Extended Peri-operative Tinzaparin to Improve Disease-free Survival in Patients With Resectable Colorectal Cancer (PERIOP-01)
Adenocarcinoma of the Colon
About this trial
This is an interventional prevention trial for Adenocarcinoma of the Colon
Eligibility Criteria
Inclusion Criteria:
- Diagnosis of pathologically-confirmed invasive adenocarcinoma of the colon or rectum
- Pre-operative work-up that reveals potential resectability (CT scan or MRI of the abdomen and pelvis) with resection planned within 6 weeks of date of randomization
- Pre-operative work-up that reveals no evidence of metastatic disease (CT scan or MRI of the abdomen and pelvis and chest X-ray (CXR) or CT scan of the chest)
- Age ≥18 years
- Hemoglobin ≥ 80g/L
- Able and willing to comply with study procedures and follow-up examinations contained within the written consent form.
Exclusion Criteria:
- Carcinoma only present in a completely excised polyp (i.e. no residual tumour evident in the colon)
- Prior VTE including deep vein thrombosis (DVT) or pulmonary embolism (PE)
- Requirement for full dose peri-operative anticoagulation
Contraindication to heparin therapy
- history of heparin induced thrombocytopenia (HIT)
- platelet count of less than 100 x 109/L
- actively bleeding
- severe hypertension (SBP >200 and/or DBP >120) on more than one reading
- documented peptic ulcer within 6 weeks
- severe hepatic failure (INR >1.8)
- creatinine clearance of < 30 ml/min as calculated by the Cockcroft-Gault formula
- Other contraindication to anticoagulation
- Participating in another interventional trial that may result in co-intervention or contamination (to be determined by sponsor)
- History of other malignancies (except for adequately treated basal or squamous cell carcinoma or carcinoma in situ) within 5 years of the colorectal cancer diagnosis
- Pregnant or lactating
- Unable/unwilling to providing informed consent.
Sites / Locations
- Ghent University Hospital
- Hamilton Health Sciences Corporation
- Kingston General Hospital
- London Health Research Institute
- The Ottawa Hospital
- Montfort Hospital
- Queensway Carleton Hospital
- Sault Area Hospital
- Health Sciences North
- Humber River Hospital
- Mount Sinai Hospital
- North York General Hospital
- St. Joseph's Health Centre
- Sunnybrook Health Science Centre
- Jewish General Hospital
- CHRU Brest
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Extended peri-operative thromboprophylaxis
Standard thromboprophylaxis
The experimental arm will receive a subcutaneous injection of 4,500 IU of tinzaparin daily beginning at randomization and continued for 56 days following resection. There will be a minimum of one dose of pre-operative LMWH since it is not reasonable to delay surgery for the purpose of administering LMWH. The maximum duration of pre-operative LMWH will be 6 weeks.
The control arm will receive a daily subcutaneous injection of 4,500 IU of tinzaparin beginning with the first post-operative dose and continued for the duration of hospitalization.