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Study identifier: NCT02237625 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Natural History Study of Patients With Hypophosphatasia (HPP)

Condition: Hypophosphatasia  ·  Sponsor: Duke University

PhaseN/A
Planned participants200
Who can joinAll sexes, N/A to no upper limit
Healthy volunteersNo

About this study

Hypophosphatasia (HPP) is a rare inherited metabolic disorder characterized by defective bone and teeth mineralization caused by mutations of the ALPL gene, which encodes for the tissue-nonspecific alkaline phosphatase (TNSALP) isozyme, resulting in decreased serum and bone alkaline phosphatase levels. To date, over 250 different mutations in the gene encoding TNSALP have been associated with HPP. Clinically, the loss of TNSALP function results in progressive skeletal impact as well as progressive impact on all other major organ systems. It clinically manifests as rickets in infants and children and osteomalacia at all ages. The severe form of the disease has been estimated to have a prevalence of about 1 in every 100,000 live births.

This description comes directly from the study's public registry record.

Talk to the study team

Janet G Blount, BA  ·  919-681-7962  ·  janet.blount@duke.edu

Always discuss trial participation with your own doctor first.

Locations (1)

Duke University Medical CenterDurham, North Carolina, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT02237625