NCT04305496

Brief Summary

Phase III, double-blind, randomised study assessing the efficacy of capivasertib + fulvestrant vs placebo + fulvestrant for the treatment of patients with locally advanced (inoperable) or metastatic HR+/HER2- breast cancer following recurrence or progression on or after AI therapy.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Strong global presence with extensive site network
Enrollment
818

participants targeted

Target at P75+ for phase_3

Timeline
1mo left

Started Apr 2020

Longer than P75 for phase_3

Geographic Reach
19 countries

215 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress98%
Apr 2020Jun 2026

First Submitted

Initial submission to the registry

February 20, 2020

Completed
21 days until next milestone

First Posted

Study publicly available on registry

March 12, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

April 16, 2020

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 9, 2023

Completed
2.5 years until next milestone

Results Posted

Study results publicly available

October 27, 2025

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 22, 2026

Expected
Last Updated

April 30, 2026

Status Verified

April 1, 2026

Enrollment Period

3.1 years

First QC Date

February 20, 2020

Results QC Date

August 15, 2023

Last Update Submit

April 29, 2026

Conditions

Keywords

Locally advanced (inoperable) or Metastatic Breast Cancer

Outcome Measures

Primary Outcomes (8)

  • Progression Free Survival: Overall Population (Months) in the Global Cohort

    Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause, in the global cohort. Participants who discontinue treatment prior to progression should continue to be scanned until progression. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) as at least a 20% increase in the sum of the longest diameter of target lesions (short axis diameter used for lymph nodes), or clinically significant increase in a non-target lesion, or the appearance of a new lesion(s).

    Assessed every 8 weeks for the first 18 months and every 12 weeks thereafter, from randomization to radiological progression.

  • Progression Free Survival: Overall Population (Percentage) in the Global Cohort

    Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) as at least a 20% increase in the sum of the longest diameter of target lesions (short axis diameter used for lymph nodes), or clinically significant increase in a non-target lesion, or the appearance of a new lesion(s). Participants who discontinue treatment prior to progression should continue to be scanned until progression. Kaplan-Meier estimate was used.

    Assessed every 8 weeks for the first 18 months and every 12 weeks thereafter, from randomization to radiological progression.

  • Progression Free Survival: Altered Population (Months) in the Global Cohort

    Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause.

    Assessed every 8 weeks for the first 2 years following objective disease progression or treatment discontinuation and then every 12 weeks.

  • Progression Free Survival: Altered Population (Percentage) in the Global Cohort

    Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause. Kaplan-Meier estimate was used.

    Assessed every 8 weeks for the first 2 years following objective disease progression or treatment discontinuation and then every 12 weeks.

  • Progression Free Survival: Overall Population (Months) in the China Cohort

    Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause, in the global cohort. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) as at least a 20% increase in the sum of the longest diameter of target lesions (short axis diameter used for lymph nodes), or clinically significant increase in a non-target lesion, or the appearance of a new lesion(s). Participants who discontinue treatment prior to progression should continue to be scanned until progression.

    Assessed every 8 weeks for the first 18 months and every 12 weeks thereafter, from randomization to radiological progression.

  • Progression Free Survival: Overall Population (Percentage) in the China Cohort

    Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) as at least a 20% increase in the sum of the longest diameter of target lesions (short axis diameter used for lymph nodes), or clinically significant increase in a non-target lesion, or the appearance of a new lesion(s). Participants who discontinue treatment prior to progression should continue to be scanned until progression. Kaplan-Meier estimate was used.

    Assessed every 8 weeks for the first 18 months and every 12 weeks thereafter, from randomization to radiological progression.

  • Progression Free Survival: Altered Population (Months) in the China Cohort

    Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause.

    Assessed every 8 weeks for the first 2 years following objective disease progression or treatment discontinuation and then every 12 weeks.

  • Progression Free Survival: Altered Population (Percentage) in the China Cohort

    Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause Kaplan-Meier estimate was used.

    Assessed every 8 weeks for the first 2 years following objective disease progression or treatment discontinuation and then every 12 weeks.

Study Arms (2)

Capivasertib + fulvestrant

EXPERIMENTAL

Fulvestrant: 2 intramuscular injections of 500 mg given on Day 1 of Weeks 1 and 3 of cycle 1, and then on Day 1, Week 1 of each cycle thereafter. Capivasertib: 400 mg (2 oral tablets) BD given on an intermittent weekly dosing schedule. Dosed on Days 1 to 4 in each week of a 28-day treatment cycle.

