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Capivasertib

Phase 3FDA approved

Hormone-Sensitive Prostate Cancer | Small molecule | Oncology |AstraZeneca PLC|Trials Updated: Sep 10, 2026

Capivasertib development status

FDA approval on record Nov 16, 2023 as Truqap
Approval holderAstrazeneca
ApplicationNDA218197
Highest phase Phase 3
Registered trials 33 across 13 sponsors since Oct 2010

Label indication TRUQAP is a kinase inhibitor indicated: HR positive, HER2 negative locally advanced or metastatic breast cancer • in combination with fulvestrant for the treatment of adult patients with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative, locally advanced or metastatic breast cancer with one or more PIK3CA/AKT1/PTEN -alterations as detected by an FDA-authorized test following… FDA label

Capivasertib target and mechanism

Molecular targetAKT2, AKT3, AKT1
Target classInhibitor
ModalitySmall molecule

Also known as AZD5363, [14C]AZD5363 (Capivasertib), Truqap

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials19
Total Enrollment5,206

FDA Designations

No designations recorded

Capivasertib clinical trials

Capivasertib · 19 trials · 41 indications

Phase 3 6Phase 2 3Phase 1 10
NCT07281833Phase III Study to Evaluate the Safety, Efficacy, and Impact on Quality of Life of Capivasertib Alongside Standard-of-care Endocrine Treatment in Patients With HR+/HER2- Advanced Breast Cancer and Progression on Prior Endocrine-based TreatmentBreast Cancer
RECRUITING250 Analytics
NCT06635447Capivasertib+Fulvestrant asTreatment for Locally Advanced(Inoperable) or Metastatic HR+/HER2- Breast Cancer in Chinese PatientsBreast Cancer
ACTIVE NOT_RECRUITING293 Analytics
NCT05348577Study of Capivasertib + Docetaxel vs Placebo + Docetaxel as Treatment for Metastatic Castration Resistant Prostate Cancer (mCRPC)Prostate Cancer
ACTIVE NOT_RECRUITING1,035 Analytics
NCT04862663Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)Locally Advanced (Inoperable) or Metastatic Breast Cancer
ACTIVE NOT_RECRUITING893 Analytics
NCT04493853Capivasertib+Abiraterone as Treatment for Patients With Metastatic Hormone-sensitive Prostate Cancer and PTEN DeficiencyHormone-Sensitive Prostate Cancer
ACTIVE NOT_RECRUITING1,012 Analytics
NCT03997123Capivasertib+Paclitaxel as First Line Treatment for Patients With Locally Advanced or Metastatic TNBCTriple Negative Breast Neoplasms
ACTIVE NOT_RECRUITING923 Analytics
PHASE3RECRUITING
Phase III Study to Evaluate the Safety, Efficacy, and Impact on Quality of Life of Capivasertib Alongside Standard-of-care Endocrine Treatment in Patients With HR+/HER2- Advanced Breast Cancer and Progression on Prior Endocrine-based Treatment
Breast CancerUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Capivasertib+Fulvestrant asTreatment for Locally Advanced(Inoperable) or Metastatic HR+/HER2- Breast Cancer in Chinese Patients
Breast CancerUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Study of Capivasertib + Docetaxel vs Placebo + Docetaxel as Treatment for Metastatic Castration Resistant Prostate Cancer (mCRPC)
Prostate CancerUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)
Locally Advanced (Inoperable) or Metastatic Breast CancerUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Capivasertib+Abiraterone as Treatment for Patients With Metastatic Hormone-sensitive Prostate Cancer and PTEN Deficiency
Hormone-Sensitive Prostate CancerUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Capivasertib+Paclitaxel as First Line Treatment for Patients With Locally Advanced or Metastatic TNBC
Triple Negative Breast NeoplasmsUnlock trial analytics

Study Endpoints

Primary Endpoints

Superiority* of TTNT1 in patients receiving capivasertib compared to an evidence-based "standard TTNT1 curve" for patients without capivasertib.
Last-patient-in plus 12 months

* Statistical comparison by survival modelling of time on treatment including competing risks. * Standard curve is derived from placebo + fulvestrant arm of CAPItello-291 trial and corresponds to 17% remaining "on-treatment" at 12 months. * Stratification by eHealth support vs. no eHealth support

Superiority* of PRO-adherence compared to non-adherence regarding TTDQoL (aka DQoL-free interval).
through study completion, after 170 total DQoL-events occurred

* The event DQoL is defined in terms of a 10-point drop of the FACT-G score compared to baseline. * A patient is classified here as "PRO-non-adherent" if she does not use CANKADO on 60 or more of the first 90 days, otherwise as "PRO-adherent".

