Background
The objective of this study was to examine the potential value of a theory-based, interactive decision support tool in clinical practice for patients with rheumatoid arthritis (RA) who are candidates for biologics.
Methods
We conducted an 8-week, 2-arm, parallel, single-blind, pilot trial in which candidates for treatment escalation with a biologic were randomized to receive a link to a web-based tool or to usual care. Outcomes included change in objective knowledge, subjective knowledge, value clarification and satisfaction with risk communication as well as the proportion of subjects defined as making an informed choice to escalate care at two weeks.
Results
125 subjects were randomized. Significant between-group differences at two weeks favoring the intervention group were seen for changes in objective knowledge, subjective knowledge, and value clarification. No significant between-group differences were found in subjects' satisfaction with risk communication. Among those deciding to escalate care, a greater percentage met criteria for an informed choice at two weeks in the intervention group compared to the control group (32% versus 13%, p= 0.02). Improvements in subjective knowledge and value clarification persisted at eight weeks. There were no between-group differences in objective knowledge at eight weeks.
Conclusion
In this study, use of a decision support tool at the time of decision making resulted in improved objective and subjective knowledge, as well as value clarity, compared to usual care. Not all improvements were sustained, emphasizing the need to offer educational support should additional escalation of care be required over the course of the illness.