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Sandrine Hiret

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    P1.01 - Advanced NSCLC (Not CME Accredited Session) (ID 933)

    • Event: WCLC 2018
    • Type: Poster Viewing in the Exhibit Hall
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/24/2018, 16:45 - 18:00, Exhibit Hall
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      P1.01-66 - Randomized Phase II Evaluating EGFR-TKI Associated with Anti-Estrogen in Women with Non-Squamous Advanced Stage NSCLC: IFCT-1003 LADIE Trial. (ID 13740)

      16:45 - 18:00  |  Author(s): Sandrine Hiret

      • Abstract


      The incidence of lung cancer is increasing dramatically in women with recent findings as the preferential involvement of the EGFR pathway and the potential impact of hormonal factors in women. Preclinical data have shown that the combination of an EGFR-TKI with an anti-estrogen could overcome resistance to EGFR-TKI.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      IFCT-1003 LADIE Trial was a 2x2 arms parallel open-label randomized phase II trial. PS 0-2 post-menopausal women with advanced stage lung adenocarcinoma were treated with gefitinib (G 250 mg/day) vs. G + fulvestrant 500 mg / month with a supplementary dose at day 15 (G+F) in the EGFR mutated group (EGFR+) in 1st or 2nd line setting or with erlotinib (E 150 mg/day) vs. E + fulvestrant (E+F) in the EGFR wild-type group (EGFR WT) in 2nd or 3rd line setting until progression or unacceptable toxicity. Primary objective was progression-free survival (PFS) at 3 and 9 months for EGFR WT and EGFR+ patients, respectively.

      4c3880bb027f159e801041b1021e88e8 Result

      From 02/2012 to 03/2017, 204 pts (G 104, G+F 100) and 175 (E 87, E+F 88) were enrolled in the EGFR+ and EGFR WT cohorts respectively. The median number of fulvestrant injections was 10 in the G+F group and 3 in the E+F group. The tolerance was correct (grade 3/4: 24.2% in the G+F group vs 21.3% in the G group, 16.0% in the E+F group vs 13.8% in the E group) and no treatment-related death. In the EGFR+ cohort, the primary endpoint was reached as 54 pts in the G+F group were non-progressive at 9 months. Nevertheless, addition of F to G was not associated with significant better PFS (9.9 vs 10.1 months) or OS (22.1 vs 29.9 months). In the EGFR WT cohort, the primary endpoint was not reached as 29 patients were non-progressive at 3 months. Here also, addition of F to E was not associated with better outcome (PFS 1.8 vs 2.0 and OS 10.0 vs 7.3 months). No PFS difference was observed in the subgroup of patients with positive staining for REα.

      8eea62084ca7e541d918e823422bd82e Conclusion

      Addition of fulvestrant to EGFR-TKI is feasible and is associated with good PFS in the EGFR mutated group. Nevertheless, the lack of benefit associated with the combination of fulvestrant to EGFR-TKI does not support its future development in a phase 3 trial in women with NSCLC.


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    PL02 - Presidential Symposium - Top 5 Abstracts (ID 850)

    • Event: WCLC 2018
    • Type: Plenary Session
    • Track: Advanced NSCLC
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/25/2018, 08:15 - 09:45, Plenary Hall
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      PL02.01 - Overall Survival with Durvalumab Versus Placebo After Chemoradiotherapy in Stage III NSCLC: Updated Results from PACIFIC (ID 14701)

      08:15 - 08:25  |  Author(s): Sandrine Hiret

      • Abstract
      • Presentation
      • Slides


      In the global, Phase 3 PACIFIC study (Antonia 2017; NCT02125461), durvalumab significantly improved progression-free survival (PFS) versus placebo in Stage III, unresectable NSCLC patients without progression after chemoradiotherapy (CRT) (stratified HR, 0.52; 95% CI, 0.42–0.65; P<0.001). This was the first major advance in this disease setting for many years. Here we report the second primary endpoint overall survival (OS) for PACIFIC.

      Patients with WHO PS 0/1 (any PD-L1 tumor status) who received ≥2 cycles of platinum-based CRT were randomized (2:1) 1–42 days post-CRT to durvalumab 10 mg/kg IV Q2W or placebo up to 12 months, stratified by age, sex, and smoking history. Primary endpoints were PFS from randomization (blinded independent central review; RECIST v1.1) and OS (interim analysis reported). Secondary endpoints included time to death or distant metastasis (TTDM) and PFS2 (time to second progression) from randomization and safety. Time to first/second subsequent therapy or death (TFST/TSST) were supportive assessments for PFS/PFS2.

      Between May 2014 and April 2016, 713 patients were randomized of whom 709 received treatment (durvalumab, n=473; placebo, n=236). As of March 22, 2018 (data cutoff), median follow-up duration was 25.2 months (range, 0.2–43.1). After discontinuation, 41.0% and 54.0% in the durvalumab and placebo groups received subsequent anticancer therapy; overall, 8.0% and 22.4% received additional immunotherapy. Durvalumab significantly improved OS versus placebo (stratified HR 0.68, 99.73% CI, 0.469–0.997; P=0.00251), with the median not reached (NR; 95% CI, 34.7 months–NR) and 28.7 months (95% CI, 22.9–NR), respectively. Durvalumab improved OS in all pre-specified subgroups. Updated PFS remained similar (stratified HR 0.51, 95% CI, 0.41–0.63), with medians of 17.2 and 5.6 months with durvalumab and placebo, respectively. Durvalumab improved the updated TTDM (stratified HR 0.53, 95% CI, 0.41–0.68), as well as PFS2 (stratified HR 0.58, 95% CI, 0.46–0.73), TFST (stratified HR 0.58, 95% CI, 0.47–0.72) and TSST (stratified HR 0.63, 95% CI, 0.50–0.79). Within the durvalumab and placebo groups, 30.5% and 26.1% had grade 3/4 any-causality AEs, 15.4% and 9.8% discontinued due to AEs, and no new safety signals were identified.

      Durvalumab demonstrated statistically significant and clinically meaningful improvement in OS compared with placebo, supported by secondary endpoints such as PFS2. PACIFIC is the first study to show a survival advantage following CRT in this population, providing compelling evidence for the unprecedented benefit of durvalumab treatment as the standard of care.


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