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Active clinical trials for "Pituitary Neoplasms"

Results 31-40 of 140

Modulating the GIP System in Patients With Acromegaly Due to a Pituitary Tumor

Acromegaly Due to Pituitary Adenoma

Modulation of the GIP System in Patients With Acromegaly Due to a Pituitary adenoma

Active2 enrollment criteria

SeOuL cOhort of Brain Tumor MONitoring Study (SOLOMON)

Brain TumorPrimary4 more

The registry of this study was subjected to patients who were radiologically diagnosed with a non-malignant brain tumor at Seoul National University Hospital since 2001, and who have had magnetic resonance (MR) re-examination after first MR exam or will be re-examined because it was determined that immediate treatment would not be needed at the first visit to the hospital. In all MRs taken by patients, the date of imaging and the volume of the tumor are measured, and we aim to establish a natural growth history for non-malignant brain tumors.

Recruiting15 enrollment criteria

A First in Human Study Using 89Zr-cRGDY Ultrasmall Silica Particle Tracers for Malignant Brain Tumors...

Brain CancerPituitary Adenoma

The purpose of this study is to test if PET scans using 89Zr-DFO-cRGDY-PEG-Cy5-C' dot particles, can be used to take pictures of brain tumors. The investigators want to understand how the particles are distributed and removed from the body, which may help others be treated in the future. This will be the first time that 89Zr-DFO-cRGDY-PEG-Cy5-C' dot particles are being used in people. The amount of particles given in this study is very small compared to the amount that was used in mice animal studies.

Active12 enrollment criteria

68-Ga DOTATATE PET/MRI in the Diagnosis and Management of Somatostatin Receptor Positive CNS Tumors....

CNS TumorsMeningioma5 more

The study population consists of patients who undergo resection for somatostatin receptor-positive (SSTR-positive) CNS tumors, focusing on meningioma, and including esthesioneuroblastoma, hemangioblastoma, medulloblastoma, paraganglioma, pituitary adenoma, and SSTR-positive systemic cancers metastatic to the brain, such as small cell carcinoma of the lung. The study indication is to determine the diagnostic utility of 68Ga-DOTATATE PET/MRI in the diagnosis and management of patients with SSTR-positive CNS tumors, specifically whether 68Ga-DOTATATE PET/MRI demonstrates utility distinguishing between tumor recurrence and post-treatment change. To date, the utility of Ga-68-DOTATATE PET/MRI in meningioma has not been explored. Investigators have over the past 3 months been able to accrue the largest case series of presently 12 patients in whom Ga-68-DOTATATE PET/MRI demonstrated utility in the assessment of meningioma, including assessment for postsurgical/postradiation recurrence, detection of additional lesions not visualized on MRI alone, and evaluation of osseous invasion. Based on this initial experience, investigators intend to study the impact of Ga-68-DOTATATE PET/MRI in the assessment of the extent of residual tumor in patients status post meningioma resection, specifically in patients in whom tumor location limits resectability, patients with World Health Organization (WHO) grade II/III disease, and patients with history of stereotactic radiosurgery (SRS) who develop postradiation change.

Recruiting7 enrollment criteria

Somatostatin Analogues in the Treatment of Relapsing GH Pituitary Adenomas After Surgery

Acromegaly

At present there are no recommendations regarding the possibility of discontinuing treatment in cases of recurrent acromegaly with good hormonal control. Discontinuation of treatment is therefore most often decided by the practitioner, on the basis of his experience and knowledge of the patient, the long-term course with somatostatin analogues being very little described. Thus, although hormonal control is achieved in a majority of cases under medical treatment, we do not know if it is possible to stop treatment and in this case how the pathology evolves. It would appear that approximately 40% of patients defined as very good responders to somatostatin analogues may gradually space their injections.

Recruiting10 enrollment criteria

Hyponatremia Study (Delayed Hyponatremia After Pituitary Surgery)

HyponatremiaHyponatremic3 more

Hyponatremia is defined as sodium below the normal range of 135-145. Symptomatically, it can cause patients to experience a wide range of symptoms including lethargy, headache, nausea, vomiting and in severe cases coma and even death. The goal of this study is to prospectively compare two approaches to the postoperative fluid management of patients undergoing transsphenoidal resection of a pituitary tumor or cyst to decrease the occurrence of postoperative delayed hyponatremia. One group will be placed on moderate fluid restriction and the other group will be placed on ad lib fluid intake.

Active8 enrollment criteria

Dissecting the Mechanism of DNA Methylation on the Invasiveness of Pituitary Tumors.

Pituitary Tumors

DNA methylation is one of the important ways of protein post-translational modification.Pituitary adenoma (PA) is a benign neuroendocrine tumor that originates from adenohypophysial 45 cells, and accounts for 10%-20% of all primary intracranial tumors. However some PAs can present with high invasiveness and irregular growth, which tend to compresses the optic chiasm and third ventricle, encase the internal carotid artery, and affect hormone secretion from the pituitary gland and hypothalamus. In this study we focus on the mechanism of DNA methylation on the invasiveness of pituitary tumors.

Recruiting2 enrollment criteria

Long-Term Longitudinal QoL in Patients Undergoing EEA

Pituitary TumorMeningioma6 more

This is a prospective longitudinal study to access postoperative 2-year quality of life in patients who undergo endonasal endoscopic approach surgeries of the skull base.

Recruiting6 enrollment criteria

Seoul National University Pituitary Disease Cohort Study

Pituitary DiseasePituitary Incidentaloma6 more

The purpose of this study is to investigate the treatment and natural history of pituitary disease. We have a longstanding interest in pituitary disease including acromegaly, central diabetes insipidus, and nonfunctioning pituitary adenoma. We will continue to follow patients and recruit new patients for treatment and follow-up. Blood and pituitary tumor tissue (when available through clinical care) will be saved for future analyses related to pituitary disease.

Recruiting4 enrollment criteria

Pituitary Tumor Surveillance: Pathogenic Correlation

Pituitary Tumor

The purpose of this study is to observe predictors of pituitary tumor recurrence and markers of persistent disease activity in patients harboring pituitary mass lesions of all types.

Recruiting2 enrollment criteria
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