Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 2, 2026, 4:21 PM EDT

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Showing 1–1 of 1 matching trial from the live ClinicalTrials.gov search.
Conditions
Influenza, Infections, Pneumococcal
Interventions
Arm 1: E-portal message with IVR call, Arm 2: E-portal message with no IVR call, Arm 3: No e-portal message with IVR call, Arm 5: IVR call
Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
30,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Worcester, Massachusetts