New JN.1 COVID shot shows promise in High-Risk groups
NCT ID NCT07079670
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a new vaccine designed to protect against the Omicron JN.1 variant of COVID-19. About 120 adults aged 65 and older, and teens and adults aged 12 to 64 with health conditions that increase COVID-19 risk, received one dose. Researchers checked how well the vaccine boosted immunity and monitored safety for 6 months.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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676 people
The number who actually took part.
- Started
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Oct 2025
- Finished
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May 2026
- 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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12 to 90 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.
Inclusion Criteria: * To be included in this study, each individual must satisfy all the following criteria: 1. Participants ≥ 65 years of age and participants 12 through 64 years who have at least one underlying condition that puts them at high risk of severe outcomes from COVID-19 at time of study vaccination. In each instance, the investigator's judgment may be exercised and other eligibility criteria must be respected. 2. Previously vaccinated with a COVID-19 vaccine with the last dose administered ≥ 90 days prior to study vaccination (written or verbal confirmation by participant). 3. Participant and parent(s)/caregiver(s) or legally acceptable representative willing and able to give informed consent and assent prior to study enrollment and to comply with study procedures. 4. Female participants of childbearing potential (defined as any participant who has experienced menarche and who is NOT surgically sterile \[ie, hysterectomy, bilateral tubal ligation, or bilateral oophorectomy\] or postmenopausal \[defined as amenorrhea ≥ 12 consecutive months\]) must agree to be heterosexually inactive from at least 28 days prior to enrollment and through the end of the study OR agree to consistently use a medically acceptable method of contraception listed below from ≥ 28 days prior to enrollment and through the end of the study. 1. Condoms (male or female) with spermicide (if acceptable in country) 2. Diaphragm with spermicide 3. Cervical cap with spermicide 4. Intrauterine device 5. Oral or patch contraceptives 6. Norplant®, Depo-Provera®, or other in country regulatory approved contraceptive method that is designed to protect against pregnancy 7. Abstinence, as a form of contraception, is acceptable if in line with the participant's lifestyle NOTE: Periodic abstinence (eg, calendar, ovulation, sympto-thermal, post-ovulation methods) and withdrawal are not acceptable methods of contraception. 5. Is medically stable, as determined by the investigator (based on review of health status, vital signs \[to include body temperature\], medical history, and physical examination. Vital signs must be within medically acceptable ranges prior to study vaccination. If the individual has a diagnosis of hypertension, it must be stable and controlled with necessary medication. 6. Agrees not to participate in any research involving receipt of investigational products (drug/biologic/device), including other SARS-CoV-2 prevention or treatment trials, for the duration of the study. Exclusion Criteria: * If an individual meets any of the following criteria, he or she is ineligible for this study: 1. Current participation in research involving receipt of investigational products (drug/biologic/device). 2. Received any other vaccine (except for a licensed seasonal influenza vaccine or rabies vaccine \[if medically indicated\]) within 28 days prior to study vaccination. For the influenza vaccine, a participant is eligible as long as the vaccine was administered ≥ 14 days prior to study vaccination. 3. Any known history of allergies to products contained in the investigational product in the participant's lifetime. 4. Any known history of anaphylaxis to any prior vaccine in the participant's lifetime. 5. Known history of myocarditis or pericarditis in the participant's lifetime. 6. Suspected or known history of alcohol abuse or drug addiction within 2 years prior to study vaccination that, in the opinion of the investigator, might interfere with protocol compliance. 7. Autoimmune or immunodeficiency disease/condition (iatrogenic or congenital) that requires the use of immune modulators. NOTE: Stable endocrine disorders (eg, thyroiditis, pancreatitis), including stable diabetes mellitus with no history of diabetic ketoacidosis, are NOT excluded. 8. Chronic administration (defined as \> 14 continuous days) of immunosuppressant, systemic glucocorticoids, or other immune-modifying drugs within 90 days prior to study vaccination (Day 0). NOTE: An immunosuppressant dose of glucocorticoid is defined as a systemic dose ≥ 10 mg of prednisone per day or equivalent. The use of topical, inhaled or intranasal glucocorticoids is permitted. Topical tacrolimus and ocular cyclosporin are permitted. 9. Received any prohibited medication (see Section 7.3), immunoglobulin, blood-derived products, or immunosuppressant drugs within 90 days prior to study vaccination (Day 0). 10. Active cancer (malignancy) on chemotherapy within 3 years prior to study vaccination (with the exception of adequately treated non-melanomatous skin carcinoma or lentigo maligna and uterine cervical carcinoma in situ without evidence of disease, at the discretion of the investigator). 11. Participants who are breastfeeding, pregnant, or who plan to become pregnant prior to the end of study. 12. Any other condition that, in the opinion of the investigator, would pose a health risk to the participant if enrolled or could interfere with evaluation of the study vaccine or interpretation of study results (including neurologic or psychiatric conditions likely to impair the quality of safety reporting). 13. Study team member or immediate family member of any study team member (inclusive of Sponsor, clinical research organization \[CRO\], and study site personnel involved in the conduct or planning of the study). 14. Temperature of \> 38°C/≥ 100.4°F (oral measurement) or respiratory symptoms in the past 3 days (ie, cough, sore throat, difficulty breathing) leading up to Day 0. * The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.
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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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Investigational Site Number US047
Austin, Texas, 78705-3298, United States
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Investigational Site Number US073
Tomball, Texas, 77375, United States
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Investigational Site Number US294
Lafayette, Louisiana, 70508, United States
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Investigational Site Number US326
Omaha, Nebraska, 68134, United States
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Investigational Site Number US381
Cincinnati, Ohio, 45246-2316, United States
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Investigational Site Number US391
Pleasant View, Utah, 84404-4791, United States
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Investigational Site Number US395
Melrose Park, Illinois, 60160, United States
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Investigational Site Number US404
Phoenix, Arizona, 85044, United States
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Investigational Site Number US406
Lenexa, Kansas, 66219, United States
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Investigational Site Number US407
Southfield, Michigan, 48076-5412, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Home antibody tests put to the test: can you read your own COVID-19 result?
- Can a pill stop COVID-19 before it starts?
- Why COVID-19 hits blood cancer patients harder: scientists map the immune clues
- Can lung ultrasound reveal COVID-19's signature in the lungs?