LAUSR

Abstract Background The main challenges in patients (pts) > = 70y are to cope with the treatment benefit/risk ratio and tumor related symptoms; no standard systemic treatment has been validated. With GERICO-GORTEC groups, we developed a large prospective clinical program named ELAN to improve the management of elderly HNSCC using an adapted geriatric evaluation feasible in daily practice and to set new standards of care for these pts. We report the results of ELAN FIT and UNFIT trials dedicated to elderly R/M HNSCC pts. Table: 1110O . ELAN-FIT trial ELAN-UNFIT trial N = 82 Carbo-5FU-cetux (n = 78) CX arm (n = 41) MTX arm (n = 41) Pts PS ECOG 0-1 (n = 47) (2 arms together) Pts PS ECOG 2 (n = 35) (2 arms together) Adverse events > =grade 4 24% 27% 22% 13% 40% Objective response rate At W12: 38% (central review) 12% 15% 13% 14% OS median (months) 14.7 (95%CI=11.0-18.2) 4.6 (95%CI=2.4-7.3) 4.6 (95%CI=2.3-7.7) 7.3 (95%CI=4.6-9.6) 2.1 (95%CI=1.5-3.2) 1-year OS rate 58% (95%CI=46%-68%) 22.5% (95% CI=12.3%-37.5%) 14.6% (95% CI=6.9%-28.4%) 27.7% (95% CI=16.9%-41.8%) 5.9% (95% CI=1.6%-19.1%) PFS median (months) 7.1 (95%CI=5.5-8.2) 2.4 (95%CI=1.5-3.8) 2.8 (95%CI=1.6-4.2) 3.8 (95%CI=2.6-5.5) 1.5 (95%CI=1.2-2.3) 1-year PFS rate 24.5% (95%CI=15.5%-34.6%) 7.5% (95% CI=2.6%-19.9%) 7.3% (95% CI=2.5%-19.4%) 12.8% (95% CI=6.0%-25.2%) 0% Methods To be included in one of the 2 trials, 1st line R/M SCCHN pts > = 70y must first be enrolled in ELAN-ONCOVAL study where they were classified as fit or unfit, using the ELAN geriatric evaluation (EGE). Comprehensive Geriatric Assessment was optional. Fit pts were proposed to be enrolled in the 2-stage phase II ELAN-FIT trial, which evaluated the cetuximab-carboplatin-5FU (EXTREME) combination in terms of efficacy (objective response at 12 weeks) and safety assessed by lack of grade > =4 toxicity and lack of loss of independence. Unfit pts were proposed to be enrolled in the randomized phase III ELAN-UNFIT trial, that compared 2 monotherapies, cetuximab (Cx) 500 mg/m² every 2 weeks versus weekly methotrexate (MTX) 40 mg/m² in terms of failure free survival (failures are progression, treatment stop, loss > = 2 points in Activities in Daily Living scale or death). Results 160 pts were enrolled in the trials. The UNFIT trial was stopped after futility analysis. Main results are shown in the table. Conclusions Fit elderly pts as selected using EGE, benefited from carboplatin based EXTREME regimen, with promising overall survival (OS), which compares favourably with that of younger pts. For unfit elderly pts, there was no efficacy difference of Cx and MTX. PS ECOG 2 pts did not benefit from systemic treatment. New therapeutic options should be explored for ECOG 0-1 unfit elderly pts. Clinical trial identification ELAN-UNFIT: NCT01884623 ELAN-FIT: NCT01864772. Legal entity responsible for the study Gustave Roussy and GORTEC. Funding INCA PAIR, Merck, Sandoz, GEMLUC-GEFLUC. Disclosure J. Guigay: Advisory / Consultancy: AstraZeneca; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: BMS; Advisory / Consultancy: Innate Pharma; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Merck. C. Even: Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: BMS; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Merck; Advisory / Consultancy, Travel / Accommodation / Expenses: MSD; Advisory / Consultancy: Innate Pharma. L. Geoffrois: Honoraria (self), Travel / Accommodation / Expenses: BMS; Honoraria (self), Travel / Accommodation / Expenses: MSD; Honoraria (self): Ipsen; Honoraria (self): Novartis; Travel / Accommodation / Expenses: Merck Serono. C. Sire: Travel / Accommodation / Expenses: Merck. J. Fayette: Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: BMS; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: MSD; Honoraria (self), Advisory / Consultancy, Research grant / Funding (self), Travel / Accommodation / Expenses: AstraZeneca; Honoraria (self), Advisory / Consultancy: Merck; Honoraria (self), Advisory / Consultancy: Innate; Honoraria (self), Advisory / Consultancy: Biogen. F. Peyrade: Advisory / Consultancy: MSD; Advisory / Consultancy: Merck. P. Debourdeau: Non-remunerated activity/ies: Pfizer; Honoraria (self): Leo Pharma; Honoraria (self): Bayer. Y. Pointreau: Honoraria (self), Advisory / Consultancy: BMS; Honoraria (self), Advisory / Consultancy: Merck; Honoraria (self), Advisory / Consultancy: MSD. All other authors have declared no conflicts of interest.