Breast Cancer Stage IVPhase 2SAFIR 03NCT05625087
Detection of Tumor DNA in the Blood of Patients Receiving Standard Therapy for Hormone Receptor-positive (HR+) Non-HER2 Expressing (HER2-) Metastatic Breast Cancer as a Tool to Select Those Who May Benefit From the Next Course of Fulvestrant in Combination With Alpelisib or Ribociclib
A Phase 2 study testing Alpelisib and Ribociclib in people with Breast Cancer Stage IV, run by UNICANCER at 44 sites in France.
Trial summary
After an initial screening phase (SAFIR 03 - SCREENING) to identify patients with blood circulating mutated-PIK3CA tumours persistent, patients will be enrolled in the treatment phase of SAFIR 03 (SAFIR 03 - ARRIBA) that was designed as a randomised, open-label, multicentre, phase II study, for comparison of alpelisib… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Breast Cancer Stage IV
- What is being tested?
- Alpelisib and Ribociclib
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 4 participants
- Where
- 44 sitesFrance
- Study dates
- 19 Oct 2023to 20 Jan 2026
- Phase
- Phase 2
- Are there results?
- None posted in the registry
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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patient must have signed a written informed consent prior to any study-specific screening procedures (the consent form specifically for the screening phase must be signed).
- Patient is ≥18 years of age.
- Patient has an histologically or cytologically confirmed metastatic breast cancer.
- Patient has a HER2- breast cancer (without HER2 overexpression according to the ASCO-CAP 2018 guidelines).
- Patient has hormone receptor-positive (HR+) breast cancer, defined as having oestrogen receptor (ER) and/or progesterone receptor (PR) expression in ≥10% of tumour cells.
- Patient had a metastatic relapse during or within 1 year after termination of the adjuvant endocrine therapy.
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- Patient has not yet been treated in the metastatic breast cancer setting.
- Patient is eligible for a first-line treatment with a marketed CDK4/6 inhibitor (palbociclib, ribociclib, or abemaciclib) in combination with fulvestrant, according to its marketing authorisation.
- Eastern Cooperative Oncology Group (ECOG) performance status is ≤1.
- Patient has an adequate bone marrow and organ function.
- Measurable or evaluable disease according to response evaluation criteria in solid tumors version 1.1 (RECIST v1.1).
- Patients must be willing and able to comply with the protocol for the duration of the study including scheduled visits, treatment plan, laboratory tests and other study procedures.
- Patient must be affiliated to the national social security (or equivalent).
- Patient must have signed a written informed consent prior to any procedures for the randomised study phase (the consent form specifically for the randomised study phase must be signed).
- Patient has a circulating PIK3CA level of exon 4, 9 or 20 mutant* of PIK3CA ctDNA determined by circulating tumour DNA (ctDNA) assay after 4 weeks of treatment with any CDK4/6 inhibitor combined with fulvestrant.
- Patient must have discontinued CDK4/6 inhibitor (palbociclib, ribociclib, or abemaciclib) at least 7 days before randomisation.
- ECOG performance status is ≤1.
- Patient's life expectancy is deemed ≥3 months.
- Patient has an adequate bone marrow and organ function as defined by the following laboratory values:
- Absolute neutrophil count (ANC) ≥1500/mm³,
- Platelet count ≥100,000/mm³,
- Haemoglobin ≥9.0 g/dL,
- International normalised ratio (INR) ≤1.5 (unless the participant is receiving anticoagulants and the INR is within the therapeutic range of intended use for that anticoagulant within 7 days prior to the first dose of study drug),
- Serum creatinine ≤1.5 × upper limit of normal (ULN) or creatinine clearance ≥50 mL/min,
- Total bilirubin ≤2× ULN (<3 ULN with documented Gilbert's disease) or direct bilirubin ≤ 1.5 × ULN,
- aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤2.5 × ULN, or <5.0 x ULN if patient has liver metastasis,
- Fasting Serum amylase ≤ 2 × ULN,
- Fasting Serum lipase ≤ ULN,
- Fasting plasma glucose (FPG) ≤140 mg/dL (or ≤7.7 mmol/L) and glycosylated haemoglobin (HbA1c) ≤6.4%.
