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A Non-Interventional Study of Clinical Characteristics and Mortality of US Patients With Fibrodysplasia Ossificans Progressiva (FOP)

Clinical Characteristics and Mortality in Patients With Fibrodysplasia Ossificans Progressiva (FOP): A Non-Interventional US National Retrospective Cohort

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06064656
Enrollment
131
Registered
2023-10-03
Start date
2023-06-29
Completion date
2023-09-29
Last updated
2025-07-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fibrodysplasia Ossificans Progressiva (FOP)

Keywords

Genetic disease, Heterotopic ossification (HO), Skeletal dysplasia, Activin A receptor, type I (ACVR1)

Brief summary

Primary Objective(s): * To describe the demographic characteristics of people living with FOP and a matched cohort of non-FOP people living in the United States (U.S.) * To describe the prevalence of clinical characteristics of interest and the use of key medications in people living with FOP and a matched cohort of non-FOP people living in the U.S. * To compare the prevalence of key clinical characteristics and medication use in people living with FOP to a matched cohort of non-FOP people living in the U.S. * To estimate the crude mortality rate among people living with FOP

Interventions

OTHERNon-Interventional

No study treatment will be administered in this study.

Sponsors

Regeneron Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

FOP Cohort(s): 1. Living with FOP in the United States who have been identified from the IFOPA membership database 2. Confirmed FOP diagnosis through IFOPA membership database will be tokenized and linked with HealthVerity's medical claims data, pharmacy claims data, laboratory data and obituary data, as defined in the protocol Comparator Cohort: 1. People without FOP living in the U.S. randomly sampled from HealthVerity's closed medical claims data and matched to the FOP population 2. Index date are defined as each person's cohort entry date. People may exit and re-enter the cohort, with the period during which they were not in the cohort excluded from the analysis 3. The comparator cohort will be matched to the cohort of people with FOP on the following variables: age, sex, insurance type and first index date

Exclusion criteria

1\. Failure to meet inclusion criteria

Design outcomes

Primary

MeasureTime frameDescription
Demographic characteristicsUp to 5 years
Prevalence of cardiovascular diseaseUp to 5 years
Prevalence of metabolic diseaseUp to 5 years
Prevalence of hematology diseaseUp to 5 years
Prevalence of infectionUp to 5 years
Prevalence of respiratory diseaseUp to 5 years
Prevalence of reproductive diseaseUp to 5 years
Prevalence of neurologic disordersUp to 5 years
Prevalence of skeletal disordersUp to 5 years
Prevalence of gastrointestinal diseaseUp to 5 years
Prevalence of hearing lossUp to 5 years
Prevalence of dermatologic disordersUp to 5 years
Prevalence of neoplasmsUp to 5 years
Average number of dispensations per FOP patient per yearUp to 5 years
Cumulative number of dispensations per FOP patientUp to 5 years
Incidence of all-cause deathUp to 5 yearsFOP Sub-Cohorts 1 and 2 Only

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026