Drug: FulvestrantDrug: Capivasertib

Placebo + fulvestrant

PLACEBO COMPARATOR

Fulvestrant: 2 intramuscular injections of 500 mg given on Day 1 of Weeks 1 and 3 of cycle 1, and then on Day 1, Week 1 of each cycle thereafter. Placebo: 400 mg (2 oral tablets) BD given on an intermittent weekly dosing schedule. Dosed on Days 1 to 4 in each week of a 28-day treatment cycle.

Drug: FulvestrantDrug: Placebo

Interventions

Patients will be administered 500 mg (2 injections) on Day 1 of Weeks 1 and 3 of Cycle 1, and then on Day 1, Week 1 of each cycle thereafter

Capivasertib + fulvestrantPlacebo + fulvestrant

400 mg BD (2 tablets of 200 mg taken twice a day = total daily dose 800 mg) given on an intermittent weekly dosing schedule. Patients will be dosed on Days 1 to 4 in each week of a 28-day treatment cycle

Capivasertib + fulvestrant

Placebo to match 400 mg BD (2 tablets of placebo to match 200 mg taken twice daily = placebo to match total daily dose of 800 mg) given on an intermittent weekly dosing schedule. Patients will be dosed on Days 1 to 4 in each week of a 28-day treatment cycle

Placebo + fulvestrant

Eligibility Criteria

Age18 Years - 130 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult females, pre- and/or post-menopausal, and adult males. Pre-menopausal (and peri-menopausal) women can be enrolled if amenable to treatment with an LHRH agonist. Patients are to have commenced concomitant treatment with LHRH agonist prior to or on Cycle 1, Day 1 and must be willing to continue on it for the duration of the study
  • Histologically confirmed HR+/HER2- breast cancer determined from the most recent tumour sample (primary or metastatic), as per the American Society of Clinical Oncology and College of American Pathologists guideline recommendations. To fulfil the requirement of HR+ disease, a breast cancer must express ER with or without co-expression of progesterone receptor.
  • Metastatic or locally advanced disease with radiological or objective evidence of recurrence or progression (the cancer should have shown progression during or after most recent therapy); locally advanced disease must not be amenable to resection with curative intent (patients who are considered suitable for surgical or ablative techniques following potential down-staging with study treatment are not eligible)
  • ECOG/WHO PS: 0-1
  • Patients are to have received treatment with an AI (aromatase inhibitor) containing regimen (single agent or in combination) and have:
  • Radiological evidence of breast cancer recurrence or progression while on, or within 12 months of the end of (neo)adjuvant treatment with an AI, OR
  • Radiological evidence of progression while on prior AI administered as a treatment line for locally advanced or metastatic breast cancer (this does not need to be the most recent therapy)
  • Patients must have measurable disease according to RECIST 1.1 and/or at least 1 lytic or mixed (lytic + sclerotic) bone lesion that can be assessed by CT or MRI; patients with sclerotic/osteoblastic bone lesions only in the absence of measurable disease are not eligible
  • FFPE tumour sample from primary/recurrent cancer for central testing

You may not qualify if:

  • Symptomatic visceral disease or any disease burden that makes the patient ineligible for endocrine therapy per the investigator's best judgement
  • More than 2 lines of endocrine therapy for inoperable locally advanced or metastatic disease
  • More than 1 line of chemotherapy for inoperable locally advanced or metastatic disease. Adjuvant and neoadjuvant chemotherapy are not classed as lines of chemotherapy for advanced breast cancer
  • Prior treatment with any of the following:
  • AKT, PI3K and mTOR inhibitors
  • Fulvestrant, and other SERDs
  • Any other chemotherapy, immunotherapy, immunosuppressant medication (other than corticosteroids) or anticancer agents within 3 weeks prior to study treatment initiation.
  • Potent inhibitors or inducers of CYP3A4 within 2 weeks prior to the first dose of study treatment (3 weeks for St John's wort) or drugs that are sensitive to CYP3A4 inhibition within 1 week prior to study treatment initiation.
  • Radiotherapy with a wide field of radiation up to 4 weeks before study treatment initiation (capivasertib/placebo) and/or radiotherapy with a limited field of radiation for palliation up to 2 weeks before study treatment initiation (capivasertib/placebo)
  • With the exception of alopecia, any unresolved toxicities from prior therapy greater than CTCAE grade 1 at the time of starting study treatment
  • Spinal cord compression or brain metastases unless asymptomatic, treated and stable and not requiring steroids up to 4 weeks before study treatment initiation
  • Any of the following cardiac criteria:
  • Mean resting QT interval corrected by Fridericia's formula (QTcF) \>470 msec obtained from 3 consecutive ECGs
  • Any clinically important abnormalities in rhythm, conduction or morphology of resting ECG (eg, complete left bundle branch block, third degree heart block)
  • Any factors that increase the risk of corrected QT interval (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
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (215)