Time to first subsequent treatment (TFST) of PIK3CA/AKT1/PTEN-altered population in Cohort 1
From the first dose of study intervention to the earlier of start date of the first subsequent therapy after discontinuation of study intervention, or death in PIK3CA/AKT1/PTEN-altered population in Cohort 1, up to approximately 2 years

To assess the efficacy of capi+ful by assessment of TFST (Time to first subsequent treatment) of PIK3CA/AKT1/PTEN-altered subgroup in cohort1

Overall Survival (OS) in the overall population
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
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

Phase Ib: 1. The number of participants with dose-limiting toxicity, as defined in the protocol.
Within the first 28 day cycle.

Dose-limiting toxicity as described in the protocol that is not related to disease progression, intercurrent illness or concomitant medications and that, despite optimal therapeutic intervention, meets protocol-defined criteria.

Phase Ib: 2. The number of participants with treatment-related adverse events.
From baseline up to approximately 36 months.

Data will include clinical observations, ECG parameters, clinical chemistry and haematology and vital signs assessed as the number of participants with treatment-related adverse events.

Phase Ib: 3. The number of participants with treatment-related serious adverse events.
From baseline up to approximately 36 months.

Data will include clinical observations, ECG parameters, clinical chemistry and haematology and vital signs assessed as the number of participants with treatment-related adverse events.

Phase III: 1. Progression Free Survival (PFS).
Up to approximately 47 months.

Progression Free Survival (PFS) is defined as time from randomization until progression per RECIST v1.1. as assessed by BICR or death due to any cause in the overall population, the altered population, and the confirmed non-altered population. RECIST related endpoints such as PFS, ORR, DoR, CBR will be collected.

Radiographic Progression-free Survival (rPFS)
Tumor assessments every 16 weeks from randomisation until radiographic progression assessed by the investigator. The timing of the Primary analysis DCO for rPFS is approximately 49 months from the first subject randomized

rPFS is defined as the time from randomisation to radiographic progression, as assessed by the investigator per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST) for soft tissue and/or Prostate Cancer Working Group 3 (PCWG3) for bone, or death due to any cause for each study arm.

Overall Survival (OS)
The time from date of randomisation to the date of death due to any cause up to approximately 42 months
Number of patients who experience grade 2 or greater diarrhea as assessed by Common Terminology Criteria for Adverse Events (CTCAE) v4.0
At the eight-week mark from the commencement of the capivasertib treatment in the study

The study aims to evaluate the effectiveness of prophylactic strategies to mitigate diarrhea in patients receiving capivasertib in combination with fulvestrant for hormone receptor-positive (HR+), HER2-negative advanced breast cancer. Toxicities will be graded on the following scale: grade 1 mild, grade 2 moderate, grade 3 severe, grade 4 life threatening/disabling and grade 5 death related to AE.

Number of patients who experience grade 2 or greater rash as assessed by Common Terminology Criteria for Adverse Events (CTCAE) v4.0
At the eight-week mark from the commencement of the capivasertib treatment in the study

The study aims to evaluate the effectiveness of prophylactic strategies to mitigate rash in patients receiving capivasertib in combination with fulvestrant for hormone receptor-positive (HR+), HER2-negative advanced breast cancer. Toxicities will be graded on the following scale: grade 1 mild, grade 2 moderate, grade 3 severe, grade 4 life threatening/disabling and grade 5 death related to AE

To assess complete cell cycle arrest (CCCA).
Up to 14 weeks

The primary endpoint CCCA is defined as Ki67 drop to \<2.7% after approximately 10 weeks (will be assessed centrally on the breast tissue submitted to central pathology)

Objective Response Rate
First dose until progression of disease [PD] or last evaluable assessment in the absence of progression or data cut-off date (21.6 Months)

Objective response rate is defined as the proportion of patients achieving either complete response (CR) or partial response (PR) according to the Lugano 2014 Classification for non-Hodgkin lymphoma (NHL) as assessed by blinded independent central review (BICR).

Phase I: Maximum tolerated dose (MTD) / Recommended phase 2 dose (RP2D).
2 years

Defined as the highest dose level tested at which 0/6 or 1/6 patients experiences dose limiting toxicities (DLT) during course 1 with at least 2 patients experiencing DLT at the next higher dose.

