A phase 1 study of vorinostat maintenance after autologous transplant in high-risk lymphoma.

Hofmeister CC, Williams N, Geyer S, Hade EM, Bowers MA, Earl CT, Vaughn J, Bingman A, Humphries K, Lozanski G, Baiocchi RA, Jaglowski SM, Blum K, Porcu P, Flynn J, Penza S, Benson DM, Andritsos LA, Devine SM
Leuk Lymphoma 56 1043-9 04/01/2015

Abstract

Only a minority of patients with high risk lymphoma will be cured with autologous transplant, so maintenance with vorinostat, an oral agent with activity in relapsed lymphoma, was studied starting day + 60 for 21 consecutive days followed by a week off for up to 11 cycles. Twenty-three patients with lymphoma were treated. Ten patients completed the full 11-cycle treatment plan per protocol, four patients were removed due to progressive disease and seven withdrew or were removed from the study due to toxicities. Despite Prevnar vaccine administration every 2 months for three injections, the mean antibody concentration never reached protective levels (> 0.35 μg/mL). Fatigue and functional well-being measured by Brief Fatigue Inventory and Functional Assessment of Cancer Therapy-General improved significantly from cycle 1 to cycle 7, but depression scores from the Center for Epidemiologic Studies Depression scale did not change. Given the toxicities observed, this broad-spectrum deacetylase inhibitor at this schedule is not optimal for prolonged maintenance therapy.

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