ER-positive and HER2-negative Metastatic or Locally Advanced Breast CancerPhase 2DOLAFNCT04053322
Durvalumab, With Olaparib and Fulvestrant in Advanced ER+, HER2- Breast Cancer Patients.
A Phase 2 study testing Durvalumab, Olaparib and Fulvestrant in people with ER-positive and HER2-negative Metastatic or Locally Advanced Breast Cancer and a Germline or Somatic BRCA Mutation, or a Deleterious Alteration of Other Genes Involved in Homologous Recombination Repair (HRR) or in MSI Status, run by UNICANCER at 2 sites in France.
Trial summary
This study evaluates the efficacy of the combination of olaparib, durvalumab, and fulvestrant for the treatment of patients with ER-positive, HER2-negative, locally advanced or metastatic breast cancer with BRCA gene alterations or alterations of genes involved in homologous recombination repair (HRR) or… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- ER-positive and HER2-negative Metastatic or Locally Advanced Breast Cancer, a Germline or Somatic BRCA Mutation, or a Deleterious Alteration of Other Genes Involved in Homologous Recombination Repair (HRR) or in MSI Status
- What is being tested?
- Durvalumab, Olaparib and Fulvestrant
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 172 participants
- Where
- 2 sitesFrance
- Study dates
- 26 Aug 2019to Aug 2027
- Phase
- Phase 2
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
- Histologically confirmed ER-positive (≥10%), HER2-negative (0, 1+, 2+, and no HER2 gene amplification by ISH), metastatic or locally advanced breast cancer that is not amenable to resection or radiation with curative intent.
- Patients aged ≥18 years old (post-menopausal or pre/per-menopausal women and men).
- Documented personal germline alteration in BRCA1 or BRCA2 that is predicted to be deleterious. Testing may be performed at any time prior to inclusion.
- OR Deleterious germline or somatic alterations implicated in the HRR pathway (ATM, BARD1, BRCA1, BRCA2, BRIP1, CDK12, CHEK1, CHEK2, FANCA, FAND2, FANCL, MRE11A, NBN, PALB2, PPP2R2A, RAD51B, RAD51C, RAD51D and RAD54L) or in MSI status all based on central tumor next generation DNA sequencing performed at screening visit.
- A tumor biopsy sample must be available: if obtaining an adequate metastatic tumor biopsy is impossible (including bone metastasis), analyses will be done on a biopsy from the primary breast tumor.
- Patients with a life expectancy ≥16 weeks.
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- ECOG performance status 0-1.
- At least one evaluable lesion, either measurable or non-measurable that can be accurately assessed at baseline by CT-scan or MRI by RECIST v1.1.
- Patients could have received 1 line of endocrine therapy (including CDK4/6 inhibitor, but excluding fulvestrant or mTOR inhibitor) and/or 1 line of chemotherapy in the metastatic setting.
- Within 28 days prior to administration of study treatment, patients must have adequate organ and bone marrow functions:
- Hemoglobin ≥10 g/dL with no blood transfusion in the past 28 days.
- Absolute neutrophil count (ANC) ≥1.5 x 10⁹/L.
- Platelet count ≥100 x 10⁹/L.
- Total bilirubin ≤1.5 x institutional upper limit of normal (ULN).
- Aspartate aminotransferase (AST)/Alanine aminotransferase (ALT) ≤2.5 x institutional ULN unless liver metastases are present in which case AST/ALT levels must be ≤5 x ULN.
- Estimated creatinine clearance ≥51 mL/min according to the Cockcroft-Gault equation or based on a 24-hour urine test.
- Postmenopausal or evidence of non-childbearing status for women of childbearing potential: negative urine or serum pregnancy test within 28 days of study treatment and confirmed prior to treatment on day 1.
- Woman of childbearing potential patients must agree to use adequate contraception for the duration of trial participation and up to 3 months after the last dose of olaparib.
- Male patients must use a condom during treatment and for 3 months after the last dose of olaparib when having sexual intercourse with a pregnant woman or with a woman of childbearing potential. Female partners of male patients should also use a highly effective form of contraception.
- Patients having provided written informed consent prior to any study-related procedures.
- Patient is willing and able to comply with the protocol for the duration of the study.
- Patients must have national social insurance coverage (applicable only in France).
Who cannot join
- Patients without olaparib targetable genomic anomaly identified during the screening phase.
- Gene variants (class 1, 2, and 3) of unknown significant prognostic for olaparib sensitivity.