Research Site

Gilbert, Arizona, 85234, United States

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Orange, California, 92868, United States

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San Francisco, California, 94143, United States

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Whittier, California, 90603, United States

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Fort Myers, Florida, 33905, United States

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Jacksonville, Florida, 32224, United States

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Westwood, Kansas, 66205, United States

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Baltimore, Maryland, 21201, United States

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Boston, Massachusetts, 02111-1520, United States

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Rochester, Minnesota, 55905, United States

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Kansas City, Missouri, 64132, United States

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St Louis, Missouri, 63156, United States

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Paramus, New Jersey, 07652, United States

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Farmington, New Mexico, 87401, United States

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Lake Success, New York, 11042, United States

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New York, New York, 10011, United States

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Greensboro, North Carolina, 27403, United States

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Chattanooga, Tennessee, 37404, United States

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Nashville, Tennessee, 37211, United States

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Dallas, Texas, 75246, United States

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Midlothian, Virginia, 23114, United States

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Puyallup, Washington, 98373, United States

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Berazategui, B1884BBF, Argentina

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Buenos Aires, C1125ABD, Argentina

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La Rioja, 5300, Argentina

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Rosario, S2000KZE, Argentina

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Viedma, R8500ACE, Argentina

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Adelaide, 5000, Australia

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Ballarat, 3350, Australia

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Birtinya, 4575, Australia

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Box Hill, 3128, Australia

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Concord, 2139, Australia

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Kurralta Park, 5037, Australia

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North Sydney, 2060, Australia

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Orange, 2800, Australia

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Ringwood East, 3135, Australia

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South Brisbane, 4101, Australia

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Waratah, 2298, Australia

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Wendouree, 3355, Australia

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Brussels, 1090, Belgium

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Brussels, 1200, Belgium

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Charleroi, 6000, Belgium

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Edegem, 2650, Belgium

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Namur, 5000, Belgium

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Wilrijk, 2610, Belgium

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Winnipeg, Manitoba, R3E 0V9, Canada

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Kingston, Ontario, K7L 2V7, Canada

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North York, Ontario, M2K 1E1, Canada

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Toronto, Ontario, M3M 0B2, Canada

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Toronto, Ontario, M4N 3M5, Canada

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Baoding, 071000, China

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Beijing, 100044, China

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Beijing, 100191, China

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Changchun, 130021, China

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Chongqing, 400030, China

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Chongqing, 400042, China

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Dalian, 116011, China

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Foshan, 528000, China

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Gongshu District, 310022, China

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Guangzhou, 510080, China

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Guangzhou, 510095, China

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Hangzhou, 310003, China

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Hangzhou, 310020, China

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Harbin, 150081, China

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Hefei, 230001, China

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Hefei, 230022, China

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Jinan, 250001, China

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Linyi, 276001, China

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Nanchang, 330009, China

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Nantong, 226001, China

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Neijiang, 641000, China

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Shanghai, 200032, China

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Shanghai, 200127, China

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Shantou, 515031, China

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Shenyang, 110001, China

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Shenyang, 110042, China

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Wuhan, 430022, China

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Wuhan, 430030, China

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Wuhan, 430079, China

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Zhengzhou, 450008, China

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Besançon, 25000, France

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Brest, 29609, France

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Metz, 57085, France

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Pierre-Bénite, 69310, France

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Plerin SUR MER, 22190, France

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Pringy, 74374, France

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Rouen, 76038, France

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Strasbourg, 67065, France

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Toulouse, 31059, France

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Dresden, 01307, Germany

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Erlangen, 91054, Germany

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Essen, 45130, Germany

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Frankfurt, 60389, Germany

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Gelsenkirchen, 45879, Germany

