Salvage Treatment of Adrenocortical Carcinoma with Trofosfamide.

M Kroiss, T Deutschbein, W Schlötelburg, CL Ronchi, B Neu, HH Müller, M Quinkler, S Hahner, A Heidemeier, M Fassnacht, German Adrenocortical Carcinoma Study Group

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Adrenocortical carcinoma (ACC) has a dismal prognosis in advanced stages. Despite treatment with the adrenal toxicant mitotane and/or aggressive chemotherapy, tumor control is often short-lived. Here, we examine trofosfamide as a salvage treatment of ACC in an observational cohort study within the German ACC registry. Response defined as progression-free survival (PFS) at first tumor evaluation was assessed by RECIST 1.1 or clinically, and PFS and overall survival (OS) were estimated by the Kaplan-Meier method. Twenty-seven patients (11 males; median age 46.9 years) progressing after mitotane and three (median, range 0–5) other systemic treatments were evaluated for safety. Trofosfamide (150 mg/day) was administered as monotherapy (n = 13) or in combination with mitotane (n = 14). Overall tolerability was good with only mild adverse events. Six patients did not meet criteria for response assessment. Of the 21 patients, 8 patients had clinically progressive disease (3 deaths from ACC); among the 13 patients evaluable by RECIST 1.1, best response to treatment was stable disease (SD, n = 3) or progressive disease (n = 10). Hence, predefined response criteria were met in 3/21 patients (14 %). Median PFS was 84 days (95 % confidence interval 74–95) and median OS survival 198 days (95 % CI 89–307). One prolonged disease stabilization (best response by RECIST 1.1 −26 %) was observed for 479 days. In conclusion, trofosfamide is overall well tolerated but disease stabilization is rather rare. Accordingly, it may be used in selected cases of ACC not amenable to other treatment options such as clinical trials.
Original languageEnglish
Pages (from-to)211-218
JournalHormones and Cancer
Publication statusPublished - Jun 2016


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