View clinical trials related to Hypoparathyroidism.
Filter by:Long-term conventional treatment of chronic hypoparathyroidism does not fully restore calcium homeostasis leading to increased morbidity, emergency events and reduced subjective health status. To further investigate general morbidity, hypocalcemic events, subjective and daily life performance in patients with chronic hypoparathyroidism a disease specific questionnaire, as well as the SF-36 are handed out.
Hypoparathyroidism is an endocrinopathy characterized by a deficient secretion or action of PTH associated with low calcium level. According to the European guideline (2015), standard treatment includes oral calcium salts and active vitamin D metabolites to relieve symptoms of hypocalcaemia, maintain serum calcium levels in the low normal range and improve the patient's QoL Calcium carbonate is most often used and less expensive than other calcium preparations and contains the highest concentration of elemental calcium per gram (42%). It requires gastric hydrochloric acid to form carbonic acid (H2CO3) that immediately decomposes into water (H2O) and carbon dioxide (CO2). CO2 is responsible for its side effects such as flatulence, constipation and general gastrointestinal disorders. Therefore, in some patients it is better to find an alternative to calcium carbonate. Calcium citrate should be recommended to patients with achlorhydria or on treatment with proton pump inhibitors (PPI) as well as to patients who preferred to take supplements outside mealtimes. furthermore, patients with hypoparathyroidism have an increased risk of kidney stones. Kidney stones are formed by calcium salts, among which the most frequent ones are calcium-oxalate (70-80%), followed by calcium-phosphate and uric acid. Citrate salts are widely used in the treatmentof nephrolithiasis, since have shown an inhibitory effect on kidney stone formation. Up to now, there are no studies aimed to investigate the efficacy of calcium citrate in the management of subjects with chronic hypoparathyroidism. In particular, we will investigate if calcium citrate compared to calcium carbonate does not affect the risk of renal stones, if it is able to maintain normal calcium levels and, if it has an impact on QOL, in subjects with chronic hypoparathyroidism.
Recombinant human parathyroid hormone, also known as if rhPTH(1-84), is a medicine to treat people with Hypothyroidism. The main aim of this study is to learn if rhPTH(1-84) can improve symptoms in adults with hypoparathyroidism. In this study, participants will receive 1 of 2 treatments: rhPTH(1-84) or a placebo. A placebo looks like the medicine being studied but does not have medicine in it. In this study, the placebo will be a standard treatment which is either active Vitamin D, or active Vitamin D with calcium. Active Vitamin D is a form of vitamin D that has a faster effect on the body. These treatments will be given as a daily injection just under the skin. Participants will not know which treatment they received, nor will their study doctors. This is to help make sure the results are more reliable. All participants will also take active vitamin D and calcium supplements during treatment. Participants will record their symptoms in a tool called the hypoparathyroidism symptom diary. This tool is used to assess symptoms and their impact and will give an overall score for each participant. The study doctors will also check for side effects from the study treatments. After treatment, researchers will check if there is any difference in the diary scores between the 2 treatment groups. A difference in score means there is a difference in symptoms and their impact. From this, researchers will learn if symptoms have improved for participants treated with rhPTH(1-84) compared with those treated with placebo.
The purpose of this study is to compare how rhPTH(1-84) affects the body between healthy adults of Japanese descent and matched, healthy Caucasian adults.
The main objective of this study is to establish an optimal threshold Early parathormon (PTH) assay in order to exclude hypoparathyroidism , that is to say to obtain a negative predictive value of hypoparathyroidism highest possible.
Chronic hypoparathyroidism is a life-long and irreversible disease for which the chronic administration of rhPTH(1-84) is a potential treatment option. The group of participants in the AAAE0544 core study has been taking rhPTH(1-84) for the treatment of hypoparathyroidism for up to 11 years. This study is designed to extend this experience and gain knowledge about how safe and effective rhPTH(1-84) is in participants with hypoparathyroidism over a long-term duration.
Hypoparathyroidism is a rare condition in which the parathyroid glands fail to produce sufficient amount of parathyroid hormone or the parathyroid hormone produced lacks biologic activity. The most common cause of hypoparathyroidism is damage to or removal of the parathyroid glands due to neck surgery for another condition. Occurrence of hypercalciuria under treatment is a frequent concern in primary hypoparathyroidism, limiting correction of hypocalcemia. Hypoparathyroidism can also be caused by an autoimmune process. In rare cases, hypoparathyroidism may occur as a genetic disorder inherited as an autosomal recessive, autosomal dominant or X-linked recessive trait. The autosomal dominant hypocalcemia (ADH) is mainly caused by heterozygous activating mutations in the CASR gene encoding CaSR). As other severe presentation of primary hypothyroidism, ADH is characterized by the increased risk to develop hypercalciuria and nephrolithiasis. The purpose of the study is to compare two therapeutic approaches in severe hypoparathyroidism in order to limit the risk of nephrocalcinosis and renal failure when attempting to correct hypocalcemia: rhPTH(1-34) vs association of active vitamin D and hydrochlorothiazide. The European Society of Endocrinology Clinical has indeed recently published guidelines for the treatment of chronic hypoparathyroidism in adults. These guidelines suggest considering treatment with a thiazide diuretic In a patient with hypercalciuria and replacement therapy with PTH in patients who do not stably and safely maintain their serum and urinary calcium in the target range.
This study is being conducted to characterize the effects of twice daily administration of rhPTH(1-84) on the way the body handles rhPTH(1-84) as well as its actions and safety and tolerability over the course of 24 hours as compared with the current once daily dosing regimen of marketed rhPTH(1-84) (marketed in the United States as Natpara® and in the EU as Natpar).
This is an observational, international, open label, pilot study to evaluate the safety, tolerability and efficacy of an oral PTH (1-34) preparation produced by Entera Bio in adult hypoparathyroid volunteers.
Primary objective: Phase I Proof of concept: treatment with smaller doses of elemental calcium from ACC compared to CCS can maintain target serum calcium (corrected for albumin) values (7.0-10.0 mg/dL). Phase II To test the hypothesis that treatment with smaller doses of elemental calcium from ACC compared to CCS can maintain target serum calcium (corrected for albumin) values (7.0-10.0 mg/dL). Secondary objectives: Phase I - ACC dose selection - to confirm the conversion factor of ACC from CCS - To determine the effect of food on ACC absorption Phase II - To test the hypothesis that treatment with smaller doses of elemental calcium from ACC compared to CCS will not cause an increase in hypercalciuria in patients with hypoparathyroidism - To test the hypothesis that smaller doses of elemental calcium from ACC can reduce the side effects related with high calcium consumption. Amorphical has a strong basis to believe that the ACC product is better absorbed compared to the commercially available CCS products and therefore, can maintain desirable target albumin corrected calcium values in serum (CA) with smaller doses of elemental calcium from ACC. As results, the burden of taking high doses of calcium supplementation along with the side effects of the standard therapy (gastrointestinal discomfort and hypercalciuria) will be reduced. Testing serum CA and urine calcium values in subjects with hypoparathyroidism may provide a straightforward method to test this hypothesis. The study is designed to be conducted with extra precaution in order to avoid disturbing the fragile balance between CA levels in serum and calcium levels urine. The crossover design of phase II of the study allows a more accurate and reliable comparison of results attributable to the specific treatment within the same individual. In addition, the subjects will continue consuming all their routine medication throughout the trial. The subjects in the control arm will consume their routine calcium supplement doses thus, will be treated with a standard of care.