Table 1: Papers included in the review.

Authors Study Design Methods of Data Collection and Analysis Objective ResponseResults in BRCAm cohorts Olaparib Dose No. of Patients(No. with BRCAm BC) Comments
Fong, 2009 Phase 1 non randomised open label dose finding trial using 3+3 design.Single armmonotherapy ORR, CR, PR measured using RECIST and CT or MRI scan. AEs measured using CTCAE 33% at 400mg BiD 10-600 BID 60 (3) Very small cohort. No written consent found. First in human trial. MTD found at 400 BiD
Tutt, 2010 Phase 2 non randomised proof of concept open labelmonotherapy ORR,CR, PR measured using RECIST and CT or MRI scan, AEs measured using CTCAE 41% at 400mg BiD22% at 100 BiD 400 or 100 BID 54 (54) Comparator arm on lower dose (100mg) = MTD is most effective.
Gelmon, 2011 Phase 2 non randomisedOpen labelFour cancers studied. monotherapy ORR,CR, PR measured using RECIST and CT or MRI scan, AEs measured using CTCAE 0% 400 BID 90 (10) Compares results between BRCAm or BRCAwt. Very small cohort. Heavily treated - 70% > 3 prior chemotherapy,TNBC = large heterogeneity among patients.3 patients data not confirmed.
Balmana, 2014 Phase 1 non randomised dose finding trial, 3+ 3 design.Open-labelCombination therapy (with cisplatin) ORR,CR, PR measured using RECIST and CT or MRI scan, AEs measured using CTCAE 71%SD (>1 year) occurred in 5 breast cancer patients 50-200 BID (continuous and intermittent dosing schedules) 53 (17) Patients BRCA status not centrally validatedSmall cohort. cisplatin 60 mg/m2 with intermittent olaparib 50 mg BID deemed tolerable but MTD not reached
Van der Noll, 2015 Open-label Monotherapy long-term safety study following a Phase 1 single arm combination study (olaparib with carboplatin and/or paclitaxel). AEs measured using CTCAE N/A 400BiD 21 (5) No written consent found. AEs reduced over time suggesting carryover from prior chemotherapy study. Mistake found in results text. Patients on therapy for up to 3.5 years.
Kaufman, 2015 Phase 2 non randomisedOpen-label single armmonotherapy ORR,CR, PR measured using RECIST and CT or MRI scan, AEs measured using CTCAE 12.9% 400 BID 317 (62) Very heavily pre-treated (average 4.6 prior therapies). No written consent found. 47% SD is a very good response rate given the heavy pre-treatment of these patients.
Robson, 2017 Phase 3 randomisedOpen labelmonotherapy ORR,CR, PR measured using RECIST and CT or MRI scan, AEs measured using CTCAE 59.9% 300 BID (tablet form) 302 (302) Not truly randomised as physicians choice was limited - and no placebo arm. Least pre-treated cohort with some patients only one prior treatment. Also measured QoL and PFS2. End point PFS was reached.