Completed NA INTERVENTIONAL 2-arm NCT01873820

Tolerance of Two Forms of Vitamin C in Acid-sensitive Adults

A Randomized, Double-blind, Crossover Study Comparing the Tolerance of Two Forms of Vitamin C in Acid Sensitive Adults

Sponsor: KGK Science Inc.

Conditions Tolerance

Interventions Ascorbic acid Calcium ascorbate

Updated 6 times since 2017 Last updated: Jun 6, 2013 Started: Mar 31, 2008 Primary completion: Jun 30, 2008

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

Listed as NCT01873820, this NA trial focuses on Tolerance and remains completed. Sponsored by KGK Science Inc., it has been updated 6 times since 2008, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

Change History

6 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
Jun 2018 — Sep 2018 [monthly]

Completed NA

▶ Show 1 earlier version

Jan 2017 — Jun 2018 [monthly]

Completed NA

First recorded

Mar 2008

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