New peanut allergy vaccine enters human testing – could it end the danger?
NCT ID NCT05476497
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage trial tests a new vaccine called VLP Peanut in 46 healthy adults and people with peanut allergy. The goal is to see if it is safe and tolerable, and to get an early look at whether it might reduce allergic reactions. Participants receive injections of the vaccine or a placebo, and researchers monitor side effects and immune responses.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- VLP Peanut (a virus-like particle vaccine designed to desensitize the immune system to peanut proteins)
- What this could lead to
- If successful, this could lead to a treatment that reduces or eliminates severe allergic reactions to peanuts, allowing patients to tolerate accidental exposure.
- What could go wrong
- This is an early Phase 1 trial with only 46 participants, focused on safety. The vaccine may cause allergic reactions or prove ineffective in larger studies.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 46 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2022
- Expected to finish
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Nov 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 50 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Part A Main Inclusion Criteria: 1. Capable of giving signed informed consent. 2. Subject who has a signed and dated Informed Consent Form (ICF). 3. Subject must be 18 to 50 years inclusive, at the time of signing the ICF. 4. Male or female. 5. Female subjects who are not of childbearing potential (or females of childbearing potential who agree to comply with the contraceptive requirements of the clinical trial protocol). 6. Good general health, as determined by the Investigator. 7. A positive SPT to histamine. The following additional inclusion criteria are only applicable to the healthy subjects in Group A1: 8. Healthy subjects (non-atopic) with no clinically significant co-morbidity (including broncho-reactive airway disease like asthma, current allergic rhinitis, etc.). 9. Subjects with no history of allergy or intolerance to peanut or any other food and who consume peanuts with no effect. 10. Subjects with lack of sensitivity to peanut allergen confirmed by SPT using whole peanut extract. 11. Peanut specific immunoglobulin E (IgE) \<0.35 kU/L. 12. Ara h 2 specific IgE \<0.35 kU/L. 13. Subjects with negative basophil activation test (BAT). The following additional inclusion criteria are only applicable to the subjects with PA in Group A2: 14. Clinical history of physician diagnosed PA. 15. Peanut allergen sensitivity confirmed by SPT and IgE. 16. Subjects who currently adhere to a strict peanut-free diet and who agree to continue this for the duration of the clinical trial. 17. Subjects who are able to handle and correctly use an adrenaline auto-injector. Part B Main Inclusion Criteria: 1. Capable of giving signed informed consent. 2. Subject who has a signed and dated ICF. 3. Subjects aged 18 to 50 years of age inclusive, at the time of signing the ICF. 4. Male or female. 5. Female subjects who are not of childbearing potential (or females of childbearing potential who agree to comply with the contraceptive requirements of the clinical trial protocol). 6. Clinical history of physician diagnosed PA. 7. Peanut allergen sensitivity confirmed by positive SPT and Ara h 2 specific IgE ≥1.0 kU/L 8. Subjects with positive BAT. 9. Subjects who currently adhere to a strict peanut-free diet and who agree to continue this for the duration of the clinical trial. 10. Good general health, as determined by the Investigator. 11. Subjects who are able to handle and correctly use an adrenaline auto-injector. Main Exclusion Criteria Part A and B: 1. Pregnant or lactating subject. 2. Presence of any medical condition that may reduce the ability to survive a serious allergic reaction. 3. Subjects with atopic dermatitis with \>25% skin surface involvement. 4. For subjects with PA, presence of severe, poorly controlled or uncontrolled asthma. 5. History of severe or life-threatening anaphylactic reactions to peanut resulting in neurological compromise or requiring mechanical ventilation. 6. History of severe or life-threatening anaphylactic reactions to foods (excluding peanuts), insect venom, exercise, drugs, or idiopathic causes, resulting in neurological compromise or requiring mechanical ventilation or deemed severe as per Investigator assessment. 7. Unable to receive epinephrine therapy or at greater risk of developing adverse reactions after epinephrine administration as assessed by the site Investigator. 8. Clinical history of drug or alcohol abuse, which, in the Investigator's opinion, could interfere with the subject's ability to participate in the clinical trial. 9. Participation in a clinical research trial with any investigational drug/placebo within 3 months of screening (Visit 1) or concomitantly with this clinical trial. 10. Personal, financial or other dependent relationship (e.g., employee or immediate relative) with the clinical trial site, Sponsor, Sponsor's representative, or another individual who has access to the clinical trial protocol. 11. Vulnerable subjects or those in judicial or governmental detention, detainment or imprisonment in a public institution.
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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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Cleveland Clinic Foundation
Cleveland, Ohio, 44195, United States
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Icahn School of Medicine at Mount Sinai
New York, New York, 10029, United States
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Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
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Mayo Clinic
Rochester, Minnesota, 55905, United States
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Trio Clinical Trials, LLC.
Houston, Texas, 77008, United States
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University of Arizona
Tucson, Arizona, 85724, United States
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University of Kansas Medical Center
Kansas City, Kansas, 66160, United States
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University of South Florida
Tampa, Florida, 33613, United States
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University of Wisconsin School of Medicine and Public Health Asthma, Allergy, and Pulmonary Clinical Research
Madison, Wisconsin, 53792-9988, United States
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Washington University School of Medicine
St Louis, Missouri, 63141, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Peanut allergy patch: a new hope for kids?
- A pill that could outsmart food allergies? trial tests remibrutinib
- Peanut allergy cure in sight? trial tests tolerance in teens
- Can a shot tame peanut allergies? small study tests xolair
- Can allergy drugs help kids tolerate peanut and more?
- Peanut allergy patch enters human safety trials