Olaparib & Radiation Therapy for Patients Triple Negative Breast Cancer (TNBC) (RadioPARP)

A Phase I of Olaparib With Radiation Therapy in Patients With Inflammatory, Loco-regionally Advanced or Metastatic TNBC (Triple Negative Breast Cancer) or Patient With Operated TNBC With Residual Disease

A Phase I of Olaparib with Radiation Therapy in Patients With Inflammatory, Loco-regionally Advanced or Metastatic TNBC (triple negative breast cancer) or Patient With Operated TNBC with Residual Disease.

Study Overview

• Status: Completed
• Conditions: Radiotherapy Side Effect; Breast Neoplasm Malignant Female; Breast Neoplasms, Triple-Negative
• Intervention / Treatment: Drug: Olaparib; Radiation: Radiation therapy

Detailed Description

Open label phase I, dose escalation trial for patients with triple negative inflammatory, loco-regional advanced or metastatic breast cancer either inoperable after neoadjuvant chemotherapy or operated with residual disease (after neoadjuvant chemotherapy).

• Study Type: Interventional
• Enrollment (Actual): 24
• Phase: Phase 1

Contacts and Locations

Study Locations

• France
  • Paris, France, 75005
    • Institut Curie

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Woman aged >18 years.

2. Histologically confirmed triple negative breast cancer with loco-regional radiotherapy indication :

   1. Non-operated with either:

      1. Inflammatory breast cancer in progression during neoadjuvant chemotherapy or inoperable after neoadjuvant chemotherapy.
      2. Loco-regional advanced breast cancer in progression during neoadjuvant chemotherapy or inoperable after neoadjuvant chemotherapy (T ≥ 3 and/or N ≥ 1; with evaluable disease according to RECIST 1.1 criteria).
      3. Non operable metastatic breast cancer (all T, all N, M1; with evaluable disease according to RECIST 1.1 criteria) needing local and regional treatment in case of good metastatic control after chemotherapy.
   2. Or patient operated after neoadjuvant treatment and surgery with residual disease (non-pCR and/or pN+ disease).
3. Neoadjuvant chemotherapy (containing anthracyclines or taxanes or the combination of both or containing platinum-based chemotherapy) willingness to discontinue any cytotoxic chemotherapeutic agents, immunotherapy, and targeted therapies at least two weeks prior to start of Olaparib.
4. ECOG performance status < 2.
5. Life expectancy greater than 6 months.

6. Adequate hematologic, renal and hepatic function (assessed within the two weeks prior to registration and within the month prior to the commencement of protocol treatment). For patients who have stopped chemotherapy two weeks prior to protocol treatment, hematologic function must be re-assessment 1 or 2 days before the first Olaparib intake:

   1. Haemoglobin ≥ 10.0 g/dL.
   2. Absolute Neutrophil Count (ANC) ≥ 1.5 x 109/L.
   3. White Blood Cells (WBC) > 3 x 109/L.
   4. Platelet count ≥ 100 x 109/L.
   5. Total bilirubin ≤ 1.5 x institutional upper limit of normal (ULN) (except in case of Gilbert syndrome).
   6. AST (SGOT)/ALT (SGPT) ≤ 2.5 x institutional upper limit of normal unless liver metastases are present in which case it must be ≤ 5 x ULN.
   7. Patients must have Creatinine Clearance estimated using the Cockcroft-Gault equation of ≥ 51 mL/min
7. Urine or serum negative pregnancy test within two weeks prior to registration for non-postmenopausal patients. Negative pregnancy test confirmed within 1 or 2 days prior to first Olaparib intake.
8. For woman with child-bearing potential, an efficacious contraception following sponsor recommendations must be used during the whole treatment period and up to three months after the last Olaparib administration.
9. Ability to swallow and retain oral medications without gastrointestinal disorders likely to interfere with absorption of the study medication.
10. Affiliation to the French Social Security System.
11. Ability to understand and the willingness to sign a written informed consent document.

