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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03924180
Other study ID # DR180127 - GLEEPHEN
Secondary ID 2018-A03244-51
Status Completed
Phase N/A
First received
Last updated
Start date September 19, 2019
Est. completion date September 5, 2022

Study information

Verified date September 2022
Source University Hospital, Tours
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Phenylketonuria is the most common inherited metabolic disease in France and is screened for neonatal exposure. Management consists of a strict and restrictive hypoproteic diet and the intake of amino acid substitutes and dietary supplements free of phenylalanine.One of the major difficulties, which is the source of many treatment failures, is the inappetence of the amino acid supplements required during a strict hypoproteic diet. New formulations, Glycomacropeptides (GMP), have recently appeared and are considered more palatable than conventional amino acid mixtures.


Description:

Phenylketonuria is the most common inherited metabolic disease in France and is screened for neonatal exposure. Management consists of a strict and restrictive hypoproteic diet and the intake of amino acid substitutes and dietary supplements free of phenylalanine. If the benefits of treatment are indisputable in children in terms of cognitive prognosis, this benefit is discussed once brain development is complete, especially as many adult patients are no longer treated. However, cognitive, neurological and reversible white matter disorders undergoing treatment are increasingly reported in adult phenylketonurics. As a result, recent European recommendations advocate the maintenance of life-long treatment. One of the major difficulties, which is the source of many treatment failures, is the inappetence of the amino acid supplements required during a strict hypoproteic diet. New formulations, Glycomacropeptides (GMP), have recently appeared and are considered more palatable than conventional mixtures. PRIMARY OBJECTIVE: Demonstrate a better metabolic balance under GMP treatment than a conventional amino acid mixture in adult phenylketonuric patients when resuming treatment.


Recruitment information / eligibility

Status Completed
Enrollment 13
Est. completion date September 5, 2022
Est. primary completion date March 14, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Patient age =18 years on an empty stomach - Phenylketonuric patient Patient with Phenylalaninemia = 900µmol / L on a blotter performed during the screening period (or average of blotter results =900 µmol / L if several blotters performed during the screening period) - Untreated or insufficiently treated patient: not taking or insufficiently Dietary foods for special medical purposes for his PKU, regardless of diet, at the discretion of the investigator - Patient having signed a free, informed and express consent - Patient requiring a diet restricted in natural proteins Exclusion Criteria: - Protected patient: court bail - Patient with concomitant diseases / conditions that may compromise the study, at the discretion of the investigator - Participated in a clinical trial or trial to evaluate PKU foods or treatments in the last 7 days prior to inclusion or planned during the next 6 months - Participation in an interventional study with health products during the next 6 months - Pregnancy project within 6 months, pre-conception diet, pregnancy or breastfeeding - Refusal to consume only validated complements for the protocol - Phenylketonuria undergoing treatment with BH4 - Allergy to the product under study

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Dietary Supplement for PKU patients
For both treatment groups, the objective in total protein will be 1g / kg / day of ideal weight, in 3-6 doses / day, including natural proteins and supplemented by the products under study.

Locations

Country Name City State
France CHU-ANGERS -Médecine Interne Angers
France CHU du Morvan-Département de Pédiatrie et génétique médicale, Brest
France Hôpital Femme-Mère-Enfant-Centre de Référence des Maladies Héréditaires du Métabolisme de Lyon Bron
France CHU de LILLE-Hôpital Claude HURIEZ-Service d'Endocrinologie Lille
France CHU-Service de Réanimation Pédiatrique / Néonatalogie, Consultation spécialisée en Maladies Héréditaires du Métabolisme Nantes
France CHU-RENNES-Hôpital Sud-Service de Génétique-Clinique Rennes
France CHRU-Hôpital Bretonneau - Service de Médecine Interne-Nutrition Tours Centre

Sponsors (1)

Lead Sponsor Collaborator
University Hospital, Tours

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Rate of phenylalaninemia on blotter Rate of phenylalaninemia on blotter measured bi-monthly during the 6 months of the study. 6 months
Secondary Therapeutic compliance Therapeutic compliance measured after 3 months and 6 months of treatment 6 months
Secondary Evolution of neuropsychological tests Neuropsychological tests measured after 3 months and 6 months of treatment 6 months
Secondary MRI brain M0, M6 evolution MRI brain evolution between inclusion and 6 months of treatment 6 months
Secondary Bone remodeling markers Bone remodeling markers at inclusion and 6 months of treatment 6 months
Secondary Evolution of quality of life (PKU QoL score), mood (POMS test - Fillion 1999), at M0, M3, M6. Evolution of quality of life scores at inclusion, 3 months and 6 months of treatment 6 months
Secondary Nutritional and clinical markers evaluated at inclusion and 6 months of treatment Evolution of nutritional and clinical markers at inclusion and 6 months of treatment 6 months
Secondary Gastrointestinal tolerance at M3 and M6 Evolution of Gastrointestinal tolerance after 3 months and 6 months of treatment 6 months