A Phase II Trial of Preoperative Concurrent Chemotherapy and (IMRT) in Locally Advanced Rectal Cancer
Overview
- Phase
- Phase 2
- Intervention
- Not specified
- Conditions
- Rectal Cancers.
- Sponsor
- National University Hospital, Singapore
- Enrollment
- 63
- Locations
- 1
- Primary Endpoint
- Pathological complete response rates
- Last Updated
- 15 years ago
Overview
Brief Summary
The hypothesis of this study is that dose escalated intensity modulated radiotherapy (IMRT) to a dose of 55Gy in 25# to primary rectal tumor concurrent with oral capecitabine results in an improved pathological response rate from 8% (German trial) to 25%.
Detailed Description
This study aims to look at whether radiation dose escalation with intensity modulated radiotherapy can increase the rates of pathological complete response in patients with locally advanced rectal cancer treated with neoadjuvant chemoradiotherapy
Investigators
Eligibility Criteria
Inclusion Criteria
- •Pathologically proven diagnosis of adenocarcinoma of the rectum
- •Clinically determined to be stage T3 or T4,N0-N2, and M0 -staged by MRI or transrectal ultrasound of the rectum
- •Patients who are medically operable and who have resectable adenocarcinoma of the rectum at least \<15cm from the anal verge
- •Adequate liver/renal and haematological function.
- •Eastern Cooperative Oncology Group (ECOG) performance 0-2
- •Age ≥ 18 years
- •Full blood count obtained within 2 weeks prior to registration on study, with adequate bone marrow function defined as follows:
- •Absolute neutrophil count (ANC) ≥ 1,800 cells/mm3
- •Platelets ≥ 100,000 cells/mm3
- •Haemoglobin ≥ 8.0 g/dl
Exclusion Criteria
- •Prior invasive malignancy (except non-melanomatous skin cancer) unless disease free for a minimum of 3 years
- •Prior systemic chemotherapy for colorectal cancer; note that prior chemotherapy for a different cancer is allowable.
- •Prior radiotherapy to the region of the study cancer that would result in overlap of radiation therapy fields
- •Severe, active comorbidity, defined as follows:
- •Unstable angina and/or congestive heart failure requiring hospitalization within the last 12 months
- •Transmural myocardial infarction within the last 6 months
- •Hepatic insufficiency resulting in clinical jaundice and/or coagulation defects
- •Acquired immune deficiency syndrome (AIDS) based upon current CDC definition; note, however, that HIV testing is not required for entry into this protocol.
- •Evidence of uncontrolled seizures, central nervous system disorders, or psychiatric disability judged by the investigator to be clinically significant, precluding informed consent, or interfering with compliance of oral drug intake.
- •Known, existing uncontrolled coagulopathy. Patients on therapeutic anticoagulation may be enrolled provided that they have been clinically stable on anti-coagulation for at least 2 weeks.
Outcomes
Primary Outcomes
Pathological complete response rates
Time Frame: 8 weeks post chemoradiotherapy
Pathogical complete response rate 8 weeks post chemoradiotherapy at surgery according to Ryan's classification
Secondary Outcomes
- Toxicity(2 years)
- Disease Free survival(2 years)
- Downstaging rates(8 weeks after chemoradiotherapy)
- Sphincter Preservation rates(8 weeks after chemoradiotherapy)