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Hamburg, 20246, Germany

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Hamburg, 20249, Germany

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Hamburg, 20357, Germany

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Hanover, 30625, Germany

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Heidelberg, 69120, Germany

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Kiel, 24105, Germany

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Mannheim, 68167, Germany

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Minden, 32429, Germany

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München, 80637, Germany

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München, 81377, Germany

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Münster, 48149, Germany

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Paderborn, 33161, Germany

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Potsdam, 14467, Germany

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Budapest, 1122, Hungary

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Budapest, 1134, Hungary

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Debrecen, 4032, Hungary

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Kecskemét, 6000, Hungary

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Szekszárd, 7100, Hungary

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Szolnok, 5000, Hungary

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Afula, 1834111, Israel

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Beersheba, 84101, Israel

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Haifa, 31096, Israel

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Jerusalem, 91031, Israel

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Jerusalem, 91120, Israel

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Kfar Saba, 4428164, Israel

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Petah Tikva, 49100, Israel

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Ramat Gan, 52621, Israel

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Bergamo, 24127, Italy

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Candiolo, 10060, Italy

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Catanzaro, 88100, Italy

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Livorno, 57124, Italy

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Macerata, 62100, Italy

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Meldola, 47014, Italy

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Milan, 20141, Italy

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Modena, 41124, Italy

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Naples, 80131, Italy

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Prato, 59100, Italy

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Roma, 00128, Italy

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Chiba, 260-8717, Japan

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Fukuoka, 811-1395, Japan

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Fukushima, 960-1295, Japan

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Hidaka-shi, 350-1298, Japan

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Hiroshima, 730-8518, Japan

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Kagoshima, 892-0833, Japan

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Kitaadachi-gun, 362-0806, Japan

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Kōtoku, 135-8550, Japan

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Kumamoto, 860-8556, Japan

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Kyoto, 606-8507, Japan

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Matsuyama, 791-0280, Japan

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Nagoya, 464-8681, Japan

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Nagoya, 467-8602, Japan

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Osaka, 540-0006, Japan

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Osaka, 541-8567, Japan

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Ota-shi, 373-8550, Japan

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Sapporo, 003-0804, Japan

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Sapporo, 060-8638, Japan

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Shinagawa-ku, 142-8666, Japan

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Tsu, 514-8507, Japan

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Yokohama, 241-8515, Japan

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Arequipa, AREQUIPA01, Peru

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Lima, LIMA 41, Peru

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Bydgoszcz, 85-796, Poland

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Krakow, 31-501, Poland

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Olsztyn, 10-228, Poland

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Warsaw, 02-781, Poland

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Moscow, 111123, Russia

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Moscow, 115478, Russia

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Saint Petersburg, 197758, Russia

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Saint Petersburg, 198255, Russia

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Samara, 443031, Russia

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Sochi, 354000, Russia

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Busan, 49241, South Korea

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Daegu, 41931, South Korea

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Goyang-si, 10408, South Korea

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Incheon, 22332, South Korea

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Seongnam-si, 13620, South Korea

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Seoul, 03722, South Korea

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Seoul, 05505, South Korea

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Seoul, 135-710, South Korea

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Seoul, 8308, South Korea

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Suwon, 16247, South Korea

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Suwon, 16499, South Korea

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A Coruña, 15009, Spain

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Barcelona, 08035, Spain

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Barcelona, 8003, Spain

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Córdoba, 14004, Spain

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Hosp de Llobregat(Barcelona), 08907, Spain

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Jaén, 23007, Spain

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La Laguna (Tenerife), 38320, Spain

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Lleida, 25198, Spain

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Madrid, 28007, Spain

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Madrid, 28033, Spain

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Madrid, 28034, Spain

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Madrid, 28040, Spain

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Madrid, 28041, Spain

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Madrid, 28046, Spain

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Majadahonda, 28222, Spain

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Málaga, 29010, Spain

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Pamplona, 31008, Spain

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Reus, 43204, Spain

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Santiago de Compostela, 15706, Spain

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Seville, 41013, Spain

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Valencia, 46009, Spain

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Valencia, 46010, Spain

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Kaohsiung City, 82445, Taiwan

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Taichung, 40447, Taiwan

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Tainan, 70403, Taiwan

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Tainan, 710, Taiwan

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Taipei, 10002, Taiwan

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Taipei, 11217, Taiwan

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Taipei, 11259, Taiwan

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Taoyuan, 333, Taiwan

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Aberdeen, AB25 2ZN, United Kingdom

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Bournemouth, BH7 7DW, United Kingdom

