Acceptance and Commitment Therapy is feasible for people with acquired brain injury: A process evaluation of the BrainACT treatment.

"The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article."

"Funding: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the ZonMw, (grant number project number 636310003)."

"Recruitment of participants for the BrainACT study took place between April 2019 and January 2022 at medical psychology and rehabilitation departments throughout the Netherlands. All participants who were randomised into the Acceptance and Commitment Therapy arm of the BrainACT trial were eligible to participate in this process evaluation. Ethics approval for the BrainACT study has been given by the medical research ethics committee of Maastricht University Medical Centre and Maastricht University (committee reference number NL65349.068.18). All participants gave informed consent. The study protocol is performed in accordance with the relevant guidelines and published elsewhere. The study is registered in the Dutch Trial Register (now Clinical Trial Registry Platform), NL691, NTR 7111. Registered on 26/03/2018. https://trialsearch.who.int/Trial2.aspx?TrialID = NTR7111"