- Participant must have the following laboratory values within normal limits or corrected to within normal limits with supplements before randomisation
- Potassium
- Magnesium
- Total Calcium (corrected for serum albumin)
- Patient with parameters of standard 12-lead ECG (defined as the mean of triplicate ECGs performed) as follows, before randomisation:
- QTcF interval <450ms (using Fridericia's correction),
- Resting heart rate between 50-90 bpm.
- Women of childbearing potential must have a negative serum pregnancy test result within 14 days of enrolment in the randomised trial phase.
- Men or Women of childbearing potential must agree to the use of effective contraceptive for the study duration and for at least 2 year after the last dose of study treatment for women, and at least 21 days for men.
- Patients must be willing and able to comply with the protocol for the duration of the study including scheduled visits, treatment plan, laboratory tests and other study procedures.
- Also numbered exon 5, 10 and 21 according to recent classification: Ensembl Transcript ID: ENST00000263967.4, RefSeq: NM_006218.4.
Who cannot join
- Prior exposure to PIK3CA-AKT or CDK4/6 inhibitors.
- Patient that has initiated the CDK4/6 inhibitor treatment.
- Patient with spinal cord compression and/or symptomatic or progressive brain metastases (unless asymptomatic or treated and stable off steroids for ≥30 days before initiating the study treatment).
- Participant with an established diagnosis of diabetes mellitus type I or not controlled type II (based on FG and HbA1c).
- Patient unable to swallow tablets.
- Patient with known hypersensitivity to any of the study treatment excipients, in particular patients with allergies to soya or peanuts.
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- Patients with a history of malabsorption syndrome or other condition that may interfere with enteral absorption: including but not limited to active intestine inflammation (e.g., Crohn's disease or ulcerative colitis) requiring immunosuppressive therapy.
- Patient with any condition/disease for which the investigator considers that participating in the study is inappropriate or that may jeopardize treatment and protocol compliance.
- Patient deprived of liberty or under the authority of a tutor.
- RANDOMISED PHASE ( SAFIR 03 -ARRIBA)
- Patient is eligible to chemotherapy because of visceral crisis.
- Pregnant or lactating women.
- Patient has received more than 2 cycles of the ongoing CDK4/6 inhibitor treatment combined with fulvestrant before randomisation.
- Patient has interrupted the ongoing CDK4/6 inhibitor treatment for more than 14 days before randomisation.
- Patient has evidence of clinical or radiological disease progression before randomisation.
- Patient has unresolved adverse events (grade ≥1), except alopecia and grade ≥2 unresolved adverse events related to fulvestrant or the LH-RH analogue which are acceptable to randomisation.
- Patient is considered at high medical risk because of severe or uncontrolled systemic disease, including but not limited to diabetes mellitus, clinically significant pulmonary disease, clinically significant neurological disorder, chronic pancreatitis, chronic active hepatitis, active untreated/uncontrolled fungal, bacterial, or viral infections, as well as known active viral infections with hepatitis B, hepatitis C, or human immunodeficiency virus (HIV).
- Participant has currently documented pneumonitis/interstitial lung disease (the chest CT scan performed before start of study treatment for the purpose of tumour assessment should be reviewed to confirm that there are no relevant pulmonary complications present).
- Participant has a history of severe cutaneous reaction, such as Stevens-Johnson Syndrome (SJS), Erythema Multiforme (EM), Toxic Epidermal Necrolysis (TEN), or Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
- Participant with unresolved osteonecrosis of the jaw.
