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Preoperative Chemoradiation Followed by Chemotherapy for Locally Advanced Rectal Cancer (PREPARE)

12. september 2017 opdateret af: Sun Young Kim, National Cancer Center, Korea

A Randomized Phase II Trial of Preoperative Chemoradiation (Preop CRT) Followed by CapOx (Capecitabine Plus Oxaliplatin) Versus Preop CRT Alone for Locally Advanced Rectal Cancer (LARC)

The current standard treatment of locally advanced rectal cancer (clinical stage II or III) is preoperative radiation with chemotherapy (CRT) followed by surgery. But this approach can be suboptimal for patients with high risk features (more deeply-seated tumor or many regional lymph nodes involved)that are associated with recurrence. This study test a hypothesis that CRT followed by chemotherapy before surgery can improve efficacy of preoperative treatment.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Downstaging rate with CRT using fluoropyrimidine monotherapy is usually 30-40%.In MRI-defined high-risk patients, downstaging rate with conventional fluoropyrimidine-based monotherapy with radiation has not been shown. We assume that the downstaging rate of chemoradiation arm (control arm) would be 30%, and that addition of CapOx after CRT (experimental arm) may increase downstaging rate 30% to 50%. A sample size of 52 patients per group is needed have 85% power to detect downstaging rate = 50% as compared to 30% with type I error rate of 15%. We will perform one interim futility analysis when half of the patients are recruited and evaluated for the primary endpoint. O'Brien-Fleming boundary will be considered. Therefore, when 26 patients per arm are evaluated, the interim futility analysis will be performed, and when the Z score at the interim is less than -0.09192 (one-sided p-value greater than 0.5366192), the study will be stopped for futility. Considering 5% follow-up loss, a sample size of 55 per arm (a total of 110 patients) will be studied.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

110

Fase

  • Fase 2

Kontakter og lokationer

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

Studiesteder

  • Korea, Republikken
      • Anyang, Korea, Republikken
        • Hallym University Sacred Heart Hospital
      • Gangneung, Korea, Republikken
        • GangNeung Asan Hospital
      • Seoul, Korea, Republikken, 03722
        • Severance Hospital
      • Seoul, Korea, Republikken, 05505
        • Asan Medical Center
      • Seoul, Korea, Republikken, 06973
        • Chung-Ang University Hospital
    • Gyeonggi-do
      • Goyang, Gyeonggi-do, Korea, Republikken, 410-769
        • National Cancer Center
      • Seongnam, Gyeonggi-do, Korea, Republikken, 13620
        • Seoul National University Bundang Hospital

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

20 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • histologically confirmed adenocarcinoma of the rectum
  • distal margin of tumor located from 0 to 12 cm from anal verge measured by digital rectal examination

  • high risk clinical stage II or III in MRI (satisfying at least one of the followings)

    • circumferential resection margin < 1 mm involved
    • low-lying tumor below anal verge 3 cm
    • T3 > 5 mm extramural spread
    • T4 (involving surrounding structures or peritoneum)
    • cN2 (4 or more mixed signal intensity or irregularly bordered node or tumor deposit)
  • age 20 years or more
  • ECOG (Eastern Cooperative Oncology Group) performance status 0-2
  • No prior chemotherapy, radiotherapy to pelvis
  • Adequate bone marrow function
  • Adequate renal function
  • Adequate hepatic function
  • patients must sign the informed consent indicating that they were aware of the investigational nature of the study in keeping with the policy of the hospital

Exclusion Criteria:

  • malignant disease of the rectum other than adenocarcinoma or arisen from chronic inflammatory bowel disease
  • any unresected synchronous colon cancer
  • any distant metastases
  • intestinal obstruction or impending obstruction, but decompressing colostomy is permitted
  • any previous or concurrent malignancy withih 5 years other than non-melanoma skin cancer / in situ cancer of uterine cervix / early gastric cancer / thyroid cancer of low risk
  • any other morbidity or situation with relative contraindication for chemoradiotherapy
  • patients with history of significant gastric or small bowel resection, or malabsorption syndrome, or other lack of integrity of the upper gastrointestinal tract that may compromise the absorption of capecitabine
  • pregnant or lactating women or patients of childbearing potential not predicting adequate contraception

