About this trial
The effect of monoallelic variants in the ALPL gene on the natural course of hypophosphatasia (HPP) in children and adults in Russia (ATLANTIS)
Eligibility criteria
Qualifiers
Age ≥4 to <18 years, or ≥18 years at the time of enrollment;
Signed ICF for patients ≥18 years, or legal representatives (parents) of patients aged ≥4 to <18 years;
Written informed assent (for patients aged ≥14 to <18 years only);
No history of HPP treatment with enzyme-replacement therapy;
Disqualifiers
Confirmed conditions presenting with clinical features overlapping with HPP, including but not limited to: cerebral palsy, Duchenne muscular dystrophy, limb-girdle muscular dystrophy (Erb-Roth dystrophy), acquired secondary myopathies of various etiologies;
Сurrent participation in any clinical study (patients participating in other non interventional studies may be included);
Homozygous or compound heterozygous mutation in the ALPL gene
In the opinion of the investigator, the patient is not able to return for follow-up visits or obtain required follow-up studies.
Trial design
Treatments tested in this trial
- Not listed