- Clinically significant, uncontrolled heart disease and/or cardiac repolarization abnormalities including any of the following:
- Uncontrolled hypertension,
- Symptomatic congestive heart failure: New York Heart Association (NYHA) class ≥2,
- Unstable angina pectoris,
- Stroke or myocardial infarction within the 6 months before randomisation,
- Serious cardiac arrhythmia requiring treatment, except treated atrial fibrillation and paroxysmal supraventricular tachycardia, or conduction abnormality for which the patient is no longer at risk of serious arrhythmia (e.g., Patient with Wolff-Parkinson-White syndrome treated with surgical ablation),
- Left ventricular ejection fraction (LVEF) <50% by multiple gated acquisition (MUGA) scan or echocardiogram (ECHO) before randomisation.
- Long QT syndrome or family history of idiopathic sudden death or congenital long QT syndrome, or any of the following before randomisation:
- Presence of risk factors for Torsades de Pointe, including uncorrected hypokalaemia or hypomagnesemia, history of cardiac failure, or history of clinically significant/symptomatic bradycardia,
- Concomitant use of medication(s) known to prolong the QT interval and/or known to cause Torsades de Pointe that cannot be discontinued (within 5 half-lives or 7 days prior to initiating the study treatment) or cannot be replaced by a safe alternative,
- Unable to determine the QTcF (using Fridericia's correction),
- Systolic blood pressure (SBP) >160 mmHg or <90 mmHg.
- Patient who has received radiotherapy ≤4 weeks or limited field radiation for palliation ≤2 weeks prior to starting study drug, or who has not recovered to grade 1 or better from related side effects of such therapy (exceptions include alopecia) and/or in whom ≥ 25% of the bone marrow was irradiated
- Patient is currently consuming any of the following foods, supplements, herbal preparations or medications that cannot be discontinued within 7 days of initiating the study treatment:
- Known strong inducers or inhibitors of CYP3A4/5 (including grapefruits),
- Medications predominantly metabolised through CYP3A4/5, with a narrow therapeutic window,
- Patient has known hypersensitivity to any of the study treatment excipients, in particular patients with allergies to soya or peanuts.
- Patient is or plans to participate in another interventional therapeutic clinical trial. Concurrent participation in an observational study is acceptable.
- Patient has malignancies, other than that under study, except for adequately treated cone-biopsied in situ carcinoma of the cervix and basal or squamous cell carcinoma of the skin. Cancer survivors, who have undergone potentially curative therapy for a prior malignancy, with no evidence of relapse/recurrence within ≥5 years, and at negligible risk for recurrence are eligible for the study.
- Patient has any condition/disease, for which the investigator considers that participating in the trial is inappropriate or that may jeopardize treatment and protocol compliance.
- Patient deprived of liberty or under the authority of a tutor.
Trial locations and contacts
44 sites in 1 country.
44 sites in 1 country
France44 sites
CHU Amiens Picardie
Amiens, 80054
Clinique de l'Europe Amiens - CTHE
Amiens, 80090
Centre Hospitalier d'Auxerre
Auxerre, 89000
Sainte Catherine Institut du Cancer Avignon Provence
Avignon, 84918
Centre Hospitalier de la Côte Basque
Bayonne, 64100
Centre Hospitalier de Beauvais
Beauvais, 60021
Hôpital Simone Veil de Blois
Blois, 41000
Institut Bergonié
Bordeaux, 33000
Centre Hospitalier de Boulogne-sur-Mer
