Adherence to caregiver-administered intravenous immunosuppressant medications in pediatric hematopoietic stem cell transplant.

Background: The purpose of this study was to describe taking, timing, and dosing adherence to home caregiver-administered intravenous (IV) immunosuppressants in a sample of pediatric hematopoietic stem cell transplant (HCT) recipients.

Procedures: Sixteen children who had undergone HCT, ages 3 months to 15 years, and their caregivers participated. All caregivers were biological mothers. Caregivers completed a demographic questionnaire as part of a larger study and brought in portable infusion pumps to download the pump data at the time of their child's post-HCT clinic visit. Pump data were then examined for dose taking, timing, and amount for 30 days following discharge.

Results: Despite the importance of the precise timing of IV immunosuppressants, adherence taking, dosing, and timing varied widely in this sample. The mean percentage of doses administered was 98.72%, and 81.3% of children received all doses of immunosuppressant. However, only 62% of doses were given on time and the mean difference between the prescribed and actual administration time was 67.03 minutes.

Conclusions: Although taking adherence was high, the timing and dosing adherence to IV immunosuppressants in the home was poor. Additional support to promote adherence should be provided including assisting caregivers to identify and use adherence strategies specific to their child's IV immunosuppressant regimen in the home.