Table 6.
Preliminary clinical data of DDR targeting agents in platinum resistant or refractory ovarian cancer
| NCT | NCT02595892 | NCT04497116 | NCT01164995 | NCT02151292 | NCT03579316a | NCT04516447 | NCT02203513 | NCT02632448 |
|---|---|---|---|---|---|---|---|---|
| Drugs | Berzosertib + Gemcitabine vs Gemcitabine | Camonsertib | Adavosertib+ Carboplatin | Adavosertib + Gemcitabine vs Gemcitabine | Adavosertib vs Adavosertib + Olaparib | Azenosertib+chemotherapy | Prexasertib | LY2880070+Gemcitabine |
| No. of patients | 34 vs 36 | 20 | 23 | 61 vs 33 | 35 vs 35 | 56 | 49 | 27 |
| Confirmed % of BRCA mutant or HRD | 18% vs 14% | 85% | 9% BRCA1 mutation | 16% vs 12% | 48% BRCA mutation | Not reported | BRCA wildtype | Not reported |
| % of prior PARPi treatment | 32% vs 19% | 90% | Not reported | Not reported | 100% | 14% | 46% | Not reported |
| % of prior bevacizumab treatment | 29% vs 25%b | Not reported | 4% | Not reported | Not reported | 46% | 81% | Not reported |
| ORR (%) | 3% vs 11% | 1 CR, 3 PRs, 1 CA125 response | 43% (95% CI, 22% - 66%) | 23% vs 6% | 23% (90% CI, 12% – 38%) vs 29% (16% – 44%) |
Total 30.2%; ZnC3+paclitaxel: 62.5%; ZnC3+carboplatin: 45.5% ZnC3+PLDc: 12.5% |
30.7% | 7.4% |
| mPFS | 22.9 weeks (90% CI 17.9–72.0) vs 14.7 weeks (9.7–36.7), hazard ratio 0.57, 0.33–0.98; one-sided log-rank test p = 0.044 | Not reported | 5.3 months (95% CI, 2.3 to 9.0 months) | 4.6 months (95% CI 3.6–6.4) vs 3.0 months (1.8–3.8), hazard ratio 0.55 [95% CI 0.35–0.90]; log-rank p = 0·015 | 5.5 months (90% CI, 3.9–6.9) vs 6.8 months (4.3–8.3) | Not reported | 5.8 months (range 1.7-26.4 months). | Not reported |
| mOS | 59.4 weeks (90% CI 33.7–84.4) vs 43.0 weeks (34.4–67.9) hazard ratio 0.84, 0.53–1.32; one-sided log-rank test p = 0.26 | Not reported | 12.6 months (95% CI, 4.9 to 19.7), |
11.4 months (95% CI 8.2–16.5) vs 7.2 months (5.2–13.2); hazard ratio 0.56 [95% CI 0.35–0.91]; log-rank p = 0.017 |
Not reported | Not reported | Not reported | Not reported |
aA two-arm noncomparative trial
bPrevious antiangiogenic therapy
cPLD: Pegylated liposomal doxorubicin