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Bristol, BS2 8ED, United Kingdom

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Cardiff, CF14 2TL, United Kingdom

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Cheltenham, GL53 7AN, United Kingdom

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London, NW3 2QG, United Kingdom

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London, SW3 6JJ, United Kingdom

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Manchester, M20 4GJ, United Kingdom

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Sutton, SM25PT, United Kingdom

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Related Publications (4)

  • Turner NC, Oliveira M, Howell SJ, Dalenc F, Cortes J, Gomez Moreno HL, Hu X, Jhaveri K, Krivorotko P, Loibl S, Morales Murillo S, Okera M, Park YH, Sohn J, Toi M, Tokunaga E, Yousef S, Zhukova L, de Bruin EC, Grinsted L, Schiavon G, Foxley A, Rugo HS; CAPItello-291 Study Group. Capivasertib in Hormone Receptor-Positive Advanced Breast Cancer. N Engl J Med. 2023 Jun 1;388(22):2058-2070. doi: 10.1056/NEJMoa2214131.

    PMID: 37256976BACKGROUND
  • Turner NC, Oliveira M, Howell SJ, Dalenc F, Cortes J, Gomez HL, Hu X, Jhaveri K, Krivorotko P, Loibl S, Murillo SM, Park YH, Sohn JH, Toi M, Tokunaga E, Yousef S, Zhukova L, de Bruin E, Grinsted L, Schiavon G, Foxley A, Rugo HS. A plain language summary of the CAPItello-291 study: Capivasertib in hormone receptor-positive advanced breast cancer. Future Oncol. 2024;20(37):2901-2913. doi: 10.1080/14796694.2024.2390791. Epub 2024 Sep 16.

  • Oliveira M, Rugo HS, Howell SJ, Dalenc F, Cortes J, Gomez HL, Hu X, Toi M, Jhaveri K, Krivorotko P, Loibl S, Morales Murillo S, Okera M, Nowecki Z, Park YH, Sohn JH, Tokunaga E, Yousef S, Zhukova L, Fulford M, Andrews H, Wadsworth I, D'Cruz C, Turner NC; CAPItello-291 study group. Capivasertib and fulvestrant for patients with hormone receptor-positive, HER2-negative advanced breast cancer (CAPItello-291): patient-reported outcomes from a phase 3, randomised, double-blind, placebo-controlled trial. Lancet Oncol. 2024 Sep;25(9):1231-1244. doi: 10.1016/S1470-2045(24)00373-5.

  • Dilawari A, Buturla J, Osgood C, Gao X, Chen W, Ricks TK, Schaefer T, Avasarala S, Reyes Turcu F, Pathak A, Kalavar S, Bhatnagar V, Collazo J, Rahman NA, Mixter B, Tang S, Pazdur R, Kluetz P, Amiri-Kordestani L. US Food and Drug Administration Approval Summary: Capivasertib With Fulvestrant for Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative Locally Advanced or Metastatic Breast Cancer With PIK3CA/AKT1/PTEN Alterations. J Clin Oncol. 2024 Dec;42(34):4103-4113. doi: 10.1200/JCO.24.00427. Epub 2024 Aug 19.

Related Links

MeSH Terms

Interventions

Fulvestrantcapivasertib

Intervention Hierarchy (Ancestors)

EstradiolEstrenesEstranesSteroidsFused-Ring CompoundsPolycyclic CompoundsEstradiol CongenersGonadal Steroid HormonesGonadal HormonesHormonesHormones, Hormone Substitutes, and Hormone Antagonists

Limitations and Caveats

There were 24 participants who were included in both the global cohort and China cohort which gives a total of 818 participants instead of a total of 842 participants.

Results Point of Contact

Title
Global Clinical Lead
Organization
AstraZeneca

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Double-blind Randomised Study
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 20, 2020

First Posted

March 12, 2020

Study Start

April 16, 2020

Primary Completion

May 9, 2023

Study Completion (Estimated)

June 22, 2026

Last Updated

April 30, 2026

Results First Posted

October 27, 2025

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

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.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA Pharma Data Sharing Principles. For details of our timelines, please refer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
Access Criteria
When a request has been approved AstraZeneca will provide access to the de-identified individual patient-level data in an approved sponsored tool. Signed Data Sharing Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information. Additionally, all users will need to accept the terms and conditions of the SAS MSE to gain access. For additional details, please review the Disclosure Statements at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
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