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A. Sashegyi



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    MA 03 - Chemotherapy (ID 651)

    • Event: WCLC 2017
    • Type: Mini Oral
    • Track: Advanced NSCLC
    • Presentations: 1
    • +

      MA 03.06 - Effect of 2L Ramucirumab after Rapid Time to Progression on 1L Therapy: Subgroup Analysis of REVEL in Advanced NSCLC (ID 7947)

      11:35 - 11:40  |  Author(s): A. Sashegyi

      • Abstract
      • Presentation
      • Slides

      Background:
      In REVEL, ramucirumab+docetaxel in the second-line (2L) treatment of patients with advanced NSCLC led to improvements in overall survival (OS), progression-free survival (PFS), and objective response rate (ORR), independent of histology. This exploratory, post-hoc analysis focuses on patients who progressed rapidly on first-line (1L), and who traditionally have a poor prognosis in the 2L setting. In REVEL, treatment benefit was observed in patients with progressive disease as their best overall response to 1L and in patients who were on 1L for only a short time (Reck M, ASCO 2017, Abstr 9079). Here, we report outcomes from patients who participated in REVEL according to their time to tumor progression (TTP) on 1L (ClinicalTrials.gov, NCT01168973).

      Method:
      Patients with advanced NSCLC of squamous or nonsquamous histology with disease progression during or after 1L platinum-based chemotherapy were randomized (1:1) to receive docetaxel 75 mg/m[2] and either ramucirumab 10 mg/kg or placebo on day 1 of a 21-day cycle. OS was the primary endpoint. Secondary endpoints included PFS, ORR, safety, and patient-reported quality-of-life (QoL). Response was assessed according to RECIST v1.1. QoL was assessed with the Lung Cancer Symptom Scale. TTP on 1L, defined as the time from start of 1L until progressive disease, was assessed for the REVEL intent-to-treat population.

      Result:
      Of 1253 patients in REVEL, 11% had TTP ≤9 weeks, 17% had TTP ≤12 weeks, and 28% had TTP ≤18 weeks on 1L therapy. Baseline characteristics of each subgroup generally were balanced between treatment arms. Efficacy, safety, and QoL outcomes by TTP are shown in the table.

      Outcomes in Patients From the REVEL Study by Time to Tumor Progression on First-Line Therapy
      ≤9 Weeks ≤12 Weeks ≤18 Weeks
      INTENT-TO-TREAT POPULATION Ramucirumab+Docetaxel N = 71 Placebo+Docetaxel N = 62 Ramucirumab+Docetaxel N = 111 Placebo+Docetaxel N = 98 Ramucirumab+Docetaxel N = 182 Placebo+Docetaxel N = 172
      Median OS, months (95% Confidence Interval [CI]) 8.28 (5.19, 10.84) 4.83 (3.09, 6.90) 9.10 (6.70, 10.84) 5.78 (4.30, 7.49) 8.51 (6.97, 9.95) 5.95 (4.44, 6.97)
      Unstratified Hazard Ratio (HR) (95% CI) 0.69 (0.47, 1.01) 0.74 (0.54, 1.00) 0.80 (0.63, 1.01)
      12-month survival rate, % (95% CI) 47 (35, 58) 32 (20, 44) 34 (25, 43) 23 (15, 32) 30 (23, 37) 24 (18, 31)
      18-month survival rate, % (95% CI) 20 (11, 31) 12 (5, 24) 17 (10, 26) 13 (6, 22) 17 (11, 23) 13 (8, 20)
      Median PFS, months (95% CI) 3.01 (2.66, 4.07) 1.48 (1.41, 1.87) 3.61 (2.76, 4.21) 1.61 (1.45, 2.60) 3.22 (2.79, 4.14) 1.61 (1.48, 2.60)
      Unstratified HR (95% CI) 0.69 (0.48, 0.98) 0.73 (0.55, 0.97) 0.72 (0.58, 0.89)
      ORR (complete response [CR]+partial response [PR]), %, (95% CI) 18.3 (10.1,29.3) 3.2 (0.4, 11.2) 18.9 (12.1, 27.5) 9.2 (4.3, 16.7) 19.2 (13.8, 25.7) 10.5 (6.3, 16.0)
      Disease Control Rate (CR+PR+stable disease), % (95% CI) 50.7 (38.6, 62.8) 30.6 (19.6, 43.7) 49.5 (39.9, 59.2) 37.8 (28.2, 48.1) 50.5 (43.1, 58.0) 36.0 (28.9, 43.7)
      Average Symptom Burden Index, time to deterioration HR (95% CI) 0.60 (0.30, 1.22) 0.49 (0.27, 0.88) 0.74 (0.49, 1.12)
      Total Score Lung Cancer Symptom Scale, time to deterioration HR (95% CI) 0.89 (0.45, 1.78) 0.71 (0.41, 1.23) 0.90 (0.60, 1.36)
      SAFETY POPULATION Ramucirumab+Docetaxel N = 70 Placebo+Docetaxel N = 61 Ramucirumab+Docetaxel N = 109 Placebo+Docetaxel N = 97 Ramucirumab+Docetaxel N = 179 Placebo+Docetaxel N = 171
      Any Treatment-Emergent Adverse Event (TEAE), n (%) 67 (95.7) 58 (95.1) 105 (96.3) 92 (94.8) 173 (96.6) 159 (93.0)
      Grade ≥3 50 (71.4) 46 (75.4) 80 (73.4) 69 (71.1) 134 (74.9) 113 (66.1)
      TEAE leading to discontinuation 4 (5.7) 2 (3.3) 5 (4.6) 3 (3.1) 13 (7.3) 6 (3.5)
      TEAE leading to dose adjustment 24 (34.3) 19 (31.1) 39 (35.8) 28 (28.9) 70 (39.1) 47 (27.5)
      TEAE leading to death 5 (7.1) 4 (6.6) 7 (6.4) 6 (6.2) 9 (5.0) 8 (4.7)
      TESAE 25 (35.7) 30 (49.2) 46 (42.2) 46 (47.4) 80 (44.7) 71 (41.5)


      Conclusion:
      Efficacy, toxicity, and QoL outcomes among ramucirumab+docetaxel patients who have aggressive disease with rapid TTP on 1L therapy appear consistent with the intent-to-treat population. The benefit/risk profile for these rapid progressors suggests that such patients may derive meaningful benefit from ramucirumab+docetaxel in the 2L setting.

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