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Neoadjuvant Olaparib monotherapy group

Phase 3

Breast Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: Jul 14, 2026

Target and mechanism

Molecular targetPARP1, PARP3, PARP2
Target classInhibitor
ModalitySmall molecule

Also known as Olaparib, olaparib, Olaparib 300mg tablets

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMCBiomarker
Total Trials3
Total Enrollment1,928

FDA Designations

No designations recorded

Clinical trial landscape

Neoadjuvant Olaparib monotherapy group · 3 trials · 2 indications

Phase 3 1Phase 2 1Phase 1 1
NCT02032823Olaparib as Adjuvant Treatment in Patients With Germline BRCA Mutated High Risk HER2 Negative Primary Breast CancerBreast Cancer
ACTIVE NOT_RECRUITING1,837 Analytics
PHASE3ACTIVE NOT_RECRUITING
Olaparib as Adjuvant Treatment in Patients With Germline BRCA Mutated High Risk HER2 Negative Primary Breast Cancer
Breast CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Invasive Disease Free Survival (IDFS)
From date of randomisation to data cut off: 27 March 2020 (approximately 5 years 11 months)

An IDFS event is defined as the first occurrence of loco-regional or distant recurrence or new cancer or death from any cause.

To evaluate the efficacy, measured by pCR (pathological complete response) rate, of olaparib monotherapy and olaparib plus durvalumab combination therapy, as assessed by central pathology review.
Approx. 4 to 6 months

pCR is defined as ypT0/Tis ypN0 (ie, no invasive residual in breast and the axillary lymph nodes on evaluation of the complete resected breast specimen and all sampled regional lymph nodes) following completion of neoadjuvant systemic therapy.

Frequency and severity of adverse events
4 weeks

Phase I: frequency and severity of adverse events will be measured using common toxicity criteria for adverse events version 5.

Intracranial Disease control rate
6 months

Phase II: Intracranial disease control rate will be defined as the percentage of subjects with \[complete response (CR) + partial response (PR) + stable disease\] per RANO-BM criteria at 6 months after study treatment initiation.

Secondary Endpoints

Distant Disease Free Survival (DDFS)
From date of randomisation to data cut off: 27 March 2020 (approximately 5 years 11 months)
Overall Survival (OS)
From date of randomisation to data cut off: 12 July 2021 (approximately 7 years 3 months)
Number of Participants With Contralateral Invasive and Non-invasive Breast Cancer, New Primary Ovarian Cancer, New Primary Fallopian Tube Cancer and New Primary Peritoneal Cancer
From date of randomisation to data cut off: 05 June 2024 (approximately 10 years 2 months)
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
OlaparibEXPERIMENTALOlaparib tablets 300mg b.i.d. p.o.
PlaceboPLACEBO_COMPARATORPlacebo tablets b.i.d. p.o.
Cohort AEXPERIMENTALCohort A will consist of a lower-risk population of participants with HER2-negative ER-negative or ER-low defined as having a tumour size \>5 mm and ≤20 mm and N0 (T1b-c/N0).
Cohort BEXPERIMENTALCohort B will consist of a higher-risk population of participants with HER2-negative ER-negative or ER-low defined as having a tumour size of \>20 mm but ≤50 mm and N0 (T2/N0), or having a tumour size of \>1 mm but ≤20 mm and N1 (T1/N1).
Study Treatment ArmEXPERIMENTALCycle 1 of study treatment will consist of Olaparib twice daily concurrently with stereotactic radiosurgery (SRS). Olaparib will start one week prior to SRS and continue during and following SRS (1-5 fractions) for up to 28 days total. Once the subject has recovered from SRS, Cycle 2 will be initiated with physician's choice systemic therapy and durvalumab. Cycle 2+ will equal 21 days. During Cycles 2 and 3, physician's choice systemic monotherapy will be given along with durvalumab. Each cycle will last 21 days. Imaging to evaluate intracranial and extracranial disease will be performed after Cycle 3, and subjects with response will continue with the systemic therapy and durvalumab until progression (intracranial or extracranial), unacceptable toxicity or death.

Interventions

NameTypeDescription
OlaparibDRUGPatients will be administred olaparib orally twice daily (b.i.d.) at 300 mg. Two (2) x 150 mg olaparib tablets should be taken at the same times each morning and evening of each day, approximately 12 hours apart with approximately 240 ml of water
PlaceboDRUGPatients will be administred matching placebo. Two (2) tablets should be taken at the same times each morning and evening of each day, approximately 12 hours apart with approximately 240 ml of water
Neoadjuvant Olaparib monotherapy groupDRUGNeoadjuvant olaparib monotherapy (300 mg BID) for four to six 28-day cycles.
Neoadjuvant combination therapy with olaparib plus durvalumabCOMBINATION_PRODUCTNeoadjuvant combination therapy with olaparib (300 mg BID) plus durvalumab (1500 mg IV Q4W) for four to six 28-day cycles.
Stereotactic RadiosurgeryRADIATIONSRS 1-5 fractions will be given per institutional standards
DurvalumabDRUGDurvalumab 1120 mg IV over 60 minutes Day 1 of each cycle 21 day cycle.
Physicians Choice systemic chemotherapyDRUGOlaparib: 300mg PO BID; Days 1-21 Paclitaxel: 80 mg/m2 IV over 60 min; Day 1 and 8 Nab-paclitaxel:100 mg/m2 IV over 30 min; Day 1 and 8 Eribulin: 1.4 mg/m2 IV over 2-5 min; Day 1 and 8 Carboplatin: AUC 2 mg/ml/min IV over 30-60 min; Day 1 and 8 Cisplatin: 75 mg/m2 IV over 30-60 min; Day 1 Capecitabine: 1000 mg/m2 PO BID; Days 1-14 Gemcitabine: 1000 mg/m2 IV over 30 min; Day 1 and 8 Gemcitabine + Carboplatin: 1000mg/m2 IV over 30-60 min; Day 1 and 8
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Eligibility Criteria

Age Range18 Years to 130 Years
SexALL
Healthy VolunteersNo
Study Sites698

Inclusion Criteria: * Histologically confirmed non-metastatic primary invasive adenocarcinoma of the breast that is one of the following phenotypes: 1. Triple negative breast cancer defined as: ER and PgR negative AND HER2 negative (not eligible for anti-HER2 therapy) 2. ER and/or PgR positive...

