Nasal immune cell spray tested in women for first time
NCT ID NCT06699758
First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This early-stage trial tested whether a nasal spray containing memory T cells from male donors is safe for healthy women aged 18–55. Nine participants received the spray and were monitored for side effects. The goal was to find the highest safe dose, not to treat any disease.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- memory T lymphocytes from male donors
- What this could lead to
- If safe, this could open the door to using nasal T cell treatments for immune-related conditions.
- What could go wrong
- This is a very early, small trial (9 people) focused only on safety, not effectiveness. It may not lead to any treatment.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Hospital Universitario La Paz
Madrid, Madrid, 28046, Spain