Phase II: Best Overall Response Rate (ORR).
4 years

For patients with leukemia: CR and MRD response after 1 cycle of treatment. This includes determination of CR, CRp, CRi and minimal residual disease (MRD) negativity rate in patients suffering from overt morphological relapse of T-ALL at time of enrolment (morphological disease (M2/M3)), and the MRD negativity rate in those that entered with high-MRD levels but in morphological CR. These results will together be presented as a composite endpoint Overall Response rate (ORR). MRD negativity will be defined as ≤1x10-4 as generated by multi-parameter flow cytometry. For patients with lymphoma: Response in LBL patients is defined as CR, PR, minor response (MR) as defined in International pediatric NHL response criteria. In case of bone-marrow involvement MRD will be taken into account. For patients with lymphoma: Response in LBL patients is defined as CR, PR, minor response (MR) as defined in International pediatric NHL response criteria.

Area under concentration time curve from zero to infinity (AUCinf)
From Day 1 to Day 4

To compare the PK (AUCinf) of a single oral dose of capivasertib in participants with moderate hepatic impairment to participants with normal hepatic function.

Area under concentration-curve from time 0 to the last quantifiable concentration (AUClast)
From Day 1 to Day 4

To compare the PK (AUClast) of a single oral dose of capivasertib in participants with moderate hepatic impairment to participants with normal hepatic function.

Maximum plasma drug concentration (Cmax)
From Day 1 to Day 4

To compare the PK (Cmax) of a single oral dose of capivasertib in participants with moderate hepatic impairment to participants with normal hepatic function.

Midazolam AUCinf
Cycle 1 Day 1, Cycle 1 Day 2, Cycle 1 Day 8, Cycle 1 Day 9, Cycle 1 Day 12 and Cycle 1 Day 13 (Cycle 1 is 29 days)

Area under the plasma concentration-time curve from zero to infinity

Midazolam Cmax
Cycle 1 Day 1, Cycle 1 Day 2, Cycle 1 Day 8, Cycle 1 Day 9, Cycle 1 Day 12 and Cycle 1 Day 13 (Cycle 1 is 29 days)

Maximum observed plasma (peak) drug concentration

Cmax of Capivasertib
Part 1 and Part 2: From Day 1 to Day 3

Maximum observed plasma (peak) drug concentration (Cmax) of capivasertib when administered alone under fed and fasted conditions, and in combination with acid reducing agent(s) rabeprazole and famotidine (if required).

AUCinf of Capivasertib
Part 1 and Part 2: From Day 1 to Day 3

Area under plasma concentration time curve from zero to infinity (AUCinf) of capivasertib when administered alone under fed and fasted conditions, and in combination with acid reducing agent(s) rabeprazole and famotidine (if required).

AUClast of Capivasertib
Part 1 and Part 2: From Day 1 to Day 3

Area under the plasma concentration curve from zero to the last quantifiable concentration (AUClast) of capivasertib when administered alone under fed and fasted conditions, and in combination with acid reducing agent(s) rabeprazole and famotidine (if required).

Area under the plasma concentration-time curve from time zero to 12 hours post-dose (AUC 0-12) of Capivasertib
first dose up to approximately 6 months

AUC0-12 is defined as area under the curve from 0 to 12 hours.

Maximum plasma concentration (Cmax) of Capivasertib
first dose up to approximately 6 months

Cmax is defined as maximum plasma concentration

terminal half-life (t1/2) of Capivasertib
first dose up to approximately 6 months

t1/2 is defined as terminal half-life

Accumulation ratio (Rac) of Capivasertib
first dose up to approximately 6 months

Rac is defined as accumulation ratio

Area under plasma concentration-time curve from zero to infinity (AUCinf) of capivasertib
Pre-dose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 24, 36, and 48 hours after capivasertib dose on Day 1 and Day 6

Assessment of AUCinf of capivasertib.

Maximum observed plasma (peak) drug concentration (Cmax) of capivasertib
Pre-dose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 24, 36, and 48 hours after capivasertib dose on Day 1 and Day 6

Assessment of Cmax of capivasertib.

Number of patients with dose limiting toxicity (DLT) for Part A1
Day 1 to day 56 for Part A1

A DLT is defined as an AE that occurs from the first dose of study treatment up to and including the last day of the DLT period (day 1 to day 56 for Part A1) that is assessed as unrelated to the disease, intercurrent illness, or concomitant medications and that, despite optimal therapeutic interventions, meets any of the criteria defined in the protocol.

