NCT00755105

Brief Summary

This is an observation study of subjects who previously had iron-55 isotope administered in studies of iron absorption. By determining the retention of the isotope in blood during a 3-year period, body iron excretion can be measured.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
77

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Sep 1998

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 1998

Completed
7.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2005

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2005

Completed
2.8 years until next milestone

First Submitted

Initial submission to the registry

September 16, 2008

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 18, 2008

Completed
7 months until next milestone

Results Posted

Study results publicly available

April 9, 2009

Completed
Last Updated

July 2, 2018

Status Verified

May 1, 2018

Enrollment Period

7.3 years

First QC Date

September 16, 2008

Results QC Date

December 30, 2008

Last Update Submit

May 24, 2018

Conditions

Healthy

Keywords

body iron excretionIron isotopes

Outcome Measures

Primary Outcomes (1)

  • Rate of Iron Excretion.

    Iron excretion calculated as body Fe (mg) times turnover rate estimated from blood activity of Fe55

    4 years

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Healthy adult men and women who previously participated in iron absorption studies using iron-55 isotope.

You may qualify if:

  • Must have taken iron-55 in previous study conducted by USDA Grand Forks Human Nutrition Research Center

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

USDA Grand Forks Human Nutrition Research Center

Grand Forks, North Dakota, 58202, United States

Location

Related Publications (1)

  • Hunt JR, Zito CA, Johnson LK. Body iron excretion by healthy men and women. Am J Clin Nutr. 2009 Jun;89(6):1792-8. doi: 10.3945/ajcn.2009.27439. Epub 2009 Apr 22.

    PMID: 19386738DERIVED

Results Point of Contact

Title
Janet Hunt, PhD
Organization
USDA Grand Forks Human Nutrition Research Center
janetrhunt@gmail.com
701-795-8353

Study Officials

  • Janet R Hunt

    USDA Grand Forks Human Nutrition Research Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 16, 2008

First Posted

September 18, 2008

Study Start

September 1, 1998

Primary Completion

December 1, 2005

Study Completion

December 1, 2005

Last Updated

July 2, 2018

Results First Posted

April 9, 2009

Record last verified: 2018-05

Locations

US(1)