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National Exhaustive Cohort of Hereditary Stomatocytoses and Other Channelopathies Affecting the Red Blood Cell

National Exhaustive Cohort of Hereditary Stomatocytoses and Other Channelopathies Affecting the Red Blood Cell

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04778657
Acronym
COHSTO
Enrollment
150
Registered
2021-03-03
Start date
2021-05-06
Completion date
2041-03-01
Last updated
2021-11-03

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

Conditions

Stomatocytosis

Keywords

rare genetic disease

Brief summary

Hereditary stomatocytosis is a heterogeneous group of rare constitutional diseases of dominant transmission in the vast majority of cases. The data concerning their clinical and biological presentation, and their evolution are few, and come from about thirty clinical cases. The constitution of an exhaustive French cohort of hereditary stomatocytosis will improve the establishment of the diagnosis and the management of patients

Detailed description

The patient is prospectively included. The referring hematologist will inform the patient about participation in the cohort, give him the information note and obtain his non-objection agreement to the use of his data for research purposes. The data will be collected from the medical file of each patient as part of his usual annual follow-up.

Interventions

None listed

Sponsors

Assistance Publique - Hôpitaux de Paris
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
OTHER

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Any patient with a diagnosis of stomatocytosis without age limit * Patient affiliated or beneficiary of french Social Security * No objection from the patient or legal representative

Exclusion criteria

* Diagnosis of stomatocytosis excluded by ektacytometry and / or genetics * Patient under guardianship, with curators or legal protection

Design outcomes

Primary

MeasureTime frameDescription
Obtain a description of the clinical and laboratory data of patients at the time of diagnosis of stomatocytosisBaselineDescriptive analysis of clinical and biological data for the diagnosis of stomatocytosis

Secondary

MeasureTime frameDescription
Determine the proportion of recurrent genetic mutations and private mutations within our cohortBaselineNumber of recurrent genetic mutations and private mutations within our cohort
Establish phenotypes-genotypes relationshipsthrough study completion, an average of 15yearsSpecify the phenotypic presentation of each mutation and isolate any correlations genotype-phenotype
Describe the appearance of complicationsthrough study completion, an average of 15yearsRate of occurrence of complications over time
Describe possible new phenotypic presentations of hereditary stomatocytosisthrough study completion, an average of 15yearsDescription of the phenotypic presentations of hereditary stomatocytosis

Countries

France

Contacts

Primary ContactCorinne GUITTON, MD,PhD
corinne.guitton@aphp.fr01 45 21 32 47

Outcome results

None listed

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