- Patients with history of other malignancy except non-melanoma skin cancer, in-situ cancer of the cervix, or solid tumors including lymphomas (without bone marrow involvement) curatively treated and with no evidence of disease for ≥5 years prior to study entry.
- Patients with myelodysplastic syndrome/acute myeloid leukemia or with features suggestive of myelodysplastic syndrome/acute myeloid leukemia.
- Patients with symptomatic uncontrolled brain metastases. In addition, treatment of the central nervous system disease must have finished (whole brain radiation, radiosurgery) at least 2 weeks before Cycle 1 Day 1. Patients must not require >10 mg of prednisone per day or an equivalent dose of other corticosteroids.
- Prior treatment with a PARP inhibitor (including olaparib) and/or PD-1 or PD-L1 inhibitor (including durvalumab).
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- Patients having received anticancer chemotherapy or any other investigational therapy within 3 weeks prior of the study. Endocrine therapy must have been discontinued 7 or more days before Cycle 1 Day 1. Palliative radiotherapy must have been completed 14 or more days before Cycle 1 Day 1. Biphosphonates and denosumab are allowed.
- Major surgery within 2 weeks prior to registration. Patients must have recovered from earlier major surgery before registration.
- Persistent toxicities (NCI-CTCAE grade ≥2) caused by previous cancer therapy, excluding alopecia and peripheral neuropathy (grade ≤2).
- Patients with known history of bleeding diathesis or hemorrhage.
- Active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination and radiographic findings, and tuberculosis testing in line with local practice), hepatitis B (HBV; known positive HBV surface antigen (HBsAg) result), hepatitis C (HCV), or human immunodeficiency virus (positive HIV 1/2 antibodies). Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody (anti-HBc) and absence of HBsAg) are eligible. Patients positive for HCV antibody are eligible only if polymerase chain reaction is negative for HCV RNA.
- Patients considered at poor medical risk due to a serious, uncontrolled medical disorder, non-malignant systemic disease or active, uncontrolled infection, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina pectoris, cardiac arrhythmia, active peptic ulcer disease or gastritis, and active bleeding diatheses. Recent (within 3 months) myocardial infarction, uncontrolled major seizure disorder, unstable spinal cord compression, superior vena cava syndrome, extensive interstitial bilateral lung disease on High Resolution Computed Tomography (HRCT) scan, or any psychiatric disorder that prohibits obtaining informed consent.
- Resting ECG indicating uncontrolled, potentially reversible cardiac conditions, as judged by the investigator (eg. unstable ischemia, uncontrolled symptomatic arrhythmia, congestive heart failure, QTcF prolongation >470 ms, electrolyte disturbances, etc.), or patients with congenital long QT syndrome.
- Current or prior use of immunosuppressive medication within 28 days before the first dose of durvalumab, with the exceptions of intranasal or inhaled corticosteroids or systemic corticosteroids at physiological doses, not exceeding 10 mg/day of prednisone, or an equivalent corticosteroid.
- Active or prior documented autoimmune disease within the past 2 years except for patients with vitiligo or psoriasis without systemic treatment during the past 2 years.
- Active or prior documented inflammatory bowel disease (Crohn's disease, ulcerative colitis).
- History of allogeneic organ transplant, including previous allogenic bone marrow transplant or double umbilical cord blood transplantation.
- Received live attenuated vaccination within 30 days prior to study entry.
- Patients unable to swallow orally administered medication, patients with gastrointestinal disorders likely to interfere with the absorption of olaparib, and patients with long-term oral anticoagulant therapy (excluding Warfarin).
- Pregnant or breast feeding women.
- Known hypersensitivity to durvalumab, olaparib, and/or fulvestrant or any of the excipients of these products.
- Concomitant use of a known :
- Strong or moderate CYP3A inhibitors. The required washout period prior to starting olaparib is 2 weeks.
- Strong or moderate CYP3A inducers. The required washout period prior to starting olaparib is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents.
- Warning: For men and pre/per-menopausal women who will receive goserelin (Zoladex®) in combination with study drugs, the use of concomitant drugs which can prolong the QT interval or induce Torsades de pointes should be evaluated with caution.
- Whole blood transfusions in the 120 days prior to study enrolment (packed red blood cells and platelet transfusions are acceptable, if outside of 28 days prior to treatment).
- Persons deprived of their liberty or under protective custody or guardianship.
