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OA15 - Targeted Agents and Immunotherapy for Small Cell Lung Cancer (ID 152)
- Event: WCLC 2019
- Type: Oral Session
- Track: Small Cell Lung Cancer/NET
- Presentations: 1
- Now Available
- Moderators:Raffaele Califano, Charles M Rudin
- Coordinates: 9/10/2019, 14:30 - 16:00, Hilton Head (1978)
OA15.02 - Carboplatin-Etoposide Versus Topotecan as Second-Line Treatment for Sensitive Relapsed Small-Cell Lung Cancer: Phase 3 Trial (Now Available) (ID 546)
14:30 - 16:00 | Author(s): Margaux Geier
Topotecan is currently the only drug approved in Europe in second line setting for small-cell lung cancer (SCLC). This study investigates whether the doublet carboplatin-Etoposide was superior to topotecan monotherapy as second-line treatment in patients with sensitive relapsed SCLC.Method
this open-label, multicenter, phase 3 trial randomized patients with SCLC that responded to first-line platin etoposide doublet treatment but showed evidence of disease relapse or progression at least 90 days after completion of the first-line treatment. Enrolled patients were randomly assigned (1:1) to receive combination chemotherapy (Six cycles of 3-weeks Carboplatin, AUC 5, day 1 and Etoposide 100 mg/Sqm/d 1-3, intra-venous) or oral Topotecan (2.3 mg/Sqm/d 1-5, every 3 weeks). Primary endpoint was progression free survival (PFS). Secondary endpoints were overall survival (OS), objective response rate (ORR), quality of life and tolerance in the intention-to-treat population, (clinical trialgouv: NCT02738346)Result
178 patients were screened and 164 randomized in 36 centers, with 82 assigned to each treatment group (age: 64.5 ± 7.2 years, men: 72.8%, PS 0/1/>1: 34.7%/56.3%/ 9%. Median PFS was significantly longer in combination chemotherapy group (4.7 months, 95% CI: 3.9-5.5) compare to topotecan group (2.7 months, 95% CI: 2.3-3.2), HR: 0.6, 95% CI 0.4-0.8, p < 0.002. The ORR were significantly more important in the combination chemotherapy than in topotecan arm (ORR 49 % vs 25 %, p < 0,002), but without difference in term of median OS, 7.5 months (95% CI: 5.4-8.7) in combination chemotherapy group versus 7.4 months (95% CI.6.0-9.3) in topotecan arm. Grade 3/4 neutropenia were significantly more common in the topotecan group than in the combination chemotherapy group (35.8% vs 19.7 %, p < 0.001. There is a non-significant trend for more febrile neutropenia in topotecan arm compare to combination arm (13.6 % 6.2 %, p = 0.19, and no difference for grade 3/4 thrombopenia, 35.8 % vs 30.9 %, and anemia, 24.6 % vs 21 %, for topotecan and combination arms, respectively. Two treatment-related deaths occurred in the topotecan arm (febrile neutropenia with sepsis), none in the combination arm. Results of quality of life outcomes will be presented at the meeting.Conclusion
platin - etoposide re-challenge can be considered as a standard second-line chemotherapy for sensitive relapsed SCLC.
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