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Understanding the Spectrum of ENPP1 Deficiency and Acute ABCC6 Deficiency

Understanding the Spectrum of ENPP1 Deficiency and Acute ABCC6 Deficiency Through the Eyes of Patients and Parents; Burden of Illness Perspectives From Patients and Parents Who Speak English, French or German

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04372446
Enrollment
38
Registered
2020-05-04
Start date
2020-05-06
Completion date
2020-09-30
Last updated
2021-04-01

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

Conditions

Autosomal Recessive Hypophosphatemic Rickets Type 2, Generalized Arterial Calcification in Infancy

Keywords

ENPP1 deficiency and ABCC6 deficiency

Brief summary

To date, the investigators lack characterization of, the burden of, and the systemic progression of disease in ENPP1 deficiency and ABCC6 deficiency from a patient and/or parent perspective. This study aims to document this characterization, progression as well as the burden of disease. Link to the study registration- https://www.engagehealth.com/survey/TakeSurvey.aspx?SurveyID=8252n62

Detailed description

This will be a comprehensive, cross-sectional study conducted in approximately 60 individuals (or representative parents of patients) affected by ENPP1 deficiency and the acute form of ABCC6 deficiency. All study participants will complete the RSVP, PRO tools and upload a proof of disease form, followed by an interview conducted by a trained interviewer. It is estimated that each respondent will need up to 60 minutes for the entire process; 20 minutes to complete the RSVP, PRO tools and to upload proof of diagnosis of ENPP1 deficiency or the acute form of ABBC6 deficiency, and approximately 40 minutes to complete the interview and address any follow-up questions if needed.

Interventions

None listed

Sponsors

GACI Global
CollaboratorUNKNOWN
Engage Health Inc.
CollaboratorINDUSTRY
Inozyme Pharma
Lead SponsorINDUSTRY

Study design

Observational model
OTHER
Time perspective
OTHER

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

1. Participant must be a person with ENPP1 deficiency or the acute infantile form of ABCC6 deficiency who is 18 years or older 2. The parent/caregiver of a patient who has been diagnosed with ENPP1 deficiency or the acute infantile form of ABCC6 deficiency. Please note, parents/caregivers of patients with ENPP1 deficiency who have passed away may participate 3. Confirmed diagnosis of ENPP1 deficiency or ABCC6 deficiency with written proof of disease provided 4. Ability to participate in the RSVP and interview in German, French or English, irrespective of country of residence. 5. Able to grant informed consent 6. Willing to participate in a 40-to-60-minute telephone interview, including follow up questions (if necessary)

Exclusion criteria

* Inability to meet any of the inclusion criteria

Design outcomes

Primary

MeasureTime frameDescription
To improve the understanding of the characterization and burden of disease in ENPP1 deficient, and acute ABCC6 deficient, patients who are still growing and those who are done growingData will be collected during a 45 minute interview. This will be a patient or parent report of events that occurred from birth to the patient's current age which will differ for all respondents.The burden of disease through the eyes/voice of the patient and or caregiver will be collected and analyze for improved understanding
To collect information regarding disease burden, in the patient's / families own termsData will be collected during a 45 minute interview. This will be a patient or parent report of events that occurred from birth to the patient's current age which will differ for all respondents.Data will be collected in terms used by the patient and or caregiver
To build a foundation of evidence to contribute to the dossier, used for many purposes, including reimbursement and regulatory bodies.Data will be collected during a 45 minute interview. This will be a patient or parent report of events that occurred from birth to the patient's current age which will differ for all respondents.Data will be collected and analyzed to be able to draw meaningful conclusions regarding burden of disease in the voice of patients and caregivers

Countries

United States

Outcome results

None listed

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