Tundra Space

Tundra Space

Clinical Research Directory

Browse clinical research sites, groups, and studies.

2 clinical studies listed.

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Vaccination Refusal

Tundra lists 2 Vaccination Refusal clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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COMPLETED

NCT05419232

COVID-19 Vaccine Uptake Trial

The goal of this study is to assess the best COVID-19 vaccine uptake strategy among students, staff and household members that have not been vaccinated. There is a multitude of recommendations present that highlight different vaccination strategy; however, it is still unclear which strategy is best to increase COVID-19 vaccination rates. We will compare the effectiveness and acceptance of two different communication strategies among unvaccinated students, staff, and their household members.

Gender: All

Updated: 2026-07-21

1 state

Vaccination Refusal
COVID-19
ACTIVE NOT RECRUITING

NCT04779827

Improving Health Equity for COVID-19 Vaccination for At-risk Populations Using Online Social Networks

Social technologies for health have already become essential means for providing underserved populations greater social connectedness and increased access to novel health information. However, these technologies have also had negative unintended consequences. The resulting digital divide in social technology takes many forms - from explicit racism that excludes African American and Latinx populations from the resources enjoyed by White and Asian members of online communities, to self-segregation for the purposes of identity preservation and community-building that unintentionally results in limited informational diversity in underserved communities. The result is an often unnoticed, but highly consequential compounding of inequities. This research seeks to use an online social network approach to address these challenges, in which the investigators demonstrate how reducing the online levels of network centralization and network homophily among African American community members directly increases their productive engagement with health-promoting information.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-19

1 state

Vaccination Refusal
Covid19
Heart Diseases