Exclusion Criteria:

1. Radiation therapy: prior history of radiation therapy to the ipsilateral breast and/or regional nodes (except prior radiation therapy to other sites).
2. Patient with unresolved or unstable, NCI-CTCAE v4.03 (National Cancer Institute Common Toxicity Criteria for Adverse Events) Grade 3 or greater toxicity from prior administration of prior anti-cancer treatment.
3. Patient with clinically and uncontrolled significant comorbidity: major cardiac, respiratory, renal, hepatic, gastrointestinal, hematologic or neurological/psychiatric disease or disorder, including but not limited to: active uncontrolled infection; symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia; any other illness condition(s) that could exacerbate potential toxicities, require excluded therapy for management, or limit compliance with study requirements.
4. Patient with second primary cancer, except : adequately treated non-melanoma skin cancer, curatively treated in-situ cancer of the cervix, or other solid tumors curatively treated with no evidence of disease for ≥ 5 years.
5. Concomitant anti-cancer treatment during protocol treatment and/or not completed at least 2 weeks prior to Olaparib initiation, except bisphosphonates and RANK inhibitors without restriction even during protocol treatment as long as these where started at least 4 weeks prior to study treatment initiation.
6. Any previous treatment with a PARP (Poly (Adenosine diphosphate [ADP]-Ribose) Polymerase) inhibitor, including Olaparib.
7. History of allergic reactions attributed to compounds of similar chemical or biologic composition to Olaparib.
8. Patient being treated with drugs recognized as being strong inhibitors or inducers of the isoenzyme CYP3A (Rifabutin, Rifampicin, Clarithromycin, Ketoconazole, Itraconazole, Voriconazole, Ritonavir, Telithromycin) within the last 7 days before first Olaparib intake.
9. Resting ECG with QTc > 470 msec on 2 or more time points within a 24 hour period or family history of long QT syndrome.
10. Blood transfusions within 14 days prior to treatment start.
11. Patient with myelodysplastic syndrome / acute myeloid leukaemia.
12. Pregnant or breastfeeding woman.
13. Patient already included in another clinical trial with an investigational drug.
14. Patient individually deprived of liberty or placed under the authority of a tutor.
15. Patient with any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Olaparib + radiation therapy; One week of Olaparib alone followed by 5 weeks of Olaparib and concurrent loco-regional radiotherapy. Five levels of dose of Olaparib are expected.	Drug: Olaparib; five levels of dose, per os administration, twice daily each day; Other Names: PARP (Poly (Adenosine diphosphate [ADP]-Ribose) Polymerase) inhibitor, Lynparza, AZD-2281; Radiation: Radiation therapy; 3D conformal radiotherapy or intensity-modulated radiotherapy (IMRT), Simultaneous Integrated Boost (SIB), postoperative radiotherapy; Other Names: Radiotherapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Determination of the Maximal Tolerated Dose of Olaparib administered with concurrent loco regional radiotherapy	Incidence of early Dose Limited Toxicity (DLTs: early adverse effects related to Olaparib administered with concurrent radiotherapy) to determinate the Maximal Tolerated Dose (MTD) of Olaparib administered with concurrent loco regional radiotherapy in patients who have triple negative inflammatory, loco-regional advanced or metastatic breast cancer either inoperable after neoadjuvant chemotherapy or operated patient with residual disease (after neoadjuvant chemotherapy).	2 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of Serious Adverse Events (SAEs), graded according to NCI-CTCAE version 4.03 criteria to assess the safety profile of Olaparib administered with concurrent loco-regional radiotherapy.	Incidence of Serious Adverse Events (SAEs), graded according to NCI-CTCAE version 4.03 criteria	2 years
Incidence and severity of Adverse Events (AEs), graded according to NCI-CTCAE version 4.03 criteria to assess the safety profile of Olaparib administered with concurrent loco-regional radiotherapy.	Incidence and severity of Adverse Events (AEs), graded according to NCI-CTCAE version 4.03 criteria	2 years
Incidence and severity of laboratory abnormalities, graded according to NCI-CTCAE version 4.03 criteria to assess the safety profile of Olaparib administered with concurrent loco-regional radiotherapy.	Incidence and severity of laboratory abnormalities, graded according to NCI-CTCAE version 4.03 criteria	2 years
Incidence of acute toxicity 2 weeks and 6 weeks after the end of radiotherapy to assess the safety profile of Olaparib administered with concurrent loco-regional radiotherapy.	Incidence of acute toxicity 2 weeks and 6 weeks after the end of radiotherapy	2 years
Incidence of late toxicity at 1 year and at 2 years as of initiation of radiation therapy to assess the safety profile of Olaparib administered with concurrent loco-regional radiotherapy.	Incidence of late toxicity at 1 year and at 2 years as of initiation of radiation therapy	2 years
Incidence of treatment discontinuations and treatment modifications due to AEs to assess the safety profile of Olaparib administered with concurrent loco-regional radiotherapy.	Incidence of treatment discontinuations and treatment modifications due to AEs	2 years
Evaluation of the Objective Response Rate (ORR) to evaluate Olaparib administered with concurrent loco regional radiotherapy efficacy profile	Evaluation of the Objective Response Rate (ORR) to treatment	2 years
Evaluation of the Complete Response Rate to evaluate Olaparib administered with concurrent loco regional radiotherapy efficacy profile	Evaluation of the Complete Response Rate to treatment	2 years
Evaluation of Pathological Response Rate (pRR) after salvage surgery to evaluate Olaparib administered with concurrent loco regional radiotherapy efficacy profile	Evaluation of Pathological Response Rate (pRR) after salvage surgery	2 years
Evaluation of the loco-regional Progression Free Survival (l-PFS) to evaluate Olaparib administered with concurrent loco regional radiotherapy efficacy profile	Evaluation of the loco-regional Progression Free Survival (l-PFS)	2 years
Evaluation of the Progression Free Survival (PFS) or Disease Free survival (DFS) according to stage of disease to evaluate patient outcome	Evaluation of the Progression Free Survival (PFS) or Disease Free survival (DFS)	2 years
Evaluation of the distant relapse rate to evaluate patient outcome	Evaluation of the distant relapse rate	2 years
Evaluation of patient outcome by evaluation of the Overall Survival (OS).	Evaluation Overall Survival (OS).	2 years
Evaluation of patient outcome by evaluate disease specific survival rate.	Evaluation of the disease specific survival rate.	2 years
Explore biomarkers of Olaparib activity in combination with concurrent radiotherapy.	Exploration of biomarkers of Olaparib associated with radiotherapy on biopsies.	2 years

