Abstract 078: Implications of Patient-Reported Treatment Satisfaction for Discontinuation of Rivaroxaban versus Warfarin in ROCKET-AF

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Background: Patient-reported outcomes and satisfaction are important in both trials and clinical practice and may be associated with treatment adherence.

Methods: ROCKET-AF was a randomized, double-blind trial of rivaroxaban versus warfarin for prevention of thromboembolism in patients with atrial fibrillation. In a substudy, we compared treatment satisfaction scores: Anti-Clot Treatment Scale (ACTS) and Treatment Satisfaction Questionnaire for Medication version II (TSQM II). Patient-driven discontinuation included stopping study drugs due to withdrawal of consent, non-compliance, or loss to follow-up. Rates of discontinuation were calculated for participants above and below the median scores for each scale.

Results: Of 14,264 patients in ROCKET AF, 1,181 (8.3%; median age 75 years; 34% women) patients completed both the ACTS and TSQM II questionnaires 4 weeks after starting the study drug. Over a median follow-up of 1.6 years, 450 premature study drug discontinuations occurred, 116 (26%) patient-driven. Patients less satisfied with treatment by the ACTS Benefits and Burdens and TSQM II scales had higher rates of study drug discontinuation (Table).

Conclusions: Patient-reported satisfaction was lower in patients with study drug discontinuation, suggesting that collecting patient-reported outcomes early in clinical trials may guide interventions that improve adherence and clinical outcomes.

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