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Recruiting Phase 1, Phase 2 NCT06316297

NCT06316297 Study to Evaluate Safety, Efficacy and Immunogenicity of Acne mRNA Vaccine in Adults With Moderate to Severe Acne

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Clinical Trial Summary
NCT ID NCT06316297
Status Recruiting
Phase Phase 1, Phase 2
Sponsor Sanofi Pasteur, a Sanofi Company
Condition Acne
Study Type INTERVENTIONAL
Enrollment 800 participants
Start Date 2024-04-05
Primary Completion 2028-11-30

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age 45 Years
Study Type INTERVENTIONAL
Interventions
Acne mRNA vaccinePlacebo

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 800 participants in total. It began in 2024-04-05 with a primary completion date of 2028-11-30.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The purpose of the trial is to evaluate the safety, efficacy and immunogenicity of up to 3 intramuscular injections of the Acne mRNA vaccine candidate at up to four dose levels in adult participants aged 18 to 45 years with moderate to severe acne. This trial will consist of a Core Study followed by an optional Long-Term Extension (LTE). The Core Study will consist of: * Two cohorts evaluating the 2-administration regimen (Cohorts A): Sentinel Cohort A and Main Cohort A. * Two cohorts evaluating the 3-administration regimen (Cohorts B): Sentinel Cohort B and Main Cohort B. Participants from Sentinel Cohorts A and B and from Main Cohort A will be invited to an additional 30-month follow up after completing their last planned Core Study visit to assess the long-term effects of the vaccine. Participants from Main Cohort B will be invited to another LTE study managed through a separate protocol.

Eligibility Criteria

Inclusion Criteria: * Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, and laboratory tests as judged by the investigator * Clinical diagnosis of moderate or severe facial acne vulgaris with Investigator's Global Assessment (IGA) score of Moderate or Severe (grade 3 or grade 4 on the 5-grade IGA scale) and ≥ 25 non-inflammatory lesions (ie, open and closed comedones) and ≥ 20 inflammatory lesions (ie, papules and pustules) and ≤ 2 nodulocystic lesions (ie, nodules and cysts) Exclusion Criteria: Participants are excluded from the study if any of the following criteria apply: * Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within 6 months prior to the first study intervention administration; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) * Known systemic hypersensitivity to any of the study intervention components; history of a life-threatening reaction to the study interventions used in the study or to a product containing any of the same substances; any allergic reaction (eg, anaphylaxis) after administration of mRNA coronavirus disease 2019 (COVID-19) vaccine * Active nodulocystic acne, acne conglobate, acne fulminans, secondary acne (eg, chloracne, drug-induced acne) or other forms of acne (eg, acne mechanica) * Use of any acne-affecting treatment without an appropriate washout period * Receipt of any vaccine (other than the study vaccine) in the 4 weeks preceding any study intervention administration or planned receipt of any vaccine (other than the study vaccine) in the 4 weeks following any study intervention administration * Previous vaccination against C. acnes with an investigational vaccine * Receipt of immune globulins, blood or blood-derived products in the past 3 months * Self-reported or documented seropositivity for human immunodeficiency virus (HIV), hepatitis B virus, or hepatitis C virus. The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.

Contact & Investigator

Central Contact

Trial Transparency email recommended (Toll free for US & Canada)

✉ contact-us@sanofi.com

📞 800-633-1610

Frequently Asked Questions

Who can join the NCT06316297 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, up to 45 Years, studying Acne. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT06316297 trial and what does that mean for participants?

Phase 1 trials are the first stage of human testing. The primary goal is to assess safety and determine appropriate dosage levels. Participants are closely monitored. These trials typically involve a small number of volunteers.

Is NCT06316297 currently recruiting?

Yes, NCT06316297 is actively recruiting participants. Contact the research team at contact-us@sanofi.com for enrollment information.

Where is the NCT06316297 trial being conducted?

This trial is being conducted at Scottsdale, United States, Cerritos, United States, Encino, United States, La Mesa, United States and 11 additional locations.

Who is sponsoring the NCT06316297 clinical trial?

NCT06316297 is sponsored by Sanofi Pasteur, a Sanofi Company. The trial plans to enroll 800 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology