- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04215731
Neoadjuvant mFOLFOXIRI Plus Bevacizumab in Patients With High-Risk Locally Advanced Rectal Cancer (FOBEAR)
Neoadjuvant mFOLFOXIRI Plus Bevacizumab Versus Induction FOLFOX Followed by Concomitant Chemoradiotherapy in Patients With High-Risk Locally Advanced Rectal Cancer: Multicenter Randomized Phase III Trial
Multimodality treatment that comprises preoperative fluoropyrimidine with concurrent radiotherapy followed by total mesorectal excision (TME) surgery and adjuvant fluoropyrimidine-based chemotherapy is recommended as a standard treatment of patients with stage II/III rectal cancer. However, the main target of radiotherapy is local control but no improvement in disease-free survival (DFS) or overall survival (OS) has been shown with this treatment strategy, which leaves approximately 30% of patients in whom distant metastases will develop. Moreover, the short- and long-term adverse effects of radiotherapy such as chronic pain, faecal incontinence and urogenital/anal dysfunction are associated with poor quality of life.
Neadajuvant chemotherpay (NACT) alone has been proposed instead of preoperative chemoradiotherapy (CRT) with the aim of elimination of potential micrometastasis as early as possible while avoiding the adverse effects of radiotherapy, without jeopardizing local control.
Evidence from the UK CR07 trial suggests that, without RT, a local recurrence rate of 5% (27/543) can be achieved if a complete mesorectal excision is carried out with a negative CRM. A small single-center phase II pilot trial treated patients with stage II or III rectal cancer with induction FOLFOX/bevacizumab chemotherapy followed by CRT only in those with stable or progressive disease and resection in all patients. All 32 of the participants had an R0 resection, and the 4-year DFS was 84%. Another phase II trial, which included 60 patients with stage II/III rectal cancer, assessed the R0 resection rate after FOLFOX plus either bevacizumab or cetuximab. An R0 resection was achieved in 98.3% of the participants, and the pathologic complete response rate was 16.7%. The phase III FOWARC trial, compared neoadjuvant therapy with and without radiation and found that perioperative mFOLFOX6 alone led to a similar downstaging rate as fluorouracil-radiotherapy, and no significant difference in outcomes was found between mFOLFOX6 without radiotherapy and 5-FU- radiotherapy.
On the basis of the results of these trials, The investigators hypothesized that radiotherapy could be selectively omitted for patients who respond to NACT alone. The results of TRIBE showed that FOLFOXIRI plus bevacizumab yield a high objective response rate (ORR) (65%), early tumor shrinkage (ETS) (62.7%) and depth of response (DoR) (43.4%) in patients with metastatic colorectal cancer.
The investigators were motivated to investigate this triplet-drugs chemotherpay plus bevacizumab both by the possibility of avoiding the toxicities of radiation without compromising local control, and the possibility that earlier introduction of intensive systemic therapy might achieve rapid tumor shrinkage, and improve distant control.
The investigators conducted this phase III trial to compare neoadjuvant mFOLFOXIRI plus bevacizumab with selective radiotherapy with induction FOLFOX followed by concomitant chemoradiotherapy in patients with high-risk locally advanced rectal cancer.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Anticipated)
Phase
- Phase 3
Contacts and Locations
Study Contact
- Name: Xiaojian Wu, MD
- Phone Number: 02038389762
- Email: wuxjian@mail.sysu.edu.cn
Study Locations
-
-
Guangdong
-
Guangzhou, Guangdong, China, 510655
- Recruiting
- The Sixth Affiliated Hospital of Sun Yat-sen University
-
Contact:
- Yanhong Deng, MD
- Phone Number: 008613925106525
- Email: 13925106525@163.com
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Willing and able to provide written informed consent.
- Histological or cytological documentation of adenocarcinoma of the rectal (<12 cm from the anal verge).
- Determined preoperatively by pelvic MRI: high risk locally advanced (cT3 with any MRF involved, any cT4a/b, or lateral node positive).
- Male or female subjects > 18 years < 70 of age.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
- CT or MRI scans (done within 30 days of registration) of the chest, abdomen and pelvis all without clear evidence of distant metastatic (M1) disease.
- Non complicated primary tumor (complete obstruction, perforation, bleeding).
- No previous any systemic anticancer therapy for colon cancer disease.
- Adequate bone marrow, hepatic and renal function as assessed by the following laboratory requirements conducted within 7 days of starting study treatment:
Exclusion Criteria:
- Previous or concurrent cancer that is distinct in primary site or histology from colon cancer within 5 years prior to randomization.
- Significant cardiovascular disease including unstable angina or myocardial infarction within 6 months before initiating study treatment.
- Heart failure grade III/IV (NYHA-classification).
- Unresolved toxicity higher than CTCAE v.4.0 Grade 1 attributed to any prior therapy/procedure.