Collaborators and Investigators

• Sponsor: Institut Curie
• Collaborators: AstraZeneca
• Investigators: Study Director: Youlia KIROVA, MD, Institut Curie

Publications and helpful links

General Publications

• Loap P, Loirat D, Berger F, Rodrigues M, Bazire L, Pierga JY, Vincent-Salomon A, Laki F, Boudali L, Raizonville L, Mosseri V, Jochem A, Eeckhoutte A, Diallo M, Stern MH, Fourquet A, Kirova Y. Concurrent Olaparib and Radiotherapy in Patients With Triple-Negative Breast Cancer: The Phase 1 Olaparib and Radiation Therapy for Triple-Negative Breast Cancer Trial. JAMA Oncol. 2022 Dec 1;8(12):1802-1808. doi: 10.1001/jamaoncol.2022.5074.
• Loap P, Loirat D, Berger F, Ricci F, Vincent-Salomon A, Ezzili C, Mosseri V, Fourquet A, Ezzalfani M, Kirova Y. Combination of Olaparib and Radiation Therapy for Triple Negative Breast Cancer: Preliminary Results of the RADIOPARP Phase 1 Trial. Int J Radiat Oncol Biol Phys. 2021 Feb 1;109(2):436-440. doi: 10.1016/j.ijrobp.2020.09.032. Epub 2020 Sep 21.

Study record dates

Study Major Dates

• Study Start (Actual): July 24, 2017
• Primary Completion (Actual): February 17, 2020
• Study Completion (Actual): November 29, 2021

Study Registration Dates

• First Submitted: March 2, 2017
• First Submitted That Met QC Criteria: April 5, 2017
• First Posted (Actual): April 12, 2017

Study Record Updates

• Last Update Posted (Estimated): November 24, 2025
• Last Update Submitted That Met QC Criteria: November 19, 2025
• Last Verified: November 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Wounds and Injuries; Neoplasms by Site; Neoplasms; Skin Diseases; Breast Diseases; Breast Neoplasms; Skin and Connective Tissue Diseases; Triple Negative Breast Neoplasms; Radiation Injuries; Heterocyclic Compounds; Heterocyclic Compounds, 2-Ring; Heterocyclic Compounds, Fused-Ring; Therapeutics; Nucleic Acids, Nucleotides, and Nucleosides; Carbohydrates; Glycosides; Purines; Ribonucleotides; Nucleotides; Adenine Nucleotides; Purine Nucleotides; Polyribonucleotides; Polynucleotides; Adenosine Diphosphate Sugars; Nucleoside Diphosphate Sugars; Radiotherapy; olaparib; Poly A; Adenosine Diphosphate; Adenosine Diphosphate Ribose
• Other Study ID Numbers: IC 2016-01 RadioPARP; 2016-001837-28 (EudraCT Number)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: Sponsor will share de-identified data sets. Documents generated under the project will be disseminated in accordance with Institut Curie policies.
• IPD Sharing Time Frame: Data requests can be submitted starting 9 months after last article publication and will be made accessible for up to 12 months.
• IPD Sharing Access Criteria: Access to trial individual participant data can be requested by qualified researchers engaging in independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a data sharing agreement (DSA).
• IPD Sharing Supporting Information Type: SAP

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No