Countries:United StatesArgentinaAustraliaAustriaBelgiumCanadaChinaFranceGermanyHungaryIcelandIsraelItalyJapanNetherlandsPolandPortugalPuerto RicoSouth KoreaSpainSwedenSwitzerlandTaiwanUnited Kingdom
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Competitive Landscape -Breast Cancer 402 trials

Top 20 of 92 competitors

CompanyTickerTrialsLead PhaseDrugs
AstraZeneca PLCAZN47PHASE3Fulvestrant, Capivasertib
Merck & Co., Inc.MRK12PHASE3Pembrolizumab, Paclitaxel, Doxorubicin, Epirubicin, Cyclophosphamide
Eli Lilly and CompanyLLY27PHASE3Abemaciclib, Standard Adjuvant Endocrine Therapy
BioNTech SE Sponsored ADRBNTX7PHASE3DB-1303/BNT323, T-DM1
Gilead Sciences, Inc.GILD13PHASE3Sacituzumab Govitecan-hziy, Eribulin, Capecitabine Product, Gemcitabine, Vinorelbine
Novartis AG Sponsored ADRNVS30PHASE3Ribociclib
Pfizer Inc.PFE34PHASE3ARV-471, Fulvestrant
BeOne Medicines Ltd. Sponsored ADRONC5PHASE3BGB-43395, Letrozole, Abemaciclib, Palbociclib, Ribociclib
Olema Pharmaceuticals, Inc.OLMA5PHASE3Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Jazz Pharmaceuticals Public Limited CompanyJAZZ3PHASE3Zanidatamab, Trastuzumab, Eribulin, Vinorelbine, Gemcitabine
Celcuity Inc.CELC3PHASE3Gedatolisib, Palbociclib, Fulvestrant, Alpelisib
Relay Therapeutics, Inc.RLAY2PHASE3Zovegalisib, Capivasertib, Fulvestrant
GSK plc Sponsored ADRGSK2PHASE3Niraparib
Greenwich LifeSciences, Inc.GLSI1PHASE3GLSI-100
Bristol-Myers Squibb CompanyBMY5PHASE2Iza-bren, Nab-paclitaxel, Paclitaxel, Capecitabine, Carboplatin
BriaCell Therapeutics CorpBCTX2PHASE3SV-BR-1-GM, Cyclophosphamide, Interferon infiltration of the inoculation site, Retifanlimab, Treatment of Physician's Choice
Incyte CorporationINCY4PHASE2Ruxolitinib, Capecitabine, Regorafenib
Natera, Inc.NTRA3PHASE2Discontinuation of the anti-HER2 maintenance therapy
Puma Biotechnology, Inc.PBYI3PHASE2Neratinib, Loperamide, Colesevelam
Atossa Therapeutics, Inc.ATOS1PHASE2endoxifen, goserelin
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Recent Changes (Last 90 Days)

LOWJul 14, 2026NCT02032823lastUpdatePostDate: changed
LOWJul 14, 2026NCT02032823lastUpdatePostDate: changed
LOWJul 7, 2026NCT05498155lastUpdatePostDate: changed
LOWJul 7, 2026NCT05498155lastUpdatePostDate: changed

Frequently asked questions about Neoadjuvant Olaparib monotherapy group

What is Neoadjuvant Olaparib monotherapy group used for?

Neoadjuvant Olaparib monotherapy group is an investigational small molecule being studied for use in non-germline BRCA mutated ovarian cancer, breast neoplasms, castration-resistant prostate carcinoma, newly diagnosed breast cancer, and ovarian cancer. It is a PARP inhibitor currently in Phase 3 clinical development.

What does Neoadjuvant Olaparib monotherapy group target?

Neoadjuvant Olaparib monotherapy group targets PARP, a class of enzymes involved in DNA repair. By inhibiting PARP, the drug is designed to exploit DNA repair deficiencies in cancer cells. It is being evaluated in biomarker-selected patient populations.

Who makes Neoadjuvant Olaparib monotherapy group?

Neoadjuvant Olaparib monotherapy group is developed by AstraZeneca PLC, a biopharmaceutical company traded on the stock exchange under the ticker AZN. The drug is also known as olaparib and is administered as 300 mg tablets taken twice daily.

What phase is Neoadjuvant Olaparib monotherapy group in?

Neoadjuvant Olaparib monotherapy group is in Phase 3 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The drug is being studied in randomized, double-blind, controlled clinical trials with biomarker selection.

What clinical trials is Neoadjuvant Olaparib monotherapy group in?

Neoadjuvant Olaparib monotherapy group has been studied in four clinical trials. These include NCT00912743 in colorectal cancer, NCT01078662 in BRCA-mutated advanced tumors, NCT02734004 in combination with MEDI4736 for advanced solid tumors, and NCT03534453 as maintenance therapy in relapsed ovarian cancer.

Is Neoadjuvant Olaparib monotherapy group the same as olaparib?

Yes, Neoadjuvant Olaparib monotherapy group is the same as olaparib. It is also referred to as olaparib 300 mg tablets or olaparib 300 mg BID. The drug is a PARP inhibitor being developed by AstraZeneca PLC for multiple oncology indications.