Clinical trialNCT01860378CompletedEarly phase 1Interventional

Vouchers to Promote Tdap Vaccination

SponsorChildren's Hospital of PhiladelphiaEnrollment149Whooping Cough

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This study is a small-scale randomized, placebo-controlled factorial trial of two interventions to increase Tetanus, diphtheria and acellular pertussis (Tdap) immunization rates among infant caregivers. Specifically, the trial will compare a full cost vs. $5 Tdap voucher with or without an educational video.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Kristen A Feemster, M.D.
Children's Hospital of Philadelphia
Principal Investigator
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Karabots Primary Care Center - the Children'S Hospital of Philadelphia
Philadelphia, Pennsylvania, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study. It may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Jul 2013
Primary completion: 31 Mar 2014
Completion: 31 Mar 2015
Last update posted: 3 Apr 2015
Registered enrollment: 149
Registry id: NCT01860378

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.