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A new self-administered methotrexate autoinjector had 90.5% subject usability, according to recently published data. Christophe Hudry, MD, of the rheumatology department at Cochin Hospital in Paris, and colleagues conducted a study of 42 participants, which consisted of rheumatology nurses and patients with rheumatoid arthritis, who were divided into two groups according to hand disability. Each participant performed three injections with a water-filled device on a foam pad. The first injection — which the researchers defined as the first phase — was made after reading the instructions for use. The second phase comprised two injections made after explanations to the participant when in an optimum environment and then in a home environment. Researchers assessed auto-injector usability by questionnaire, with success defined as at least 75% positive response, and a score card of injection performance, with success defined as correct execution of at least 75% of steps.
Original Article: Self-administered methotrexate autoinjector confers high usabilityNEXT ARTICLE
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