Number of patients with DLT for Part A2
Day 1 to day 28 for Part A2

A DLT is defined as an AE that occurs from the first dose of study treatment up to and including the last day of the DLT period (day 1 to day 28 for Part A2) that is assessed as unrelated to the disease, intercurrent illness, or concomitant medications and that, despite optimal therapeutic interventions, meets any of the criteria defined in the protocol.

Number of patients with adverse events
For each treatment combination, from screening (Day -28 to -1) either for up to 1.5 years or up to 30 days follow-up period after discontinuation

To investigate the safety and tolerability of capivasertib when given in combination with novel agents (enzalutamide and abiraterone) to patients with metastatic CRPC.

Ratio of Css,Max for Day 4 to Day 11
Day 4 and Day 11

The actual sampling times were used in the pharmacokinetics (PK) parameter calculations and PK parameters were derived using standard non-compartmental methods. Following the twice daily dosing in Cycle 1 at Day 4 and 11 for both the formulation switch and food effect investigations, the following PK parameters have been determined: Maximum plasma concentration at steady state (Css max), time to Css,max (tss max), minimum plasma concentration at steady state (Css min), area under the plasma concentration-time curve from zero to the end of the dosing interval (AUCss) and apparent clearance (CLss/F). Css max, tss max were determined by inspection of the concentration-time profiles. AUCss was calculated using the linear up / log down trapezoidal rule. CLss/F was determined from the ratio of dose/AUCss. Ratio of Css,max for Day 4 to Day 11 have been derived.

Ratio of AUCss for Day 4 to Day 11
Day 4 and Day 11

The actual sampling times were used in the parameter calculations and PK parameters were derived using standard non-compartmental methods. Following the twice daily dosing in Cycle 1 at Day 4 and 11 for both the formulation switch and food effect investigations, the following PK parameters have been determined: Css max, tss max, Css min, area under the plasma concentration-time curve from zero to the end of the dosing interval (AUCss) and CLss/F. Css max, tss max were determined by inspection of the concentration-time profiles. AUCss was calculated using the linear up / log down trapezoidal rule. CLss/F was determined from the ratio of dose/AUCss. Ratio of AUCss for Day 4 to Day 11 have been derived.

To investigate the safety and tolerability of AZD5363 to define a Recommended Dose (RD) when given orally
All AEs will be collected throughout the study, from informed consent until 30 days after the end of study treatment. The total duration of this time frame can not be specified, as it depends on the number of treatments the subject may receive

To investigate the safety and tolerability of AZD5363 to define a Recommended Dose (RD) when given orally, either as a continuous or an intermittent schedule, for further clinical evaluation when given to Japanese patients with advanced solid malignancies

Parts A,B,C,D,E & F : Safety and tolerability of AZD5363 in terms of adverse events and serious adverse events
Adverse events, serious adverse events and deaths will be collected from screening to 28 days after study drug discontinuation.
Parts A,B,C,D,E & F : Safety and tolerability of AZD5363 in terms of death
Deaths will be collected from screening to 28 days after study drug discontinuation
Parts A,B,C,D,E & F: Safety and tolerability of AZD5363 by assessing changes from baseline of laboratory data (clinical chemistry, haematology, urinalysis)
Laboratory data will be collected from screening to 28 days after study drug discontinuation
Parts A,B,C,D,E & F: Safety and tolerability of AZD5363 in terms of changes from baseline in vital signs and in electrocardiogram (ECG) parameters
Vital signs and ECGs will be recorded from screening to 28 days after study drug discontinuation
Parts A,B,C,D,E & F: Safety and tolerability of AZD5363 by assessing changes from baseline in electrocardiogram (ECG) parameters
ECGs will be collected from screening to 28 days after study drug discontinuation.
Parts A,B,C,D,E & F: Safety and tolerability of AZD5363 by assessing changes from baseline of glucose laboratory parameters (Urine, serum and plasma glucose, glycosylated haemoglobin).
Glucose parameters will be collected from screening to 28 days after study discontinuation.
Parts A,B,C,D,E & F: Safety and tolerability of AZD5363 by assessing left ventricular ejection fraction (LVEF).
Multiple Gated Acquisition (MUGA) or Echocardiogram assessments to be carried out from screening until study drug discontinuation

