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A Study to Investigate the Immunogenicity and Safety of mRNA-1345 Vaccine Targeting Respiratory Syncytial Virus (RSV) in High-risk Adults

Phase 3
Active, not recruiting
Conditions
Respiratory Syncytial Virus
Interventions
Registration Number
NCT06067230
Lead Sponsor
ModernaTX, Inc.
Brief Summary

The study is divided into 2 parts (Part A and Part B). Part A of the study will evaluate the safety and immune response to mRNA-1345 in high-risk adults aged ≥18 to \<60 years.

Part B of the study will evaluate the safety and immune response to mRNA-1345 in adults who received solid organ transplant (SOT).

Detailed Description

Not available

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
1153
Inclusion Criteria

Part A:

  • Adults ≥18 to <60 years of age at the time of consent who are primarily responsible for self-care and activities of daily living.

  • Documented confirmation by a physician of the diagnosis of at least one of the following conditions:

    1. Coronary artery disease and/or congestive heart failure.
    2. Chronic lung disease (for example, including but not limited to chronic obstructive pulmonary disease or persistent asthma).
    3. Stable type 1 or type 2 diabetes mellitus controlled with at least 1 medication started 90 days or more prior to Day 1.

Part B:

  • Adults ≥18 years of age at the time of consent who are primarily responsible for self-care and activities of daily living.
  • Recipient of an SOT (kidney, liver, or lung transplant) ≥180 days prior to day of consent and receiving chronic immunosuppressive therapy for the prevention of allograft rejection.

Parts A and B:

  • Able to comply with study requirements.

Key

Exclusion Criteria

Part A:

  • Participation in an another clinical research trial where the participant has received an investigational product 180 days prior to Day 1. Participation in an RSV trial at any time prior to Day 1 is exclusionary.
  • History of a diagnosis or condition, that, in the judgment of the Investigator, is clinically unstable or may affect participant safety, assessment of safety endpoints, assessment of immune response, or adherence to study procedures.
  • Reported history of anaphylaxis or severe hypersensitivity reaction after receipt of the mRNA-1345 injection or any components of the mRNA-1345 injection.
  • Chronic administration (defined as more than 14 continuous days) of immunosuppressants or other immune-modifying drugs within 180 days prior to Day 1.
  • History of myocarditis, pericarditis, or myopericarditis.

Part B:

  • Previous treatment with alemtuzumab or rituximab within 2 years prior to Day 1.
  • Previous treatment with plasmapheresis within 30 days prior to Day 1.
  • A history of complications of immunosuppression.
  • A history of biopsy proven or clinically diagnosed rejection within 90 days prior to Day 1 or suspected active chronic rejection according to the Investigator's judgment.

