cycles of capecitabine plus oxaliplatin (CAPOX) chemotherapy and PD-1/ CTLA4 antibody, finally receive the local excision(TEM) or total mesorectal excision (TME). The rate of complete response (cCR+pCR), Organ retention rate, long-term prognosis, and adverse effects will be analyzed.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

34

Fase

  • Fase 2

Kontakter og lokationer

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

Studiekontakt

Studiesteder

  • Kina
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Kina, 200030
        • Fudan University Shanghai Cancer Center

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 til 75 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  1. age 18-75 years old, female and male
  2. pathological confirmed adenocarcinoma
  3. clinical stage T1-3bN0, tumor maximum diameter less than 4cm
  4. the distance from anal verge less than 5 cm
  5. without distance metastases
  6. KPS >=70
  7. with good compliance
  8. microsatellite repair status is MSS/pMMR
  9. without previous anti-cancer therapy or immunotherapy
  10. signed the inform consent

Exclusion Criteria:

  1. pregnancy or breast-feeding women
  2. pathological confirmed signet ring cell carcinoma
  3. clinical stage T1N0 and can be resected locally
  4. history of other malignancies within 5 years
  5. serious medical illness, such as severe mental disorders, cardiac disease, uncontrolled infection, etc.
  6. immunodeficiency disease or long-term using of immunosuppressive agents
  7. baseline blood and biochemical indicators do not meet the following criteria: neutrophils≥1.5×10^9/L, Hb≥90g/L, PLT≥100×10^9/L, ALT/AST ≤2.5 ULN, Cr≤ 1 ULN
  8. DPD deficiency
  9. allergic to any component of the therapy

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: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Treatment Arm

A total of 34 patients will receive 5*5Gy short-course radiotherapy, followed by 4 cycles of CAPOX chemotherapy and PD-1/CTLA4 antibody, finally receive the TEM or TME surgery.
Stråling: Shor-course radiotherapy

Shor-course radiotherapy: 25Gy/5Fx

Medicin: PD-1/CTLA4 Antibody

Iparomlimab and Tuvonralimab, 5mg/kg, d1 q3w

Medicin: Capecitabine

Capecitabine: 1000mg/m2 d1-14 q3w

Medicin: Oxaliplatin

130mg/m2 d1 q3w

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
complete response (CR) rate
Tidsramme: From date of receiving neoadjuvant therapy, assessed up to 2 years

Rate of complete response (CR), including the rate of pathologic complete response (pCR) after surgery and the rate of cCR with W&W strategy.
From date of receiving neoadjuvant therapy, assessed up to 2 years

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Organ preservation rate
Tidsramme: From date of receiving neoadjuvant therapy, assessed up to 2 years

Rate of patients who underwent organ preservation via WW or TEM after neoadjuvant therapy
From date of receiving neoadjuvant therapy, assessed up to 2 years
3 year disease free survival rate
Tidsramme: From date of initiation of treatment until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months

Rate of 3 year disease free survival
From date of initiation of treatment until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months
3 year local recurrence free survival rate
Tidsramme: From date of initiation of treatment until the date of first documented pelvic failure, assessed up to 36 months.

Rate of 3 year local recurrence free survival
From date of initiation of treatment until the date of first documented pelvic failure, assessed up to 36 months.
3 year overall survival rate
Tidsramme: From date of initiation of treatment until the date of death from any cause, assessed up to 36 months.

Rate of 3 year overall survival
From date of initiation of treatment until the date of death from any cause, assessed up to 36 months.
10 year Quality of Life
Tidsramme: From date of initiation of treatment until the date of death from any cause, assessed up to 10 years

Patient self-assessment via EORTC QLQ-C30 questionnaire to monitor changes in quality of life throughout treatment.
From date of initiation of treatment until the date of death from any cause, assessed up to 10 years
Grade 3-4 adverse effects rate
Tidsramme: From date of initiation of treatment until the date of death from any cause, assessed up to 5 years

Incidence and severity of treatment side effects graded by NCI CTCAE v5.0.
From date of initiation of treatment until the date of death from any cause, assessed up to 5 years

Samarbejdspartnere og efterforskere

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

Sponsor

Fudan University

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)

1. september 2026

Primær færdiggørelse (Anslået)

31. december 2027

Studieafslutning (Anslået)

31. december 2028

Datoer for studieregistrering

Først indsendt

23. august 2026

Først indsendt, der opfyldte QC-kriterier

17. september 2026

Først opslået (Faktiske)

23. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

23. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

17. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • FDRT-2026-306-5158

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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