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New peanut allergy vaccine enters human testing – could it end the danger?

NCT ID NCT05476497

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 46 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2022

Expected to finish

Nov 2026

An estimate. End dates often move.

Lead sponsor

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

18 to 50 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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.

food allergy Peanut Hypersensitivity

As listed by the trial registrant

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

Contacts and locations

Locations

  • Cleveland Clinic Foundation

    Cleveland, Ohio, 44195, United States

  • Icahn School of Medicine at Mount Sinai

    New York, New York, 10029, United States

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

  • Mayo Clinic

    Rochester, Minnesota, 55905, United States

  • Trio Clinical Trials, LLC.

    Houston, Texas, 77008, United States

  • University of Arizona

    Tucson, Arizona, 85724, United States

  • University of Kansas Medical Center

    Kansas City, Kansas, 66160, United States

  • University of South Florida

    Tampa, Florida, 33613, United States

  • University of Wisconsin School of Medicine and Public Health Asthma, Allergy, and Pulmonary Clinical Research

    Madison, Wisconsin, 53792-9988, United States

  • 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.