- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02244450
Generalized Neonatal Screening of Severe Combined Immunodeficiencies (DEPISTREC)
Evaluation of the Clinical Utility and Cost Effectiveness Ratio of Generalized Neonatal Screening for Severe Combined Immunodeficiencies (SCID) by Quantification of TRECs on Guthrie Cards
Severe combined Immunodeficiencies ( SCID ) are a group of inherited diseases of the immune system by characterised profound abnormalities of T cell development . Infants with SCID require prompt clinical response to Prevent life -threatening infection and studies show significantly improved survival in babies Diagnosed at birth as a result of previous family history . SCID follows criteria for population -based newborn screening since it is asymptomatic at birth and fatal within the first year of life, the confirmation of the disease is easy, there is a curative treatment , and it is known that early stem cell transplantation improves survival . Quantification of TRECs (T- cell receptor excision circles ) in DNA extracted from Guthrie samples is a sensitive screening test for Specific and SCID .
The investigators propose in this study to perform a neonatal screening of SCID , in a population of 200,000 babies over a period of two years .
The investigators propose to study the clinical utility and cost effectiveness ratio, and SCID screening to demonstrate that could result in a broad benefit to Individuals detected , making screening relatively cost-effective in spite of the low incidence of the disease .
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The project proposes to study the feasibility and cost-effectiveness ratio ( time management and life expectancy to 10 years) of generalized neonatal screening for SCID children by offering this screening to 200 000 children (100 000 children per year) over the entire territory. Prospective control group consists of children diagnosed with SCID out of 700,000 annual births who do not benefit from screening.
The protocol will be leant against the existing newborn screening , that is to say two more drops of blood are placed on a second Guthrie card when current screening (72 hours of life ) is performed after parents' information and consent. Eleven newborn screening regional associations will be involved with the inclusion of children in about 50 maternity hospitals. The card drawn for the protocol will follow the usual network except that the test for quantifying TRECs will be realized in two laboratories instead of eleven laboratories assigned to RA . Investigative Regional Associations (RAs) represent nearly 600,000 births / year and the amount of 200,000 children will be achieved in two years (duration of inclusion) . All children born in the participating maternity may be included if they meet the inclusion criteria. The result of the screening test for SCID will be available within 21 days after birth, provided that there is no need to request a new sample.
At each of eleven RA is associated a pediatrician referent for immune deficiencies, member of the french reference center (CEREDIH) and who will be responsible to call the parents, offer them a consultation and further exploration if the result of screening is assumed positive.
Analysis of cards from 200,000 children will give the following information:
- Number of children with a presumptive positive screening , requiring a call by the referent pediatrician, consultation and exploration of lymphocyte subpopulations
- Number of children with a negative screening
- Number of children with an inconclusive screening (lack of TRECs and lack of amplification of the reference gene) and requiring a new card,
A micro- costing study will be conducted to assess the cost of testing .
This group of 200,000 children is the experimental group to assess the cost of screening , acceptability by parents (participation rate), the recall rate for abnormal or inconclusive result, the rate of follow-up time for results , the incidence of disease . It will also allow to calculate the specificity of the method .
At the end of the inclusions, the vital status at 18 months with cause of death will be sought for the 200 000 children included , with the CESP ( Centre de Recherche en Epidemiologie et Santé des Populations) via RNIPP (Répertoire National d'Identification des Personnes Physiques) and CepiDc ( Centre d'Epidémiologie sur les causes médicales de décès) . This will establish whether there are SCID in this population which were not detected at birth. Furthermore, the investigators include in the study SCID children diagnosed without screening by pediatricians local referents DIP (including Necker main transplant center) . This will enable to approach the sensitivity of the method . All these data allow the calculation of the predictive values of the test.
In this experimental group will be isolated a group of individuals who screened positive and diagnosed as true SCID . Clinical data for these patients will be collected in an electronic CRF ( CRF ) by the pediatrician referral protocol (Dr Thomas C ) , including:
- The dates and results of explorations : lymphocyte subpopulations , blood count, determination of immunoglobulin levels
- The diagnosis made with identification of the genetic defect
- The date of care before curative treatment ( protected area isolation , anti -infective drugs )
- , Bacterial , fungal anti -viral treatments , and other
- The date of transplant, type of transplant or other treatment ... ...