Secondary Endpoints

Progression-free survival (PFS): defined by either: • evidence of disease progression as assessed by treating physician or • death
From date of inclusion until the date of first documented progression, assessed up to 60 months
Overall survival (OS)
From date of inclusion until the date of first documented progression, assessed up to 60 months
Superiority of eHealth support (and summary statistics) regarding TTDQoL compared to patients entering the trial without eHealth support.**
From date of inclusion until the date of first documented progression, assessed up to 60 months
Unlock Study Endpoints

Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
CapivasertibEXPERIMENTAL2x400 mg, peroral, for 4 days, followed by 3 days off treatment
Cohort 1EXPERIMENTALCapivasertib+Fulvestrant
Cohort 2EXPERIMENTALCapivasertib+Fulvestrant
capivasertib + docetaxelEXPERIMENTALParticipants receive capivasertib in combination with docetaxel and steroids on a background of ADT.
placebo + docetaxelPLACEBO_COMPARATORParticipants receive placebo in combination with docetaxel and steroids on a background of ADT.
Capivasertib Plus Palbociclib and FulvestrantEXPERIMENTALCapivasertib Plus Palbociclib and Fulvestrant (Ph 1b)
Capivasertib Plus Ribociclib and FulvestrantEXPERIMENTALCapivasertib Plus Ribociclib and Fulvestrant (Ph 1b)
Capivasertib Plus Abemaciclib and FulvestrantEXPERIMENTALCapivasertib Plus Abemaciclib and Fulvestrant (Ph 1b)
Capivasertib Plus Fulvestrant and Investigator's choice of CDK4/6i (palbociclib or ribociclib)EXPERIMENTALCapivasertib Plus Fulvestrant and Investigator's choice of CDK4/6i (palbociclib or ribociclib) (Ph III)
Fulvestrant and Investigator's choice of CDK4/6i (palbociclib or ribociclib)ACTIVE_COMPARATORFulvestrant and investigator's choice of CDK4/6i (palbociclib or ribociclib) (Ph III)
Capivasertib + AbirateroneEXPERIMENTALParticipants receive capivasertib in combination with abiraterone (prednisone/prednisolone) on a background of ADT.
Placebo + AbirateronePLACEBO_COMPARATORParticipants receive placebo in combination with abiraterone (prednisone/prednisolone) on a background of ADT.
Capivasertib + PaclitaxelEXPERIMENTALPaclitaxel: Intravenous infusion. 3 consecutive weekly infusions of 80 mg/m2 (given on Day 1 of Weeks 1, 2, and 3), followed by 1 week off-treatment within each 28-day treatment cycle. Capivasertib: Oral tablets. 400 mg of Capivasertib (2 tablets) BD given on an intermittent weekly dosing schedule. Dosed on Days 2 to 5 of Weeks 1, 2, and 3 followed by 1 week off-treatment within each 28-day treatment cycle.
Placebo + PaclitaxelPLACEBO_COMPARATORPaclitaxel: Intravenous infusion. 3 consecutive weekly infusions of 80 mg/m2 (given on Day 1 of Weeks 1, 2, and 3), followed by 1 week off-treatment within each 28-day treatment cycle. Placebo: Oral tablets. 400 mg of Placebo (2 tablets) BD given on an intermittent weekly dosing schedule. Dosed on Days 2 to 5 of Weeks 1, 2, and 3 followed by 1 week off-treatment within each 28-day treatment cycle.
Rash and diarrhea prophylaxisEXPERIMENTALAll participants will receive capivasertib + fulvestrant. Capivasertib will be administered at 400 mg orally, twice daily (BID), on 4-days-on/3-days-off schedule. Fulvestrant will be administered at 500 mg intramuscularly (IM) every 14 days for the first three injections, and every 28 days thereafter. Participants in this arm will take cetirizine 10 mg orally once daily, and loperamide 2 mg orally once daily on capivasertib dosing days, starting on Cycle 1 Day 1 and continued for the first eight weeks (each cycle = 28 days).
Rash prophylaxisEXPERIMENTALAll participants will receive capivasertib + fulvestrant. Capivasertib will be administered at 400 mg orally, twice daily (BID), on 4-days-on/3-days-off schedule. Fulvestrant will be administered at 500 mg intramuscularly (IM) every 14 days for the first three injections, and every 28 days thereafter. Participants will take cetirizine 10 mg orally once daily, starting on Cycle 1 Day 1 and continued for the first eight weeks (each cycle = 28 days).
Arm AEXPERIMENTALCapivasertib (400 mg po twice daily d1-4 followed by 3 days off) for 2 weeks followed by capivasertib (400 mg po twice daily d1-4 followed by 3 days off) and fulvestrant (500 mg i.m. q28d, with an additional 500 mg dose given two weeks after the initial dose) for additional 8 weeks (overall 4 administrations of fulvestrant)
Arm BACTIVE_COMPARATORFulvestrant (500mg i.m. q28d, with an additional 500 mg dose given two weeks after the core biopsy and the initial dose) for 10 weeks (overall 4 administrations)
Capivasertib monotherapyEXPERIMENTALParticipants with R/R FL, R/R MZL, and R/R MCL will receive capivasertib orally until progression of disease (PD) or unacceptable toxicity.
Capivasertib + Venetoclax + DexamethasoneEXPERIMENTALSub-study E: Each cycle lasts 28 days. Cycle 1: All patients in cycle 1 will receive 4 blocks of of capivasertib (days D4-7, 11-14, 18-21, 25-28), 28 days of venetoclax (days 1-28), and one block of seven days of dexamethasone (days 1-7). A 1-day venetoclax ramp-up is proposed in this study. Cycle 2 and subsequent cycles: similar to cycle 1. Patients in dose level -1, receive a lower dose of venetoclax. Patients in dose level 2 receive a higher dose of capivasertib. All patients receive age adapted intrathecal chemotherapy.