Boulogne-sur-Mer, 62321
CHRU Morvan
Brest, 29200
Clinique Pasteur Lanroze - CFRO - Groupe Vivalto Santé
Brest, 29200
Centre François Baclesse
Caen, 14000
Hôpital NOVO
Cergy-Pontoise, 95303
Centre Hospitalier William Morey
Chalon-sur-Saône, 71100
Centre Hospitalier de Cholet
Cholet, 49300
Pôle Santé République (ELSAN)
Clermont-Ferrand, 63000
Centre Jean Perrin
Clermont-Ferrand, 63011
Centre Hospitalier Alpes Léman
Contamine-sur-Arve, 74130
Clinique de Flandre
Coudekerque-Branche, 59210
CHI Fréjus-Saint-Raphaël
Fréjus, 83608
Groupe Hospitalier Mutualiste de Grenoble (GHMG)
Grenoble, 38028
CHD Vendée
La Roche-sur-Yon, 85925
Centre Hospitalier de Versailles - Hôpital André Mignot
Le Chesnay, 78150
Polyclinique de Limoges - Site François Chénieux
Limoges, 87000
Centre Léon Bérard
Lyon, 69008
Hôpital privé Jean Mermoz
Lyon, 69008
Clinique de la Sauvegarde
Lyon, 69009
Institut Paoli Calmettes
Marseille, 13009
ICM Val d'Aurelle
Montpellier, 34298
Medipôle de Nancy - COG-ILC (Polyclinique de Gentilly)
Nancy, 54100
Clinique Hartmann
Neuilly-sur-Seine, 92200
Centre Antoine Lacassagne
Nice, 06189
Hôpital Saint-Louis
Paris, 75010
Groupe Hospitalier Diaconesses Croix Saint-Simon
Paris, 75020
Centre Hospitalier de Pau
Pau, 64046
Hôpital Privé des Côtes-d'Armor (HPCA) - Cario
Plérin, 22190
Institut Godinot
Reims, 51100
Centre Eugène Marquis
Rennes, 35042
CHP Saint-Grégoire - Groupe Vivalto Santé
Saint-Grégoire, 35760
Clinique Sainte-Anne - GH Saint-Vincent
Strasbourg, 67000
Hôpitaux du Léman
Thonon-les-Bains, 74200
Institut Claudius Regaud - IUCT-O
Toulouse, 31059
Institut de Cancérologie de Lorraine
Vandœuvre-lès-Nancy, 54519
Gustave Roussy
Villejuif, 94805
About this study
Official title: A ctDNA Screening Program in Patients With HR+, HER2- Metastatic Breast Cancer for Detection of High-risk Relapse Patients on Any CDK4/6 Inhibitor and a Randomised Phase II Study Comparing Alpelisib Combined With Fulvestrant to Ribociclib Combined With Fulvestrant, in Patients With Persistent Targetable PIK3CA Mutations
After an initial screening phase (SAFIR 03 - SCREENING) to identify patients with blood circulating mutated-PIK3CA tumours persistent, patients will be enrolled in the treatment phase of SAFIR 03 (SAFIR 03 - ARRIBA) that was designed as a randomised, open-label, multicentre, phase II study, for comparison of alpelisib to ribociclib in combination with fulvestrant (as the continuation of the CDK4/6 inhibitor-fulvestrant strategy) in terms of progression-free survival (PFS).
Read the detailed description
INDICATION The population eligible to the screening phase is composed of all women or men with HR+, HER2- metastatic breast cancer who are eligible for first-line treatment with a cyclin-dependent kinases (CDK) 4/6 inhibitor combined with fulvestrant (and a luteinizing hormone realeasing hormone (LH-RH) analogue in men and premenopausal women) in the context of the standard healthcare management. The screening will identify patients with high risk of relapse on any CDK4/6 inhibitor thanks to ctDNA kinetic between baseline and 4 weeks of treatment. The purpose is to early adapt the therapeutic intervention for ctDNA no drop patient to prevent from relapse. This study will propose an intervention for PIK3CA mutated patients with alpelisib vs. ribociclib. Other therapeutic approaches might be proposed to patients with wild type PIK3CA through other protocols.
The randomised study phase will include patients with persistent mutations on exons 4, 9 or 20* of PIK3CA ctDNA after 4 weeks of treatment with any CDK4/6 inhibitor-fulvestrant in first-line setting.
