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Henri Janicot



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    MA05 - Update on Clinical Trials and Treatments (ID 123)

    • Event: WCLC 2019
    • Type: Mini Oral Session
    • Track: Mesothelioma
    • Presentations: 1
    • Now Available
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      MA05.05 - Post-Discontinuation Treatments in IFCT-GFPC-0701 MAPS Trial: Real-World Effectiveness of 2nd-Line (2L) Treatments for Mesothelioma (Now Available) (ID 815)

      13:30 - 15:00  |  Author(s): Henri Janicot

      • Abstract
      • Presentation
      • Slides

      Background

      MAPS phase 3 trial assessing the addition of bevacizumab to pemetrexed-cisplatin doublet set a new standard of care in malignant pleural mesothelioma (MPM) patients, showing 18.8 months median overall survival (OS) with triplet combo. While both arms were well balanced in terms of 2L treatments, the size of the OS benefit from second-line treatments remains controversial.

      Method

      Long-term survival data were collected in the 342 MAPS patients alive at the end of the first-line (1L) treatments, in both arms. Median OS and 2-year survivals were calculated from the initiation of 2L. Multivariate analysis using Cox model included the stratification variables of the MAPS trial, along with the treatment arm (with or without bevacizumab).

      Result

      342/442(77.4%) patients received 2L treatment for disease progression after MAPS trial, of which 324 received chemotherapy (CT), 18 palliative radiotherapy (RT), while 100/442 (22.6%) remained untreated. 160/342 patients (46.8%) had a platinum-based doublet CT. 163 patients (47.7%) received a single-drug CT. 172/324 (53.1%) received a pemetrexed-containing regimen (alone or with platinum), 84 (25.9%) a gemcitabine-based CT, 16 (4.9%) vinorelbin alone, 48 (14.8%) gemcitabine alone, while in 12 (3.7%) single-agent bevacizumab was resumed. Median age was lower in patients with doublet CT (64.4 years, IQR 60.2-68.9) vs. single-drug CT patients (66.3 years, IQR 61.5-70.3), patients receiving RT (68.5 years, IQR 63.3-70.5) or untreated patients (67.8 years, IQR 63.4-71) (p=0.007). There were more PS=2 patients (10%) in the untreated group, compared with 0.6%, 1.8% and 5.6% in those receiving doublet, monotherapy or radiotherapy, respectively (p<0.001). A lower proportion of patients receiving 2L doublet CT had sarcomatoid/biphasic MPM (11.2%) compared with 21.5%, 38.9% and 25% in those with single-arm agent, RT or untreated, respectively (p=0.002). When compared with those treated with 2L single-agent, patients with 2L doublet had more frequently objective response (11.9 vs. 3.1%, p=0.005) and disease control (60.3 vs. 34.6%, p<0.0001). From the date of 2L therapy initiation, median OS was 3.2 months, 95%CI [1.7-5.0] for RT vs. 7.0 months 95%CI[5.6-7.8] for single-agent CT, or 12.2 months 95%CI [9.5-14.1] for doublet CT. HRs were adjusted for 1L treatment type (bevacizumab-containing or not), PS, smoking, and histology. Adj.HR (single-agent vs. doublet) was 1.21, 95% CI(0.96-1.53), p=0.11. Adj.HR (monotherapy vs. RT) was 0.39, 95%CI[0.24-0.65], p=0.0003. Adj.HR (combination CT vs. RT) was 0.32 95%CI[0.19-0.54], p<0.0001. 1-year OS was 11.8%, 95%CI [0.0-27.1], 48.7%, 95%CI [39.9-57.5], and 32.9%, 95%CI [25.1-40.6], in patients with RT alone, single agent CT or combination CT, while 2-year OS was 0%, 14.2%, and 20.0% respectively.

      Conclusion

      Second-line monotherapy only gave a 7-months median OS in MPM patients, comparing unfavorably to 11.9 and 15.9-months median OS with 2nd/3rd-line nivolumab or nivolumab+ipilimumab respectively, in the IFCT-1501 MAPS-2 randomized phase 2 trial. Conversely, 2L platinum-based chemo, in younger fit patients, still gave a 12.2-months median OS, not statistically different from monotherapy in the multivariate analysis, as a consequence of PS influence, although clinically meaningful. Based on these results, immunotherapy might be preferred for 2L/3L MPM patients, while monotherapy CT shows limited survival benefit.

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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
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      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): Henri Janicot

      • Abstract
      • Presentation
      • Slides

      Background

      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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