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Lipodystrophy clinical trials

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NCT ID: NCT06236932 Recruiting - Obesity Clinical Trials

Susceptibility to Infectious Diseases in obEsity: an endocRine trAnslational socioLogic Evaluation, "SIDERALE"

SIDERALE2020
Start date: December 29, 2023
Phase: N/A
Study type: Interventional

Obesity is a life-threatening disease, defined by excessive fat accumulation that increases the risk of other diseases such as cardiovascular events, hypertension, diabetes and cancer. Obesity is also a risk factor for nosocomial infections and is associated with worse COVID-19 outcomes, although anthropometric measurements are not routinely recorded during hospitalization and lack of a registry data does not allow performing retrospective studies.Obesity is closely related to chronodisruption, characterized by deregulation of physiological and behavioral central and peripheral circadian rhythms contributing to the obesity-related metabolic impairment. Eating and sleeping time schedules are relevant synchronizers of humans' biological clock. Several studies suggest a role of dietary interventions in rewiring the circadian rhythm, with Mediterranean diet (MD) regulating nutritional patterns. Moreover, considering its positive impact on sleep quality, melatonin intake was suggested as a potential regulator of circadian rhythms. The relation between chronodisruption, obesity and infections has not been investigated, and a first proof of concept (Pilot study) will aim at investigating it. Three cohorts of obese patients with different aetiology (essential obesity, obesity with type 2 diabetes, genetic forms of obesity) and a cohort of lipodystrophic patients will be enrolled in the study, which is designed as a two-phases protocol. During the first phase (0-12 weeks (w)) patients will be subjected to dietary intervention with hypocaloric MD; in a second phase (12-24w), melatonin 1mg/die before sleep will be added to the hypocaloric MD. The susceptibility to infections will be investigated through the evaluation of 1) the number of events - i.e. flu- or flulike syndromes, skin, respiratory, digestive, urinary infections-per patient of the 4 groups and the blood assays to detect the infection with Epstein-Barr, Cytomegalovirus, Varicella, Measles and SARS-CoV-2 IgG and IgM; hepatitis C and hepatitis B core antibodies and Quantiferon TB Gold, 2) the clock genes rhythm and TLRs expression in patient immune cells at baseline, 12w and 24w.The mutual relationship between biomedical values, environmental and social conditions, and lifestyle habits will be evaluated by structured questionnaires. Validation of questionnaires to explore the susceptibility to infections is another delivery planned for the current study.

NCT ID: NCT06107439 Recruiting - Lipodystrophy Clinical Trials

Impact of Lipodystrophy on the Inflammatory State of Non-diabetic Dunnigan Reunion Island Subjects

LIPOKINES
Start date: August 14, 2023
Phase: N/A
Study type: Interventional

Few data and small numbers affect the inflammatory profile of Dunnigan patients. The levels of certain pro-inflammatory biomarkers would be found higher in these subjects compared to control individuals. However, in these studies, several confounding factors were not taken into account such as smoking, an underlying chronic inflammatory disease such as diabetes and could limit the interpretation of the results. There is no other observation of the anti-inflammatory status of these patients.

NCT ID: NCT06089759 Recruiting - Lipodystrophy Clinical Trials

Performance and Safety of the Lipo-transfer Cannulas in Patients Underlying Lipofilling Treatment

Start date: August 30, 2023
Phase:
Study type: Observational

The purpose of this post-market clinical follow up study is to assess the safety and performance of Aesthetic Group cannulas. The study will evaluate the outcome of the Aesthetic Group cannulas range over a period of 1 month after intervention.

NCT ID: NCT05996536 Recruiting - Lipodystrophy Clinical Trials

Feasibility of Adipose Tissue Triglyceride (TG) Labelling in Familial Partial Lipodystrophy (FPLD)

Start date: January 3, 2024
Phase:
Study type: Observational

Background: People with familial partial lipodystrophy (FPLD) do not store fat in the body normally. This can lead to serious illnesses such as diabetes and heart disease. To learn more about FPLD, researchers want to compare the fat tissue in people with this disease to the fat tissue of healthy people. Objective: To collect and analyze samples of fat tissue in people with and without FPLD. Eligibility: People aged 18 to 65 years with FPLD. Healthy adults are also needed. Design: Participants will be screened. They will have a physical exam. The size and shape of their body will be measured. They will have an imaging scan to measure their bones, muscle, and fat. Participants will be given heavy water to drink at home. The water contains a tracer to help measure the fat in their blood. They will drink 1 vial 3 times a day. After drinking the water for 9 days, participants will come to the clinic for a 3-day stay. They will eat only foods provided by the hospital; the foods will contain tracers. A needle will be inserted into a vein in the arm; participants will receive infusions of other tracers through this needle into their blood; this needle will also be used to draw blood samples for testing. On their third day in the clinic, participants will have biopsies: Small samples of fat will be removed from under the skin on the belly and thigh. Participants may return for a follow-up visit 8 days after leaving the clinic. Blood draws and fat tissue biopsies will be repeated.

