Prostate CancerPhase 3CAPItello280NCT05348577
Study of Capivasertib + Docetaxel vs Placebo + Docetaxel as Treatment for Metastatic Castration Resistant Prostate Cancer (mCRPC)
A Phase 3 study testing capivasertib and docetaxel in people with Prostate Cancer, run by AstraZeneca at 217 sites in 22 countries.
Trial summary
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. Read more about this study
- Who is it for?
- Ages 18 to 130 years, men only
- Conditions the study is for
- Prostate Cancer
- What is being tested?
- capivasertib and docetaxel
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 1,035 participants
- Where
- 217 sitesin 22 countries
- Study dates
- 25 Mar 2022to 4 Mar 2026
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 130 years
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Histologically-confirmed prostate adenocarcinoma without predominant neuroendocrine or small cell cancers
- Metastatic disease documented prior to randomisation by clear evidence of ≥ 1 bone lesion (defined as 1 lesion with positive uptake on bone scan) and/or ≥ 1 soft tissue lesion (measurable or non-measurable)
- Patient must have been previously treated with a next generation hormonal agent (NHA), ie, abiraterone, enzalutamide, apalutamide or darolutamide, for prostate cancer for at least 3 months and shown evidence of disease progression (radiological or via PSA assessment) while receiving the NHA
- Evidence of mCRPC with progression of disease despite androgen deprivation therapy (ADT)
- Serum testosterone level ≤ 50 ng/dL
- Candidate for docetaxel and steroid therapy
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- Ongoing ADT with LHRH agonist, LHRH antagonist, or bilateral orchiectomy
- Eastern Cooperative Oncology Group (ECOG)/World Health Organisation (WHO) performance status 0 to 1 and anticipated minimum life expectancy of 12 weeks
- Confirmation that archival formalin-fixed paraffin-embedded (FFPE) tumour tissue sample which meets the minimum pathology and sample requirements is available to send to the central laboratory
- Able and willing to swallow and retain oral medication
- Agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures, and agreement to refrain from donating sperm
Who cannot join
- 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:
- 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:
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- 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:
- 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:
- 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.
- 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
- Drugs known to significantly prolong the QT interval and associated with Torsade de Pointes within 5 half-lives of the first dose of study treatment
- History of hypersensitivity to active or inactive excipients of capivasertib, docetaxel, or drugs with a similar chemical structure or class
- Any restriction or contraindication based on the local prescribing information that would prohibit the use of docetaxel
Trial locations and contacts
217 sites in 22 countries.
217 sites in 22 countries
United States37 sites
Research Site
Albany, New York, 12208
Research Site
Aurora, Colorado, 80045
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Austin, Texas, 78731
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Bala-Cynwyd, Pennsylvania, 19004-1017
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Baltimore, Maryland, 21201
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Baltimore, Maryland, 21287
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Beverly Hills, California, 90211
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Cerritos, California, 90703
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Chattanooga, Tennessee, 37404
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Chesapeake, Virginia, 23320
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Dallas, Texas, 75235
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Fresno, California, 93701
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Greenville, South Carolina, 29605
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Hackensack, New Jersey, 07601
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Houston, Texas, 77096
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Kingwood, Texas, 77339
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Lakewood, Colorado, 80228
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Littleton, Colorado, 80120
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Los Angeles, California, 90095
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Minneapolis, Minnesota, 55404
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Minneapolis, Minnesota, 55416
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Nashville, Tennessee, 37203
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Philadelphia, Pennsylvania, 19107
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Philadelphia, Pennsylvania, 19111
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Portland, Oregon, 97223
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Sacramento, California, 95817
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San Antonio, Texas, 78217
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San Francisco, California, 94115
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Santa Barbara, California, 93105
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Santa Monica, California, 90404
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Santa Rosa, California, 95403
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Seattle, Washington, 98109
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The Bronx, New York, 10461
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Toledo, Ohio, 43623
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Watertown, South Dakota, 57201
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White Plains, New York, 10601
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Yuma, Arizona, 85364
China25 sites
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Beijing, 100021
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Beijing, 100034
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Beijing, 100050
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Changsha, 410008
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Changsha, 410013
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Chengdu, 610041
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Chengdu, 610072
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Chongqing, 400038
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Guangzhou, 510180
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Hangzhou, 310000
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Hangzhou, 310003
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Harbin, 150040
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Jiaxing, 314001
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Nanchang, 330019
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Nanjing, 210008
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Nantong, 226361
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Ningbo, 315010
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Shanghai, 200032
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Shanghai, 200040
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Shenyang, 110042
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Tianjin, 300052
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Wuhan, 430030
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Wuhan, 430079
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Yantai, 264000
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Zhengzhou, 450008
Brazil19 sites
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Cachoeiro de Itapemirim, 29308-014
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Ijuí, 98700-000
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Itajaí, 88301-220
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Joinville, 89201-470
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Porto Alegre, 90020-090
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Porto Alegre, 90035-903
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Porto Alegre, 90110-270
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Porto Alegre, 90160-093
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Recife, 50040-000
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Rio de Janeiro, 22281-100
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Rio de Janeiro, 22793-080
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Salvador, 41253-190
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Salvador, 41820-021
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Santa Maria, 97015-450
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São José Do Rio Preto - SP, 15090-000
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São Paulo, 01221-020
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São Paulo, 01509-900
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São Paulo, 04014-002
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Três Lagoas, 79601-001
Japan19 sites
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Chiba, 260-8717
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Hirakata-shi, 573-1191
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Hirosaki-shi, 036-8563
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Kanazawa, 920-8641
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Kashihara-shi, 634-8522
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Kita-gun, 761-0793
