A Study of Ipatasertib in Combination With Paclitaxel as a Treatment for Participants With PIK3CA/AKT1/PTEN-Altered, Locally Advanced or Metastatic, Triple-Negative Breast Cancer or Hormone Receptor-Positive, HER2-Negative Breast Cancer (IPATunity130)
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ClinicalTrials.gov Identifier: NCT03337724 |
Recruitment Status :
Active, not recruiting
First Posted : November 9, 2017
Last Update Posted : January 13, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Breast Cancer | Drug: Ipatasertib Drug: Paclitaxel Drug: Placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 580 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Double-Blind, Placebo-Controlled, Randomized Phase III Study of Ipatasertib in Combination With Paclitaxel as a Treatment for Patients With PIK3CA/AKT1/PTEN-Altered, Locally Advanced or Metastatic, Triple-Negative Breast Cancer or Hormone Receptor-Positive, HER2-Negative Breast Cancer |
Actual Study Start Date : | January 6, 2018 |
Estimated Primary Completion Date : | January 31, 2023 |
Estimated Study Completion Date : | January 31, 2023 |

Arm | Intervention/treatment |
---|---|
Experimental: Ipatasertib + Paclitaxel |
Drug: Ipatasertib
Ipatasertib, 400 milligrams (mg), administered orally once a day (QD) on Days 1-21 of each 28-day cycle until disease progression, intolerable toxicity, elective withdrawal from the study, or study completion or termination. Drug: Paclitaxel Paclitaxel, 80 mg/square meter (m^2), administered intravenously (IV) on Days 1, 8, and 15 of each 28-day cycle until disease progression, intolerable toxicity, elective withdrawal from the study, or study completion or termination. |
Experimental: Placebo + Paclitaxel |
Drug: Paclitaxel
Paclitaxel, 80 mg/square meter (m^2), administered intravenously (IV) on Days 1, 8, and 15 of each 28-day cycle until disease progression, intolerable toxicity, elective withdrawal from the study, or study completion or termination. Drug: Placebo Matching placebo, administered orally QD on Days 1-21 of each 28-day cycle until disease progression, intolerable toxicity, elective withdrawal from the study, or study completion or termination. |
- Progression-Free Survival (PFS) [ Time Frame: From randomization until the first occurrence of disease progression or death from any cause, whichever occurs earlier, up to approximately 53 months ]Progression-Free Survival (PFS) as determined by the Investigator using Response Evaluation Criteria In Solid Tumors (RECIST) Version 1.1 (v1.1)
- Objective Response Rate (ORR) [ Time Frame: From randomization until the first occurrence of disease progression or death from any cause, whichever occurs earlier, up to approximately 53 months ]Proportion of participants with an objective response (ORR), defined as partial response or complete response on 2 consecutive occasions ≥4 weeks apart) as determined by the Investigator using RECIST v.1.1
- Duration of Response (DOR) [ Time Frame: Time from the first occurrence of a documented objective response to the time of the first documented disease progression or death from any cause, whichever occurs earlier, up to approximately 53 months ]Time from the first occurrence of a documented objective response to the time of the first documented disease progression or death from any cause.
- Clinical Benefit Rate (CBR) [ Time Frame: From randomization until the first occurrence of disease progression or death from any cause, whichever occurs earlier, up to approximately 53 months ]Proportion of participants with a clinical benefit (CB), defined as an objective response (CR or PR), or stable disease for at least 24 weeks, as determined by the Investigator through the use of RECIST v1.1.
- Overall Survival (OS) [ Time Frame: From randomization up to death from any cause, up to approximately 53 months ]Time from randomization to death from any cause.
- Global Health Status (GHS)/Health-Related Quality of Life (HRQoL) Score [ Time Frame: From Day 1 of Cycle 1 up to approximately 53 months ]GHS/HRQoL scores, assessed using selected questions from European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30).
- Time to Deterioration in Pain [ Time Frame: From Day 1 of Cycle 1 up to approximately 53 months ]Time to deterioration in pain is defined as the first minimally important increase of >10 points from the baseline pain scale score of selected questions of the EORTC QLQ-C30 and will only be assessed in the cohort with HR+/HER2- breast cancer participants.
- Incidence and Severity of Adverse Events (AEs) [ Time Frame: From randomization up to approximately 53 months ]Percentage of participants with an adverse event (AE), graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), Version 4.0, including analysis of pre-specified AEs.
- Changes in Vital Signs [ Time Frame: From randomization up to approximately 53 months ]Change from baseline in selected vital signs.
- Changes in Targeted Laboratory Results [ Time Frame: From randomization up to approximately 53 months ]Change from baseline in selected laboratory test results.
- Plasma Concentration of Ipatasertib and Its Metabolite (G-037720) [ Time Frame: Day 1 and Day 15 of Cycle 1, and on Day 15 of Cycle 3 ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Women or men aged =>18 years with histologically documented triple-negative breast cancer (TNBC) or HR+/HER2- adenocarcinoma of the breast that is locally advanced or metastatic and is not amenable to resection with curative intent
- Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
- Adequate hematologic and organ function within 14 days prior to treatment initiation
- Histologically documented TNBC or HR+/HER2- adenocarcinoma of the breast that is locally advanced or metastatic and is not amenable to resection with curative intent
- Measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
- Eligible for taxane monotherapy, as per local investigator assessment (e.g., absence of rapid clinical progression, life-threatening visceral metastases, or the need for rapid symptom and/or disease control which may require combination chemotherapy)
- HR+/HER2- breast cancer that is not considered appropriate for endocrine-based therapy and meets one of the following: patient has recurrent disease <=5 years of being on adjuvant endocrine therapy or if patient with de novo metastatic disease have progressed within 6 months of being on first line endocrine therapy.
- Consent to submit a formalin-fixed, paraffin-embedded tumor (FFPE) tissue block or freshly cut unstained, serial tumor slides from the most recently collected tumor tissue for central molecular analysis
- Confirmation of biomarker eligibility using an appropriately validated molecular assay at a diagnostic laboratory, Clinically Laboratory Improvement Amendments (CLIA) or equivalently accredited i.e., valid results from either central testing or local testing of tumor tissue or blood demonstrating PIK3CA/AKT1/PTEN-altered status
- For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraception and agreement to refrain from donating eggs
- For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods and agreement to refrain from donating sperm
Exclusion Criteria:
- Treatment with approved or investigational cancer therapy within 14 days prior to treatment initiation
- Any previous chemotherapy for inoperable locally advanced or metastatic TNBC or HR+/HER2- adenocarcinoma of the breast (patients receiving neo/adjuvant chemotherapy eligible provided they have at least a 12 month disease-free interval)
- History of or known presence of brain or spinal cord metastases
- Malignancies other than breast cancer within 5 years prior to treatment initiation (except for appropriately treated carcinoma in situ of the cervix, non-melanoma skin carcinoma, or Stage I uterine cancer)
- Prior treatment with an Akt inhibitor (prior PI3K or mTOR inhibitors are allowed)
- History of malabsorption syndrome or other condition that would interfere with enteral absorption or results in the inability or unwillingness to swallow pills
- Active infection requiring systemic anti-microbial treatment (including antibiotics, anti-fungals, and anti-viral agents)
- Known human immunodeficiency virus (HIV) infection
- Known clinically significant history of liver disease consistent with Child-Pugh Class B or C, including active viral or other hepatitis, current drug or alcohol abuse, or cirrhosis
- Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to initiation of treatment (or anticipated need during study)
- Pregnant or breastfeeding, or intending to become pregnant during the study
- Clinically significant cardiac dysfunction (including NYHA Class II/III/IV heart failure, left ventricular ejection fraction [LVEF] <50%, active ventricular arrhythmia requiring medication, history of myocardial infarction within 6 months of treatment initiation, clinically significant electrocardiogram [ECG] abnormalities).
- Need for chronic corticosteroid therapy of >=10 mg of prednisone per day or an equivalent dose of other anti-inflammatory corticosteroids or immunosuppressants for a chronic disease
- Unresolved, clinically significant toxicity from prior therapy, except for alopecia and Grade 1 peripheral neuropathy
- Uncontrolled clinical symptoms including pleural effusion, pericardial effusion, or ascites, tumor-related pain, hypercalcemia (or symptomatic hypercalcemia requiring continued use of bisphosphonate therapy)
- History of Type I or Type II diabetes mellitus requiring insulin
- Grade >=2 uncontrolled or untreated hypercholesterolemia or hypertriglyceridemia
- History of or active inflammatory bowel disease or active bowel inflammation
- Clinically significant lung disease (including pneumonitis, interstitial lung disease, idiopathic pulmonary fibrosis, cystic fibrosis, active infection/ history of opportunistic infections)
- Treatment with strong CYP3A inhibitors or strong CYP3A inducers within 2 weeks or 5 drug-elimination half-lives, whichever is longer, prior to initiation of treatment
- Grade >=2 peripheral neuropathy

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03337724

Study Director: | Clinical Trials | Hoffmann-La Roche |
Responsible Party: | Hoffmann-La Roche |
ClinicalTrials.gov Identifier: | NCT03337724 |
Other Study ID Numbers: |
CO40016 2017-001548-36 ( EudraCT Number ) |
First Posted: | November 9, 2017 Key Record Dates |
Last Update Posted: | January 13, 2023 |
Last Verified: | January 2023 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Breast Neoplasms Triple Negative Breast Neoplasms Neoplasms by Site Neoplasms Breast Diseases Skin Diseases Paclitaxel |
Antineoplastic Agents, Phytogenic Antineoplastic Agents Tubulin Modulators Antimitotic Agents Mitosis Modulators Molecular Mechanisms of Pharmacological Action |