Ultragenyx Medical Director

Rare Disease Specialist

Ultragenyx Pharmaceuticals Inc.

Little Rock, Arkansas

PI on 4 trials

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Specialists are identified from ClinicalTrials.gov principal investigators, PubMed publications, and the NPI registry, then ranked through an automated scoring pipeline.

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Rare diseases treated or studied

Based on trial PI assignments and publication topics.

Osteogenesis imperfecta type 3
Wilson disease
Osteogenesis imperfecta type 1
Congenital factor X deficiency
Osteogenesis imperfecta

Clinical trials (4)

NCT04531189
NCT05125809
NCT06636071
NCT03651505

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ClinicalTrials.gov PI search for Ultragenyx Medical Director

Other specialists for Osteogenesis imperfecta type 3

Peers ranked by clinical-trial PI role, publications, and verification quality.

Alix Seif, MD, M.D., MPH
Children's Hospital of Philadelphia
PA

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