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Kobe, 650-0047
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Kumamoto, 860-0008
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Miyazaki, 889-1692
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Nagano, 381-8551
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Nagoya, 466-8560
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Nakano, 164-0001
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Osaka, 541-8567
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Osakasayama-shi, 589-8511
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Sagamihara-shi, 252-0375
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Sapporo, 003-0804
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Tsu, 514-8507
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Wakayama, 641-8510
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Yokohama, 232-0024
France14 sites
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Bordeaux, 33076
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Brest, 29609
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Clermont-Ferrand, 63011
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Créteil, 94010
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Montpellier, 34298
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Paris, 75014
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Paris, 75020
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Rouen, 76031
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Saint-Herblain, 44805
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Saint-Mandé, 94160
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Strasbourg, 67000
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Strasbourg, 67033
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Vandœuvre-lès-Nancy, 54000
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Villejuif, 94805
Spain11 sites
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Barcelona, 08003
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Barcelona, 08035
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Barcelona, 08036
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Barcelona, ?08041
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Córdoba, 14004
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Lugo, 27003
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Madrid, 28034
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Madrid, 28040
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Málaga, 29010
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Sabadell, 08208
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Seville, 41013
United Kingdom9 sites
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Edinburgh, EH4 2XU
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Glasgow, G12 0YN
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Guildford
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Hackensack, 07601-1963
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London, SE1 9RT
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London, SW7 3RP
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Manchester, M20 4BX
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Southampton, SO16 6YD
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Sutton, SM2 5PT
Hungary8 sites
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Budapest, 1097
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Budapest, 1122
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Budapest, 1125
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Budapest, 1145
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Kecskemét, 6000
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Nyíregyháza, 4400
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Szeged, 6725
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Szolnok, 5000
Mexico8 sites
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Aguascalientes, 20116
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Culiacán, 80230
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Guadalajara, 44260
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Guadalajara, 44680
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México, 04700
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Mexico City, 03840
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Oaxaca City, 68000
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Zapopan, 45116
South Korea8 sites
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Bukgu, 41404
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Busan, 602-739
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Goyang-si, 10408
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Seoul, 03080
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Seoul, 03722
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Seoul, 05505
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Seoul, 06591
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Seoul, 6273
Australia7 sites
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Birtinya, 4575
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Greenslopes, 4120
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Kogarah, 2217
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North Adelaide, 5000
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Orange, 2800
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Redcliffe, 4020
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Wahroonga, 2076
Israel7 sites
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Be’er Ya‘aqov, 70300
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Haifa, 3109601
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Jerusalem, 91120
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Kfar Saba, 44281
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Petah Tikva, 4941492
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Ramat Gan, 52621
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Tel Aviv, 6423906
Canada6 sites
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Halifax, Nova Scotia, B3H 2Y9
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Montreal, Quebec, H3T 1E2
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Oshawa, Ontario, L1G 2B9
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Sherbrooke, Quebec, J1H 5N4
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Toronto, Ontario, M5G 2M9
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Toronto, M4N 3M5
Czechia6 sites
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Hořovice, 268 01
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Hradec Králové, 500 05
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Pardubice, 532 03
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Prague, 10034
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Prague, 14059
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Prague, 150 06
Greece6 sites
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Athens, 115 22
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Athens, 155 62
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Chaïdári, 124 62
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Marousi, 151 23
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Pátrai, 26504
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Piraeus, 185 47
Taiwan6 sites
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Kaohsiung City, 81362
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Taichung, 40447
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Tainan, 704
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Tainan, 710
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Taipei, 10002
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Taipei, 11259
Turkey (Türkiye)5 sites
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Adana, 01060
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Edirne, 22030
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Izmir, 35575
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Şahinbey, 27310
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Yüreğir, 01240
Chile4 sites
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Santiago, 7500713
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Santiago, 7500918
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Santiago, 7650568
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Viña del Mar, 2520000
India4 sites
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Bikaner, 334003
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Meerut, 250001
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Mohali, 160055
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New Delhi, 110085
Belgium3 sites
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Brasschaat, 2930
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Ghent, 9000
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Liège, 4000
Poland3 sites
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Nowa Sól, 67-106
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Opole, 45-061
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Wieliszew, 05-135
Netherlands2 sites
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Hoofddorp, 2134 TM
Research Site
The Hague, 2545 CH
About this study
Official title: A Phase III Double-Blind, Randomised, Placebo-Controlled Study Assessing the Efficacy and Safety of Capivasertib + Docetaxel Versus Placebo + Docetaxel as Treatment for Patients With Metastatic Castration Resistant Prostate Cancer (mCRPC)
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 and/or the radiographic progression free survival of study participants.