NCT ID: NCT05930106 Recruiting - Lipodystrophy Clinical Trials

Carotid Doppler Peak Velocity Variation in Liposuction Fluid Management

Start date: November 20, 2023
Phase: N/A
Study type: Interventional

This study aims to compare the hemodynamic parameters, postoperative plethysmography variability index, the total amount of postoperative intravenous fluid administration needed, and the urine output of two methods of fluid resuscitation during liposuction surgery. One method involves using carotid artery Doppler peak velocity variation, while the other is the conventional fluid ratio.

NCT ID: NCT05789251 Recruiting - Lipodystrophy Clinical Trials

Assess the Possibility of Diagnosing Diabetes and Rediabetes Following Oral Induced Hyperglycemia in Patients With Dunnigan's Partial Familial Lipodystrophy by Replacing 75 g of Glucose With a Standardized Carbohydrate Breakfast and Continuous Interstitial Monitoring Glucose)

HGPO-DUN
Start date: June 19, 2023
Phase: N/A
Study type: Interventional

Dunnigan's syndrome is a partial familial lipodystrophy due to a mutation in the Lamine A LMNA gene. This very rare syndrome is 20 times more common in Réunion compared to the rest of Europe with several families suffering from a unique variant of LMNA, the p.(Thr655Asnfs*49) variant known as the "Reunion variant", the appearance of which in Reunion dates back to the 17th century. This variant is expressed in homozygous and heterozygous form and has only been identified in subjects from Reunion. Clinically, patients with Dunnigan's have an absence of subcutaneous fatty tissue which mainly affects the lower part of the body and leads to severe insulin resistance responsible for early diabetes. To detect these metabolic complications as early as possible, an annual follow-up of the subjects is recommended with the performance of an OGTT test annually in non-diabetic subjects. This problem is identical for patients with cystic fibrosis leading to the same recommendation. However, whether in our experience of monitoring patients with Dunningan's lipodystrophy, in subjects at risk of diabetes or in subjects with cystic fibrosis, the OGTT test and even more so its repetition is poorly accepted, which can lead to lack of patient follow-up. An alternative solution to the OGTT is therefore justified. In the literature, different avenues have been explored. First, given oral glucose intolerance, replacement with a standardized breakfast has been explored in several studies. Another alternative tested in the population of subjects with cystic fibrosis is the use of an interstitial glucose sensor for screening for carbohydrate abnormalities. In view of the literature, we formulate several hypotheses that will be tested in our study: 1. The intake of a standardized breakfast containing 75g of carbohydrates is comparable to the ingestion of 75g of glucose on the result of the OGTT test at 120 min for the diagnosis of carbohydrate abnormalities (diabetes and prediabetes) in patients with Dunnigan's lipodystrophy. 2. The continuous recording of interstitial glycaemia over several days allows the diagnosis of glucidic abnormalities equivalent to the classic OGTT in this population; possibly by identifying glycemic variations not seen by a single OGTT test. Thus the installation of an interstitial sensor over several days could be an alternative to the realization of the OGTT in the identification of carbohydrate disorders in patients with Dunnigan's lipodystrophy. 3. There will be a similar profile but a time lag between venous glycemic curves and interstitial blood glucose measurements after OGTT. 4. Replacing the oral glucose load of the classic OGTT (gold standard) with a standardized carbohydrate breakfast leads to similar interstitial glycaemia curves but with a time lag.