Note: Other protocol-defined inclusion/exclusion criteria apply

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Part A: mRNA-1345 Dose 2mRNA-1345Single injection of mRNA-1345 administered IM on Day 1.
Part A: mRNA-1345 Dose 1mRNA-1345Single injection of mRNA-1345 administered intramuscularly (IM) on Day 1.
Part B: mRNA-1345 Dose 2mRNA-1345Two injections of mRNA-1345 administered IM on Day 1 and Day 57.
Primary Outcome Measures
NameTimeMethod
Number of Participants With Serious Adverse Events (SAEs), Adverse Events of Special Interest (AESIs), and AEs Leading to DiscontinuationDay 1 through End of Study (Day 730)
Part A: Geometric Mean Titer (GMT) of Serum Respiratory Syncytial Virus Subtype A (RSV-A) and Respiratory Syncytial Virus Subtype B (RSV-B) Neutralizing Antibodies (Abs) at Day 29Day 29
Part B: GMT of Serum RSV-A and RSV-B Neutralizing Abs at Day 85Day 85
Number of Participants with Solicited Local and Systemic Adverse Reactions (ARs)Day 1 through Day 7 (7 days post injection) for Part A and Day 1 through Day 64 (7 days post second injection) for Part B
Number of Participants with Unsolicited Adverse Events (AEs)Day 1 through Day 28 (28 days post injection) for Part A and Day 1 through Day 84 (28 days post second injection) for Part B
Number of Participants With Medically Attended AEs (MAAEs)Day 1 through Month 6 (for Part A) and Day 1 through Month 9 (for Part B)
Secondary Outcome Measures
NameTimeMethod
Part A: Seroresponse Rate (SRR) of RSV-A and RSV-B Neutralizing Abs on Day 29Day 29
Part A: Geometric Mean Concentration (GMC) of Serum RSV Prefusion Conformation of the F Protein (Pre-F) Binding AbsUp to End of Study (Day 730)
Part A: Geometric Mean Fold-Rise (GMFR) of Serum RSV Pre-F Binding AbsUp to End of Study (Day 730)
Part A: SRR of Serum RSV Pre-F Binding Abs at Postbaseline/Baseline LevelsBaseline up to Day 730
Part A: Number of Participants with ≥2-Fold Increase in RSV Pre-F Binding AbsUp to End of Study (Day 730)
Part A: GMT of Serum RSV-A and RSV-B Neutralizing Abs at Day 29Day 29
Part A: GMT of Postinjection/Baseline Titers to RSV-A and RSV-B Neutralizing AbsBaseline up to Day 730
Part A: GMFR of Postinjection/Baseline Titers to RSV-A and RSV-B Neutralizing AbsBaseline up to Day 730
Part A: SRR of Serum RSV-A and RSV-B Neutralizing AbsUp to End of Study (Day 730)
Part A: Number of Participants with ≥2-Fold Increase in RSV-A and RSV-B Neutralizing Abs TitersUp to End of Study (Day 730)
Part B: GMT of Serum RSV-A and RSV-B Neutralizing Abs at Day 29Day 29
Part B: SRR of Serum RSV-A and RSV-B Neutralizing Abs on Day 29Day 29
Part B: SRR of Serum RSV-A and RSV-B Neutralizing Abs on Day 85Day 85
Part B: GMT of Serum RSV-A and RSV-B Neutralizing AbsUp to End of Study (Day 730)
Part B: GMFR of Serum RSV-A and RSV-B Neutralizing AbsUp to End of Study (Day 730)
Part B: SRR of Serum RSV-A and RSV-B Neutralizing Abs at Postbaseline/Baseline LevelsBaseline up to Day 730
Part B: Number of Participants with ≥2-Fold Increase in RSV-A and RSV-B Neutralizing AbsUp to End of Study (Day 730)
Part B: GMC of Serum RSV Pre-F Binding AbsUp to End of Study (Day 730)
Part B: GMFR of Serum RSV Pre-F Binding AbsUp to End of Study (Day 730)
Part B: SRR of Serum RSV Pre-F Binding Abs at Postbaseline/Baseline LevelsBaseline up to End of Study (Day 730)
Part B: Number of Participants with ≥2-Fold Increase in RSV Pre-F Binding AbsUp to End of Study (Day 730)

Trial Locations

Locations (44)

Lenzmeier Family Medicine - CCT - PPDS

🇺🇸

Glendale, Arizona, United States

Foothills Research Center - CCT - PPDS

🇺🇸

Phoenix, Arizona, United States

Fiel Family & Sports Medicine - PC - CCT - PPDS

🇺🇸

Tempe, Arizona, United States

Baptist Health Center for Clinical Research

🇺🇸

Little Rock, Arkansas, United States

David Geffen School of Medicine at UCLA

🇺🇸

Los Angeles, California, United States

Artemis Institute For Clinical Research LLC - San Diego - Headlands - PPDS

🇺🇸

San Diego, California, United States

Critical Care, Pulmonary and Sleep Associates / CCT Research

🇺🇸

Lakewood, Colorado, United States

Yale University School of Medicine

🇺🇸

New Haven, Connecticut, United States

Excel Medical Clinical Trials DBA Flourish

🇺🇸

Boca Raton, Florida, United States

Indago Research and Health Center

🇺🇸

Hialeah, Florida, United States

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Lenzmeier Family Medicine - CCT - PPDS
🇺🇸Glendale, Arizona, United States

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