- Conditions
- Prostate Cancer
- Being tested
- capivasertib, docetaxel, placebo
- Keywords
- prostate cancer,, metastatic, castration resistant, capivasertib,, AKT inhibitor,, docetaxel
- Medical subject headings
- Prostatic Neoplasms, Neoplasm Metastasis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
capivasertibDrug
320 mg (2 tablets) BD given on an intermittent weekly dosing schedule. Patients will be dosed on Days 2 to 5, 9 to 12, and 16 to 19 in each week of a 21-day treatment cycle.
Number of Cycles: until disease progression or unacceptable toxicity develops, death, or if the patient requests to stop the study treatment.
docetaxelDrug
Patients will receive docetaxel in intravenous infusion, 75 mg/m2 BSA, on Day 1 of the 21-day cycles for up to 6 to 10 cycles, according to standard of care practices.
placeboOther
matched to capivasertib appearance (2 tablets) BD given orally on an intermittent weekly dosing schedule. Patients will be dosed on Days 2 to 5, 9 to 12, and 16 to 19 in each week of a 21-day treatment cycle. Number of Cycles: until disease progression or unacceptable toxicity develops, death, or if the patient requests to stop the study treatment.
| Study group | Role | What they receive |
|---|---|---|
| capivasertib + docetaxel | Experimental | Participants receive capivasertib in combination with docetaxel and steroids on a background of ADT. Receives: Drug: capivasertib; Drug: docetaxel |
| placebo + docetaxel | Placebo comparator | Participants receive placebo in combination with docetaxel and steroids on a background of ADT. Receives: Drug: docetaxel; Other: placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Overall Survival (OS) in the overall population
Overall survival is defined as time from randomisation until the date of death due to any cause.
Measured: up to approximately 46 months
Radiographic Progression-free Survival (rPFS) in the overall population
Radiographic Progression-free Survival (rPFS) is defined as time from randomization to radiographic progression as assessed by the investigator per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) for soft tissue and/or Prostate Cancer Working Group 3 (PCWG3) for bone or death due to any cause
Measured: up to approximately 37 months
Secondary outcomes (10)
Overall Survival (OS) in patients with mCRPC and PTEN-proficient tumours (IHC)
OS is defined as time from randomisation until the date of death due to any cause.
Measured: up to approximately 46 months
Overall Survival (OS) in patients with mCRPC and PTEN-deficient tumours (IHC).
OS is defined as time from randomisation until the date of death due to any cause.
Measured: up to approximately 46 months
Radiographic Progression-free Survival (rPFS) in patients with mCRPC and PTEN-proficient tumours (IHC)
Radiographic progression-free survival is defined as the time from randomisation to radiographic progression, as assessed by the investigator at local site per RECIST version 1.1 (soft tissue) and/or PCWG3 criteria (bone), or death due to any cause.
Measured: up to approximately 37 months
Radiographic Progression-free Survival (rPFS) in patients with mCRPC and PTEN-deficient tumours (IHC)
Radiographic progression-free survival is defined as the time from randomisation to radiographic progression, as assessed by the investigator at local site per RECIST version 1.1 (soft tissue) and/or PCWG3 criteria (bone), or death due to any cause.
