- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00029952
Long Term Post Operative Follow-Up of Cushing Syndrome
Long-Term Post-Operative Follow-Up of Cushing Syndrome
Although most patients with hypercortisolism can be diagnosed and treated the long-term effects of hypercortisolism and its treatment are unknown. This study will attempt to answer the following questions:
- What is the rate of perioperative complications? Patients with Cushing syndrome often undergo transsphenoidal surgery of the pituitary gland as treatment for the disease. During this surgical procedure the pituitary gland is reached by passing through the sphenoid bone. The risk for patients to develop hypopituitarism in the immediate postoperative period is unknown. Patients with Cushing syndrome have abnormal levels of hormones circulating in the blood and affects of the surgery are often not apparent until long after the procedure.
- What is the recurrence rate? The recurrence rate of the disease has been estimated between 5 - 10%. However, these figures have not been confirmed. If the actual rate of recurrence is higher than estimated many patients may elect to undergo radiation therapy which has a lower rate of recurrence.
- Do any factors in the immediate postoperative period predict who will experience a recurrence of Cushing syndrome?
- What are the long-term complications of hypercortisolism? Studies have shown that patients with hypercortisolism have a four times greater risk of death than people of the same age without hypercortisolism. Researchers tend to believe this figure is too high. However, it is well established that hypercortisolism weakens bones (decreased bone density), causes secondary hypogonadism, increases levels of fat in the blood (hyperlipidemia), and decreases thyroid function (hypothyroidism). The potential for these conditions to be reversed is not known.
These questions will be addressed by blood and urine sampling in the postoperative period, and by outpatient follow-up and periodic questionnaires in the first 10 years after curative surgery for Cushing syndrome performed at the NIH.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment
Contacts and Locations
Study Locations
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Maryland
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Bethesda, Maryland, United States, 20892
- National Institute of Child Health and Human Development (NICHD)
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Description
INCLUSION CRITERIA:
Patients with Cushing syndrome documented at the NIH will be recruited into this protocol prior to surgery intended to cure Cushing syndrome selectively. Thus, patients undergoing transsphenoidal exploration for resection of an adenoma, or unilateral adrenalectomy for an adenoma, or resection of a tumor producing ACTH ectopically will be candidates for this study. We will also recruit as many of the 500 patients treated since 1983 as possible, so as to have a group of "late follow-up" patients. These individuals will participate primarily by questionnaire.
Hematocrit about 30%. A CBC will be obtained prior to entering the study. Patients with hematocrit above 30% will be accepted into the study; iron replacement will be given to those patients with low TIBC.
Ages 18 - 85. Children less than 18 are being studied under other protocols and the questionnaire has not been validated for younger individuals.
For the questionnaire portion of the protocol there is an additional inclusion criterion:
Patients must be able to read and write in English.
EXCLUSION CRITERIA:
There are no formal exclusion criteria, if the patient meets the inclusion criteria above. All ethnic groups and both genders will be recruited. However, patients may be withdrawn from the study by the PI if they are unable to meet study requirments, such as mailing questionnaires.
Study Plan
How is the study designed?
Collaborators and Investigators
Publications and helpful links
General Publications
- Wu AW, Hays RD, Kelly S, Malitz F, Bozzette SA. Applications of the Medical Outcomes Study health-related quality of life measures in HIV/AIDS. Qual Life Res. 1997 Aug;6(6):531-54. doi: 10.1023/a:1018460132567.
- Ross EJ, Linch DC. Cushing's syndrome--killing disease: discriminatory value of signs and symptoms aiding early diagnosis. Lancet. 1982 Sep 18;2(8299):646-9. doi: 10.1016/s0140-6736(82)92749-0. No abstract available.
- Tarlov AR, Ware JE Jr, Greenfield S, Nelson EC, Perrin E, Zubkoff M. The Medical Outcomes Study. An application of methods for monitoring the results of medical care. JAMA. 1989 Aug 18;262(7):925-30. doi: 10.1001/jama.262.7.925.
Study record dates
Study Major Dates
Study Start
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 930169
- 93-CH-0169
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Cushing Syndrome
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Centre hospitalier de l'Université de Montréal...Recordati Rare DiseasesActive, not recruitingEndogenous Cushing SyndromeCanada
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Sparrow PharmaceuticalsRecruitingAutonomous Cortisol Secretion (ACS) | ACTH-Independent Cushing Syndrome | ACTH-Independent Adrenal Cushing Syndrome, SomaticUnited States, United Kingdom, France, Romania
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University of LeedsCompletedAdrenal; Insufficiency Gluccorticoid-Induced | Cushing; Syndrome or Disease, Glucocorticoid-Induced
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National Cancer Institute (NCI)Not yet recruitingHyperaldosteronism | Hypercortisolism | Cushing s SyndromeUnited States
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Assistance Publique - Hôpitaux de ParisCompletedCushing Syndrome Related to Cortisolic AdenomaFrance
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HRA PharmaRecruitingCushing SyndromeSweden, France, Croatia, Spain
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RECORDATI GROUPActive, not recruitingCushing's SyndromeUnited States, Argentina, Austria, Belgium, Brazil, Bulgaria, Canada, China, Costa Rica, France, Germany, India, Italy, Japan, Korea, Republic of, Poland, Russian Federation, Spain, Thailand, Turkey
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Eunice Kennedy Shriver National Institute of Child...Completed
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Corcept TherapeuticsCompletedCushing's SyndromeUnited States
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HRA PharmaCompletedCushing's SyndromeGermany, Belgium, Italy, Hungary, Poland, Romania, Spain, Turkey