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  ORAL 29 - MASCC-IASLC Joint Session: Palliative and Supportive Care (ID 136)

  • Event: WCLC 2015
  • Type: Oral Session
  • Track: Palliative and Supportive Care
  • Presentations: 1
  • Moderators:A. Molasiotis, P. Van Houtte
  • Coordinates: 9/08/2015, 16:45 - 18:15, 708+710+712

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    ORAL29.03 - Efficacy of the Antiemetic Combination Agent, NEPA, in Patients with Lung Cancer Receiving Platinum Chemotherapy (ID 1275)

    16:45 - 18:15  |  Author(s): M. Palmas
    • Abstract
    • Presentation
    • Slides

    Background:
    Lung cancer is the most common cancer worldwide with first-line chemotherapy treatments consisting predominantly of emetogenic platinum agents. Chemotherapy-induced nausea and vomiting (CINV) can be prevented in most patients with appropriate combination antiemetic regimens. The antiemetic standard-of-care for patients receiving cisplatin consists of a combination of a NK~1~ receptor antagonist (NK~1~RA), a 5-HT~3~ RA, and dexamethasone (DEX). Adherence to antiemetic guidelines is unacceptably low with patients frequently not receiving recommended antiemetic combinations. NEPA has been developed as the first oral antiemetic combination; it delivers guideline-consistent prophylaxis with its combination of a highly selective NK~1~ RA (netupitant [NETU] 300 mg) and the pharmacologically/clinically distinct 5-HT~3~ RA, palonosetron (PALO 0.50 mg). NEPA has demonstrated superior prevention of CINV compared with oral PALO. The intent of this retrospective analysis was to evaluate the efficacy of NEPA in a subset of lung cancer patients from two of the pivotal trials.
    
    Methods:
    Patients in two randomized, double-blind trials received a single dose of NEPA on Day 1 prior to cisplatin- or carboplatin-based chemotherapy. Three dose groups (NETU 100/200/300 mg + PALO 0.50 mg) showing similar efficacy were pooled in Study 1, while all patients in Study 2 received NETU 300mg/PALO 0.50 mg. All patients also received oral DEX on Day 1 (carboplatin) or Days 1-4 (cisplatin). Study 1 was single cycle, while Study 2 included evaluation over multiple chemotherapy cycles. The focus of this analysis was on the efficacy of NEPA only, as a PALO comparator group was included in only one of these studies. Endpoints were complete response (CR: no emesis, no rescue) and no significant nausea (max <25 mm on 100 mm visual analog scale) during the acute (0-24h), delayed (25-120h), and overall (0-120h) phases.
    
    Results:
    231 patients (78% males, 22% females) with lung cancer received NEPA; 152 patients received cisplatin and 79 received carboplatin as initial chemotherapy. CR rates in Cycle 1 exceeded 90% in Study 1 and 80% in Study 2 (Table). As expected, overall nausea rates were somewhat lower than CR rates (87% Study 1, 80% Study 2). Overall CR rates were maintained over subsequent cycles in Study 2 (87%, 95% and 94% in Cycles 2-4, respectively). Figure 1
    
    
    
    Conclusion:
    As a combination antiemetic agent targeting two critical pathways associated with emesis, NEPA offers a convenient and highly effective option for prevention of CINV in lung cancer patients receiving platinum-based emetogenic chemotherapy.
    
    

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