View clinical trials related to Pituitary Diseases.
Filter by:Recent studies estimate that the prevalence of pituitary adenomas is approximately 1/1500 persons. Pituitary tumours are usually considered as benign. However, local invasion is reported in 35-40% of pituitary adenomas; resistance to medical treatment or recurrence leading to multimodal therapy is reported in about 15% of cases. These tumours are considered as aggressive pituitary tumours and present a distinct biological and clinical entity with continued growth despite multimodal therapy, including surgery and radiotherapy (McCormack et al., 2011). Whilst these tumours have malignant potential, the term of pituitary carcinoma is strictly reserved for those rare tumours (0.2%) with demonstrated craniospinal or systemic metastases (Heaney, 2011). Pituitary aggressive and malignant tumours are very difficult to control and ultimately prove to be lethal. It was suggested that early aggressive treatments (chemotherapy, radiotherapy) may control progression and occurrence of metastases. However, these therapeutic options are associated with important side effects limiting their use and the prediction of pituitary tumor behaviour remains a challenge. At the diagnosis, clinical signs are not specific and the results concerning proliferative factors (Ki-67 and P53), putative oncogenes (PTTG) conflict from one series to another. In a case-control retrospective study of a cohort of 410 patients (HYPOPRONOS), we validated a prognostic pathological classification based on histological and radiological data (J. Trouillas 2012 in preparation). Tumours were classified into 3 grades: grade 1= non-invasive tumour, grade 2= invasive tumour and grade 3 = aggressive-invasive tumor with the combination of radiological signs of invasion and 2 of 3 signs of increased proliferation (Ki-67 index>3%, number of mitoses>2 per 10 fields at 400X, P53 nuclear detection). It is now widely accepted that cancer is a clonal disease, which arises from a single normal cell and progresses thanks to the accumulation of DNA alterations (Sanson et al., 2011). To identify the role of these DNA alterations, we conducted array CGH analysis limited to 13 prolactin pituitary tumours, from frozen fragments, and identified allelic loss of chromosome 11 associated with aggressiveness and malignancy (Wierinckx et al., 2011). To confirm these encouraging results we propose to conduct a study on a large series of tumours, fixed and embed, and to be correlated the results to clinical data.
The purpose of this study is to allow continued use of pasireotide in patients who are on pasireotide treatment in a Novartis-sponsored study and are benefiting from the treatment as judged by the investigator.
The purpose of this research study is to determine the utility of educational materials designed to inform patients of their pituitary condition, in an effort to assist the patients, families, and staff deal with pituitary tumours and related conditions in the best way possible. We have developed a website, informational videos, and a brochure for pituitary tumour patients and their families. The primary outcome measures will be 1) the level of knowledge that patients have of their condition before and after reviewing the materials provided; and 2) ease of use and user satisfaction of the materials. We hypothesize that our informative multimedia educational package will not only improve the health literacy and self-efficacy of patients and their families, but will also improve quality of care.
Many types of cancers overexpress a receptor for the vitamin folate (Folate Receptor). This Phase 2 study will utilize a standard imaging radionuclide, technetium-99m, conjugated to a ligand (EC20) designed to bind to the folate receptor. The study is designed as an open-label, baseline-controlled study.
The purpose of this study is to determine if there is a significant difference in sinonasal disease specific quality of life and utility scores between patients undergoing the posterior septectomy or Stamm approach during endoscopic pituitary adenoma resection.
Background: Endoscopic third ventriculostomy (ETV) is a standard procedure for the treatment of obstructive hydrocephalus in children and adults. Perforation of the third ventricle floor which is part of the hypothalamic-pituitary neuronal network is the key of this surgical procedure. Purpose: There are no prospective data available about the endocrine effects after ETV in children and adults. The principal aim of this prospective study is to evaluate the variability of hypothalamic-pituitary hormones and clinical effects in children and adults after ETV in order to plan a multicentric study.
To evaluate efficacy, safety, pharmacokinetics and pharmacodynamics of pasireotide LAR in Japanese patients with active acromegaly or pituitary gigantism. Primary objective was to assess the total-group efficacy of pasireotide LAR on the reduction of mean GH levels to < 2.5 µg/L and the normalization of insulin-like growth factor-1 (IGF-1) at 3 months of study treatment.
This is an open-label, parallel-group, randomized, multicenter Phase III trial to compare the efficacy and safety of a single 250 microgram (mcg) subcutaneous dose of MSJ-0011 to a single 5,000 international units (IU) intramuscular dose of urinary human chorionic gonadotropin (hCG) in inducing ovulation in Japanese women diagnosed with anovulation or oligo-ovulation. Ovulation induction therapy will be undertaken with follitropin alfa. The primary objective is to show that MSJ-0011 is non-inferior to urinary hCG, as assessed by the ovulation rate.
There are no available medical treatment options for patients with non-functioning pituitary adenomas (NFPA) or with resistant prolactinomas to dopamine agonists (DA) who are not cured by surgery. The study of the receptors by quantitative mRNA expression levels and immunohistochemistry analysis might end with a better understanding of these tumors. Besides that, it will be assessed the in vitro and in vivo responses to pasireotide (for NFPA and prolactinomas) and cabergoline (for NFPA). These responses will be compared with the receptor expressions which may be a tool as a predicting element of the response to these compounds.
The purpose of the study is to evaluate the Calcium homeostasis in adult patients with uncontrolled acromegaly. The measurements will be repeated 3-6 months after the treatment of acromegaly (surgical or medical). The control group consists of patients with nonfunctioning pituitary tumors who will undergo surgical removal.