Ignite Creation Date:
2025-12-24 @ 10:20 PM
Ignite Modification Date:
2026-01-05 @ 6:11 PM
Study NCT ID:
NCT05938335
Status:
UNKNOWN
Last Update Posted:
2023-07-10
First Post:
2023-06-12
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Sequencing of 14 Genes From Leptin Melanocortin Pathway in Severe Obesity in Childhood.
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D063766', 'term': 'Pediatric Obesity'}], 'ancestors': [{'id': 'D009765', 'term': 'Obesity'}, {'id': 'D050177', 'term': 'Overweight'}, {'id': 'D044343', 'term': 'Overnutrition'}, {'id': 'D009748', 'term': 'Nutrition Disorders'}, {'id': 'D009750', 'term': 'Nutritional and Metabolic Diseases'}, {'id': 'D001835', 'term': 'Body Weight'}, {'id': 'D012816', 'term': 'Signs and Symptoms'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}]}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'NA', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'DIAGNOSTIC', 'interventionModel': 'SINGLE_GROUP'}, 'enrollmentInfo': {'type': 'ESTIMATED', 'count': 100}}, 'statusModule': {'overallStatus': 'UNKNOWN', 'lastKnownStatus': 'NOT_YET_RECRUITING', 'startDateStruct': {'date': '2023-10-01', 'type': 'ESTIMATED'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2023-07', 'completionDateStruct': {'date': '2025-01-01', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2023-07-03', 'studyFirstSubmitDate': '2023-06-12', 'studyFirstSubmitQcDate': '2023-07-03', 'lastUpdatePostDateStruct': {'date': '2023-07-10', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2023-07-10', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2024-10-01', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'frequency of mutations of genes from leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Evaluating of the frequency of mutations of 14 genes from leptin melanocortin pathway (LEP, LEPR, POMC, PCSK1, MC3R, MC4R, MRAP2, ADCY3, SIM1, SH2B1, NTRK2, BDNF, KSR2) in a group of french children with severe obesity.'}], 'secondaryOutcomes': [{'measure': 'Clinical characteristics of children with severe obesity followed in CHRU of Nancy', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics : height in cm BMI'}, {'measure': 'Clinical characteristics of children with mutations of leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics :thyroid function (TSH T3 T4)'}, {'measure': 'Clinical characteristics of children with mutations of leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics : IGF1 levels'}, {'measure': 'Clinical characteristics of children with mutations of leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics :BMI in kg/m²'}, {'measure': 'Clinical characteristics of children with mutations of leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics : weight in kg'}, {'measure': 'Clinical characteristics of children with mutations of leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics : bone age (X ray of the left hand)'}, {'measure': 'Clinical characteristics of children with mutations of leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics : metabolic profile'}, {'measure': 'Clinical characteristics of children with mutations of leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics : leptin level'}, {'measure': 'Penetrance of mutations from leptin melanocortin pathway', 'timeFrame': '1 year', 'description': 'Evaluation of the penetrance of mutation from leptin melanocortin pathway, that is to say the percentage of obesity in mutation carrier'}, {'measure': "effect of age, sex, country of birth on mutations' penetrance.", 'timeFrame': '1 year', 'description': "Evaluation of the effect of age, sex, country of birth on mutations' penetrance."