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Input of C11-Choline PET/CT in Localization of Parathyroid Adenoma

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified October 2010 by Hadassah Medical Organization.
Recruitment status was:  Not yet recruiting
Information provided by:
Hadassah Medical Organization Identifier:
First received: October 14, 2010
Last updated: NA
Last verified: October 2010
History: No changes posted

The purpose of the study is to determine a possible input of C11-Choline PET/CT in identification and localization of a parathyroid adenoma (PTA).

Preoperative localization of a PTA has been previously documented in multiple series, and is usually based on scintigraphy and on US.

Currently, the conventional technique for localization of a PTA is a dual-isotope scan with Tc99m-MIBI and Tc99m pertechnetate. This study is acquired over at least 3 hours, includes two i.v. injections and the patient has to stay 15-30 min per acquisition under the camera.

In addition, there is no anatomical imaging and further correlation with US is usually recommended.

In contrast, PET/CT study with C11-Choline takes as long as 10 min., includes one injection, and provides data of higher resolution of functional (PET) and anatomical imaging (CT).

Furthermore, dosimetric data shows that the total effective dose from Tc99mMIBI and Tc99m pertechnetate injection is (without CT): 0.5957 rem; and from C11-Choline injection and CT of a chest is: 0.3128 - 0.8628rem.

Condition Intervention
Hyperparathyroidism Procedure: C11-Choline PET/CT

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective

Resource links provided by NLM:

Further study details as provided by Hadassah Medical Organization:

Primary Outcome Measures:
  • Improved localization of a parathyroid adenoma

Secondary Outcome Measures:
  • Facilitation of detection of the parathyroid adenoma at surgery

Estimated Enrollment: 100
Study Start Date: January 2011
Estimated Primary Completion Date: January 2014 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Patients with hyperparathyroidism, prior to surgery.
Procedure: C11-Choline PET/CT


Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with elevated PTH in search of a PTA

Inclusion Criteria:

  • Elevation of a calcium and parathyroid hormone in the serum
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01221896

Contact: Marina Orevi, MD 0508946211

Hadassah Hebrew University Medical Center Not yet recruiting
Jerusalem, Israel, 91120
Contact: Marina Orevi, MD    0508946211   
Sponsors and Collaborators
Hadassah Medical Organization
  More Information Identifier: NCT01221896     History of Changes
Other Study ID Numbers: choline2010-HMO-CTIL
Study First Received: October 14, 2010
Last Updated: October 14, 2010

Keywords provided by Hadassah Medical Organization:
Localization of a parathyroid adenoma in patients with primary hyperparathyroidism.

Additional relevant MeSH terms:
Parathyroid Neoplasms
Parathyroid Diseases
Endocrine System Diseases
Endocrine Gland Neoplasms
Neoplasms by Site
Head and Neck Neoplasms
Lipotropic Agents
Hypolipidemic Agents
Molecular Mechanisms of Pharmacological Action
Gastrointestinal Agents
Lipid Regulating Agents
Nootropic Agents processed this record on September 19, 2017