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

12. September 2017 aktualisiert von: 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.

Studienübersicht

Detaillierte Beschreibung

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.

Studientyp

Interventionell

Einschreibung (Tatsächlich)

110

Phase

  • Phase 2

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

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

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

20 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

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

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: 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)
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.
Andere Namen:
  • Xeloda
  • Oxalitin
50.4Gy of pelvic radiation with capecitabine or 5-fluorouracil
Andere Namen:
  • Xeloda
  • preoperative chemoradiation
Aktiver 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)
50.4Gy of pelvic radiation with capecitabine or 5-fluorouracil
Andere Namen:
  • Xeloda
  • preoperative chemoradiation

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
downstaging rate
Zeitfenster: 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

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
pathologic response
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 3 years after surgery
time from date of operation to date of death due to any cause.
3 years after surgery
quality of life
Zeitfenster: 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

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Ermittler

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

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn

1. Juni 2014

Primärer Abschluss (Tatsächlich)

1. September 2017

Studienabschluss (Voraussichtlich)

1. Dezember 2019

Studienanmeldedaten

Zuerst eingereicht

11. September 2013

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

25. September 2013

Zuerst gepostet (Schätzen)

30. September 2013

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

13. September 2017

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

12. September 2017

Zuletzt verifiziert

1. September 2017

Mehr Informationen

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