New HIV pill STP0404 shows promise in small trial

NCT ID NCT05869643

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 2a trial tested a new experimental drug called STP0404 (Pirmitegravir) in 25 adults with HIV-1 who had never taken HIV medications before. Participants received either a low, medium, or high dose of STP0404 or a placebo once daily for 10 days. The study measured how well the drug lowered the amount of virus in the blood and checked for any side effects. The goal is to see if STP0404 can be a safe and effective new option for controlling HIV.

What this could mean

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

Active substance

STP0404 (Pirmitegravir)

What this could lead to

If successful, this could lead to a new daily pill to control HIV-1, offering another treatment option for people living with HIV.

What could go wrong

This is a small, early-phase trial (25 people) testing short-term effects over 10 days. It may not show strong enough antiviral activity or could have side effects. Larger studies are needed to confirm safety and effectiveness.

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

Locations

  • Atrium Health Wake Forest Baptist Medical Center - PPDS

    Winston-Salem, North Carolina, 27157, United States

  • Be Well Medical Center

    Berkley, Michigan, 48072, United States

  • Kaiser Permenente Los Angeles Medical Center

    Los Angeles, California, 90027, United States

  • Midway Immunology and Research Center

    Ft. Pierce, Florida, 34982, United States

  • North Shore University Hospital

    Manhasset, New York, 11030-3816, United States

  • North Texas Infectious Diseases Consultants, P.A.

    Dallas, Texas, 75246, United States

  • Orlando Immunology Center

    Orlando, Florida, 32803, United States

  • Ruane Clinical Research, Inc.

    Los Angeles, California, 90036, United States

  • Saint Michael's Medical Center

    Newark, New Jersey, 07102, United States

  • Schiff Center for Liver Diseases/University of Miami

    Miami, Florida, 33136-2107, United States

  • South Jersey Infectious Disease

    Somers Point, New Jersey, 08244, United States

  • St Hope Foundation, Inc

    Bellaire, Texas, 77401, United States

  • USF Health South Tampa Center for Advanced Healthcare

    Tampa, Florida, 33602-3511, United States