Safety, Tolerability, and Immunogenicity Study of Homologous Ad26 Mosaic Vector Vaccine Regimens or Heterologous Ad26 Mosaic and MVA Mosaic Vector Vaccine Regimens With Glycoprotein 140 (gp140) for Human Immunodeficiency Virus (HIV) Prevention

Healthy Clinical Trial

Official title:
A Phase 1/2a Trial to Evaluate the Safety/Tolerability and Immunogenicity of Homologous Ad26 Mosaic Vector Regimens or Ad26 Mosaic and MVA Mosaic Heterologous Vector Regimens, With High-Dose, Low-Dose or no Clade C gp140 Protein Plus Adjuvant for HIV Prevention

Status Completed

Clinical Trial Summary

The purpose of this study is to assess the safety and tolerability of various regimens containing adenovirus serotype 26-Mosaic -Human Immunodeficiency Virus (Ad26.Mos.HIV), Modified Vaccinia Ankara (MVA)-Mosaic, and/or HIV type 1 Clade C glycoprotein 140 drug product (gp140 DP) components and to compare envelope binding antibody responses between the different vaccine regimens.

Clinical Trial Description

This is a multicenter (more than 1 hospital or medical school team work on a study), randomized (the study drug is assigned by chance), parallel group (each group of participants will be treated at the same time), placebo-controlled (study in which the experimental treatment or procedure is compared to a pretend treatment with no drug in it to test if the drug has a real effect), and double-blind (neither physician nor participant knows the treatment that the participant receives) study. All eligible participants will be randomly assigned to receive 1 of the 8 vaccine regimens. Participants will receive study vaccines (Ad26.Mos.HIV, MVA-Mosaic, gp140 DP, and placebo) 4 times as per assigned regimen. The study comprises a Screening Period (up to 4 weeks), a Vaccination Period (participants will be vaccinated at Baseline (Week 0), Week 12, Week 24 and Week 48), and a Follow-up Period (up to 48 weeks). A long-term follow-up period (approximately 2 years after Week 96) will continue for participants randomized to the regimen subsequently selected for future studies, based on analysis of Week 28 data. If Week 28 data are inconclusive, Week 52 data will be considered for regimen selection. If no clear decision can be made, the extended follow-up period could include participants from more than 1 group for assessing durability of immune responses. Participants' safety will be monitored throughout the study. ;

Study Design

Related Conditions & MeSH terms

Healthy

Clinical Trial Details

NCT number	NCT02315703
Study type	Interventional
Source	Janssen Vaccines & Prevention B.V.
Contact
Status	Completed
Phase	Phase 1/Phase 2
Start date	December 22, 2014
Completion date	March 28, 2022

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.