- Subjects with known allergy to the study drugs or to any of its excipients.
- Current or recent (within 4 weeks prior to starting study treatment) treatment of another investigational drug or participation in another investigational study.
- Breast- feeding or pregnant women
- Lack of effective contraception.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: mFOLFOXIRI Plus Bevacizumab
Patients will receive neoadjuvant mFOLFOXIRI plus bevacizumab once every two weeks for 4 cycles and the same mFOLFOXIRI for 2 cycles.
After completing all 6 cycles chemotherapy, the patient will have an MRI scan to examine the tumor.
If MRI restaging is ycT4a/b, or MRF involved, the patient will receive concomitant chemoradiotherapy (preoperative radiotherapy consisted of 50 Gy in 25 fractions, and concurrent with capecitabine at a fixed dose of 825 mg/m2 twice daily on days 1 to 5 for 5 weeks).
If MRI restaging is ycT0-3 and MRF negative, then the patient will proceed directly to surgery.
|
Bevacizumab (5 mg/kg on day 1) plus mFOLFOXIRI (oxaliplatin 85 mg/m2, irinotecan 150 mg/m2, and folinic acid 400 mg/m2 followed by 5-fluorouracil 2400mg/m2 as a 46-hour continuous infusion on day 1) for 4 cycles and mFOLFOXIRI (oxaliplatin 85 mg/m2, irinotecan 150 mg/m2, and folinic acid 400 mg/m2 followed by 5-fluorouracil 2400mg/m2 as a 46-hour continuous infusion on day 1) for 2 cycles
Other Names:
Restaging by pelvic magnetic resonance imaging (MRI)
Radical surgery (TME or more extended surgery)
Chemoradiotherapy (preoperative radiotherapy consisted of 50 Gy in 25 fractions, and concurrent with capecitabine at a fixed dose of 825 mg/m2 twice daily on days 1 to 5 for 5 weeks)
|
ACTIVE_COMPARATOR: Induction FOLFOX Followed by Concomitant Chemoradiotherapy
Patients will receive induction FOLFOX chemotherapy for 4 cycles and followed by concomitant chemoradiotherapy (preoperative radiotherapy consisted of 50 Gy in 25 fractions, and concurrent with capecitabine at a fixed dose of 825 mg/m2 twice daily on days 1 to 5 for 5 weeks), then the patient will proceed to surgery.
|
Radical surgery (TME or more extended surgery)
Concomitant chemoradiotherapy (preoperative radiotherapy consisted of 50 Gy in 25 fractions, and concurrent with capecitabine at a fixed dose of 825 mg/m2 twice daily on days 1 to 5 for 5 weeks)
mFOLFOX6 (oxaliplatin 85 mg/m2, and folinic acid 400 mg/m2 followed by bolus 5-fluorouracil 400 mg/m2 and 5-fluorouracil 2400mg/m2 as a 46-hour continuous infusion on day 1) for 4 cycles
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Disease-free survival
Time Frame: up to 3 years
|
Defined as the time from randomization to relapse or death, whichever occurred first.
|
up to 3 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
R0 resection rate
Time Frame: up to 3 years
|
R0 resection defined as complete tumor resection with all margins being negative.
|
up to 3 years
|
Pathologic complete response
Time Frame: up to 3 years
|
up to 3 years
|
|
Overall survival (OS)
Time Frame: up to 5 years
|
Defined as the time from randomization to death from any cause.
|
up to 5 years
|
Toxicity assessed using the NCI common toxicity criteria, version 4.0.
Time Frame: up to 5 years
|
The grade of toxicity will be assessed using the NCI common toxicity criteria, version 5.0.
|
up to 5 years
|
Postoperative morbidity
Time Frame: up to 5 years
|
up to 5 years
|
|
local recurrence rate
Time Frame: up to 3 years
|
up to 3 years
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- Neoplasms
- Neoplasms by Site
- Gastrointestinal Neoplasms
- Digestive System Neoplasms
- Gastrointestinal Diseases
- Intestinal Diseases
- Intestinal Neoplasms
- Rectal Diseases
- Colorectal Neoplasms
- Rectal Neoplasms
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Antimetabolites, Antineoplastic
- Antimetabolites
- Antineoplastic Agents
- Immunosuppressive Agents
- Immunologic Factors
- Protective Agents
- Topoisomerase Inhibitors
- Antineoplastic Agents, Immunological
- Angiogenesis Inhibitors
- Angiogenesis Modulating Agents
- Growth Substances
- Growth Inhibitors
- Micronutrients
- Vitamins
- Topoisomerase I Inhibitors
- Antidotes
- Vitamin B Complex
- Fluorouracil
- Oxaliplatin
- Bevacizumab
- Leucovorin
- Irinotecan
- Levoleucovorin
Other Study ID Numbers
- GIHSYSU-17
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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