Background
The most common, persistent concern among breast cancer survivors is the fear that their disease will return, yet few interventions targeting fear of cancer recurrence (FCR) have been developed. This pilot study examined the feasibility, acceptability, and preliminary efficacy of a home-delivered cognitive bias modification (CBM) intervention to reduce FCR. The intervention, Attention and Interpretation Modification for Fear of Breast Cancer Recurrence (AIM-FBCR), targeted two types of cognitive biases (i.e., attention and interpretation biases).
Methods
Breast cancer survivors (n=110) were randomized to receive eight sessions of one of two versions of AIM-FBCR or a control condition program. Computer-based assessments of cognitive biases and a self-report measure of FCR were administered pre-intervention, post-intervention, and 3 months post-intervention.
Results
Improvements in health worries (p=.019) and interpretation biases (rates of threat endorsement, p<.001; and reaction times for threat rejection, p=.007) were found in those who received AIM-FBCR as compared to the control arm. While only 26% of participants who screened into the study agreed to participate, the trial otherwise appeared feasible and acceptable, with 83% of those who began the intervention completing at least 5 of 8 sessions, and 90% reporting satisfaction with the computer-based program used.
Conclusions
This pilot study suggests the promise of AIM-FBCR in reducing FCR in breast cancer survivors. Future research should attempt to replicate these findings in a larger-scale trial using a more sophisticated, user-friendly program and additional measures of improvement in more diverse samples. ClinicalTrials.gov Identifier: NCT01517945.