%0 Journal Article %@ 1438-8871 %I JMIR Publications %V 19 %N 10 %P e336 %T Effectiveness of Two Web-Based Interventions for Chronic Cancer-Related Fatigue Compared to an Active Control Condition: Results of the “Fitter na kanker” Randomized Controlled Trial %A Bruggeman-Everts,Fieke Z %A Wolvers,Marije D J %A van de Schoot,Rens %A Vollenbroek-Hutten,Miriam M R %A Van der Lee,Marije L %+ Helen Dowling Instituut, Scientific Research Department, Professor Bronkhorstlaan 20, Bilthoven, 3723 MB, Netherlands, 31 30 252 40 20, bruggeman.everts@gmail.com %K fatigue %K cancer survivors %K Internet interventions %K mindfulness-based cognitive therapy %K physiotherapy %K accelerometry %K latent growth analysis %K implementation %K RCT %D 2017 %7 19.10.2017 %9 Original Paper %J J Med Internet Res %G English %X Background: Approximately one third of all patients who have been successfully treated for cancer suffer from chronic cancer-related fatigue (CCRF). Effective and easily accessible interventions are needed for these patients. Objective: The current paper reports on the results of a 3-armed randomized controlled trial investigating the clinical effectiveness of two different guided Web-based interventions for reducing CCRF compared to an active control condition. Methods: Severely fatigued cancer survivors were recruited via online and offline channels, and self-registered on an open-access website. After eligibility checks, 167 participants were randomized via an embedded automated randomization function into: (1) physiotherapist-guided Ambulant Activity Feedback (AAF) therapy encompassing the use of an accelerometer (n=62); (2) psychologist-guided Web-based mindfulness-based cognitive therapy (eMBCT; n=55); or (3) an unguided active control condition receiving psycho-educational emails (n=50). All interventions lasted nine weeks. Fatigue severity was self-assessed using the Checklist Individual Strength - Fatigue Severity subscale (primary outcome) six times from baseline (T0b) to six months (T2). Mental health was self-assessed three times using the Hospital Anxiety and Depression Scale and Positive and Negative Affect Schedule (secondary outcome). Treatment dropout was investigated. Results: Multiple group latent growth curve analysis, corrected for individual time between assessments, showed that fatigue severity decreased significantly more in the AAF and eMBCT groups compared to the psycho-educational group. The analyses were checked by a researcher who was blind to allocation. Clinically relevant changes in fatigue severity were observed in 66% (41/62) of patients in AAF, 49% (27/55) of patients in eMBCT, and 12% (6/50) of patients in psycho-education. Dropout was 18% (11/62) in AAF, mainly due to technical problems and poor usability of the accelerometer, and 38% (21/55) in eMBCT, mainly due to the perceived high intensity of the program. Conclusions: Both the AAF and eMBCT interventions are effective for managing fatigue severity compared to receiving psycho-educational emails. Trial Registration: Trialregister.nl NTR3483; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=3483 (Archived by WebCite at http://www.webcitation.org/6NWZqon3o) %M 29051138 %R 10.2196/jmir.7180 %U http://www.jmir.org/2017/10/e336/ %U https://doi.org/10.2196/jmir.7180 %U http://www.ncbi.nlm.nih.gov/pubmed/29051138