Cell phone support to improve medication adherence among solid organ transplant recipients.

For many adolescent and young adult solid organ transplant recipients, medication non-adherence is a mortal issue. This study investigated the feasibility, acceptability, and potential efficacy of a 12-week cell phone support intervention to improve immunosuppressant medication adherence. A small sample (N = 8) of non-adherent adolescent and young adult transplant recipients, aged 15-20.5 years, was enrolled. Cell phone support consisted of short calls each weekday including medication reminders, discussion of needs, problem-solving support, and promotion of clinic and community resources. Changes in adherence were measured by self-report and laboratory values, and intervention acceptability, adherence barriers, social support, depression, and substance use were assessed by self-report. Pre-post effect sizes showed medium-to-large improvements in adherence, lasting through a 12-week follow-up assessment. There were also small-to-medium changes in adherence barriers, social support, and depression. However, acceptability and feasibility were limited, due to a low rate of enrollment by eligible male participants. Cell phone support interventions may promote medication adherence among adolescents and young adults. Cell phone support warrants further investigation, including a randomized controlled trial to evaluate efficacy.