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Phase 1 Trial of ChAd68 and Ad5 Adenovirus COVID-19 Vaccines Delivered by Aerosol

NCT05094609 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 36

Last updated 2025-07-17

No results posted yet for this study

Summary

This is a phase 1 study in healthy volunteers who have received at least three doses of an mRNA COVID-19 vaccine, to evaluate the safety and immune responses that develop in the blood and lungs following the administration by aerosol of either Ad5-triCoV/Mac or ChAd-triCoV/Mac, new experimental adenovirus-based vaccines expressing SARS-CoV-2 spike, nucleocapsid and RNA polymerase proteins.

Conditions

Interventions

BIOLOGICAL

Ad5-triCoV/Mac

Ad5-triCoV/Mac is a recombinant type 5 human adenovirus vector which has been engineered to express our trivalent SARS-CoV-2 transgene cassette under the control of an MCMV promoter, and is followed by an SV40 polyA signal. The adenovirus construct is E1 and E3 deleted.This trivalent transgene cassette consists of the S1 region of SARS-CoV-2 spike protein (aa 47-716), full-length SARS-CoV-2 nucleoprotein (N) fused to a highly conserved portion of the SARS-CoV-2 polymerase (RdRp or POL).

BIOLOGICAL

ChAd-triCoV/Mac

ChAd-triCoV/Mac is an E1 and E3 deleted chimpanzee adenovirus serotype 68 where the trivalent SARS-CoV-2 transgene cassette is under the control of an HCMV promoter and is followed by an SV40 polyA signal. The trivalent transgene cassette consists of the S1 region of SARS-CoV-2 spike protein (aa 47-716), full-length SARS-CoV-2 nucleoprotein (N) fused to a highly conserved portion of the SARS-CoV-2 polymerase (RdRp or POL).

Sponsors & Collaborators

  • Canadian Institutes of Health Research (CIHR)

    collaborator OTHER_GOV

  • McMaster University

    lead OTHER

Principal Investigators

  • Fiona M Smaill, MD · McMaster University

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-01-03
Primary Completion
2025-01-15
Completion
2025-01-31

Countries

  • Canada

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05094609 on ClinicalTrials.gov