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Use of the Functioning Assessment Short Test (FAST) in defining functional recovery in bipolar I disorder. Post-hoc analyses of long-term studies of aripiprazole once monthly as maintenance treatment

Authors Madera J, Such P, Zhang P, Baker RA, Grande I

Received 22 March 2019

Accepted for publication 19 July 2019

Published 15 August 2019 Volume 2019:15 Pages 2325—2338


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Roger Pinder

Jessica Madera,1 Pedro Such,2 Peter Zhang,1 Ross A Baker,1 Iria Grande3

1Medical Affairs, Otsuka Pharmaceutical Development and Commercialization Inc, Princeton, NJ, USA; 2Medical Affairs, H. Lundbeck A/S, Valby, Denmark; 3Bipolar and Depression Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain

Purpose: There is growing agreement that definitions of “recovery” in bipolar-I disorder (BP-I) should include functional outcomes beyond sustained symptomatic remission. In this post-hoc analysis, we assessed functional recovery rates according to the validated Functioning Assessment Short Test (FAST) in participants with BP-I after 52 weeks of maintenance treatment with aripiprazole once monthly (AOM).
Patients and methods: Rates of functional recovery with AOM 400 were investigated in two 52-week studies. NCT01567527 was a placebo-controlled, double-blind, randomized-withdrawal study and NCT01710709 was an open-label study. Functional recovery, assessed at the end of the respective maintenance phases, was defined as a total FAST score of ≤11 for 8 consecutive weeks.
Results: Post-hoc analyses included 229 patients from the randomized-withdrawal study (AOM 400 n=116; placebo n=113). The open-label study included 402 patients (including 321 de novo patients and 81 rollover patients who had completed the randomized-withdrawal study). In the randomized-withdrawal study, functional recovery was achieved by 30.2% (n=35) of the AOM 400 group compared with 24.8% (n=28) in the placebo group. The difference was not statistically significant (p=0.39). In the open-label study, 36% (n=116) of de novo patients and 43% (n=35) of rollover patients had functionally recovered after 52 weeks of AOM 400 treatment.
Conclusion: These data highlight the utility of a sustained FAST total score of ≤11 as a definition of recovery and emphasize the possibility of achieving this ambitious treatment goal with effective long-term treatment.

Keywords: bipolar disorder, aripiprazole, long-acting injectable, maintenance, functioning, recovery

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