Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01442701
Other study ID # 17756
Secondary ID
Status Completed
Phase
First received
Last updated
Start date November 17, 2011
Est. completion date December 1, 2019

Study information

Verified date March 2021
Source Stanford University
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The investigators intend to investigate whether the rise in childhood obesity is caused by the loss of recurrent and chronic infections in modern, industrialized society, beginning in utero and extending through early childhood. The investigators will also examine whether the antimicrobial triclosan, present in numerous cleaning and hygiene products, decreases the incidence of infection within a household.


Recruitment information / eligibility

Status Completed
Enrollment 361
Est. completion date December 1, 2019
Est. primary completion date December 1, 2019
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group 18 Years and older
Eligibility Inclusion Criteria: Subjects must meet all of the following inclusion criteria to participate in the study: 1. Able to provide written informed consent. 2. Able to communicate effectively in verbal English or Spanish. 3. Willing to provide blood, saliva, urine and stool specimens from herself, and willing to provide blood, saliva, urine and stool specimens from her infant. 4. Willing to provide consent for review of Primary Provider Medical Records regarding, for the mother, medical history and infectious and other conditions during pregnancy, and for the infant, Apgar scores, height and weight measurements at birth and over time, infectious and other disease diagnoses and treatment, and vaccination records. Exclusion Criteria: 1. More than one fetus. 2. High risk pregnancy. 3. Intent to move from the Bay Area within three years after enrollment. 4. History of diagnosis and/or treatment, and any current diagnosis or treatment, of type 1 diabetes or of major mental illness. 5. History of diagnosis and/or treatment, and any current diagnosis or treatment, of a thyroid disorder or other endocrine condition. 6. History of diagnosis and/or treatment, and any current diagnosis or treatment that has resulted in severe immunosuppression. 7. A household member who has a compromised immune system 8. Other conditions that in the opinion of the PI would make the subject an unacceptable candidate for this study.

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Removal of triclosan-containing cleaning products from household.
An intervention is nested within the observational cohort study as a secondary outcome. Commercially available household and personal cleaning products that either do not contain triclosan or that may contain triclosan will be delivered to the household every 4 months for the duration of the study. All cleaning products will be formulated, packaged and labeled by the original manufacturer with no modification for this study. Use of these products will be as per each individual product's label and at the discretion of the participant.

Locations

Country Name City State
United States Stanford University Stanford California

Sponsors (1)

Lead Sponsor Collaborator
Stanford University

Country where clinical trial is conducted

United States, 

References & Publications (2)

Ley C, Pischel L, Parsonnet J. Triclosan and triclocarban exposure and thyroid function during pregnancy-A randomized intervention. Reprod Toxicol. 2017 Dec;74:143-149. doi: 10.1016/j.reprotox.2017.09.005. Epub 2017 Sep 20. — View Citation

Ribado JV, Ley C, Haggerty TD, Tkachenko E, Bhatt AS, Parsonnet J. Household triclosan and triclocarban effects on the infant and maternal microbiome. EMBO Mol Med. 2017 Dec;9(12):1732-1741. doi: 10.15252/emmm.201707882. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Height-for-weight Z scores We will determine whether an association exists between height-for-weight Z-score (with adjustment for age and sex) and infectious disease load. Age 3 years
Secondary Cumulative sick-days In utero to 3 years of age