Carbohydrate Metabolism Disorder Frequency in Hypertriglyceridemia Induced by Bexarotene of Cutaneous T Cell Lymphoma (TgBEX)
|Hypertriglyceridemia Cutaneous T Cell Lymphoma||Other: oral glucose tolerance test (OGTT)||Phase 4|
|Study Design:||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
|Official Title:||Estimation of Carbohydrate Metabolism Disorder Frequency in Hypertriglyceridemia Induced by Bexarotene Treatment of Cutaneous T Cell Lymphoma - Pilote Study|
- glucose intolerance or diabetes [ Time Frame: At 0, 2, 4, 6, 8 weeks after the administration of bexarotene. ]The presence of a carbohydrate disorder is defined by glucose intolerance or diabetes. The diagnosis of glucose intolerance is made for a fasting glucose less than 1.26 g / l glucose and 2 hours (T120mn) after taking 75 g of glucose during an oral glucose tolerance test (OGTT) between 1.4 and 2 g / l and / or a value greater than or equal to 2 g / l between T30 and T90 min. Diabetes is established for a fasting glucose greater than or equal to 1.26 g / l and / or blood glucose greater than or equal to 2 g / l to 2 hours.
- hypothyroidism [ Time Frame: At 0, 2, 4, 6, 8 weeks after the administration of bexarotene. ]hypothyroidism detection: TSH, free T3 and free T4 measured weekly during the first month and then every 15 days in the second month. Laboratory abnormalities will be evaluated according to the standards of the laboratory of each center.
- response to bexarotene [ Time Frame: At 0, 2, 4, 6, 8 weeks after the administration of bexarotene. ]Response to bexarotene: it is considered partial if the patient has a decrease in injuries between 50% and 90% to total as if it has a lower damage of more than 90%.
|Study Start Date:||January 2012|
|Study Completion Date:||April 2017|
|Primary Completion Date:||December 2016 (Final data collection date for primary outcome measure)|
Other: oral glucose tolerance test (OGTT)
patients presenting an hypertriglyceridemia will have a oral glucose tolerance test (OGTT) in order to diagnose a carbohydrate metabolism disorder
Other Name: Non applicable.
Primary cutaneous lymphomas are the second group of extra nodal lymphomas after gastrointestinal lymphomas. Bexarotene is licensed for the treatment of epidermotropic cutaneous T cell lymphoma .The most common side effect of bexarotene is hypertriglyceridemia (82%) associated with hypercholesterolemia (30 to 40%). Central hypothyroidism is also present in 40-80% of cases. These adverse effects are dose-dependent. The management of hyperlipidemia induced by bexarotene is difficult. The mechanism of lipid disorder induced by bexarotene is not well known. Associated carbohydrate metabolism disorder could be present and play a role in the bexarotene-induced hyperlipidemia.
The main objective is to estimate the frequency of a carbohydrate disorder in patients with hypertriglyceridemia (TG> 1.5 g / L) induced by bexarotene treatment of cutaneous T cell lymphoma, previously free of diabetes, thyroid dysfunction and dyslipidemia.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01569724
|Service de dermatologie - Hôpital de Pontchaillou|
|Rennes, France, 35033|
|Principal Investigator:||Henri ADAMSKI, MD||Rennes University Hospital|
|Study Chair:||Emmanuel OGER, MD, PhD||Rennes University Hospital|