Clinical trial Recruiting at 1 site Interventional Ages 60 and up

Immune Defense Protein's effect on cold and flu symptoms in older adults

Official title: A Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Impact of IDP® Supplement on Respiratory Immune Health Outcomes During Cold and Flu Season in Older Individuals

Run by Quantec Ltd · NCT07431840 · Data updated 2026-11-12

This project will test whether the IDP® supplement shortens and eases cold and flu symptoms in people aged 60 and older.

More Influenza trials

Quick facts

Study typeInterventional
Ages60 Years and up
SexAll
Enrollment300 (estimated)
SponsorQuantec Ltd
Industry-sponsored
Drugs / interventionsinfliximab, adalimumab, tofacitinib, chemotherapy, radiation, prednisone
Locations1 site (Los Angeles, California)
StatusRecruiting
StartedDecember 5, 2025
Main results expectedMay 19, 2026
Study endsJuly 31, 2026
Registry record updatedMarch 12, 2026
Trial IDNCT07431840 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 60 or older in the United States who commonly experience upper respiratory symptoms, can read English, use a smartphone, and are willing to try the IDP supplement and report symptoms via the Chloe app.

Probably not a fit

People who are immunocompromised or receiving chemotherapy/immunosuppressive therapy, those unable to use a smartphone or receive shipments in the U.S., or those under 60 are unlikely to benefit from or be eligible for this participant-driven program.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a consumer-driven, decentralized observational study that follows adults 60 and older who have chosen to try the IDP® supplement. Participants report symptoms, medication use, quality of life, and tolerability using surveys in the Chloe smartphone app while product is shipped to their home. The study compares self-reported duration and severity of upper respiratory symptoms across product groups (two IDP doses and a matching placebo) and tracks rescue medication use and daily activities. All data are collected remotely through participant-reported outcome measures completed at home.

Why it matters

Potential benefit: If successful, this could help older adults recover faster and have milder cold and flu symptoms, improving daily functioning and reducing the need for rescue medicines.

How similar studies have gone: Prior trials of over-the-counter immune supplements have produced mixed results, and there is limited published clinical evidence specifically for the IDP formulation in older adults.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age 60 years and older
2. Individuals who experience upper respiratory symptoms (e.g. coughing, sneezing, congestion) at least 2-3 times during the cold/flu season.
3. Able to read and understand English.
4. Able to read, understand, and provide informed consent.
5. Able to use a personal smartphone device and download Chloe by People Science.
6. Able to receive shipment of the product at an address within the United States.

Exclusion Criteria:

Any potential participants who:

1. Do not have a personal smartphone, internet access, or unwilling to download Chloe.
2. Already in an immunocompromised state, including:

   A. Infectious Causes
   * HIV/AIDS
   * Chronic hepatitis B or C (advanced stages)
   * Tuberculosis (especially disseminated or extrapulmonary TB) B. Cancer-Related
   * Leukemia (e.g., AML, ALL, CLL)
   * Lymphoma (e.g., Hodgkin's and Non-Hodgkin's)
   * Multiple Myeloma
   * Any metastatic cancer receiving chemotherapy

   C. Immunosuppressive Therapy:

   Participants on:
   * Corticosteroids (e.g., ≥20 mg/day of prednisone for ≥2 weeks)
   * Biologics (e.g., TNF inhibitors like infliximab, adalimumab)
   * Calcineurin inhibitors (e.g., tacrolimus, cyclosporine)
   * mTOR inhibitors (e.g., sirolimus)
   * JAK inhibitors (e.g., tofacitinib)
   * Chemotherapy or radiation therapy
   * Anti-rejection meds post-organ transplant D. Transplant Patients
   * Solid organ transplant (kidney, liver, heart, lung)
   * Hematopoietic stem cell transplant (HSCT) E. Autoimmune or Inflammatory Diseases (especially when treated with immunosuppressants)
   * Rheumatoid Arthritis
   * Systemic Lupus Erythematosus (SLE)
   * Psoriasis or Psoriatic Arthritis
   * Inflammatory Bowel Disease (Crohn's disease, Ulcerative colitis)
   * Multiple Sclerosis (especially on disease-modifying therapies)
3. Other Concomitant Conditions and Therapies:

   1. Any investigational therapies or treatments within 30 days prior to enrollment.
   2. Known diagnosis of Asthma and/or COPD
   3. Currently diagnosed with Alcohol Use Disorder and/or Substance Use Disorder
   4. Any underlying medical conditions or comorbidities that may confound the evaluation of the study outcomes
   5. Have a significant illness, disease or condition which, in the opinion of the principal investigator, may impact their ability to participate in the study or impact the study outcomes
4. Use of cannabis-containing products daily
5. Use of nicotine-containing products daily
6. Known hypersensitivity or previous allergic reaction to milk products, Sorbitol and/or tabletting aids.
7. Are unlikely for any reason to be able to comply with the trial or considered unsuited for participation in the study by the Principal Investigator.

Where it's running

  • People Science, Inc.
    Los Angeles, California, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.