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About
This study will assess the efficacy and safety of capivasertib plus docetaxel versus placebo plus docetaxel in participants with metastatic castration resistant prostate cancer (mCRPC), all participants will receive the docetaxel with steroid therapy and receive androgen deprivation therapy. The intention of the study is to demonstrate that the combination of capivasertib plus docetaxel is superior to placebo plus docetaxel with respect to the overall survival of study participants, when overall survival is defined as the time from randomization until the date of death due to any cause.
Enrollment
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Inclusion criteria
Exclusion criteria
Radiotherapy with a wide field of radiation within 4 weeks before start of study treatment
Major surgery (excl. placement of vascular access, transurethral resection of prostate, bilateral orchiectomy, internal stents) within 4 weeks of start of study treatment
Brain metastases,or spinal cord compression (unless spinal cord compression is asymptomatic and stable and not requiring steroids for at least 4 weeks prior to start of study treatment)
Any of the following cardiac criteria:
i. Mean resting corrected QT interval (QTc) >470 msec from 3 consecutive ECGs ii. Any clinically important abnormalities in rhythm, conduction or morphology of resting ECG iii. Any factors that increase the risk of QTc prolongation or risk of arrhythmic events such as heart failure, hypokalaemia, potential for torsades de pointes, congenital long QT syndrome, family history of long QT syndrome or unexplained sudden death under 40 years of age,or any concomitant medication known to prolong the QT interval iv. Experience of any of the following procedures or conditions in the preceding 3 months: coronary artery bypass graft, vascular stent, myocardial infarction, unstable angina pectoris, congestive heart failure NYHA Grade ≥2 v. Symptomatic hypotension - systolic blood pressure <90 mmHg and/or diastolic blood pressure <50 mmHg vi. haemodinamic instability
Clinically significant abnormalities of glucose metabolism as defined by any of the following:
i. Patients with diabetes mellitus (DM) type 1 or DM type 2 requiring insulin treatment ii. HbA1c ≥8.0% (63.9 mmol/mol)
Inadequate bone marrow reserve or organ function as demonstrated by any of the following laboratory values:
i. Absolute neutrophil count < 1.5x 10^9/L ii. Platelet count < 100x 10^9/L iii. Haemoglobin < 9 g/dL (< 5.59 mmol/L) iv. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) > 2.5x upper limit of normal (ULN) if no demonstrable liver metastases or > 5x ULN in the presence of liver metastases. Elevated alkaline phosphatase (ALP) is not exclusionary if due to the presence of bone metastases and liver function is otherwise considered adequate in the investigator's judgement v. Total bilirubin > 1.5x ULN (participants with confirmed Gilbert's syndrome may be included in the study with a higher value) vi. Creatinine clearance < 50 mL/min per the Cockcroft and Gault formula without the need for chronic dialysis;
As judged by the investigator, any evidence of diseases (including severe or uncontrolled systemic diseases, uncontrolled hypertension, history of interstitial pneumonia / pneumonitis or interstitial lung disease, renal transplant and active bleeding diseases), which, in the investigator's opinion, makes it undesirable for the patient to participate in the study or that would jeopardise compliance with the protocol.
Refractory nausea and vomiting, malabsorption syndrome, chronic gastrointestinal diseases, inability to swallow the formulated product or previous significant bowel resection, or other condition that would preclude adequate absorption of capivasertib
Any other disease, physical examination finding, or clinical laboratory finding that, in the investigator's opinion, gives reasonable suspicion of a disease or condition that contra-indicates the use of an investigational drug, may affect the interpretation of the results, render the patient at high risk from treatment complications or interferes with obtaining informed consent. Evidence of dementia, altered mental status, or any psychiatric condition that would prohibit understanding or rendering of informed consent.
Previous allogeneic bone marrow transplant or solid organ transplant
History of another primary malignancy except for malignancy treated with curative intent with no known active disease ≥2 years before the first dose of study intervention and of low potential risk for recurrence. Exceptions include adequately resected non-melanoma skin cancer and curatively treated in situ disease.
Persistent toxicities (CTCAE Grade ≥2) caused by previous anticancer therapy, excluding alopecia. Patients with irreversible toxicity that is not reasonably expected to be exacerbated by study intervention in the opinion of the investigator may be included (eg, hearing loss)
Known to have active hepatitis infection.
Known to have human immunodeficiency virus (HIV) with a detectable viral RNA load or a CD4+ T-cell count < 350 cells/uL or a history of an acquired immunodeficiency syndrome (AIDS)-defining opportunistic infection within the past 12 months, or receiving anti-HIV medications for less than 4 weeks.
Known to have active tuberculosis infection (clinical evaluation that may include clinical history, physical examination and radiographic findings, or tuberculosis testing in line with local practice).
Treatment with any of the following:
i. Prior chemotherapy for CRPC. Chemotherapy for metastatic or localized HSPC (including docetaxel) is allowed provided that chemotherapy was completed ≥ 6months before randomisation and progression of the prostate cancer occurred ≥ 6months after the completion of therapy.
ii. Prior exposure to AKT inhibitors or PI3K inhibitors iii. Any investigational agents or study drugs from a previous clinical study within 30 days or 5 half-lives (whichever is longer) of the first dose of study treatment iv. Any other immunotherapy, immunosuppressant medication (other than corticosteroids) or anticancer agents (except ADT) within 3 weeks of the first dose of study treatment v. Strong inhibitors or strong inducers of cytochrome P450 (CYP)3A4 within 2 weeks prior to the first dose of study treatment (3 weeks for St John's wort), vi.Use of any live vaccine administration 30 days prior to the initiation of study treatment, during, and for at least 90 days after the last dose of the study treatment
Primary purpose
Allocation
Interventional model
Masking
1,000 participants in 2 patient groups, including a placebo group
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Central trial contact
AstraZeneca Clinical Study Information Center
Data sourced from clinicaltrials.gov
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