- Patients enrolled in another therapeutic study within 30 days prior inclusion.
- Involvement in the planning and/or conduct of the study.
Trial locations and contacts
2 sites in 1 country.
France2 sites
Institut de Cancerologie de Montpellier
Montpellier, 34000
Centre Henri-Becquerel
Rouen, 76000
About this study
Official title: An International Multicenter Phase II Trial of Durvalumab (MEDI4736) Plus OLAparib Plus Fulvestrant in Metastatic or Locally Advanced ER-positive, HER2-negative Breast Cancer Patients Selected Using Criteria That Predict Sensitivity to Olaparib
This study evaluates the efficacy of the combination of olaparib, durvalumab, and fulvestrant for the treatment of patients with ER-positive, HER2-negative, locally advanced or metastatic breast cancer with BRCA gene alterations or alterations of genes involved in homologous recombination repair (HRR) or microsatellite instability (MSI) status.
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
DurvalumabDrug
Durvalumab will start 4 weeks after the first dose of olaparib (Cycle 2, Day 1) at 1500 mg intravenous (IV) every 4 weeks.
OlaparibDrug
2 x 150 mg tablets taken in the morning and in the evening orally (2 X 300 mg daily)
FulvestrantDrug
Two intramuscular injections of 250 mg each on Cycle 1 Days 1 and 15, and then Day 1 of each subsequent 28-day cycle.
| Study group | Role | What they receive |
|---|---|---|
| Study Arm | Experimental | Not described Receives: Drug: Durvalumab; Drug: Olaparib; Drug: Fulvestrant |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression-free survival rate (PFSR)
The progression-free survival rate at 24 weeks defined as the percentage of patients alive without disease progression at 24 weeks after inclusion. PFSR will be evaluated by local investigator using Response Evaluation Criteria in Solid Tumours version 1.1 (RECIST v1.1). The death of a patient for any cause within 24 weeks will be considered as failure
Measured: 24 weeks
Secondary outcomes (5)
The incidence of adverse events (Safety)
Adverse events will be graded using NCI-CTCAE v5.0
Measured: 6 years
Overall Survival (OS)
OS is defined as the interval between the date of inclusion and the date of death from any cause. A patient alive will be censored at the last date of follow-up
Measured: 6 years
Objective response rate (ORR)
The ORR defined as the percent of patients with a complete response (CR) or a partial response (PR).
Measured: 3 years
Duration of response (DoR).
The DoR defined as the duration between the time measurement criteria are first met for CR or PR until the first date that recurrent disease is objectively documented
Measured: 3 years
Progression-free survival (PFS)
PFS defined as the interval between the date of inclusion and the date of progression or death. A patient alive and without progression will be censored at the last date of follow-up.
Measured: 6 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Aug 2019
- Study start26 Aug 2019
- Primary completion15 Nov 2023
- Study completionAug 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for ER-positive and HER2-negative Metastatic or Locally Advanced Breast CancerStudies of the same condition, open and under way.
- 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
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 172 participants (actual)
Sponsor and investigators
- Lead sponsor
- UNICANCER
- Sponsor type
- University, hospital or other
- Collaborators
- ARCAGY/ GINECO GROUP, SOLTI Breast Cancer Research Group
- Responsible party
- Sponsor
- Investigators
- Severine GUIU, Principal investigator, INSTITUT DE CANCEROLOGIE DE MONTPELLIER
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04053322
- Sponsor's protocol ID
- UC-0140/1812
- Other IDs
- 2018-003832-57, 2018
- Acronym
- DOLAF
- Status last verified
- Jul 2026
- First submitted
- 9 Aug 2019
- Last updated
- 24 Jul 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Guiu S, Balmana J, Lemercier P, Follana P, Goncalves A, Bigot F, Frenel JS, Brain E, Mailliez A, Chakiba Brugere C, Curtit E, Derbel O, Dalenc F, Derquin F, Duhoux F, Canon JL, Pimentel I, Chevalier LM, Buisson A, Guyonneau C, Lemonnier J, Delaloge S, Bachelot T. Combination of Olaparib, Durvalumab, and Fulvestrant in Patients with Advanced ER+/HER2- Breast Cancer and Selected Genomic Alterations: Results of the DOLAF Trial. Clin Cancer Res. 2025 Nov 14;31(22):4633-4643. doi: 10.1158/1078-0432.CCR-24-4221.
PubMed 40986529