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NCT07565064

ALPCO 25(OH) Vitamin D CLIA Kit - Fresh Versus Frozen Serum and Plasma Stability Study

Enrolling by Invitation
Not specifiedAges 22+Observational
American Laboratory Products Company
~80 participants
Updated 2026-05-04 on ClinicalTrials.gov
What's tested:ALPCO 25(OH) Vitamin D CLIA Kit

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Equivalence of 25-hydroxyvitamin D [25(OH)D] measurements between fresh and stored specimens
Measured over Up to 6 months

Conditions

Vitamin D Deficiency
Vitamin D Insufficiency
Healthy Volunteers

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NCT07565064

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • ALPCO

    Salem, New Hampshireno site contact published

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

Who to contact

This trial hasn't published a contact. View it on ClinicalTrials.gov

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Eligibility criteria

Inclusion

Male or female adults 22 years of age or older
Able and willing to provide a blood sample in accordance with the protocol
Able to understand the study requirements and provide written informed consent

Exclusion

Unable or unwilling to provide a blood sample
Current participation in another investigational study that may interfere with study results
Any condition that, in the opinion of the investigator, would preclude safe participation or compromise the integrity of the study

What this trial measures

  • Equivalence of 25-hydroxyvitamin D [25(OH)D] measurements between fresh and stored specimensUp to 6 months

    Assessment of agreement between 25(OH)D concentrations measured in fresh serum and plasma specimens and those measured after storage under predefined temperature and time conditions, using the ALPCO 25(OH) Vitamin D CLIA Kit. Stability will be evaluated using percent difference, mean bias, and variability across time points.