}, {'measure': 'Clinical characteristics of children with severe obesity followed in CHRU of Nancy', 'timeFrame': '1 year', 'description': 'Description of Clinical characteristics of children with severe obesity followed in CHRU of Nancy : weight in kg Description of the clinical characteristics :'}, {'measure': 'Clinical characteristics of children with severe obesity followed in CHRU of Nancy', 'timeFrame': '1 year', 'description': 'Description of the clinical characteristics :BMI in kg/m²'}]}, 'oversightModule': {'oversightHasDmc': False, 'isFdaRegulatedDrug': False, 'isFdaRegulatedDevice': False}, 'conditionsModule': {'conditions': ['Obesity, Child']}, 'descriptionModule': {'briefSummary': 'About 380 million children and adolescents suffer from overweight and obesity at the global level. Obesity results from the interplay between biological (sex, age, fetal programming, gut microbiota, epigenetics, and genetics) and environmental factors (e.g., unhealthy diet, physical inactivity, stress). Mutations in genes from leptin melanocortin pathway are involved in "non syndromic monogenic obesity", characterized by severe early onset obesity, hyperphagia and endocrine deficiencies. Exact frequencies of mutation in these genes are not precisely evaluated in french children with severe obesity. Moreover new treatment, such seltmelanotide are avalaible in case of certain mutation, leading to a significative weight loss in treated patients.', 'detailedDescription': 'Obesity is a global health concern that affected more than 650 million adult people and more than 380 million children and adolescents worldwide, with no signs of slowing down despite major investments in health policy. Obestiy is a multifactorial disease, but 40 to 75% of body mass index (BMI) variation is explained by genetic factors.\n\nMutations in genes from leptin melanocortin pathway lead to "non syndromic monogenic obesity", characterized by severe early onset obesity, hyperphagia and endocrine deficiencies. This pathway plays a central role in regulating mammalian food intake, energy expenditure and body weight regulation. Somes genes are well characterized such LEP gene, LEPR gene, or MC4R but others have been recently described as ADCY3, SIM1, SH2B1, NTRK2, BDNF, KSR2.\n\nThe frequency of these mutations are not precisely estimated in a group of french children with severe obesity.\n\nMoreover, a precocious identification of these mutations, could afford, in certain case the possibility of a efficient treatment with setmelanotide, leading to a significant weight loss in treated patients.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT'], 'maximumAge': '18 Years', 'minimumAge': '6 Months', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* severe obesity with BMI \\> 3SDS\n\nExclusion Criteria:\n\n* genetic obesity (Prader Willi syndrome, Bardet Biedl syndrome, X fragile syndrome, Alstrom syndrome)\n* BMI \\< 3 SDS\n* age \\< 6 months\n* monogenic non syndromic obesity, with mutation in genes of leptin melanocortin pathway previously diagnosed\n* cushing syndrome'}, 'identificationModule': {'nctId': 'NCT05938335', 'acronym': 'OBEGEN', 'briefTitle': 'Sequencing of 14 Genes From Leptin Melanocortin Pathway in Severe Obesity in Childhood.', 'organization': {'class': 'OTHER', 'fullName': 'Central Hospital, Nancy, France'}, 'officialTitle': 'Results of Sequencing of a Large Panel of Genes From Leptin Melanocortin Pathway in Children Suffering From Severe Obesity', 'orgStudyIdInfo': {'id': '2023PI'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'severe obese children', 'description': 'children with severe obesity with BMI \\> 3sds', 'interventionNames': ['Genetic: sequencing of a panel of 14 genes in leptin melanocortin pathway']}], 'interventions': [{'name': 'sequencing of a panel of 14 genes in leptin melanocortin pathway', 'type': 'GENETIC', 'description': 'sequencing (NGS) of a panel of 14 genes in leptin melanocortin pathway in french children with severe obesity', 'armGroupLabels': ['severe obese children']}]}, 'contactsLocationsModule': {'centralContacts': [{'name': 'Emeline RENARD', 'role': 'CONTACT', 'email': 'e.renard@chru-nancy.fr', 'phone': '+33383154500'}]}, 'ipdSharingStatementModule': {'ipdSharing': 'UNDECIDED'}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Central Hospital, Nancy, France', 'class': 'OTHER'}, 'responsibleParty': {'type': 'PRINCIPAL_INVESTIGATOR', 'investigatorTitle': 'Doctor', 'investigatorFullName': 'RENARD Emeline', 'investigatorAffiliation': 'Central Hospital, Nancy, France'}}}}