Venous Thromboembolism
Conditions
Brief summary
Apixaban for the treatment of venous thromboembolism in patients with cancer: a prospective randomized open blinded end-point (PROBE) study
Interventions
Tablets
Injections
Sponsors
Study design
Eligibility
Inclusion criteria
* Consecutive patients with a newly diagnosed, objectively confirmed: symptomatic or unsuspected, proximal lower-limb DVT or symptomatic PE or unsuspected PE in a segmental or more proximal pulmonary artery; * Any type of cancer (other than basal-cell or squamous-cell carcinoma of the skin, primary brain tumor or intracerebral metastasis and acute leukemia); * Signed and dated informed consent of the patient, available before the start of any specific trial procedure.
Exclusion criteria
* age \<18 years; * ECOG Performance Status III or IV; * life expectancy of less than 6 months; Related to anticoagulant treatment: * administration of therapeutic doses of LMWH, fondaparinux, or unfractionated heparin (UFH) for more than 72 hours before randomization; * 3 or more doses of a vitamin K antagonist before randomization; * thrombectomy, vena cava filter insertion, or thrombolysis used to manage the index episode; * indication for anticoagulant treatment for a disease other than the index VTE episode; Related to bleeding risk: * thienopyridine therapy (clopidogrel, prasugrel, or ticagrelor) or aspirin over 165 mg daily or dual antiplatelet therapy; * active bleeding or a high risk of bleeding contraindicating anticoagulant treatment; * recent (in the last 1 month prior to randomization) brain, spinal or ophthalmic surgery * hemoglobin level lower than 8 g/dL (5.0 mmol/L) or platelet count \<75x10\^9/L or history of heparin induced thrombocytopenia; * creatinine clearance \< 30 ml /min based on the Cockcroft Gault equation; * acute hepatitis, chronic active hepatitis, liver cirrhosis; or an alanine aminotransferase level 3 times or more and/or bilirubin level 2 times or more higher the upper limit of the normal range; * uncontrolled hypertension (systolic BP\> 180 mmHg or diastolic BP \> 100 mmHg despite antihypertensive treatment); * concomitant use of strong inhibitors or inducers of both cytochrome P-450 3A4 and P-Glycoprotein; Standard criteria: * bacterial endocarditis; * hypersensitivity to the active substance or to any of the excipients of study drug; * patients participation in other pharmaco therapeutic program with an experimental therapy that is known to effect the coagulation system; * childbearing potential without proper contraceptive measures, pregnancy, or breast feeding; * any condition that as judged by the Investigator would place the subject at increased risk of harm if he/she participated in the study.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Recurrent Venous Thromboembolism | 6 months | Primary efficacy outcome: objectively confirmed recurrent VTE occurring during the study period, that means the composite of: · proximal DVT of the lower limbs (symptomatic or unsuspected), DVT of the upper limb (symptomatic), PE (symptomatic or unsuspected) |
Countries
Belgium, France, Germany, Israel, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom, United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Apixaban orally administered, at the dose of 10 mg bid for 7 days, followed by 5 mg bid (total period of treatment: six months)
Apixaban: Tablets | 576 |
| Dalteparin subcutaneously administered, at a dose of 200 IU/kg SC o.i.d for 1 month. Thereafter, dalteparin will be administered at a dose of 150 IU/kg o.i.d. for 5 months
Dalteparin: Injections | 579 |
| Total | 1,155 |
Baseline characteristics
| Characteristic | Apixaban | Total | Dalteparin |
|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 377 Participants | 746 Participants | 369 Participants |
| Age, Categorical Between 18 and 65 years | 199 Participants | 409 Participants | 210 Participants |
| Age, Continuous | 67.2 years STANDARD_DEVIATION 11.3 | 67.2 years STANDARD_DEVIATION 11.1 | 67.2 years STANDARD_DEVIATION 10.9 |
| Race (NIH/OMB) American Indian or Alaska Native | 1 Participants | 1 Participants | 0 Participants |
| Race (NIH/OMB) Asian | 3 Participants | 5 Participants | 2 Participants |
| Race (NIH/OMB) Black or African American | 9 Participants | 18 Participants | 9 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 107 Participants | 206 Participants | 99 Participants |
| Race (NIH/OMB) White | 456 Participants | 925 Participants | 469 Participants |
| Region of Enrollment Belgium | 2 participants | 9 participants | 7 participants |
| Region of Enrollment France | 102 participants | 192 participants | 90 participants |
| Region of Enrollment Germany | 14 participants | 28 participants | 14 participants |
| Region of Enrollment Israel | 18 participants | 26 participants | 8 participants |
| Region of Enrollment Italy | 204 participants | 397 participants | 193 participants |
| Region of Enrollment Netherlands | 64 participants | 138 participants | 74 participants |
| Region of Enrollment Poland | 10 participants | 20 participants | 10 participants |
| Region of Enrollment Portugal | 8 participants | 13 participants | 5 participants |
| Region of Enrollment Spain | 80 participants | 175 participants | 95 participants |
| Region of Enrollment United Kingdom | 14 participants | 32 participants | 18 participants |
| Region of Enrollment United States | 60 participants | 125 participants | 65 participants |
| Sex: Female, Male Female | 284 Participants | 587 Participants | 303 Participants |
| Sex: Female, Male Male | 292 Participants | 568 Participants | 276 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 135 / 576 | 153 / 579 |
| other Total, other adverse events | 89 / 576 | 74 / 579 |
| serious Total, serious adverse events | 255 / 576 | 276 / 579 |
Outcome results
Recurrent Venous Thromboembolism
Primary efficacy outcome: objectively confirmed recurrent VTE occurring during the study period, that means the composite of: · proximal DVT of the lower limbs (symptomatic or unsuspected), DVT of the upper limb (symptomatic), PE (symptomatic or unsuspected)
Time frame: 6 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Apixaban | Recurrent Venous Thromboembolism | 32 Participants |
| Dalteparin | Recurrent Venous Thromboembolism | 46 Participants |