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Status unknownNCT01221896Updated Oct 15, 2010

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

An observational study in Hyperparathyroidism, sponsored by Hadassah Medical Organization. Status unknown at 1 site in Israel. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2010-10-15.

Sponsored by Hadassah Medical Organization · Observational

The sponsor has not verified this record recently (last verified Oct 2010), so the status shown — last known as Not yet recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
100
Ages
18 Years to 80 Years
Sex
All
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Study summary

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.

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Conditions studied

  • Hyperparathyroidism

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Keywords

  • Localization of a parathyroid adenoma in patients with primary hyperparathyroidism.
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In context

Hyperparathyroidism

305 studies on the registry are indexed under Hyperparathyroidism; 23 are open to participants now.

This study's planned enrollment of 100 is close to the median of 100 across 88 observational studies indexed under Hyperparathyroidism.

Browse Hyperparathyroidism studies →

Lead sponsor

Hadassah Medical Organization is the lead sponsor of 659 studies on the registry; 54 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients with elevated PTH in search of a PTA

Eligibility criteria

Inclusion Criteria:

  • Elevation of a calcium and parathyroid hormone in the serum
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
100 participants (estimated)

Groups and cohorts

  • Hyperparathyroidism

    Patients with hyperparathyroidism, prior to surgery.

    Procedure: C11-Choline PET/CT

Interventions

  • ProcedureC11-Choline PET/CT
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What researchers measure

Primary outcomes

  1. Improved localization of a parathyroid adenoma

Secondary outcomes

  1. Facilitation of detection of the parathyroid adenoma at surgery

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Study locations

1 site
  • Hadassah Hebrew University Medical Center
    Jerusalem, 91120, Israel
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 15, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01221896
Lead sponsor
Hadassah Medical Organization
First posted
Oct 15, 2010
Start date
Jan 2011
Primary completion
Jan 2014 (estimated)
Last update
Oct 15, 2010

Study contacts

Marina Orevi, MD
Contact
marinaor@hadassah.org.il
0508946211
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2010. You cannot join it, but the record below documents what was studied.

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