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Economic evaluation of a randomized controlled trial of pharmacist‐supervized patient self‐testing of warfarin therapy

The increase in numbers of patients requiring oral anti‐coagulation testing in outpatient clinics has focused attention on alternative flexible systems of anti‐coagulation management. One option is pharmacist led patient self‐testing (PST) of international normalised ratio (INR) levels. PST has demonstrated improvements in anti‐coagulation control, but its cost‐effectiveness is inconclusive. This study reports the first cost‐effectiveness evaluation of a randomized controlled trial of an automated direct‐to‐patient expert system, enabling remote and effective management of patients on oral anti‐coagulation therapy.