- Conditions
- Breast Cancer Stage IV
- Being tested
- Alpelisib, Ribociclib
- Keywords
- metastatic Breast Cancer, HER2-, RH+, PIK3CA mutated
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AlpelisibDrug
Also called Fulvestrant
Alpelisib 300 mg once daily + fulvestrant 500 mg every 28 days
RibociclibDrug
Also called Fulvestrant
Ribocilcib 600 mg once daily 3 weeks on/1 week off + fulvestrant 500 mg every 28 days
| Study group | Role | What they receive |
|---|---|---|
| ALPELISIB ARM | Experimental | Oral alpelisib (300 mg daily, in 28-day cycle) and fulvestrant as per standard practice. Moreover, men and premenopausal women will receive an LH-RH analogue (goserelin, leuprorelin, or triptorelin) every 28 days ±3 days, as per standard practice Receives: Drug: Alpelisib |
| RIBOCICLIB ARM | Active comparator | Oral ribociclib (600 mg daily, 3 weeks on, then 1 week off treatment in 28-day cycles) and fulvestrant as per standard practice. Moreover, men and premenopausal women will receive an LH-RH analogue (goserelin, leuprorelin, or triptorelin) every 28 days ±3 days, as per standard practice. Receives: Drug: Ribociclib |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression-Free Survival in the study groups
The PFS is the length of time during and after the treatment of a disease that a patient lives with the disease but it does not get worse.
Measured: From randomization to disease progression or death, up to 5 years
Secondary outcomes (9)
Overall Survival in the study groups
Overall survival (OS) is the length of time from randomization that patients enrolled in the study are still alive.
Measured: From randomization to death, up to 5 years
Objective response Rate (ORR) in the study groups
Objective response rate (ORR) is the percentage of patients with a best response during treatment being either complete response (CR) or partial response (PR).
Measured: 5 years
Duration of response in the study groups
Duration of response (DoR) is defined as the time interval from the date of first documented CR or PR to the date of first documented disease progression or death, from any cause.
Measured: 5 years
Clinical Benefit Rate in the study groups
Clinical benefit rate (CBR) is defined as the proportion of patients with a best overall response of CR, PR, or stable disease during treatment.
Measured: 5 years
Time to Response in the study groups
Time to response (TTR) is defined, for subjects with an objective response (OR), as the time from randomisation to the first documentation of OR which is subsequently confirmed.
Measured: From randomization to death, up to 5 years
To validate that randomised patients with residual PIK3CA on ctDNA present a poor outcome compare to non-randomised patient
For this outcome, PFS is defined as the time interval between the date of initiation of standard of care to the date of the first documented disease progression or death, whatever the cause.
Measured: From the date of initiation of standard of care to death, up to 5 years
Safety in each study groups.
The National Cancer Institute-Common Terminology Criteria for Adverse Events version 5 (NCI-CTCAE v5) is widely accepted in the community of oncology research as the leading rating scale for adverse events. This scale, divided into 5 grades (1 = "mild", 2 = "moderate", 3 = "severe", 4 = "life-threatening", and 5 = "death") determined by the investigator, will make it possible to assess the severity of the disorders.
Measured: Throughout study completion, up to 5 years
Overall Survival (OS) in non-randomised patients
For non-randomised patients, OS is the length of time from the date of initiation of standard of care that patients enrolled in the study are still alive.
Measured: From the date of initiation of standard of care to death of any cause, up to 5 years
Progression Free Survival (PFS) in non-randomised patients
For non-randomised patients, PFS is the length of time during and after the treatment of a disease with the standard of care that a patient lives with the disease but it does not get worse.
Measured: From randomization to death, up to 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Nov 2022
- Study start19 Oct 2023
- Primary completion30 Mar 2025
- Study completion20 Jan 2026
Why it stopped: poor accrual
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Breast Cancer Stage IVStudies of the same condition, open and under way.
