Can a daily supplement shorten your cold? new study in seniors aims to find out

NCT ID NCT07431840

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether a dietary supplement called IDP (Immune Defense Protein) can reduce the length and severity of cold and flu symptoms in people aged 60 and older. About 300 participants will take either a low or high dose of IDP or a placebo daily during cold and flu season. They will report their symptoms at home using a smartphone app, so no clinic visits are needed.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

IDP (Immune Defense Protein) dietary supplement

What this could lead to

If it works, this could provide a simple, over-the-counter supplement to help older adults have milder and shorter colds or flu.

What could go wrong

This is an early-stage, consumer-driven study with self-reported data, so results may be less reliable. Supplements often show limited benefit in rigorous trials.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for INFLUENZA are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

common cold influenza pneumonia Respiration Disorders upper respiratory tract disorder viral respiratory tract infection

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • People Science, Inc.

    RECRUITING

    Los Angeles, California, 90045, United States

    Contact Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••