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Calcium Homeostasis in Acromegaly: Effect of Surgical/Medical Treatment and Comparison With Nonfunctioning Pituitary Tumors

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01568359
Recruitment Status : Completed
First Posted : April 2, 2012
Last Update Posted : December 5, 2014
Information provided by (Responsible Party):
Adriana Ioachimescu, MD, PhD, Emory University

Brief Summary:
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.

Condition or disease
Acromegaly Nonfunctioning Pituitary Tumor

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Study Type : Observational
Actual Enrollment : 49 participants
Observational Model: Case-Control
Time Perspective: Prospective
Official Title: Calcium Homeostasis in Acromegaly: Effect of Surgical/Medical Treatment and Comparison With Nonfunctioning Pituitary Tumors.
Study Start Date : December 2011
Actual Primary Completion Date : August 2014
Actual Study Completion Date : August 2014

Group 1 - Acromegaly, Group 2 - control
Group 1 - Acromegaly patients, Group 2 - Nonfunctioning pituitary adenoma patients (control)

Primary Outcome Measures :
  1. Calcitriol/PTH [ Time Frame: Baseline and 3-6 months after trreatment of pituitary condition ]

    To describe baseline calcitriol/PTH status in patients with uncontrolled acromegaly, with subanalyses based on presence of hyperprolactinemia.

    To assess the change in calcitriol/PTH levels after treatment with acromegaly, with subanalyses based on type of therapy (surgical or medical).

    To evaluate the calcium and calcitriol/PTH levels in patients with acromegaly compared to patients with nonfunctioning pituitary adenomas, with subanalyses based on presence of hyperprolactinemia in either group.

Biospecimen Retention:   Samples Without DNA
Blood and urine samples obtained from subjects.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with uncontrolled acromegaly and nonfunctioning pituitary adenomas presenting to the Emory University Pituitary Center for medical or surgical treatment.

Inclusion Criteria:

  • Patients diagnosed with acromegaly or a nonfunctioning pituitary who will receive treatment for the pituitary condition.
  • Study subjects must agree to participate in this study and provide written consent.
  • Site- Emory Clinic/Emory University hospital.
  • Stage of Disease: Patients with active acromegaly that is either newly diagnosed or uncontrolled on current therapy (as shown by GH/IGF-1 levels). Patients with nonfunctioning pituitary adenoma in whom surgical intervention planned based on current guidelines will serve as a control group.
  • Age: Study subjects must be over 18 years of age.

Exclusion Criteria:

  • Age < 18 years old
  • Prior other diseases: Patients chronic renal disease stage 3 or worse (estimated GFR > 60).

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01568359

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United States, Georgia
Emory Clinic
Atlanta, Georgia, United States, 30322
Emory University Hospital
Atlanta, Georgia, United States, 30322
Sponsors and Collaborators
Emory University
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Principal Investigator: Adriana Ioachimescu, MD, PhD Asst Professor

Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Adriana Ioachimescu, MD, PhD, Associate Professor, Emory University Identifier: NCT01568359    
Other Study ID Numbers: IRB00046786
First Posted: April 2, 2012    Key Record Dates
Last Update Posted: December 5, 2014
Last Verified: December 2014
Additional relevant MeSH terms:
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Pituitary Neoplasms
Pituitary Diseases
Hypothalamic Diseases
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Endocrine System Diseases
Bone Diseases, Endocrine
Bone Diseases
Musculoskeletal Diseases
Endocrine Gland Neoplasms
Neoplasms by Site
Hypothalamic Neoplasms
Supratentorial Neoplasms
Brain Neoplasms
Central Nervous System Neoplasms
Nervous System Neoplasms