- More trials run by UNICANCERThe 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 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- After an initial screening phase (SAFIR 03 - SCREENING) to identify patients with blood circulating mutated-PIK3CA tumours persistent, patients will be enrolled in the treatment phase of SAFIR 03 (SAFIR 03 - ARRIBA) that was designed as a randomised, open-label, multicentre, phase II study, for comparison of alpelisib to ribociclib in combination with fulvestrant (as the continuation of the CDK4/6 inhibitor-fulvestrant strategy)
- Masking
- None (open label)
- Enrolment
- 4 participants (actual)
Sponsor and investigators
- Lead sponsor
- UNICANCER
- Sponsor type
- University, hospital or other
- Collaborators
- Novartis, Breast Cancer Research Foundation
- Responsible party
- Sponsor
- Investigators
- Fabrice ANDRE, Principal investigator, Gustave Roussy, Cancer Campus, Grand Paris
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05625087
- Sponsor's protocol ID
- UC-GMP-2206
- Other IDs
- EU CT
- Acronym
- SAFIR 03
- Status last verified
- Sep 2026
- First submitted
- 14 Nov 2022
- Last updated
- 14 Oct 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 14 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A ctDNA Screening Program in Patients With HR+, HER2- Metastatic Breast Cancer for Detection of High-risk Relapse Patients on Any CDK4/6 Inhibitor and a Randomised Phase II Study Comparing Alpelisib Combined With Fulvestrant to Ribociclib Combined With Fulvestrant, in Patients With Persistent Targetable PIK3CA Mutations
- ClinicalTrials.gov ID
- NCT05625087
- Acronym / sponsor ID
- SAFIR 03 / UC-GMP-2206
- Conditions
- Breast Cancer Stage IV
- Keywords
- metastatic Breast Cancer, HER2-, RH+, PIK3CA mutated
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: poor accrual
- Enrolment
- 4 participants (actual)
- Lead sponsor
- UNICANCERUniversity, hospital or other
- Collaborators
- Novartis, Breast Cancer Research Foundation
- Study start
- 19 Oct 2023 (actual)
- Primary completion
- 30 Mar 2025 (actual)
- Study completion
- 20 Jan 2026 (actual)
- First posted
- 22 Nov 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.
After an initial screening phase (SAFIR 03 - SCREENING) to identify patients with blood circulating mutated-PIK3CA tumours persistent, patients will be enrolled in the treatment phase of SAFIR 03 (SAFIR 03 - ARRIBA) that was designed as a randomised, open-label, multicentre, phase II study, for comparison of alpelisib to ribociclib in combination with fulvestrant (as the continuation of the CDK4/6 inhibitor-fulvestrant strategy) in terms of progression-free survival (PFS).
Detailed description
INDICATION The population eligible to the screening phase is composed of all women or men with HR+, HER2- metastatic breast cancer who are eligible for first-line treatment with a cyclin-dependent kinases (CDK) 4/6 inhibitor combined with fulvestrant (and a luteinizing hormone realeasing hormone (LH-RH) analogue in men and premenopausal women) in the context of the standard healthcare management. The screening will identify patients with high risk of relapse on any CDK4/6 inhibitor thanks to ctDNA kinetic between baseline and 4 weeks of treatment. The purpose is to early adapt the therapeutic intervention for ctDNA no drop patient to prevent from relapse. This study will propose an intervention for PIK3CA mutated patients with alpelisib vs. ribociclib. Other therapeutic approaches might be proposed to patients with wild type PIK3CA through other protocols.