Test: Capivasertib in Moderate hepatic impairmentEXPERIMENTALParticipants with moderate hepatic impairment will receive a single dose of capivasertib.
Control: Capivasertib in Normal hepatic functionEXPERIMENTALParticipants with normal hepatic function will receive a single dose of capivasertib.
Treatment (Midazolam + Capivasertib)EXPERIMENTALMidazolam will be administered on Cycle 1 Day 1 and Cycle 1 Day 8. Capivasertib will be administrated from Cycle 1 Day 2 as an intermittent schedule (4 days on/3 days off) until discontinuation. On Cycle 1 Day 12, Midazolam will be administrated with Capivasertib.
Treatment ABCEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment A, Treatment B and Treatment C.
Treatment ACBEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment A, Treatment C and Treatment B.
Treatment BACEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment B, Treatment A and Treatment C.
Treatment BCAEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment B, Treatment C and Treatment A.
Treatment CABEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment C, Treatment A and Treatment B.
Treatment CBAEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment C, Treatment B and Treatment A.
Treatment DEFEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment D, Treatment E and Treatment F.
Treatment DFEEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment D, Treatment F and Treatment E.
Treatment EDFEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment E, Treatment D and Treatment F.
Treatment EFDEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment E, Treatment F and Treatment D.
Treatment FDEEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment F, Treatment D and Treatment E.
Treatment FEDEXPERIMENTALParticipants will be randomized to receive oral doses of Treatment F, Treatment E and Treatment D.
Capivasertib + ItraconazoleEXPERIMENTALSubjects will receive a single oral dose of capivasertib on Day 1 during treatment period 1, itraconazole on Days 3, 4, and 5 during treatment period 2, and single oral dose of capivasertib plus a dose of itraconazole on Day 6, followed by itraconazole alone on Day 7 during treatment period 3.
Part A1: Capivasertib + enzalutamideEXPERIMENTALFrom day 1 to day 28 of this study treatment, patients will continuously enroll on a starting dose of capivasertib in combination with 160 mg enzalutamide.
Part A1: Capivasertib dose level 1 + enzalutamideEXPERIMENTALOn day 29 of the treatment, patients will escalate the capivasertib dose to dose level+1 along with 160 mg enzalutamide.
Part A1: Capivasertib dose level 2 + enzalutamideEXPERIMENTALOn day 29 of the treatment, patients will escalate the capivasertib dose to dose level+2 along with 160 mg enzalutamide.
Part A2: Capivasertib + abirateroneEXPERIMENTALPatients will continuously enroll on a starting dose of capivasertib in combination with 1000 mg abiraterone.
Part B1: Capivasertib + enzalutamideEXPERIMENTALThis optional expansion will treat patients at the recommended dose regimen of capivasertib and enzalutamide.
Part B2: Capivasertib + abirateroneEXPERIMENTALThis optional expansion will treat patients at the recommended dose regimen of capivasertib and abiraterone.
Part A: Formulation SwitchEXPERIMENTALAZD5363 tablet twice daily followed by AZD5363 capsule twice daily on an intermittent regimen (4 days on, 3 days off).
Part B: Food effectEXPERIMENTALAZD5363 tablet twice daily on an intermittent regimen (4 days on, 3 days off) with/without food on one occasion
AZD5363EXPERIMENTALAscending doses of AZD5363 administered orally to patients to define the maximum tolerated dose (MTD)
Part A and B Schedule 1, Continuous dosingEXPERIMENTALPart A: Ascending doses of AZD5363 administered orally, every day to define the maximum tolerated dose. Part B: Dose expansion phase, at the defined maximum tolerated dose or recommended dose from Part A.
Parts A,B,C,D Schedule 2, Intermittent dosingEXPERIMENTALPart A: Ascending doses of AZD5363 administered orally, twice daily, on a 7-day repeating regimen (4 days on, 3 days off and 2 days on, 5 days off), to define the maximum tolerated dose. Part B: Dose expansion phase, at the defined maximum tolerated dose or recommended dose from Part A (4 days on, 3 days off and 2 days on, 5 days off). Part C and D: AZD5363 orally, twice daily on an intermittent regimen (4 days on, 3 days off).
Parts A and B Schedule 3, Intermittent dosing.EXPERIMENTALPart A: Ascending doses of AZD5363 administered orally, twice daily, on an alternative weekly regimen. Initiation of Schedule 3 is dependant on emerging clinical data. Part B: Dose expansion phase, at the defined maximum tolerated dose or recommended dose from Part A
Parts E and F, Intermittent dosing with FulvestrantEXPERIMENTALOral AZD5363 twice daily, 4 days on treatment, 3 days off treatment to cessation of therapy combined with background therapy of fulvestrant at its licensed dose of 500mg intramuscularly on days 1,15,29 and once monthly thereafter to cessation of therapy.