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: chemoradiation followed by CapOx
preoperative chemoradiation 50.4Gy with capecitabine or 5-fluorouracil/leucovorin (pelvic radiation capecitabine 5-fluorouracil) followed by 2 cycles of chemotherapy (Capecitabine Oxaliplatin - CapOx) and surgery (total mesorectal excision)
Medicin: Capecitabine Oxaliplatin
after completion of chemoradiation, two cycles of capecitabine (850mg/m2 twice daily from D1 evening to D15 morning) and oxaliplatin (100mg/m2 on D1) will be administered every 3 weeks.
Andre navne:
  • Xeloda
  • Oxalitin
Stråling: pelvic radiation capecitabine 5-fluorouracil
50.4Gy of pelvic radiation with capecitabine or 5-fluorouracil
Andre navne:
  • xeloda
  • preoperative chemoradiation
Aktiv komparator: chemoradiation
preoperative chemoradiation 50.4Gy with capecitabine or 5-fluorouracil/leucovorin (pelvic radiation capecitabine 5-fluorouracil) followed by rest for 8 weeks and surgery (total mesorectal excision)
Stråling: pelvic radiation capecitabine 5-fluorouracil
50.4Gy of pelvic radiation with capecitabine or 5-fluorouracil
Andre navne:
  • xeloda
  • preoperative chemoradiation

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
downstaging rate
Tidsramme: expected average of 15 weeks after start of study treatment
downstaging rate is defined as the proportion of patients with ypStage (pathologic stage after preoperative treatment) 0 or I (from pathologic findings after preoperative treatment and surgery) out of all patients who were assigned to each arm.
expected average of 15 weeks after start of study treatment

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
pathologic response
Tidsramme: expected average of 15 weeks after start of study treatment
pathologic response is assessed by Dworak's grading system from postoperative specimen.
expected average of 15 weeks after start of study treatment
radiologic response rate
Tidsramme: expected average of 14 weeks after start of study treatment
radiologic response will be assessed according to RECIST (Response Evaluation Criteria in Solid Tumors) guideline 1.1
expected average of 14 weeks after start of study treatment
toxicity profile
Tidsramme: expected average of 35 weeks after start of study treatment
Toxicities or any adverse events during study treatment, surgery and follow-up period will be assessed according to NCI CTCAE (Common Terminology Criteria for Adverse Events) version 4.0
expected average of 35 weeks after start of study treatment
pattern of failure
Tidsramme: 3 years after surgery
if any recurrent lesion is noticed, anatomic sites of recurrent lesions and the date and the name of exam or imaging study (physical exam, CT or MRI…) will be recorded in case report form.
3 years after surgery
local control rate
Tidsramme: 3 years after surgery
Local recurrence is defined as tumor recurrence confined in radiation field (pelvic cavity). Cumulative incidence of local recurrence will be suggested.
3 years after surgery
relapse-free survival
Tidsramme: 3 years after surgery
Time from date of operation to date of recurrence of disease or deaths due to recurrence or progression of disease.
3 years after surgery
Disease-free survival
Tidsramme: 3 years after surgery
time from date of operation to date of recurrence of disease, a new occurrence of secondary colorectal cancer, a new occurrence of other malignancy, or deaths from any cause.
3 years after surgery
overall survival
Tidsramme: 3 years after surgery
time from date of operation to date of death due to any cause.
3 years after surgery
quality of life
Tidsramme: before study treatment, 7 weeks after completion of chemoradiation, and at 4 weeks after surgery
quality of life will be measured with FACT-C
before study treatment, 7 weeks after completion of chemoradiation, and at 4 weeks after surgery

Samarbejdspartnere og efterforskere

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

Sponsor

National Cancer Center, Korea

Samarbejdspartnere

Korean Cancer Study Group

Efterforskere

  • Studiestol: Sun Young Kim, MD, Asan Medical Center

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

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

1. juni 2014

Primær færdiggørelse (Faktiske)

1. september 2017

Studieafslutning (Forventet)

1. december 2019

Datoer for studieregistrering

Først indsendt

11. september 2013

Først indsendt, der opfyldte QC-kriterier

25. september 2013

Først opslået (Skøn)

30. september 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

13. september 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. september 2017

Sidst verificeret

1. september 2017

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • KCSG CO14-03

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

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