The randomised study phase will include patients with persistent mutations on exons 4, 9 or 20* of PIK3CA ctDNA after 4 weeks of treatment with any CDK4/6 inhibitor-fulvestrant in first-line setting.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- After an initial screening phase (SAFIR 03 - SCREENING) to identify patients with blood circulating mutated-PIK3CA tumours persistent, patients will be enrolled in the treatment phase of SAFIR 03 (SAFIR 03 - ARRIBA) that was designed as a randomised, open-label, multicentre, phase II study, for comparison of alpelisib to ribociclib in combination with fulvestrant (as the continuation of the CDK4/6 inhibitor-fulvestrant strategy)
| Arm | Type | Receives |
|---|---|---|
| ALPELISIB ARM | Experimental | Drug: AlpelisibOral alpelisib (300 mg daily, in 28-day cycle) and fulvestrant as per standard practice. Moreover, men and premenopausal women will receive an LH-RH analogue (goserelin, leuprorelin, or triptorelin) every 28 days ±3 days, as per standard practice |
| RIBOCICLIB ARM | Active comparator | Drug: RibociclibOral ribociclib (600 mg daily, 3 weeks on, then 1 week off treatment in 28-day cycles) and fulvestrant as per standard practice. Moreover, men and premenopausal women will receive an LH-RH analogue (goserelin, leuprorelin, or triptorelin) every 28 days ±3 days, as per standard practice. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (40 listed)
- Patient must have signed a written informed consent prior to any study-specific screening procedures (the consent form specifically for the screening phase must be signed).
- Patient is ≥18 years of age.
- Patient has an histologically or cytologically confirmed metastatic breast cancer.
- Patient has a HER2- breast cancer (without HER2 overexpression according to the ASCO-CAP 2018 guidelines).
- Patient has hormone receptor-positive (HR+) breast cancer, defined as having oestrogen receptor (ER) and/or progesterone receptor (PR) expression in ≥10% of tumour cells.
Key exclusion criteria (41 listed)
- Prior exposure to PIK3CA-AKT or CDK4/6 inhibitors.
- Patient that has initiated the CDK4/6 inhibitor treatment.
- Patient with spinal cord compression and/or symptomatic or progressive brain metastases (unless asymptomatic or treated and stable off steroids for ≥30 days before initiating the study treatment).
- Participant with an established diagnosis of diabetes mellitus type I or not controlled type II (based on FG and HbA1c).
- Patient unable to swallow tablets.
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 |
|---|---|---|
| AlpelisibAlso: FulvestrantAlpelisib 300 mg once daily + fulvestrant 500 mg every 28 days | Drug | ALPELISIB ARM |
| RibociclibAlso: FulvestrantRibocilcib 600 mg once daily 3 weeks on/1 week off + fulvestrant 500 mg every 28 days | Drug | RIBOCICLIB ARM |
Primary outcome
Progression-Free Survival in the study groups
Time frame: From randomization to disease progression or death, up to 5 years
The PFS is the length of time during and after the treatment of a disease that a patient lives with the disease but it does not get worse.
9 secondary outcomes
Overall Survival in the study groups
Time frame: From randomization to death, up to 5 years
Objective response Rate (ORR) in the study groups
Time frame: 5 years
Duration of response in the study groups
Time frame: 5 years
Clinical Benefit Rate in the study groups
Time frame: 5 years
Time to Response in the study groups
Time frame: From randomization to death, up to 5 years
To validate that randomised patients with residual PIK3CA on ctDNA present a poor outcome compare to non-randomised patient
Time frame: From the date of initiation of standard of care to death, up to 5 years
Safety in each study groups.
Time frame: Throughout study completion, up to 5 years
Overall Survival (OS) in non-randomised patients
Time frame: From the date of initiation of standard of care to death of any cause, up to 5 years
Progression Free Survival (PFS) in non-randomised patients
Time frame: From randomization to death, up to 5 years
Results and safety
The study was stopped early (reason given: poor accrual). Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Oct 2026.
- Individual participant dataSharing planned: No
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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.
Fabrice ANDRE principal investigator
Gustave Roussy, Cancer Campus, Grand Paris
44 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Alpelisib and Ribociclib in people with Breast Cancer Stage IV, run by UNICANCER at 44 sites in France.
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 40 inclusion and 41 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: stopped early, as of the sponsor's last update on 14 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 44 sites in France. 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. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study was stopped early (reason given: poor accrual). Results are not available in the source record.
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?
Progression-Free Survival in the study groups (time frame: From randomization to disease progression or death, up to 5 years). 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 14 Oct 2026.