Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
mRNA-1647 is an investigational mRNA-based vaccine against cytomegalovirus (CMV) that contains sequences encoding the CMV proteins glycoprotein B and pentamer. Humoral and cellular immune responses were evaluated in blood samples collected from healthy CMV-seropositive and CMV-seronegative adults who participated in a phase 1 trial of a three-dose series of mRNA-1647 (NCT03382405). Neutralizing antibody (nAb) titers against fibroblast and epithelial cell infection in sera from CMV-seronegative mRNA-1647 recipients were higher than those in sera from control CMV-seropositive samples and remained elevated up to 12 months after dose 3. nAb responses elicited by mRNA-1647 were comparable across 14 human CMV (HCMV) strains. Frequencies of antigen-specific memory B cells increased in CMV-seropositive and CMV-seronegative participants after each mRNA-1647 dose and remained elevated for up to 6 months after dose 3. mRNA-1647 elicited robust increases in frequencies and polyfunctionality of CD4 T helper type 1 and effector CD8 T cells in samples from CMV-seronegative and CMV-seropositive participants after stimulation with HCMV-specific peptides. The administration of three doses of mRNA-1647 to healthy adults elicited high nAb titers with wide-breadth, long-lasting memory B cells, and strong polyfunctional T-cell responses. These findings support further clinical development of the mRNA-1647 vaccine against CMV.IMPORTANCECytomegalovirus (CMV), a common virus that can infect people of all ages, may lead to serious health problems in unborn babies and those with a weakened immune system. Currently, there is no approved vaccine available to prevent CMV infection; however, the investigational messenger RNA (mRNA)-based CMV vaccine, mRNA-1647, is undergoing evaluation in clinical trials. The current analysis examined samples from a phase 1 trial of mRNA-1647 in healthy adults to better understand how the immune system reacts to vaccination. Three doses of mRNA-1647 produced a long-lasting immune response, thus supporting further investigation of the vaccine in the prevention of CMV infection.CLINICAL TRIALSRegistered at ClinicalTrials.gov (NCT03382405).
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11019844 | PMC |
| http://dx.doi.org/10.1128/jvi.01603-23 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Increasing Awareness and Early Detection of Common Skin Diseases in Indonesia Through an mHealth App: Protocol for an Awareness and Acceptability Study and Randomized Controlled Trial.
JMIR Res Protoc
September 2025
Department of Public Health, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
Background: Various media are used to enhance public understanding about diseases. While mobile health apps are widely used, there is little proof for using such apps to raise awareness of skin diseases.
Objective: We intend to develop an app, called DEDIKASI-app, to raise awareness of skin diseases, including leprosy.
Gonorrhea and Chlamydia Screening for Adolescents and Young Adults in Emergency Departments.
JAMA Pediatr
September 2025
Department of Pediatrics and Emergency Medicine, Children's National Hospital, George Washington University, Washington, DC.
Importance: Adolescents account for almost half of the 2.5 million diagnosed sexually transmitted infections in the US annually, and the emergency department functions as the primary source of health care for many adolescents. No recommendations exist for emergency department gonorrhea and chlamydia screening.
View Article and Find Full Text PDFElinzanetant for the Treatment of Vasomotor Symptoms Associated With Menopause: A Phase 3 Randomized Clinical Trial.
JAMA Intern Med
September 2025
Bayer CC AG, Basel, Switzerland.
Importance: There is an unmet need for long-term, safe, effective, and hormone-free treatments for menopausal symptoms, including vasomotor symptoms (VMS) and sleep disturbances.
Objective: To evaluate the 52-week efficacy and safety of elinzanetant, a dual neurokinin-targeted therapy, for treating moderate to severe VMS associated with menopause.
Design, Setting, And Participants: OASIS-3 was a double-blind, placebo-controlled, randomized phase 3 clinical trial that was conducted at 83 sites in North America and Europe from August 27, 2021, to February 12, 2024, and included postmenopausal women aged 40 to 65 years who were seeking treatment for moderate to severe VMS (no requirement for a minimum number of VMS events per week).
Text-to-Speech Screen Reader Accessibility of Phase 3 Consent Documents on ClinicalTrials.gov.
JAMA Netw Open
September 2025
Ross and Carol Nese College of Nursing, Pennsylvania State University, University Park.
Design of Two Randomized, Placebo-Controlled, Phase 3 Trials of Deucravacitinib, an Oral, Selective, Allosteric TYK2 Inhibitor, in Systemic Lupus Erythematosus.
Adv Ther
September 2025
Bristol Myers Squibb, Princeton, NJ, 08540, USA.
Background And Objectives: Deucravacitinib, a first-in-class, oral, selective, allosteric tyrosine kinase 2 inhibitor, demonstrated efficacy across the primary endpoint and all key secondary endpoints in the phase 2 PAISLEY SLE trial in patients with active systemic lupus erythematosus (SLE). Here, we describe 2 phase 3 trials [POETYK SLE-1 (NCT05617677), POETYK SLE-2 (NCT05620407)] which will assess the efficacy and safety of deucravacitinib in patients with active SLE. These phase 3 trials have been designed to replicate the successful elements of the phase 2 trial, including its glucocorticoid-tapering strategy and disease activity adjudication.
View Article and Find Full Text PDF