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Angers, France
- Angers University Hospital
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Angers, France
- Angers Private Hospital Clinique de l'Anjou
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Argenteuil, France
- Argenteuil Hospital
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Aulnay-sous-Bois, France
- Aulnay-sous-Bois Hospital CHI Robert Ballanger
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Bordeaux, France
- Bordeaux university hospital
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Bordeaux, France
- Bordeaux Maison de Santé Protestante Bordeaux Bagatelle
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Bordeaux, France
- Bordeaux Private Hospital Polyclinique Bordeuax Nord Aquitaine
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Corbeil Essonnes, France
- Corbeil Essonnes Hospital Sud Francilien
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Créteil, France
- Créteil Hospital
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Dijon, France
- Dijon University Hospital
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Grenoble, France
- Grenoble University Hospital
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Le Blanc Mesnil, France
- Le Blanc Mesnil Private Hospital
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Lens, France
- Lens Hospital
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Libourne, France
- Libourne Maternity Hospital
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Lille, France
- Lille University Hospital
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Lormont, France
- Lormont Maternity Hospital Rive Droite
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Lyon, France
- Lyon university hospital
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Lyon, France
- Lyon Maternity Hospital
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Marseille, France
- Marseille University Hospital
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Marseille, France
- Marseille Saint-Joseph Hospital
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Marseille, France
- Marseille University Hospital La Conception
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Marseille, France
- Marseille University Hospital Nord
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Meaux, France
- Meaux Hospital
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Montreuil, France
- Montreuil Hospital CHI André Grégroie
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Nantes, France
- Nantes University Hospital
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Nantes, France, 44000
- Nantes University Hospital
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Nantes, France
- Nantes Private Hospital Clinique Jules Verne
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Paris, France
- Paris Hospital Saint-Joseph
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Paris, France
- Paris Necker University Hospital
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Paris, France
- Paris University Hospital Armand-Trousseau
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Paris, France
- Paris University Hospital Bichat
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Paris, France
- Paris University Hospital Bicêtre
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Paris, France
- Paris University Hospital Béclère
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Paris, France
- Paris University Hospital Jean Verdier
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Paris, France
- Paris University Hospital La Pitié Salpétrière
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Paris, France
- Paris University Hospital Louis Mourier
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Paris, France
- Paris University Hospital Necker
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Poissy, France
- Poissy Hospital CHI Poissy-Saint-Germain
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Pontoise, France
- Pontoise Hospital René Dubos
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Rennes, France
- Rennes University Hospital
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Rennes, France
- Rennes Private Hospital Clinique Mutualiste La Sagesse
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Rennes, France
- Saint-Grégoire Private Hospital
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Roubaix, France
- Roubaix hospital
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Saint-Herblain, France
- Saint-Herblain Private Hospital Polyclinique de l'Atlantique
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Saint-Mande, France
- Saint-Mande Army Hospital Begin
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Saint-Martin d'Hères, France
- Saint-Martin-d'Hère Private Hospital Clinique Belledonne
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Strasbourg, France
- Strasbourg university hospital
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Strasbourg, France
- Strasbourg Private Hospital Clinique Adassa
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Toulouse, France
- Toulouse University Hospital
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Toulouse, France
- Toulouse Private Hospital Clinique Sarrus Teinturiers
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Toulouse, France
- Toulouse University Hospital P. DE VIGUIER
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Screening Group: Newborn on day 3 of birth (premature and non premature)
- Control group: Patients diagnosed with SCID without screening at participating centers
Exclusion Criteria:
- Lack of parental consent
- Children whose parents are adults under guardianship,
- Children without health insurance, for the screening group:
- The early exit of the child from the maternity hospital
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Screening
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Screened patients
SCID screening: more drops of blood are placed on a second Guthrie card when current screening (72 hours of life ) is performed after parents' information and consent.
The card drawn for the protocol will follow the usual network except that the test for quantifying TRECs will be realized to determine the presence of SCID.
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No Intervention: Control group
SCID children diagnosed without screening by pediatricians local referents DIP
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
cost / efficiency ratio of the implementation of the generalized neonatal screening of SCID at birth
Time Frame: 18 months
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Efficacy endpoint: number of children receiving early therapeutic suitable for curative ( transplant, enzyme treatment or gene therapy)
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18 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cost / efficiency ratio of the implementation of the generalized neonatal screening of SCID at birth
Time Frame: 10 years
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Efficacy endpoint: life expectancy of children modeled from the results of the study and data from the literature
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10 years
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The cost of care during the first 18 months of life per child enjoying an early curative treatment in the first 4 months of life.
Time Frame: 18 months
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Costs of care will be estimated during the first 18 months of life of the child.
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18 months
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Length of hospitalization of children with SCID in the first 18 months of life
Time Frame: 18 months
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18 months
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number of avoided deaths
Time Frame: 18 months
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18 months
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number of detected SCID patients
Time Frame: 18 months
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18 months
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number of patients detected with other T lymphopenia (SCID variants , DiGeorge , severe T lymphopenia non SCID ... )
Time Frame: 18 months
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18 months
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number of false negative and false positive results
Time Frame: 18 months
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False negative results : patients from the control group diagnosed with SCID without screening who would have a negative screening or patients from the screening group died from a SCID and with a negative screening False positive: patients from the screening group with a positive screening but without SCID
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18 months
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Caroline THOMAS, MD, CHU Nantes
- Study Director: Marie AUDRAIN, MD, CHU Nantes
- Principal Investigator: Sophie MIRALLIE, CHU Nantes
Publications and helpful links
General Publications
- Thomas C, Durand-Zaleski I, Frenkiel J, Mirallie S, Leger A, Cheillan D, Picard C, Mahlaoui N, Riche VP, Roussey M, Sebille V, Rabetrano H, Dert C, Fischer A, Audrain M. Clinical and economic aspects of newborn screening for severe combined immunodeficiency: DEPISTREC study results. Clin Immunol. 2019 May;202:33-39. doi: 10.1016/j.clim.2019.03.012. Epub 2019 Apr 1.
- Audrain MAP, Leger AJC, Hemont CAF, Mirallie SM, Cheillan D, Rimbert MGM, Le Thuaut AM, Sebille-Rivain VA, Prat A, Pinel EMQ, Divry E, Dert CGL, Fournier MAG, Thomas CJC. Newborn Screening for Severe Combined Immunodeficiency: Analytic and Clinical Performance of the T Cell Receptor Excision Circle Assay in France (DEPISTREC Study). J Clin Immunol. 2018 Oct;38(7):778-786. doi: 10.1007/s10875-018-0550-7. Epub 2018 Sep 24.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- RC14_0030
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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