Neoadjuvant Therapy vs Standard Therapy in Locally Advanced Rectal Cancer

Официальное название

Evaluation and Comparison of the Efficacy of a New Standard Pre-operative Chemotherapy for Stage II and III Colorectal Cancer According to the FOLFOX4 Regimen With Routine Chemoradiation Therapy

Обзор

Phase II, Multicenter, Open-label, Randomized Study evaluating neoadjuvant chemotherapy (FOLFOX4) in patients with stage II and III colorectal cancer with standard chemoradiation Defined by Magnetic Resonance Imaging

Подробное описание

This is a biomedical research, phase II, multicenter, open-label, randomized study, comparing neoadjuvant CT with FOLFOX4, versus immediate preoperative chemoradiotherapy (CRT), in patients with locally advanced rectal cancer. Randomization in a 1: 1 ratio, neoadjuvant chemotherapy or chemoradiation. The purpose of the study is to evaluate the efficacy, tolerability, and comparability of new standard preoperative chemotherapy with FOLFOX4 in patients with stage II and III colorectal cancer compared to routine chemoradiation.

Вмешательства

• Лучевая терапия Radiotherapy 50 Gy
  Radiotherapy 50 Gy 5 radiations per week of 2 Gy for 5 weeks
• Препарат Fluorouracil/folic acid
  Fluorouracil 400 mg/m² D1-4 and folic acid 20mg/m2 D1-4 the first and fifth weeks of radiotherapy
• Препарат Chemotherapy in regimen with Oxaliplatin, fluorouracil, folinic acid (FOLFOX4)
  oxaliplatin: 85 mg/m² in 2 hours at D1; folinic acid: 100 mg/m² simultaneously in 2 hours at D1 and D2 during the Oxaliplatin; bolus 5-fluorouracil (5-FU) 400mg/m² D1+D2; infusion 5-fluorouracil (5-FU): 600 mg/m² continuous infusion during 22hours at D1 and D2, every 14 days during 42 months (8 cycles).
• Лучевая терапия Radiotherapy 50 Gy
  Chemoradiotherapy 5 weeks (50 Grays (Gy), 2 Gy/session; 25 fractions) + fluorouracil/leucovorin 400 mg/m² 1-4 day the first and fifth weeks of radiotherapy. FOLOFX4 will be administrated for 8 cycles over a 16 week period. Patients will undergo re-staging within 6 weeks of their 8th cycle of FOLFOX. This will include MRI of the pelvis. If the reassessment reveals that there has been no disease progression compared to the pre-treatment evaluation and the patient remains a candidate for an R0 res

Первичные конечные точки

• disease-free survival [Срок оценки: 3 year]

Вторичные конечные точки (1)

• Overall survival [Срок оценки: 7 year]

Критерии участия

Критерии включения

• diagnosed with rectal adenocarcinoma;
• radiologically measurable tumor size;
• general condition (ECOG 0-2 points);
• stage II or III rectal tumor clinically (pelvic MRI and endorectal ultrasound),
• in the absence of long-term spread of the disease (confirmed by radiological examinations (computed tomography of the thorax and abdomen));
• during preoperative proctoscopy, the tumor is detected 0 -15 cm from the anus;
• Blood tests 28 days before the start of treatment:

and general blood count: neutrophils greater than 1.5x10 9 / l, platelets greater than 100 x 10 9 / l, Hemoglobin greater than 80 g / l, liver enzymes (Aspartate aminotransferase (AST/GOT), alanine aminotransferase (ALT/GPT) not more than 3 times upper limit), and renal function (creatinine up to 1.5 times the upper limit of normal) is normal; women of childbearing potential - negative pregnancy test;

• A signed informed consent form.

Критерии исключения

• patients with signs of intestinal obstruction at the start of treatment;
• previous lower abdominal radiation therapy;
• other tumors over a five-year period;
• pregnant or breastfeeding women;
• men and women of childbearing potential who do not agree to use adequate contraception;
• Patient co-morbidities that would make the patient unsuitable for this study or significantly interfere with the assessment of safety and toxicity.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Открытое

Основная цель

Лечение

Центры проведения

Литва · 1 центр

• Rita Ambraziene — Kaunas

Идентификаторы

NCT: NCT05378919 · RECTUM2015

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

Открыть это исследование на ClinicalTrials.gov ↗