New COVID booster vaccine tested as nasal spray and shot
NCT ID NCT07221162
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early-stage trial tests a new booster vaccine called Boost-2867 in 140 healthy adults who have already been vaccinated against COVID-19. The vaccine is given either as a shot with or without adjuvants (ingredients that boost immune response) or as a nasal spray without adjuvants. The main goals are to check safety and measure the immune response, including antibodies in the blood and nose.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Boost-2867 (a lab-made protein that mimics part of the COVID-19 virus spike, designed to boost immunity)
- What this could lead to
- If successful, this could provide a new booster option that may offer broader or longer-lasting protection against COVID-19 variants.
- What could go wrong
- This is an early Phase 1 trial with only 140 people, focused on safety and immune response. It is too soon to know if it will work better than existing boosters.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Center for Immunization Research, Johns Hopkins Bloomberg School Public Health
Baltimore, Maryland, 21205, United States
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Duke Vaccine and Trials Unit
Durham, North Carolina, 27703, United States
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Kaiser Permanente Washington Health Research Institute
Seattle, Washington, 98101-1466, United States
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Saint Louis University Center for Vaccine Development
St Louis, Missouri, 63104-1015, United States
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University of California San Francisco - Zuckerberg San Francisco General Hospital - Division of Human Immunodeficiency Virus, Infectious Disease, and Global Medicine
San Francisco, California, 94110, United States
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University of Pittsburgh - Medicine - Infectious Diseases
Pittsburgh, Pennsylvania, 15213, United States
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University of Rochester Medical Center - Vaccine Research Unit
Rochester, New York, 14642-0001, United States
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Vanderbilt University Medical Center
Nashville, Tennessee, 37232, United States
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