Cytomegalovirus Infection Clinical Trial
Official title:
A Phase 2, Randomized, Observer-Blind, Placebo-Controlled, Dose-Finding Trial to Evaluate the Safety and Immunogenicity of Cytomegalovirus Vaccine mRNA-1647 in Healthy Adults
Verified date | December 2023 |
Source | ModernaTX, Inc. |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This clinical study will assess the safety and immunogenicity of 3 dose levels of mRNA-1647 cytomegalovirus vaccine in CMV-seronegative and CMV-seropositive healthy adults 18-40 years of age.
Status | Completed |
Enrollment | 315 |
Est. completion date | January 4, 2023 |
Est. primary completion date | January 4, 2023 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 40 Years |
Eligibility | Inclusion Criteria: - Male or female 18-40 years of age (Part 1); Female 18-40 years of age (Part 2) - Understands and agrees to comply with the trial procedures and provides written informed consent - According to the assessment of the Investigator, is in good general health and is capable of complying with trial procedures - Body mass index (BMI) 18-35 kilograms/meter (kg/m^2) - Female participants must either be of non-childbearing potential or use acceptable methods of contraception from at least 28 days prior to the first vaccination and through 3 months following last vaccination and is not breastfeeding. - Male participants must agree to practice adequate contraception from the time of the first vaccination and through 3 months after the last vaccination. Exclusion Criteria: - Acutely ill or febrile on the day of the first vaccination - Prior receipt of any CMV vaccine - Abnormal screening safety laboratory test results - Diagnosis or condition that, in the judgment of Investigator, is clinically unstable or may affect participant safety, assessment of safety endpoints, assessment of immune response, or adherence to trial procedures - Has received or plans to receive a vaccine =28 days prior to the first vaccination or plans to receive a non-study vaccine within 28 days prior to or after any study vaccination, except for any licensed influenza vaccine which can be administered >14 days before or after any study vaccination. COVID-19 vaccines (regardless of manufacturer) may be administered >7 days but preferably >14 days before or after any study vaccination, with the intention of prioritizing COVID-19 vaccination over all other considerations. - Prior receipt of chronic systemic immunosuppressants or immune-modifying drugs - Receipt of intravenous immunoglobulins or plasma products within 3 months prior to the day of the first study vaccination - Previous receipt of medications in lipid nanoparticle (LNP) formulation (Part 1 participants only) - Has donated =450 milliliters (mL) of blood products within 28 days of the Screening visit - Participated in an interventional clinical trial within 28 days prior to the day of enrollment - Is an immediate family member or household member of trial personnel |
Country | Name | City | State |
---|---|---|---|
United States | Tekton Research Inc | Austin | Texas |
United States | Aventiv Research Inc | Columbus | Ohio |
United States | Johnson County Clin-Trials | Lenexa | Kansas |
United States | Alliance for Multispecialty Research | Lexington | Kentucky |
United States | Optimal Research | Peoria | Illinois |
United States | Benchmark Research | Sacramento | California |
United States | Foothill Family Clinic | Salt Lake City | Utah |
United States | Foothill Family Clinic-South Clinic | Salt Lake City | Utah |
United States | Crossroads Clinical Research | Victoria | Texas |
Lead Sponsor | Collaborator |
---|---|
ModernaTX, Inc. |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Frequency of Solicited Local and Systemic Adverse Reactions (ARs) | Up to Day 175 (7 days following last dose administration) | ||
Primary | Frequency of Unsolicited Adverse Events (AEs) | Up to Day 196 (28 days following last dose administration) | ||
Primary | Frequency of Medically-Attended Adverse Events (MAAEs) | Up to Day 336 (6 months following last dose administration) | ||
Primary | Frequency of Serious Adverse Events (SAEs) | Up to Day 504 (1 year following last dose administration) | ||
Primary | Change from Baseline in Geometric Mean Titer (GMT) of Serum Neutralizing Anti-CMV Antibodies Against Epithelial Cell Infection and Against Fibroblast Infection | Baseline, Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, Day 504 | ||
Primary | Proportion of Participants with =2-Fold, 3-Fold, and 4-Fold Increases in Neutralizing Antibodies (nAb) over Baseline Against Epithelial Cell Infection and Against Fibroblast Infection | Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, and Day 504 | ||
Secondary | Change from Baseline in GMT of Anti-Glycoprotein B (gB) Specific Immunoglobulin G (IgG) and Anti-Pentamer Specific IgG as Measured by Enzyme-Linked Immunosorbent Assay (ELISA) of Post-Baseline/Baseline Titers | Baseline, Day 1, Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, Day 504 | ||
Secondary | Change from Baseline in Associated GMR of Anti-gB Specific IgG and Anti-Pentamer Specific IgG as Measured by ELISA of Post-Baseline/Baseline Titers | Baseline, Day 1, Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, Day 504 | ||
Secondary | Change from Baseline in GMT of Serum nAb Against Epithelial Cell Infection and Against Fibroblast Infection at Each Timepoint, in the CMV-Seropositive Group and in the CMV-Seronegative Group | Baseline, Day 1, Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, Day 504 | ||
Secondary | Change from Baseline in GMR of Serum nAb Against Epithelial Cell Infection and Against Fibroblast Infection at Each Timepoint, in the CMV-Seropositive Group and in the CMV-Seronegative Group | Baseline, Day 1, Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, Day 504 | ||
Secondary | Proportion of Participants with =2-Fold, 3-Fold, and 4-Fold Increases over Baseline of Serum nAb Against Epithelial Cell Infection and Against Fibroblast Infection | Day 1, Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, and Day 504 | ||
Secondary | Change from Baseline in GMT of Antigen-Specific IgG (ELISA) at each Timepoint in the CMV-Seropositive and CMV-Seronegative Groups | Baseline, Day 1, Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, Day 504 | ||
Secondary | Change from Baseline in GMR of Antigen-Specific IgG (ELISA) at each Timepoint in the CMV-Seropositive and CMV-Seronegative Groups | Baseline, Day 1, Day 29, Day 56, Day 84, Day 168, Day 196, Day 336, Day 504 |
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