CClinicalTrials.gg
Status unknownNCT02556359IMMUNEREPUpdated Apr 18, 2016

Consequences of DNA Repair and Telomere Defects on the Function of the Immune System: Application to CVID and Immune Deficiencies With Dysmorphic Syndromes

An observational study in Immune Deficiency and Early BMF in Childhood, sponsored by Assistance Publique - Hôpitaux de Paris. Status unknown at 1 site in France. Per ClinicalTrials.gov, last updated 2016-04-18.

Sponsored by Assistance Publique - Hôpitaux de Paris · Observational

The sponsor has not verified this record recently (last verified Apr 2016), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
100
Sex
All
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Study summary

The molecular mechanisms participating in the various aspects of the DNA Damage Response (DDR) are absolutely essential to maintain the genome dynamics essential to all living organisms. The most commonly studied consequence of faulty DDR is genome instability participating in cancer onset. In the present proposal, we wish to explore another aspect of DDR, not relevant to cancer, which is its absolute requirement at several key steps of the development, maturation, and function of the immune system.

The most "spectacular" consequences of faulty DNA repair processes with respect to the immuno-hematopoietic tissue are the complete block of B and T lymphocytes maturation owing to defective DNA joining phase during V(D)J recombination resulting in patients with Severe Combined Immune Deficiency (SCID).

The objectives of this study are to increase our knowledge on the role of the various DNA repair processes in the development, the maintenance, and the function of the immune system and thus, to better understand why and how dysfunctions of these DNA repair processes result in human severe conditions such as CVID, LOCID or other manifestations of immune disorders such as autoimmunity.

The explorations of DNA repair mechanisms in the patients will allow us to establish the genetic diagnosis in some patients with until now undefined molecular diagnosis. This is of immediate importance for the patients and their families, as it not only contributes to a better understanding of the patients' condition, but also allows providing genetic counseling for the families.

02

Conditions studied

  • Immune Deficiency and Early BMF in Childhood
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In context

Immunologic Deficiency Syndromes

698 studies on the registry are indexed under Immunologic Deficiency Syndromes; 67 are open to participants now.

This study's planned enrollment of 100 is below the median of 150 across 179 observational studies indexed under Immunologic Deficiency Syndromes.

Browse Immunologic Deficiency Syndromes studies →

Lead sponsor

Assistance Publique - Hôpitaux de Paris is the lead sponsor of 3,505 studies on the registry; 1,006 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Any patient presenting clinical immune deficiency and at least one associated feature hinting at a possible DNA repair defect, such as microcephaly, growth retardation starting in utero, distinctive facial appearance ("bird-like face"), developmental delay, cerebellar degeneration, UV light sensitivity, premature aging, dystrophic nails, dental abnormalities, hair anomalies, pancytopenia and/or bone marrow failure

Inclusion criteria

  • Immune Deficiency and early BMF in childhood
  • Common Variable Immunodeficiency (CVID)
  • Genetic patients

Exclusion criteria

Exclusion Criteria:

  • Refusal to consent.
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Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
100 participants (estimated)
Patient registry
No
Biospecimen retention
Samples with dna
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What researchers measure

Primary outcomes

  1. DNA abnormailities

    Time frame: 1 day

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Study locations

1 of 1 sites recruiting
  • Saint Louis hospital
    Paris, 75010, France
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 18, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02556359
Lead sponsor
Assistance Publique - Hôpitaux de Paris
Responsible party
Sponsor
First posted
Sep 22, 2015
Start date
Jul 2015
Primary completion
Jul 2019 (estimated)
Completion
Sep 2019 (estimated)
Last update
Apr 18, 2016

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Apr 2016. You cannot join it, but the record below documents what was studied.

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