Interventions

NameTypeDescription
CapivasertibDRUG2x400 mg, peroral, for 4 days, followed by 3 days off treatment
FulvestrantDRUGFulvestrant IV
docetaxelDRUGPatients 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.
placeboOTHERmatched 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.
PalbociclibDRUGPhase Ib: 100 mg/ 125 mg. Once daily for 21 consecutive days followed by 7 days off treatment to comprise a complete 28-day cycle Phase III: Administered once daily for 21 days of 28-day cycle, at the dose of 125 mg.
RibociclibDRUGPhase Ib: 200 mg/ 400 mg/ 600 mg. Once daily for 21 consecutive days followed by 7 days off treatment to comprise a complete 28-day cycle Phase III: Administered once daily for 21 days of 28-day cycle, at the dose confirmed in the phase 1b portion.
AbemaciclibDRUGPhase Ib: 50 mg/ 100 mg/ 150 mg. Twice daily for 28 consecutive days to comprise a complete 28-day cycle
Abiraterone AcetateDRUGAdministered orally as tablets at a dosage of 1000 mg daily. Administered continuously until criteria for discontinuation are met.
PaclitaxelDRUG80 mg/m2 concentrate for solution for infusion, 3 consecutive weekly infusions of 80 mg/m2 (given on Day 1 of Weeks 1, 2, and 3), followed by 1 week off-treatment within each 28-day treatment cycle. Paclitaxel treatment will be continued for at least 6 cycles unless the patient experiences unacceptable toxicity that is attributed directly to treatment with paclitaxel.
LoperamideDRUG2 mg orally once daily on capivasertib dosing days
CeterizineDRUG10 mg orally once a day, starting on Cycle 1 Day 1 and continued for the first eight weeks (each cycle=28 days)
Fulvestrant injectionDRUGfind arm B description
VenetoclaxDRUGOral
DexamethasoneDEVICEoral/intravenous
Intrathecal chemotherapyDRUGIT: Methotrexate +/- prednisone/hydrocortisone/cytarabine according to the degree of central nervous involvement
MidazolamDRUGSingle doses of midazolam (syrup, 1 mg) will be given on cycle 1 Days 1, 8, and 12.
RabeprazoleDRUGParticipants will receive twice daily oral doses of rabeprazole for 3 days (Days -3 to -1) and a single dose on the morning of Day 1 for Treatment C.
ItraconazoleDRUGSubjects will be administered itraconazole twice daily on Day 3, followed by once daily doses in the morning for 4 days.
EnzalutamideDRUGPatients will receive 160 mg oral dose of enzalutamide.
AbirateroneDRUGPatients will receive 1000 mg oral dose of abiraterone.
AZD5363DRUGOral AZD5363 twice daily, 4 days on 3 days off: tablet formulation for one week, followed by two weeks with capsule formulation.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites16