Measured: up to approximately 37 months
Time to pain progression (TTPP) in the overall population
Time to pain progression (TTPP) based on a 2-point increase from baseline in the Brief Pain Inventory-Short Form (BPI-SF) Item 3 'pain at its worse in the last 24 hours' score (scale from 0 ["no pain"] to 10 ["pain as bad as you can imagine"]) and/or initiation of/increase in opioid analgesic use.
Measured: up to approximately 37 months
Time to first Symptomatic Skeletal-Related Event (SSRE) in the overall population
SSRE is defined as time from randomisation until any of the following: use of radiation therapy to prevent or relieve skeletal symptoms; Occurrence of new symptomatic pathological bone fractures; Occurrence of spinal cord compression; Orthopaedic surgical intervention for bone metastasis
Measured: up to approximately 46 months
Time to deterioration in urinary symptoms (TTDUS) in the overall population
Time to deterioration in urinary symptoms (TTDUS) is defined as time from randomization until the change from baseline reaches a clinically meaningful deterioration threshold using the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Prostate Questionnaire Urinary Symptoms (QLQ-PR25 (US)) subscale score (EORTC IL166), where the question responses are provided on a numerical rating scale ranging from 1 ("not at all") to 4 ("very much").
Measured: up to approximately 37 months
Time to deterioration in Physical Functioning (TTDPF) in the overall population
Time to deterioration in Physical Functioning (TTDPF) is defined as the time from randomization until the change from baseline reaches a clinically meaningful deterioration threshold using the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Physical Functioning (QLQ-C30 PF) subscale score (EORTC IL166), where the question responses are provided on a numerical rating scale ranging from 1 ("not at all") to 4 ("very much").
Measured: up to approximately 37 months
Overall Pain Severity and Pain Interference as assessed by BPI-SF questionnaire in the overall population
Change from baseline in Brief Pain Inventory-Short Form (BPI-SF) pain at its worse in the last 24 hours score (scale from 0 ["no pain"] to 10 ["pain as bad as you can imagine"]), pain severity (the mean of the four pain severity items each of which ranges from 0 ["no pain"] to 10 ["pain as bad as you can imagine"]) and interference domain scores (the mean of the seven pain interference items each of which ranges from 0 ["does not interfere"] to 10 ["completely interferes"]).
Measured: up to approximately 37 months
Plasma concentration of capivasertib derived from a population PK model in the overall population
Measured: pre dose (up to 90 minutes prior) and post dose (1 hour, 2 hours and 4 hours post dose)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Apr 2022
- Study start25 Mar 2022
- Primary completion4 Mar 2026 (estimated)
- Study completion4 Mar 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Prostate CancerStudies of the same condition, open and under way.
- More trials run by AstraZenecaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Approximately 1350 participants will be enrolled and screened to achieve a total of approximately 1000 assigned in a 1:1 ratio to one of the two parallel groups to receive either capivasertib or placebo, in combination with docetaxel on a background of ADT for the duration of the study.
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 1,035 participants (actual)
Sponsor and investigators
- Lead sponsor
- AstraZeneca
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05348577
- Sponsor's protocol ID
- D361EC00001
- Other IDs
- 2023-504996-26-00, 2021-005201-27, 2023
- Acronym
- CAPItello280
- Status last verified
- Jan 2025
- First submitted
- 18 Mar 2022
- Last updated
- 27 Jan 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal. All request will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.
Study at a glance
From the registry record, last updated by the sponsor on 27 Jan 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase III Double-Blind, Randomised, Placebo-Controlled Study Assessing the Efficacy and Safety of Capivasertib + Docetaxel Versus Placebo + Docetaxel as Treatment for Patients With Metastatic Castration Resistant Prostate Cancer (mCRPC)
- ClinicalTrials.gov ID
- NCT05348577
- Acronym / sponsor ID
- CAPItello280 / D361EC00001
- Conditions
- Prostate Cancer
- Keywords
- prostate cancer,, metastatic, castration resistant, capivasertib,, AKT inhibitor,, docetaxel
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 1,035 participants (actual)
- Lead sponsor
- AstraZenecaIndustry (pharma, biotech, devices)
- Study start
- 25 Mar 2022 (actual)
- Primary completion
- 4 Mar 2026 (estimated)
- Study completion
- 4 Mar 2026 (estimated)
- First posted
- 27 Apr 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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 and/or the radiographic progression free survival of study participants.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
- Model description
- Approximately 1350 participants will be enrolled and screened to achieve a total of approximately 1000 assigned in a 1:1 ratio to one of the two parallel groups to receive either capivasertib or placebo, in combination with docetaxel on a background of ADT for the duration of the study.
