Assess Vitamin D Levels in Those With & Without Thyroid Cancer

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: NCT00719615
Recruitment Status : Completed
First Posted : July 21, 2008
Results First Posted : March 30, 2010
Last Update Posted : June 3, 2015
Information provided by:
University of Nebraska

Study Type: Observational
Study Design: Observational Model: Case Control;   Time Perspective: Prospective
Condition: Thyroid Cancer

  Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Individuals (at University of Nebraska Medical Center)were selected from a thyroid tumor and cancer collaborative registry (TCCR), database & biospecimen bank, started March 2008. We achieved a sample size of 111 subjects with 24 patients with active thyroid cancer, 45 patients with thyroid cancer in remission and 42 patients with thyroid nodules.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
Individuals who had agreed to participate in the TCCR and who had also given a blood sample were included in sequential order.

Reporting Groups
Thyroid Nodules No text entered.
Thyroid Cancer in Remission No text entered.
Active Thyroid Cancer No text entered.

Participant Flow:   Overall Study
    Thyroid Nodules   Thyroid Cancer in Remission   Active Thyroid Cancer
STARTED   42   45   24 
COMPLETED   42   45   24 
NOT COMPLETED   0   0   0 

  Baseline Characteristics

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
Thyroid Nodules No text entered.
Thyroid Cancer in Remission No text entered.
Active Thyroid Cancer No text entered.
Total Total of all reporting groups

Baseline Measures
   Thyroid Nodules   Thyroid Cancer in Remission   Active Thyroid Cancer   Total 
Overall Participants Analyzed 
[Units: Participants]
 42   45   24   111 
[Units: Participants]
<=18 years   0   0   0   0 
Between 18 and 65 years   40   44   22   106 
>=65 years   2   1   2   5 
[Units: Participants]
Female   38   39   17   94 
Male   4   6   7   17 
Region of Enrollment 
[Units: Participants]
United States   42   45   24   111 

  Outcome Measures

1.  Primary:   Number of Persons That Are Vitamin D Deficient in the Thyroid Nodule, Thyroid Cancer in Remission, and the Active Thyroid Cancer Groups.   [ Time Frame: Within 12 months of enrollment in thyroid cancer collaborative registry (TCCR) database ]

  Serious Adverse Events

  Other Adverse Events

  Limitations and Caveats

Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
The trial limitations include that it was mostly done on Caucasian subjects; the controls were those with thyroid nodules not subjects without any thyroid disease; the sample size was small; & a small number of Vit D assays used different methods.

  More Information

Certain Agreements:  
All Principal Investigators ARE employed by the organization sponsoring the study.

Results Point of Contact:  
Name/Title: Whitney S Goldner, MD
Organization: University of Nebraska Medical Center
phone: 402-559-6205

National Cancer Institute 2006 Handbook, National Cancer Institute, Bethesda, MD.

Responsible Party: Whitney Goldner, MD, University of Nebraska Medical Center Identifier: NCT00719615     History of Changes
Other Study ID Numbers: 136-08-EP
First Submitted: July 17, 2008
First Posted: July 21, 2008
Results First Submitted: January 27, 2010
Results First Posted: March 30, 2010
Last Update Posted: June 3, 2015