About this trial
This will be a global Phase IV, open-label, randomised study to evaluate the safety and tolerability of acalabrutinib (monotherapy, 100 mg orally \[po\], twice daily \[bd\]) compared to investigator's choice of treatment, in patients with CLL (TN or R/R) and moderate to severe cardiac impairment. Patients with moderate to severe cardiac impairment will include those with moderate to severe cardiac conditions, who may have been excluded from previous acalabrutinib clinical trials and in whom the safety of acalabrutinib was not systematically assessed.
The study is planned to take place in approximately 25 centres globally. The study will be conducted in centres that have established close collaboration between the Haematology and Cardiology divisions, preferably with a cardio-oncologist on the team.
An IDMC will be responsible for making recommendations for study continuation.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Men and women ≥ 18 years of age, at the time of signing the informed consent.
Eastern Cooperative Oncology Group performance status of 0 to 3
Meet at least one of the following cardiovascular inclusion criteria: - Left ventricular ejection fraction (LVEF) < 50% as assessed by local ECHO at screening. - History of heart failure or meeting Universal Definition of Heart Failure at screening, regardless of current LVEF. - History of ischaemic heart disease (IHD) including acute coronary syndrome, myocardial infarction, or coronary revascularization (percutaneous coronary intervention/stent or coronary artery bypass surgery). - Diagnosis of cardiomyopathy - Ongoing clinically significant (symptomatic or requiring intervention) cardiac arrhythmia, including atrial fibrillation or other arrhythmias. - History of moderate or severe cardiac valvular diseases as documented per cardiac imaging
Diagnosis of CLL
Disqualifiers
Known active CNS leukaemia, leptomeningeal disease or spinal cord compression. In case of R/R patients with prior history of CNS localisation of leukaemia who received treatment are eligible provided that there is no evidence of CNS involvement at study entry as documented by cerebrospinal fluid (CSF) cytology and/or brain MRI.
Ongoing Richter's transformation.
Prior exposure to a BTKi.
Major surgery within 30 days before first dose of study treatment.
Trial design
Parallel
Treatments tested in this trial
Acalabrutinib
DrugAcalabrutinib Monotherapy
Investigator's choice of treatment
Other interventioncontrol arm treatment type will be defined by the PI prior to randomisation
Treatment groups
Trial outcomes
Primary outcomes
Safety endpoints 1: To evaluate the incidence of CV (CardioVascular) adverse events leading to drug discontinuation after acalabrutinib treatment compared to investigators choice of treatment.
Frequency and time to discontinuation of any study treatment due to worsening in cardiovascular function or cardiovascular AEs.
Safety endpoints 2: To evaluate the duration on treatment prior to drug discontinuation due to CV adverse events after acalabrutinib treatment compared to investigators choice of treatment.
Incidence of Grade 4 and 5 cardiovascular events of interest.
Safety endpoints 3: To evaluate the incidence of life threatening and fatal cardiac events of interest after acalabrutinib treatment compared to investigators choice of treatment.
Incidence and relationship to study treatment of Grade ≥ 3 AEs.
Safety endpoints 4: To evaluate the frequency of grade≥3 Adverse events after acalabrutinib treatment compared to investigators choice of treatment.
Incidence and relationship to study treatment
Secondary outcomes
Efficacy Endpoints 1:To evaluate the overall survival after acalabrutinib treatment compared to investigators choice of treatment.
Overall survival (OS), defined as the time from randomisation to death from any cause. Per iwCLL 2018 criteria: • Event-free survival (EFS), defined as the time from randomisation to disease progression, initiation of subsequent anti-CLL therapy, or death from any cause, whichever occurs first.
Efficacy Endpoints 2:To evaluate the overall response rate after acalabrutinib treatment compared to investigators choice of treatment.
Overall response rate (ORR), defined as the proportion of patients with a complete response (CR), complete response with incomplete bone marrow recovery (CRi), nodular partial response (nPR) or partial response (PR).
Efficacy Endpoints 3: To evaluate the duration of response after acalabrutinib treatment compared to investigators choice of treatment.
Duration of response (DOR), defined as the time from the first documented response (PR or better) to disease progression or death (by any cause in the absence of disease progression).
Efficacy Endpoints 4: To evaluate the progression free survival after acalabrutinib treatment compared to investigators choice of treatment.
Progression-free survival (PFS), defined as the time from randomisation to disease progression or death (by any cause in the absence of disease progression).
Sponsors and contacts
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AstraZeneca
Lead sponsor
Fortrea
Collaborator
CALYX Inc.
Collaborator
eResearch Technology, Inc.
Collaborator
CISCRP
Collaborator