NCT03605173

Brief Summary

According to the free hormone hypothesis, the biological activity of a hormone is carried by the portion that is not bound to protein or its carrier in circulation. Based on this, we believe that the free vitamin d, which is the proportion of Vitamin D unbound to vitamin D binding protein and albumin, performs the calcium-regulating functions of the vitamin. Hence, our objective is to study whether free vitamin correlated better with BMD and fracture than the total vitamin D.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
125

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2018

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

March 1, 2018

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

July 1, 2018

Completed
29 days until next milestone

First Posted

Study publicly available on registry

July 30, 2018

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2018

Completed
Last Updated

July 30, 2018

Status Verified

July 1, 2018

Enrollment Period

9 months

First QC Date

July 1, 2018

Last Update Submit

July 27, 2018

Conditions

Outcome Measures

Primary Outcomes (2)

  • Free vitamin D

    measured using free vitamin D Elisa kit

    ! day

  • Total vitamin D

    It is measured as a part of routine investigation at the time of admission

    ! day

Secondary Outcomes (2)

  • BMD

    ! day

  • Vertebral fracture

    ! day

Study Arms (2)

free vitamin d

EXPERIMENTAL

free vitamin is directly measured from blood serum using an ELISA kit

Diagnostic Test: free vitamin d test

total vitamin d

EXPERIMENTAL

Total vitamin d is measured routinely from blood serum

Diagnostic Test: total vitamin d

Interventions

free vitamin d testDIAGNOSTIC_TEST

using the patient's blood serum ELISA test for free vitamin d can be performed

free vitamin d
total vitamin dDIAGNOSTIC_TEST

routinely measured from serum

total vitamin d

Eligibility Criteria

Age48 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • patients with a diagnosis of osteoporosis and with or without fracture
  • post- menopausal women
  • age \> 48 years

You may not qualify if:

  • vitamin D supplementation in recent 6 months
  • patients on steroid
  • age \< 48 years
  • patients with chronic diseases such as liver cirrhosis, renal failure, hypertension, hyperparathyroidism

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Third affiliated hospital of sun yat sen university

Guangzhou, Guangdong, 510630, China

RECRUITING

Related Publications (1)

  • Chhantyal K, He L, Mo J, Yin M, He T, Chen Y, Yang Y, Zhang L, Rong L. Free vitamin D correlate better with bone mineral density and thoracolumbar junction osteoporotic vertebral fractures than serum vitamin D. BMC Musculoskelet Disord. 2020 Mar 12;21(1):164. doi: 10.1186/s12891-020-3179-7.

MeSH Terms

Conditions

Osteoporosis

Condition Hierarchy (Ancestors)

Bone Diseases, MetabolicBone DiseasesMusculoskeletal DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • Kishor Chhantyal, MBBS

    Third Affiliated Hospital, Sun Yat-Sen University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Li Min Rong, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
professor, department of spine surgery

Study Record Dates

First Submitted

July 1, 2018

First Posted

July 30, 2018

Study Start

March 1, 2018

Primary Completion

November 30, 2018

Study Completion

November 30, 2018

Last Updated

July 30, 2018

Record last verified: 2018-07

Locations