Inclusion Criteria: 1. Females (≥18 years, pre-, peri- or post-menopausal) and males (≥18 years) at the time of signing the informed consent form a. Pre-menopausal (and peri-menopausal, i.e., those that do not meet the criteria for post menopausal defined below) women can be enrolled if amenabl...

Countries:BelgiumGermanyPortugalChinaUnited StatesAustraliaBrazilCanadaChileCzechiaFranceGreeceHungaryIndiaIsraelJapanMexicoNetherlandsPolandSouth KoreaSpainTaiwanTurkey (Türkiye)United KingdomArgentinaDenmarkItalyMalaysiaSwedenThailandVietnamAustriaBulgariaHong KongPeruPhilippinesRussiaSlovakiaSouth AfricaColombiaSaudi ArabiaSingapore
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Recent Changes (Last 90 Days)

LOWSep 10, 2026NCT04493853lastUpdatePostDate: changed
LOWSep 10, 2026NCT04493853lastUpdatePostDate: changed
LOWSep 9, 2026NCT07343960lastUpdatePostDate: changed
LOWSep 9, 2026NCT07343960lastUpdatePostDate: changed
MEDIUMAug 17, 2026NCT04862663Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWAug 17, 2026NCT06635447Enrollment: 258 → 293
MEDIUMAug 17, 2026NCT04862663Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWAug 17, 2026NCT06635447Enrollment: 258 → 293

Frequently asked questions about Capivasertib

What is Capivasertib?

Capivasertib is an investigational small molecule AKT inhibitor being developed by AstraZeneca PLC (ticker AZN) for oncology indications. It is being studied in breast cancer, acute lymphoblastic leukemia, advanced solid tumors, and hormone-sensitive prostate cancer. It is a biomarker-selected therapy, meaning trial enrollment is guided by molecular markers rather than an unselected patient population.

What does Capivasertib target?

Capivasertib targets AKT1, AKT2, and AKT3, the three isoforms of the AKT kinase. It acts as an inhibitor of these targets. By binding AKT isoforms, the drug is designed to interfere with AKT-mediated signaling, a pathway frequently dysregulated in cancers. This mechanism underlies its development across solid tumors and hematologic malignancies.

What is Capivasertib used for in breast cancer?

Capivasertib is being evaluated in HR-positive, HER2-negative advanced and metastatic breast cancer, including patients whose disease has progressed on prior endocrine-based treatment. A Phase III trial (NCT07281833) is studying it alongside standard-of-care endocrine therapy. A separate Phase II trial (NCT07426822) is assessing rash and diarrhea prophylaxis in metastatic HR+/HER2- breast cancer.

Who makes Capivasertib?

Capivasertib is developed by AstraZeneca PLC, which trades under the ticker AZN. AstraZeneca is the sponsor of the clinical program, which includes trials in breast cancer, acute lymphoblastic leukemia, advanced solid tumors, and prostate cancer, as well as a pharmacokinetic study in patients with moderate hepatic impairment.

What phase is Capivasertib in?

Capivasertib is in clinical development across multiple phases. The program includes Phase I studies in hepatic impairment and pediatric relapsed or refractory hematological malignancies, a Phase II prophylaxis study in breast cancer, and a Phase III study in HR+/HER2- advanced breast cancer. It is investigational and has not been approved by the FDA for these uses.

What clinical trials is Capivasertib in?

Capivasertib is being studied in several trials, including NCT07281833, a Phase III trial in HR+/HER2- advanced breast cancer; NCT07426822, a Phase II rash and diarrhea prophylaxis study; NCT07343960, a Phase I pharmacokinetic study in moderate hepatic impairment; and NCT07175415, a Phase I pediatric study in relapsed or refractory hematological malignancies.

Is Capivasertib the same as AZD5363?

Yes, Capivasertib is also known as AZD5363. The name AZD5363 is an earlier development code used by AstraZeneca, and it refers to the same investigational AKT inhibitor. A radiolabeled version, [14C]AZD5363 (Capivasertib), has also been referenced in study documentation.