A Study to Test Inavolisib Treatments in Participants With Early-Stage, PIK3CA-Mutated Breast Cancer
NCT ID: NCT07054190
Last Updated: 2026-02-02
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
PHASE2
60 participants
INTERVENTIONAL
2025-09-09
2027-09-28
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Arm A
Participants will receive inavolisib and letrozole orally (PO) once a day (QD) from Day 1 to 28 and ribociclib PO QD from Day 1 to 21 in cycles 1-5 (each cycle=28 days). In cycle 6, inavolisib, ribociclib and letrozole will be administered PO QD on days 1-21 (each cycle=21 days).
Letrozole
Letrozole will be administered as per the schedule specified in the arms
Inavolisib
Inavolisib will be administered as per the schedule specified in the arms
Ribociclib
Ribociclib will be administered as per the schedule specified in the arms
Arm B
Participants will receive a starting regimen of inavolisib and letrozole PO QD from Day 1 to 28 in cycle 1 (each cycle=28 days). Starting on Day 1 of Cycle 2, all participants will receive the triplet regimen inavolisib + ribociclib + letrozole as follows: inavolisib and letrozole PO QD from Day 1 to 28 and ribociclib PO QD from Day 1 to 21 in cycles 2-5 (each cycle=28 days). In cycle 6, inavolisib, ribociclib and letrozole will be administered PO QD on days 1-21 (each cycle=21 days).
Letrozole
Letrozole will be administered as per the schedule specified in the arms
Inavolisib
Inavolisib will be administered as per the schedule specified in the arms
Ribociclib
Ribociclib will be administered as per the schedule specified in the arms
Arm C
Participants will receive a starting regimen of ribociclib PO QD from Day 1 to 21 and letrozole PO QD from Day 1 to 28 in cycle 1 (each cycle=28 days). Starting on Day 1 of Cycle 2, all participants will receive the triplet regimen inavolisib + ribociclib + letrozole as follows: inavolisib and letrozole PO QD from Day 1 to 28 and ribociclib PO QD from Day 1 to 21 in cycles 2-5 (each cycle=28 days). In cycle 6, inavolisib, ribociclib and letrozole will be administered PO QD on days 1-21 (each cycle=21 days).
Letrozole
Letrozole will be administered as per the schedule specified in the arms
Inavolisib
Inavolisib will be administered as per the schedule specified in the arms
Ribociclib
Ribociclib will be administered as per the schedule specified in the arms
Interventions
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Letrozole
Letrozole will be administered as per the schedule specified in the arms
Inavolisib
Inavolisib will be administered as per the schedule specified in the arms
Ribociclib
Ribociclib will be administered as per the schedule specified in the arms
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Candidate for neoadjuvant treatment and considered appropriate for endocrine combination therapy
* Willingness to undergo breast surgery (mastectomy or breast-conserving surgery) after neoadjuvant treatment (unless inoperable)
* Documented ER-positive tumor in accordance with current American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines
* Documented HER2-negative tumor in accordance with current ASCO/CAP guidelines
* Documented Ki-67 score \>=5% as per local assessment
* Confirmed PIK3CA mutation
Exclusion Criteria
* Inflammatory BC (cT4d)
* Bilateral invasive BC
* History of ductal carcinoma in situ or lobular carcinoma in situ if they have received any systemic therapy for treatment or radiation therapy to the ipsilateral breast
* Previous systemic or local treatment for the primary BC currently under investigation (including excisional biopsy or any other surgery of the primary tumor and/or axillary lymph nodes, including sentinel lymph node biopsy, radiotherapy, cytotoxic, and endocrine treatments)
* Type 2 diabetes requiring ongoing systemic treatment at the time of study entry; or any history of Type 1 diabetes
18 Years
FEMALE
No
Sponsors
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Hoffmann-La Roche
INDUSTRY
Responsible Party
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Principal Investigators
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Clinical Trials
Role: STUDY_DIRECTOR
Hoffmann-La Roche
Locations
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Centro Oncologico Korben
Ciudad Autonoma Buenos Aires, , Argentina
Hospital Araujo Jorge
Goiânia, Goiás, Brazil
Hospital do Cancer de Pernambuco - HCP
Recife, Pernambuco, Brazil
Irmandade Da Santa Casa de Misericordia de Porto Alegre
Porto Alegre, Rio Grande do Sul, Brazil
Clinica de Pesquisa e Centro de Estudos em Oncologia Ginecologica e Mamaria Ltda
São Paulo, São Paulo, Brazil
Centre Hospitalier de l'Universite de Montreal (CHUM)
Montreal, Quebec, Canada
Jewish General Hospital
Montreal, Quebec, Canada
McGill University Health Center
Montreal, Quebec, Canada
Kliniken Essen-Mitte
Essen, , Germany
Universitätsklinikum Heidelberg
Heidelberg, , Germany
Seoul National University Hospital
Seoul, , South Korea
Severance Hospital, Yonsei University Health System
Seoul, , South Korea
Asan Medical Center.
Seoul, , South Korea
Samsung Medical Center
Seoul, , South Korea
Vall d'Hebron Institute of Oncology (VHIO), Barcelona
Barcelona, , Spain
Hospital Clinic Barcelona
Barcelona, , Spain
Hospital General Universitario Gregorio Marañon
Madrid, , Spain
Hospital Universitario 12 de Octubre
Madrid, , Spain
Hospital Clinico Universitario de Salamanca
Salamanca, , Spain
Hospital Universitario Virgen Macarena
Seville, , Spain
Hospital Clínico Universitario de Valencia
Valencia, , Spain
Countries
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Central Contacts
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Reference Study ID Number: BO45853 https://forpatients.roche.com/
Role: CONTACT
Other Identifiers
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2024-518811-20-00
Identifier Type: CTIS
Identifier Source: secondary_id
BO45853
Identifier Type: -
Identifier Source: org_study_id
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