View clinical trials related to Adrenal Insufficiency.
Filter by:The excess of glucocorticoid, whether endogenous or exogenous, results in Cushing's syndrome, associating a particular distribution of fats (accumulation in the face and trunk), a decrease in the thickness of the muscles, diabetes, hypertension or osteoporosis. The level of effects obviously depends on the extent of the excess glucocorticoids, and on the duration of this exposure. However, the manifestations of Cushing's syndrome also depend very much on the sensitivity of each individual to glucocorticoids for each of these conditions. Indeed, for the same duration and level of exposure, some will have diabetes only, others only osteoporosis, others hypertension, while still others will have these three complications. Today the investigators are unable to specify individual risks. For example, will someone develop diabetes when exposed to glucocorticoids? Or on the contrary will blood sugar level remain normal? The same question arises for hypertension and osteoporosis. The deficiency of glucocorticoid, called adrenal insufficiency, causes fatigue and discomfort. The intensity of the signs depends on the depth of the insufficiency. Here again, there is a large variability in the sensitivity of each individual to glucocorticoids: when one substitutes for adrenal insufficiency at a given dose, some individuals will feel well, while others will still remain tired. The investigators are unable to specify participant's individual requirement. The aim of this research is to identify factors that determine individual sensitivity to glucocorticoids. For excess glucocorticoids, the investigators are looking for specific molecular markers for each type of glucocorticoid complication: markers for corticosteroid-induced diabetes, corticosteroid-induced hypertension, or corticosteroid-induced osteoporosis. For adrenal insufficiency, they are also looking for substitute good balance markers for adrenal insufficiency. To answer the research question, it is planned to include 400 subjects exposed to glucocorticoid excess (by excess of endogenous glucocorticoids or induced by corticosteroid therapy) and 100 subjects with adrenal insufficiency. It is also planned to include 100 subjects without excess glucocorticoids but presenting either diabetes, hypertension or osteoporosis; these subjects will constitute a control group. The investigators will perform a very large number of measurements in small amounts of blood and urine, in order to identify a few marks specifically associated with each of the complications. This research will identify, for every person exposed to glucocorticoids, the probability of developping some complications, and reversely the probability of being exempt from other complications.
The investigators hypothesize that withholding hydrocortisone during the peri-operation in patients with pituitary adenomas whose hypothalamus pituitary adrenal axis are intact are safe.
This is a multicentric, prospective, intervention study on circadian genes expression in peripheral blood mononuclear cells as biomarkers of circadian rhythm derangement in patients affected by alterations of endogenous glucocorticoids secretion (Cushing's Syndrome during active phase, treatment and under remission and newly or on established glucocorticoid replacement therapy adrenal insufficiency)
The study investigators are interested in learning more about how drugs, that are given to children by their health care provider, act in the bodies of children and young adults in hopes to find the most safe and effective dose for children. The primary objective of this study is to evaluate the PK of understudied drugs currently being administered to children per SOC as prescribed by their treating provider.
This pilot study is designed to compare healthy volunteers with three groups of patients with adrenal insufficiency and a final group of patients receiving high dose steroids for anti-inflammatory purposes. The study will collect data on all 5 groups with the intention of identifying any novel markers or immunological indicators which may be used clinically to gauge the adequacy of steroid replacement treatment in patients with adrenal insufficiency.
This study is designed to collect data on individuals with adrenal insufficiency who are changing treatments from hydrocortisone to prednisolone, or vice versa. It will compare anthropometric, biochemical and subjective health outcomes between both treatments.
Adherence, concerns and satisfaction with information in German patients with adrenal insufficiency as well as the influence of a standardized education program will be assessed by a compared cross-sectional and longitudinal study.
In mitotane treated patients, serum cortisol cannot be used to diagnose hypoadrenalism, since mitotane increases cortisol binding globulin levels (CBG), artificially raising total cortisol. Salivary free cortisol (SC) is not affected by CBG alterations, and reflects the free serum cortisol. In the current study, investigators will assess serum and SC responses during low-dose cosyntropin stimulation test in healthy volunteers, mitotane-induced hypoadrenal patients on steroid replacement therapy and in patients who suffer from hypoadrenlism caused from other etiology. Investigators will compare results between groups and try to demonstrate the superiority of SC in assessing adrenal function in mitotane treated patients.
Background: Endocrine glands give off hormones. Researchers want to learn more about the disorders that affect these glands in children. These disorders might be caused by changes in genes. Genes contain DNA, which is the blueprint of how a cell works. Researchers want to identify the genes involved in endocrine and metabolic disorders. This might help develop new ways to diagnose and treat the disorders. Objective: To study the inheritance of endocrine or metabolism disorders. Eligibility: Children ages 3month-18 with known or suspected endocrine or metabolism disorders. Family members ages 3months-100. They may participate in the DNA part of the study. Design: Participants will be screened with a review of their medical records. Their parents or guardians will allow the records to be released. Participants will have a clinic visit. This may include a physical exam and medical history. Parents or guardians will give their consent for the study. Participants may have tests, surgery, or other procedures to help diagnose or treat their condition. These could include: Blood, urine, and saliva tests Growth hormone test Pituitary and adrenal function tests Picture of chromosomes Imaging tests. These may include X-ray, ultrasound, scans, or a skeletal survey. Genetic tests Sleep study Medical photographs If surgery is done, a tissue sample will be taken. Participants may have follow-up visits for diagnosis and treatment. Participating relatives will have one visit. This will include medical history and blood and saliva tests. The blood and saliva will be used for DNA testing.
Rationale: Case reports describe suppression of the hypothalamic-pituitary-adrenal (HPA) axis caused by local corticosteroids, most often with inhalation corticosteroids. The exact prevalence is not known. Early recognition is important, because suppression of the HPA-axis can lead to significant morbidity and mortality. Suppression of the HPA axis might occur more often when a Cytochrome P450 3A4 (CYP3A4) inhibitor, e.g. ritonavir, is used next to the local corticosteroid, a combination often used by human immunodeficiency virus (HIV)-patients. Cortisol can be determined in hair. This non-invasive analysis could help in diagnosis of suppressed HPA-axis. Research questions: Primary objective: 1. How often do inhalation or nasal corticosteroids lead to suppression of the HPA- axis in HIV-treated patients? Secondary objectives: 2. Are other variables associated with the HPA-axis suppression? 3. Are cortisol measurements in hair as reliable as serum cortisol or an Adrenocorticotropic hormone (ACTH) stimulation test to diagnose suppression of the HPA axis? Study design: cross-sectional explorative study Study population: adults treated for HIV and using an inhalation or nasal corticosteroid. Intervention: an ACTH stimulation test, cortisol measurements in blood and hair. Main study parameters/endpoints: Proportions of persons with a low morning plasma cortisol or low cortisol after an ACTH stimulation test. Correlation between cortisol in plasma and hair cortisol. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Each person will be screened with a history and a short physical examination. A venous cannula will be inserted for obtaining blood for the plasma cortisol and for the ACTH stimulation test. An ACTH stimulation test has no major complications. A piece of hair is cut for cortisol hair analysis. The risks and burden are minimal, while the future benefits could be great since suppression of the endogenous HPA- axis can be associated with morbidities like hypertension or osteoporosis and can even lead to an adrenal crisis when the local corticosteroid is stopped.