New HIV prevention shot gets a boost: enzyme may make injections last longer

NCT ID NCT05418868

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-stage study is testing a long-acting injectable HIV prevention drug called cabotegravir, combined with an enzyme (rHuPH20) that helps the drug spread under the skin. The goal is to see if this combination is safe and how the body processes it in 214 healthy adults. Researchers are also testing different doses and injection methods (under the skin or into muscle) to find the best approach for future studies.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

cabotegravir (an HIV drug) and recombinant human hyaluronidase PH20 (an enzyme that helps the drug spread under the skin)

What this could lead to

If successful, this could lead to a longer-lasting, easier-to-take injectable HIV prevention option, potentially reducing how often shots are needed.

What could go wrong

This is a very early (Phase 1) study in healthy volunteers, not people with HIV. It only tests safety and drug levels, not whether it prevents HIV. Many early-stage studies do not lead to approved treatments.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

HIV infectious disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • GSK Investigational Site

    COMPLETED

    Orlando, Florida, 32806, United States

  • GSK Investigational Site

    RECRUITING

    Las Vegas, Nevada, 89113, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • GSK Investigational Site

    RECRUITING

    Austin, Texas, 78744, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••