Working… Menu

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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01106183
Recruitment Status : Completed
First Posted : April 19, 2010
Last Update Posted : November 16, 2011
Information provided by (Responsible Party):
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.

Condition or disease Intervention/treatment Phase
Upper Respiratory Tract Infections Due to Influenza or Rhinovirus Dietary Supplement: transfer factor Dietary Supplement: Placebo Not Applicable

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 49 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Prevention
Official Title: A Double Blind Study on the Efficacy of a Colostrum and Egg Yolk Supplement vs. Placebo to Reduce Frequency and Duration of Upper Respiratory Tract Infections in Healthy Adults
Study Start Date : January 2010
Actual Primary Completion Date : March 2010

Arm Intervention/treatment
Active Comparator: Transfer Factor
Transfer factor supplement; 2 capsules per day
Dietary Supplement: transfer factor
capsules, 2 per day by mouth for 7 weeks.

Placebo Comparator: Sugar pill Dietary Supplement: Placebo
cornstarch, 2 capsules per day by mouth.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years to 40 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

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.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01106183

Layout table for location information
United States, Utah
University of Utah
Salt Lake City, Utah, United States, 84112
Sponsors and Collaborators
University of Utah
Layout table for additonal information
Responsible Party: University of Utah Identifier: NCT01106183    
Other Study ID Numbers: 38766 4Life-Transfer Factor
First Posted: April 19, 2010    Key Record Dates
Last Update Posted: November 16, 2011
Last Verified: November 2011
Additional relevant MeSH terms:
Layout table for MeSH terms
Communicable Diseases
Respiratory Tract Infections
Respiratory Tract Diseases