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New Phototherapy Device to Treat Patients With Crigler-Najjar Disease (DRAP)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02356978
Recruitment Status : Unknown
Verified December 2016 by Assistance Publique - Hôpitaux de Paris.
Recruitment status was:  Recruiting
First Posted : February 6, 2015
Last Update Posted : September 12, 2017
Information provided by (Responsible Party):
Assistance Publique - Hôpitaux de Paris

Brief Summary:
Evaluating the efficacity of a new device phototherapy by comparing it with conventional phototherapy. Jaundice occurs in many newborns, and is, in most cases benign, However, owing to the potential neurotoxicity of unconjugated bilirubin, newborns must be monitored to identify those who might develop severe hyperbilirubinemia an, in rare cases, acute bilirubin encephalopathy or kernicterus. Treatment of jaundice in newborn relies on phototherapy, exposing their skin to light of a specific wavelength . Fluorescent tubes or halogen lamps have been used as light sources for phototherapy for many years. Light-emitting diodes (LEDs) are more recent sources which are power efficient, have a longer life and are portable with low heat production. Several technologies and devices are developed using LEDs and specially a compact system.

Condition or disease Intervention/treatment Phase
Crigler Najjar Syndrome Children Device: Arm1 homemade phototherapy treatment Device: DRAP Not Applicable

Detailed Description:

Crigler-Najjar (CN) syndrome is a congenital inborn error of hepatic bilirubin metabolism caused by the deficiency of bilirubin uridinediphosphate glucuronosyltransferase activity CN patients are at permanent risk of life-threatening bilirubin encephalopathy (kernicterus). Treatment of CN disease relies on daily prolonged phototherapy (10-12 h/day). To date, liver transplantation is the only curative treatment available. To date, no phototherapy device exists for teenagers and adults. CN patients use homemade systems or add several neonatal systems together to reach a better efficacy.

A new device has been designed by weaving optical fibers into a sheet connected to LEDs. This new technology, marketed by several manufacturers of phototherapy devices, is used in pediatric wards for treating jaundiced newborns. A prototype of 80× 100cm was thus developed, which combines numerous advantages : important surface of treatment, easy use and transportation, user-friendliness.

Before going to a therapeutic trial for assessing the benefits of this new device in ambulatory current practice, it is essential to make sure of both its feasibility and efficiency on the control of bilirubinemia, under medical supervision.

Hypothesis: the new phototherapy sheet is as effective as, and better tolerated than the usual devices used in CN patients.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 6 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Trial of a New Phototherapy Device for Treating Hyperbilirubinemia in Crigler-Najjar Patients : a New Concept
Study Start Date : December 2014
Estimated Primary Completion Date : December 2017
Estimated Study Completion Date : December 2017

Arm Intervention/treatment
Experimental: Arm 1

Each patient will be treated before using the active usual homemade device, and after using the experimental new "DRAP" device.

This new sheet was designed by weaving optical fibers connected to LEDs ( "BROCHIER" Technology). The "LIGHTEX" technology ® is a principle of weaving mill of optical fibres with side lighting connected to LEDs and allowing to realize flexible or stiff bright surfaces with very weak congestions, low consumption and high life cycle. The energy illumination of this device varies between 3 and 4 mW / cm ² ( average 3,6 mW / cm ².)

Device: Arm1 homemade phototherapy treatment
session of 10 or 12 hours phototherapy treatment using the homemade device during the first night and then the "DRAP" device during the next nights.

Device: DRAP

Primary Outcome Measures :
  1. Kinetic of blood Bilirubin level using the "DRAP" device (blood bilirubin concentration) [ Time Frame: Before using "DRAP" device (H0), and after using (Hour12, Hour 36, Hour 48, Hour 60, Hour 72, Hour 84, Hour 96) ]
    blood bilirubin concentration will be measured 2 times during phototherapy treatment (before and after phototherapy)

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Ages Eligible for Study:   up to 6 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • genetic diagnosis of Crigler Najjar disease
  • child whose height is between 60cm and 100cm
  • patients with follow-up in reference center,

Exclusion Criteria:

  • opposition of parents
  • no social security insurance

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02356978

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Contact: VINCENT GAJDOS, Professor +33 1 45 37 42 72

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AP-HP, Antoine Béclère Hospital Recruiting
Clamart, France, 92141
Contact: VINCENT GAJDOS, Professor    +33 1 45 37 42 72   
Sponsors and Collaborators
Assistance Publique - Hôpitaux de Paris
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Principal Investigator: VINCENT GAJDOS, Professor AP-HP, Antoine Béclère Hospital

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Responsible Party: Assistance Publique - Hôpitaux de Paris Identifier: NCT02356978     History of Changes
Other Study ID Numbers: P140202
First Posted: February 6, 2015    Key Record Dates
Last Update Posted: September 12, 2017
Last Verified: December 2016

Keywords provided by Assistance Publique - Hôpitaux de Paris:
Rare disease
Crigler-Najjar disease
Experimental device

Additional relevant MeSH terms:
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Crigler-Najjar Syndrome
Hyperbilirubinemia, Hereditary
Metabolism, Inborn Errors
Genetic Diseases, Inborn
Metabolic Diseases