Completed NA INTERVENTIONAL 3-arm NCT01852903

Comparative Bioavailability of Two Forms of Vitamin C

A Randomized, Double-blind, Placebo-controlled Crossover Study Comparing the Bioavailability of Two Forms of Vitamin C in Plasma and Leukocytes Over 24 Hours.

Sponsor: KGK Science Inc.

Conditions Bioavailability

Interventions ascorbic acid calcium ascorbate placebo

Updated 5 times since 2017 Last updated: May 9, 2013 Started: May 31, 2011 Primary completion: Jul 31, 2011

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A NA clinical study on Bioavailability, this trial is completed. The trial is conducted by KGK Science Inc. and has accumulated 5 data snapshots since 2011. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

Change History

5 versions recorded

Sep 2024 — Present [monthly]

Completed NA
Jul 2024 — Sep 2024 [monthly]

Completed NA
Jan 2021 — Jul 2024 [monthly]

Completed NA
Sep 2018 — Jan 2021 [monthly]

Completed NA
Jan 2017 — Sep 2018 [monthly]

Completed NA

First recorded

May 2011

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

KGK Science Inc.
Moyad, Mark MD MPH
NBTY, Inc.

Data source: NBTY, Inc.

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• London, Canada