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  • Title: A prospective randomized comparison of radiation therapy plus lonidamine versus radiation therapy plus placebo as initial treatment of clinically localized but nonresectable nonsmall cell lung cancer.
    Author: Scarantino CW, McCunniff AJ, Evans G, Young CW, Paggiarino DA.
    Journal: Int J Radiat Oncol Biol Phys; 1994 Jul 30; 29(5):999-1004. PubMed ID: 8083102.
    Abstract:
    PURPOSE: By means of a multicenter, prospective randomized, placebo-controlled study, to assess the impact of adding the radiation-enhancing agent lonidamine to standard "curative-intent" radiation therapy upon overall survival, progression-free survival, and local progression-free survival of patients with clinically localized but nonresectable nonsmall cell lung cancer. METHODS AND MATERIALS: Lonidamine, or the lonidamine-placebo, was administered at a dose of 265 mg/m2 in three divided daily doses. Drug therapy began 2 days prior to the initiation of radiation therapy and continued until progression of disease mandated a change in therapy. The radiation therapy dose was 55-60 Gy, at a daily dose of 1.8 Gy and five treatments per week. Patients with clinical Stage II or III nonsmall cell lung cancer were stratified within the treatment center, and within two histologic strata: epidermoid vs. other nonsmall cell cancers. RESULTS: A total of 310 patients were enlisted on study, 152 on the placebo arm and 158 on the lonidamine arm. The median survival durations were 326 days and 392 days for the placebo and lonidamine-treated groups respectively, p = 0.41 for a comparison of the survival curves. Median progression-free survival and median local progression-free survival durations were 197 days and 341 days for placebo + radiation therapy vs. 230 days and 300 days for lonidamine + radiation therapy; p-values for the respective curves were 0.75 and 0.42. Although there were proportionately more lonidamine-treated patients than placebo-treated patients demonstrating continued local control in excess of 12 months, the numbers of patients still at risk after 24 months were too small for meaningful statistical analysis. CONCLUSION: This multicenter Phase III study failed to demonstrate a significant advantage in the lonidamine-treated population in overally patient survival, in progression-free survival, or in the median duration of local control.
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