NCT07565064
ALPCO 25(OH) Vitamin D CLIA Kit - Fresh Versus Frozen Serum and Plasma Stability Study
Enrolling by Invitation
Not specifiedAges 22+ObservationalAmerican 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
Where it's being run
1 sites across 1 statesNew Hampshire1
Who to contact
This trial hasn't published a contact. View it on ClinicalTrials.gov
Do you actually qualify for this trial?
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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.