Efficacy of Transfer Factor to Prevent Upper Respiratory Tract Infections in Healthy Adults

Not Applicable

Completed

• Conditions: Upper Respiratory Tract Infections Due to Influenza or Rhinovirus
• Interventions: Dietary Supplement: transfer factor; Dietary Supplement: Placebo

• Registration Number: NCT01106183
• Lead Sponsor: University of Utah

Brief Summary

The goals of our study are to critically evaluate if a healthy population supplemented with Transfer factor experiences fewer incidences of colds and flu, or experience shorter duration of illness compared to an identical population taking placebo. In this study we will give either Transfer factor or a placebo to two groups of healthy adult men and women for a period of 7 weeks in a double-blind experimental design. The frequency and duration of colds and flu-like symptoms will be recorded during the course of the study. Saliva samples will be collected weekly and assessed for salivary IgA secretion rate. Data from this study will establish the efficacy of Transfer Factor to support a healthy immune system.

Detailed Description

Not available

Study Timeline

• Study Start: 2010-01
• Primary Completion: 2010-03
• Study Completion: 2010-03
• Study First Submitted: 2010-04-15
• Study First Submitted QC: 2010-04-15
• Study First Posted: 2010-04-19
• Status Verified: 2011-11
• Last Update Submitted: 2025-03-20
• Last Update Posted: 2025-03-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 49

Inclusion Criteria

• Males and females (18 - 40) who are in good health

Exclusion Criteria

• Subjects who are allergic to eggs (on which the supplement is based). If a volunteer is not sure if they are allergic to eggs or milk. Those who are currently smoking, have cardiovascular disease, cancer, diabetes, liver disease, renal insufficiency, any chronic disease that might interfere with study participation, BMI above 40 kg/m2, consumption of >12 alcoholic drinks weekly, or unwillingness to stop current supplement intake. Women who are pregnant or lactating will also be excluded from the study.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Transfer Factor	transfer factor	Transfer factor supplement; 2 capsules per day
Sugar pill	Placebo	-

Trial Locations

Locations (1)

University of Utah; 🇺🇸 Salt Lake City, Utah, United States