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Clinical Trials/EUCTR2021-003076-14-AT
EUCTR2021-003076-14-ATActive, not recruitingPhase 1

A multicenter, randomized, open-label, blinded endpoint evaluation, phase 3 study comparing the effect of abelacimab relative to apixaban on venous thromboembolism (VTE) recurrence and bleeding in patients with cancer associated VTE - ASTER

Anthos Therapeutics0 sites1,655 target enrollmentStarted: June 27, 2022Last updated:
Conditions
Drugs

Trial Snapshot

Phase
Phase 1
Status
Active, not recruiting
Sponsor
Enrollment
1,655

Study Overview

Brief Summary

No summary available.

Study Design

Study Type
Interventional

Eligibility Criteria

Sex
All

Inclusion Criteria

  • Male or female subjects =18 years old or another legal maturity age according to the country of residence
  • Confirmed diagnosis of cancer (by histology or adequate imaging modality), other than basal-cell or squamous-cell carcinoma of the skin alone with one of the following:
  • oActive cancer, defined as either locally active, regionally invasive, or metastatic cancer at the time of randomization, and/or
  • oCurrently receiving or having received anticancer therapy (radiotherapy, chemotherapy, hormonal therapy, any kind of targeted therapy or any other anticancer therapy) in the last 6 months.
  • Confirmed symptomatic or incidental proximal lower limb DVT (i.e., popliteal, femoral, iliac, and/or inferior vena cava vein thrombosis) and/or a confirmed symptomatic or incidental PE of a segmental, or larger pulmonary artery, and/or a confirmed symptomatic or incidental PE of two or more subsegmental pulmonary arteries. Patients are eligible within 120 hours from diagnosis of the qualifying VTE.
  • Anticoagulation therapy with a therapeutic dose of DOAC for at least 6 months is indicated.
  • Able to provide written informed consent.
  • Are the trial subjects under 18? no
  • Number of subjects for this age range:
  • F.1.2 Adults (18-64 years) yes
  • F.1.2.1 Number of subjects for this age range 828
  • F.1.3 Elderly (>=65 years) yes
  • F.1.3.1 Number of subjects for this age range 827

Exclusion Criteria

  • Thrombectomy, insertion of a caval filter or use of a fibrinolytic agent to treat the current (index) occurrence of DVT and/or PE
  • More than 120 hours of pre-treatment with therapeutic doses of UFH, LMWH, fondaparinux, DOAC, or other anticoagulants
  • An indication to continue treatment with therapeutic doses of an anticoagulant other than that used for VTE treatment prior to randomization (e.g., atrial fibrillation, mechanical heart valve, prior VTE)
  • Platelet count <50,000/mm3 at the screening visit
  • PE leading to hemodynamic instability (systolic blood pressure [BP] <90 mmHg or shock)
  • Acute ischemic or hemorrhagic stroke or intracranial hemorrhage within 4 weeks preceding screening
  • Brain trauma, or a cerebral or a spinal cord surgery or spinal procedures such as lumbar puncture or epidural/spinal anesthesia or a spinal cord surgery in the 4 weeks preceding screening
  • Need for aspirin in a dosage of more than 100 mg/per day or any other antiplatelet agent alone or in combination with aspirin
  • Primary brain cancer or untreated intracranial metastases at baseline
  • Acute myeloid or lymphoid leukemia at baseline
  • Bleeding requiring medical attention at the time of randomization or in the preceding 4 weeks
  • Planned brain, spinal cord, cardiac, vascular, major thoracic and/or major abdominal surgery in the 4 weeks following randomization.
  • Eastern Cooperative Oncology Group (ECOG) performance status of 3 or 4 at screening
  • Life expectancy <3 months at randomization
  • Calculated creatinine clearance (CrCl) <30 mL/min (Cockcroft-Gault equation) at the screening visit
  • Hemoglobin less than 8 g/dL at the screening visit
  • 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 at the screening visit in absence of clinical explanation
  • Uncontrolled hypertension (systolic BP>180 mm Hg or diastolic BP >100 mm Hg despite antihypertensive treatment)
  • Women of child-bearing potential (WOCBP) who are unwilling or unable to use highly effective contraceptive measures during the study from screening up to 3 days after last treatment of dalteparin or 100 days after administration of abelacimab (See Section 5.3.6 for highly effective contraceptive measures).
  • Sexually active males with sexual partners of childbearing potential must agree to use a condom or other reliable contraceptive measure up to 3 days after last treatment of dalteparin or 100 days after administration of abelacimab
  • Pregnant or breast-feeding women
  • Patients known to be receiving strong dual inducers or inhibitors of both CYP3A4 and P-gp
  • History of hypersensitivity to any of the study drugs (including apixaban) or its excipients, to drugs of similar chemical classes, or any contraindication listed in the label for apixaban
  • Subjects with any condition that as judged by the Investigator would place the subject at increased risk of harm if he/she participated in the study
  • Use of other investigational (not-registered) drugs within 5 half-lives prior to enrollment or until the expected pharmacodynamic effect has returned to baseline, whichever is longer. Participation in academic non-interventional or interventional studies, comprising testing different strategies or different combinations of registered drugs is permitted.

Investigators

Sponsor
Anthos Therapeutics

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