Phase 3 Study of ALXN1850 Versus Placebo in Adolescent and Adult Participants With HPP Who Have Not Previously Been Treated With Asfotase Alfa

NCT06079281 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 124

Last updated 2026-03-12

No results posted yet for this study

Summary

The primary objective of this study is to assess the efficacy of ALXN1850 versus placebo on functional outcomes in adolescent and adult participants with HPP who have not previously been treated with asfotase alfa.

Conditions

  • Hypophosphatasia

Interventions

DRUG

ALXN1850

ALXN1850 will be administered via subcutaneous (SC) injection.

DRUG

Placebo

Placebo will be administered via SC injection.

Sponsors & Collaborators

  • Alexion Pharmaceuticals, Inc.

    lead INDUSTRY

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
12 Years
Max Age
130 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-01-03
Primary Completion
2025-07-09
Completion
2028-03-29
FDA Drug
Yes

Countries

  • United States
  • Argentina
  • Australia
  • Brazil
  • Canada
  • China
  • France
  • Germany
  • Israel
  • Italy
  • Japan
  • Poland
  • South Korea
  • Spain
  • Taiwan
  • Turkey (Türkiye)
  • United Kingdom

Study Locations

More Related Trials

Entities

Drugs

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06079281 on ClinicalTrials.gov