Objective: Medication management in home hospice is challenging for family caregivers (FCGs). We tested a patient-centered medication review and FCG support program delivered by hospice staff called "Shared Medication PLanning In (SiMPLIfy) Home Hospice." Methods: A pilot cluster-randomized trial at two U.S. home hospice agencies measured the primary outcome of reduction in Medication Regimen Complexity Index (MRCI) (range 0 [no medications]-no upper limit) and secondary outcome of Family Caregiver Medication Administration Hassle Scale (FCMAHS) (range 0 [no hassle-120 [greatest hassle]). Results: Twenty-two patient-FCG dyads enrolled. Mean baseline MRCI in the intervention group = 39 (95% CI: 30.9, 47.1) and control group = 25.5 (95% CI: 21.0-30.1). Half of intervention patients (3 of 6) had reduced MRCI compared with 26.7% (4 of 15) control patients (p = 0.07). MRCI was not significantly associated with caregiver burden. FCMAHS differed between spousal and nonspousal FCGs (p = 0.12). Conclusion: A clinician-FCG-patient communication program in home hospice is feasible and may reduce medication complexity. SiMPLIfy has the potential to reduce polypharmacy.