Apply to trial NCT06821100

A few quick questions so the study team can decide if you might be a fit.

RecruitingPhase 1Drug trial

Thymalfasin (Thymosin Alpha 1; Ta1) as an Enhancer of Vaccine Response Among Older Adults Receiving Booster Doses of COVID-19 Vaccine

The goal of this research is to learn more about ZADAXIN® (trade name; thymalfasin generic; Ta1 for short) and determine if Ta1 has any benefit in increasing the immune response to the COVID-19 vaccine. Ta1 has been shown to stimulate the immune system to fight infections. This research study will test the safety and possible harms of Ta1 when it is given to people at different dose levels before COVID-19 vaccination.

How this works

  1. Answer a few questions

    About 5 to 10 minutes. Skip-friendly where possible.

  2. We forward your profile to the study team

    We send your contact details and a short fit summary to the official trial contacts, with you copied.

  3. The team reaches out to schedule screening

    Usually within a few business days, via the contact you give.

We save your progress under this email and copy you when we send your application to the study team.

By clicking Start, you agree to our terms of service, including sharing your contact details and fit summary with official trial contacts if you submit.