Last updated: 06/19/2026 10:20:38

Safety and immunogenicity of GSKs’ Rabies G SAM (CNE) vaccine [GSK3903133A] in healthy adults

GSK study ID
208608
Clinicaltrials.gov ID
EudraCT ID
Not applicable
EU CT Number
Not applicable
Trial status
Completed
Completed
Overview
Eligibility
Locations
Study documents
Results summary
Plain language summaries
Additional information

Trial overview

Official title: A Phase I, First-Time-in Human (FTiH), Randomized, Placebo and Active Controlled Study to Assess Safety, Reactogenicity and Immunogenicity of GSK’s Rabies G SAM (CNE) Vaccine when Administered Intramuscularly on a 0, 2, 6 -Months Schedule in Healthy Adults Aged 18 to 40 years
Trial description: The purpose of this first time-in-human (FTiH) study is to evaluate the safety, reactogenicity and immunogenicity of different dose levels of an experimental rabies glycoprotein G (RG) vaccine (RG-SAM [CNE] vaccine), made using a new technology, when administered intramuscularly (IM) on a 0, 2-month schedule to healthy adults.
Primary purpose:
Prevention
Trial design:
Sequential Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Allocation:
Randomized
Primary outcomes:

Part 1: Number of participants with solicited administration site adverse events (AEs) post each dose

Timeframe: Within 7 days after each dose (given at Day 1 and Day 61)

Part 2: Number of participants with solicited administration site adverse events (AEs) post each dose

Timeframe: Within 7 days after each dose (given at Day 1 and Day 61)

Number of participants with solicited systemic AEs post each day of dosing

Timeframe: Within 7 days after each day of dosing (doses given at Day 1 and Day 61)

Number of participants with unsolicited AEs post each day of dosing

Timeframe: Within 30 days after each day of dosing (doses given at Day 1 and Day 61)

Number of participants with hematological or biochemical lab abnormalities at Day 4

Timeframe: At Day 4

Number of participants with hematological or biochemical lab abnormalities at Day 8

Timeframe: At Day 8

Number of participants with hematological or biochemical lab abnormalities at Day 61

Timeframe: At Day 61

Number of participants with hematological or biochemical lab abnormalities at Day 64

Timeframe: At Day 64

Number of participants with hematological or biochemical lab abnormalities at Day 68

Timeframe: At Day 68

Number of participants with medically attended AEs (MAEs) from Day 1 to Day 91

Timeframe: Day 1 to Day 91

Number of participants with serious AEs (SAEs) from Day 1 to Day 91

Timeframe: Day 1 to Day 91

Number of participants with potential immune-mediated diseases (pIMDs) Day 1 to Day 91

Timeframe: Day 1 to Day 91

Secondary outcomes:

Number of participants with AEs, MAEs, SAEs and pIMDs from Day 1 to study end (Month 14)

Timeframe: Day 1 to Month 14

Rabies virus neutralizing antibody (RVNA) concentrations

Timeframe: At Day 1 (pre-dose) and Day 91

Anti-rabies-glycoprotein G immunoglobulin-G (IgG) antibody concentration

Timeframe: At Day 1 (pre-dose) and Day 91

Humoral immunogenicity in terms of anti-rabies G IgG antibody concentrations

Timeframe: At Month 7 and Month 12

Interventions:
Biological/vaccine: Low dose formulation of RG SAM (CNE) vaccine (GSK3903133A)
Biological/vaccine: Medium dose formulation of RG SAM (CNE) vaccine (GSK3903133A)
Biological/vaccine: Lower dose formulation of RG SAM (CNE) vaccine (GSK3903133A)
Biological/vaccine: Lowest dose formulation of RG SAM (CNE) vaccine (GSK3903133A)
Drug: Saline Placebo
Biological/vaccine: RabAvert
Enrollment:
82
Observational study model:
Not applicable
Primary completion date:
2021-28-07
Time perspective:
Not applicable
Clinical publications:
Not applicable
Medical condition
Virus Diseases
Product
GSK3903133A
Collaborators
Not applicable
Study date(s)
August 2019 to July 2022
Type
Interventional
Phase
1

Participation criteria

Sex
Female & Male
Age
18 - 40 Years
Accepts healthy volunteers
Yes
  • Participants who, in the opinion of the investigator, can and will comply with the requirements of the protocol (e.g. participation in genetics research, completion of the electronic diary cards, return for follow-up visits).
  • Written informed consent obtained from the participant prior to performance of any study specific procedure.
  • History of diagnosis with rabies exposure, infection or disease.
  • Any confirmed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination.

Trial location(s)

Location
Status
Contact us
Contact us
Location
GSK Investigational Site
Lenexa, Kansas, United States, 66219
Status
Study Complete
Location
GSK Investigational Site
Baltimore, Maryland, United States, 21201
Status
Study Complete
Location
GSK Investigational Site
Miami, Florida, United States, 33143
Status
Study Complete
Location
GSK Investigational Site
Rochester, New York, United States, 14609
Status
Study Complete

Study documents

Protocol
Available language(s): English
Statistical analysis plan
Available language(s): English

If you wish to request for full study report, please contact - [email protected]

Results overview

Results posted on ClinicalTrials.gov

Recruitment status
Completed
Actual primary completion date
2021-28-07
Actual study completion date
2022-01-07

Plain language summaries

Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.

Additional information about the trial

Additional information
Not applicable
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