The purpose of this study is to understand DMD functional losses or abilities and their association with independence and quality of life from the perspective of individuals with DMD and/or and their caregivers.

This is a qualitative interview study in which individuals with DMD and/or their caregivers will be asked to participate in a semi-structured, approximately 60- minute interview. Interviews will focus on functional abilities and independence. Caregivers and boys with DMD will be interviewed. This study includes no treatment nor intervention; however, some participants are being treated by a drug that is approved in the U.S. and the U.K. and under investigation in other geographies.

Inclusion Criteria:

Subsample A - Patients

Eligible participants for Subsample A must:

• Have been treated with Givinostat for at least 2 years
• Be at least 10 years of age with signed consent of a parent or legal guardian
• Be currently taking givinostat
• Willing and able to participate in a video and/or audio recorded interview

Subsample A - Caregivers

Eligible caregivers for Subsample A must:

• Be a parent or legal guardian of an individual with DMD that has been taking givinostat for at least two years
• Willing and able to participate in a video and/or audio recorded interview

Subsample B - Caregivers

Eligible caregivers for Subsample B must:

• Provide care to an individual with DMD who is unable to raise their hands above their head as confirmed by the caregiver
• Reside in the United States or Canada
• Able to read, speak, and understand English
• Willing and able to participate in a video and/or audio recorded interview Have access to a stable internet connection

Exclusion Criteria:

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Caregivers of individuals with Duchenne Muscular Dystrophy (DMD) and patients with DMD