NCT ID: NCT05776836 Recruiting - Clinical trials for Facial Lipoatrophy (FLA)

Evaluation of HA Dermal Fillers in the Treatment of Pathological Facial Lipoatrophy

HAtrophy
Start date: August 28, 2023
Phase: N/A
Study type: Interventional

Facial lipoatrophy (FLA) refers to the loss of adipose tissue and is manifested by flattening or indentation of convex contours of the face. Most frequently, the subcutaneous layer is affected and most common locations of adipose tissue loss are the cheeks, temples, preauricular, orbital or perioral and oral areas. Most common etiology for FLA is related to HIV. In 1998, first FLA was described in Subjects under highly active antiretroviral therapy (HAART). Currently, no specific treatment for FLA is known. For HIV-associated FLA, the European AIDS Clinical Society (EACS) recommends in prevention, the avoidance of some ART (Active Antiretroviral therapy) such as stavudine and zidovudine. In corrective purpose, the switch of ART is advisable as well as surgical intervention involving dermal fillers. Different filling treatment options are available to treat volume defect on FLA Subjects including PolyLactic Acid (PLLA) (i.e.; Sculptra®), Calcium hydroxyapatite ( CaHa - i.e.: Radiesse®), autologous fat graft and hyaluronic acid (HA). Several studies shown promising results for the use of HA in this indication with good reconstructive and aesthetic outcomes, excellent safety profile and comparable to the autologous fat transfer treatment. HA fillers are described as voluming agents for treatment of FLA associated with fat wasting disorders, lasting at least 6 months but the persistent volumetric effect depends on HA crosslinking level and concentration.

NCT ID: NCT05608239 Not yet recruiting - Aging Clinical Trials

Safety and Efficacy of Injectable Poly-L-Lactic Acid for Volume Loss in the Temples Using Dual Plane Injections

Start date: November 2022
Phase: N/A
Study type: Interventional

Temporal volume loss is part of the natural aging process of the face. It is primarily the consequence of fat pad atrophy, but bone loss, ligament weakening, soft tissue, and muscle also contribute. . The goal of the study is to evaluate the volumizing and bio-stimulatory effects of sculptra injections in the temples.

NCT ID: NCT05470504 Recruiting - Clinical trials for Partial Lipodystrophy

Study of Growth Hormone Inhibition Using Pegvisomant in Severe Insulin Resistance

Start date: January 23, 2023
Phase: Phase 2
Study type: Interventional

Background: Lipodystrophy (LD) syndromes are a group of rare disorders that affect how a person s body can store and use fat tissue. Many people with LDs become severely insulin resistant. Some people are insulin resistant because of a variant in the insulin receptor gene. Insulin resistance causes many health problems. Objective: To learn if blocking the effects of growth hormone in the body will help people with severe insulin resistance. Eligibility: Adults aged 18 to 65 years with either a known variant in the insulin receptor gene or with a diagnosis of partial LD. Design: Participants will have 2 hospital stays, about 1 month apart. Each stay will be 3 or 4 nights. During each hospital stay, participants will have many tests. They will have a physical exam with blood tests. They will have all of their urine collected for a 24-hour period. They will have scans to measure their muscle, bone, and fat tissues. They will have tests to measure metabolism and insulin sensitivity. They may have an optional biopsy of fat tissue. During the first hospital visit, participants will learn how to give themselves shots of a drug (pegvisomant) that blocks growth hormone. The drug is injected under the skin. Participants will continue to give themselves these shots once a day at home. After the first hospital visit, participants will talk on the phone with members of the study team once each week. After 2 weeks they will have blood drawn for tests. Participants will stop the shots after the second hospital visit.

NCT ID: NCT05424913 Completed - Lipodystrophy Clinical Trials

Exploratory Study of the Relationships Between the Biomarkers of Inflammation, Lipidome and Insulin Resistance and Disorders of Glycemic Regulation in a Cohort of Insulin-resistant Subjects Due to Excess Weight or Dunnigan's Lipodystrophy

IRAP-DUN 2
Start date: August 17, 2021
Phase: N/A
Study type: Interventional

The objective of this work is to identify biomarkers of interest in patients with insulin resistance leading to early disorders of glycemic regulation. For this the investigators want to assay the insulin resistance marker Insulin Regulated Amino Peptidase serique (IRAPs), the plasma lipidome and inflammation markers in 2 populations of insulin-resistant subjects due to Dunnigan's inherited lipodystrophy or overweight/obesity and insulin-sensitive subjects with or without a glycemic regulation disorder objectified during an Oral induced hyperglycemia. The results of the IRAPs, lipidome and inflammation assays will be compared in insulin-resistant subjects, between normoglycemic, prediabetic and diabetic subjects. Correlations will be made between these markers and the deterioration of glycemic regulation as well as with known insulin resistance parameters (HOmeostasis Assessment Model (HOMA), Quantitative Insulin-sensitivity Check Index (QUICKI),Insulin Sensitivity Index (Isi) MATSUDA).