The trial is taking place at:
N

Noble Clinical Research | Tucson, AZ

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A Study of mRNA-1608, a Herpes Simplex Virus -2 (HSV-2) Therapeutic Candidate Vaccine, in Healthy Adults 18 to 55 Years of Age With Recurrent HSV-2 Genital Herpes

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Moderna

Status and phase

Active, not recruiting
Phase 2
Phase 1

Conditions

Genital Herpes

Treatments

Biological: mRNA-1608
Biological: BEXSERO

Study type

Interventional

Funder types

Industry

Identifiers

NCT06033261
mRNA-1608-P101

Details and patient eligibility

About

The purpose of this study is to generate safety and immunogenicity data and establish a proof-of-concept of clinical benefit of the mRNA-1608 vaccine candidate.

Full description

Participants with a history of recurrent genital herpes will be randomly assigned in a 1:1:1:1 ratio to receive mRNA-1608 at 1 of the 3 dose levels or control (BEXSERO) administered as 2 doses at 0 and 2 months (Day 1 and Day 57).

Enrollment

365 patients

Sex

All

Ages

18 to 55 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Participant has a diagnosis of genital HSV-2 infection for at least 1 year before the Screening Visit.
  • Seropositive for HSV-2 as determined by Western Blot.
  • Participant has a history of recurrent genital herpes defined as at least 3 and no more than 9 reported genital herpes recurrences in the 12 months preceding the Screening Visit, or if currently on suppressive therapy, prior to initiation of suppressive therapy.
  • Willing to refrain from taking suppressive antiviral therapy from the Screening Visit until the end of the study.
  • Willing to refrain from the use of episodic antiviral therapy during the three 28-day anogenital swabbing periods. Episodic therapy may be used outside the three 28-day swabbing periods.
  • For female participants of childbearing potential: negative pregnancy test, adequate contraception, and not currently breastfeeding.

Exclusion criteria

  • Prior immunization with a vaccine containing HSV antigens.
  • History of any form of ocular HSV infection, HSV-related erythema multiforme, or HSV-related neurological complications.
  • History of genital HSV-1 infection.
  • History of hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) types 1 or 2 (HIV-1, HIV-2).
  • Reported history of anaphylaxis or severe hypersensitivity reaction after receipt of any mRNA vaccine(s) or any components of the mRNA vaccines.
  • Previously received BEXSERO or other vaccine to prevent serogroup B meningococcal disease (also known as meningitis B).
  • History of allergic disease or reactions likely to be exacerbated by any component of BEXSERO vaccine.
  • Has received or plans to receive any licensed or authorized vaccine, including COVID-19 vaccines, ≤ 28 days prior to the first study injection (Day 1), or plans to receive a licensed or authorized vaccine within 28 days before or after study injection with the exception of licensed influenza vaccines, which may be received more than 14 days before or after any study injection.

Note: Other inclusion and exclusion criteria may apply.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Triple Blind

365 participants in 4 patient groups

mRNA-1608 Dose A
Experimental group
Description:
Participants will receive 2 intramuscular (IM) injections of mRNA-1608 at Dose Level A, each dose administered at 0 and 2 months (Day 1 and Day 57).
Treatment:
Biological: mRNA-1608
mRNA-1608 Dose B
Experimental group
Description:
Participants will receive 2 IM injections of mRNA-1608 at Dose Level B, each dose administered at 0 and 2 months (Day 1 and Day 57).
Treatment:
Biological: mRNA-1608
mRNA-1608 Dose C
Experimental group
Description:
Participants will receive 2 IM injections of mRNA-1608 at Dose Level C, each dose administered at 0 and 2 months (Day 1 and Day 57).
Treatment:
Biological: mRNA-1608
BEXSERO
Other group
Description:
Participants will receive 2 IM injections of BEXSERO, each dose administered at 0 and 2 months (Day 1 and Day 57).
Treatment:
Biological: BEXSERO

Trial contacts and locations

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Central trial contact

Moderna Clinical Trials Support Center

Data sourced from clinicaltrials.gov

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