Characteristics of OC patients (n = 156)

CharacteristicsBRCA1 (n = 48)BRCA2 (n = 15)WT (n = 93)
Mean age (age range)52.9 (36–70)60.5 (43–76)59.5 (28–83)
FIGO stage
IIIC21 (44%)9 (60%)46 (49%)
IVA1 (2%)1 (7%)3 (3%)
IVB26 (54%)5 (33%)44 (47%)
NACT regimen
MP (mitomycin 10 mg/m2 + cisplatin 100 mg/m2, every 28 days)26 (54%)2 (13%)-
TCbP (paclitaxel 175 mg/m2 + carboplatin AUC 6)22 (46%)13 (87%)93 (100%)
RECIST 1.1
Complete response3 (6%)1 (7%)0 (0)
Partial response33 (69%)12 (80%)62 (67%)
Stable disease11 (23%)1 (7%)24 (26%)
Progressive disease1 (2%)1 (7%)7 (8%)
CRS (omentum)
CRS110 (21%)1 (7%)28 (30%)
CRS223 (48%)2 (13%)47 (51%)
CRS3, near-complete response5 (10%)1 (7%)9 (10%)
CRS3, complete response7 (15%)8 (53%)0 (0)
No debulking surgery/no omentectomy3 (6%)3 (20%)9 (10%)

In the BRCA1/2-mutated subjects, four women (three BRCA2 carriers and one BRCA1 carrier) had an unresectable tumor after 3–4 cycles of NACT, one patient had a partial clinical response but was considered at high risk of post-operative complications due to comorbidities and continued on immunotherapy and olaparib, and one patient died during NACT due to pneumonia. In the WT group, all cases without debulking surgery were related to insufficient clinical response. AUC: area under the curve; CRS: chemotherapy response score; FIGO: International Federation of Gynecology and Obstetrics; MP: mitomycin and cisplatin; NACT: neoadjuvant chemotherapy; OC: ovarian cancer; RECIST: Response Evaluation Criteria In Solid Tumors; TCbP: carboplatin and paclitaxel; WT: wild-type