| Arm | Type | Receives |
|---|---|---|
| capivasertib + docetaxel | Experimental | Drug: capivasertib, Drug: docetaxelParticipants receive capivasertib in combination with docetaxel and steroids on a background of ADT. |
| placebo + docetaxel | Placebo comparator | Drug: docetaxel, Other: placeboParticipants receive placebo in combination with docetaxel and steroids on a background of ADT. |
Who may qualify
- Ages
- 18 to 130 years
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (11 listed)
- Histologically-confirmed prostate adenocarcinoma without predominant neuroendocrine or small cell cancers
- Metastatic disease documented prior to randomisation by clear evidence of ≥ 1 bone lesion (defined as 1 lesion with positive uptake on bone scan) and/or ≥ 1 soft tissue lesion (measurable or non-measurable)
- Patient must have been previously treated with a next generation hormonal agent (NHA), ie, abiraterone, enzalutamide, apalutamide or darolutamide, for prostate cancer for at least 3 months and shown evidence of disease progression (radiological or via PSA assessment) while receiving the NHA
- Evidence of mCRPC with progression of disease despite androgen deprivation therapy (ADT)
- Serum testosterone level ≤ 50 ng/dL
Key exclusion criteria (24 listed)
- 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:
- Clinically significant abnormalities of glucose metabolism as defined by any of the following:
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| capivasertib320 mg (2 tablets) BD given on an intermittent weekly dosing schedule. Patients will be dosed on Days 2 to 5, 9 to 12, and 16 to 19 in each week of a 21-day treatment cycle. Number of Cycles: until disease progression or unacceptable toxicity develops, death, or if the patient requests to stop the study treatment. | Drug | capivasertib + docetaxel |
| docetaxelPatients will receive docetaxel in intravenous infusion, 75 mg/m2 BSA, on Day 1 of the 21-day cycles for up to 6 to 10 cycles, according to standard of care practices. | Drug | capivasertib + docetaxel, placebo + docetaxel |
| placebomatched to capivasertib appearance (2 tablets) BD given orally on an intermittent weekly dosing schedule. Patients will be dosed on Days 2 to 5, 9 to 12, and 16 to 19 in each week of a 21-day treatment cycle. Number of Cycles: until disease progression or unacceptable toxicity develops, death, or if the patient requests to stop the study treatment. | Other | placebo + docetaxel |
Primary outcome
Overall Survival (OS) in the overall population
Time frame: up to approximately 46 months
Overall survival is defined as time from randomisation until the date of death due to any cause.
Radiographic Progression-free Survival (rPFS) in the overall population
Time frame: up to approximately 37 months
Radiographic Progression-free Survival (rPFS) is defined as time from randomization to radiographic progression as assessed by the investigator per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) for soft tissue and/or Prostate Cancer Working Group 3 (PCWG3) for bone or death due to any cause
10 secondary outcomes
Overall Survival (OS) in patients with mCRPC and PTEN-proficient tumours (IHC)
Time frame: up to approximately 46 months
Overall Survival (OS) in patients with mCRPC and PTEN-deficient tumours (IHC).
Time frame: up to approximately 46 months
Radiographic Progression-free Survival (rPFS) in patients with mCRPC and PTEN-proficient tumours (IHC)
Time frame: up to approximately 37 months
Radiographic Progression-free Survival (rPFS) in patients with mCRPC and PTEN-deficient tumours (IHC)
Time frame: up to approximately 37 months
Time to pain progression (TTPP) in the overall population
Time frame: up to approximately 37 months
Time to first Symptomatic Skeletal-Related Event (SSRE) in the overall population
Time frame: up to approximately 46 months
Time to deterioration in urinary symptoms (TTDUS) in the overall population
Time frame: up to approximately 37 months
Time to deterioration in Physical Functioning (TTDPF) in the overall population
Time frame: up to approximately 37 months
Overall Pain Severity and Pain Interference as assessed by BPI-SF questionnaire in the overall population
Time frame: up to approximately 37 months
Plasma concentration of capivasertib derived from a population PK model in the overall population
Time frame: pre dose (up to 90 minutes prior) and post dose (1 hour, 2 hours and 4 hours post dose)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Jan 2025.
- Individual participant dataSharing planned: Yes. Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal. All request will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
217 sites in 22 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing capivasertib and docetaxel in people with Prostate Cancer, run by AstraZeneca at 217 sites in 22 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 11 inclusion and 24 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 27 Jan 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 217 sites in United States, China, Brazil, Japan, France and 17 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Overall Survival (OS) in the overall population (time frame: up to approximately 46 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jan 2025.