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Low dose formulation of RG SAM vaccine

Phase 1

Virus Diseases | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Mar 1, 2024

Target and mechanism

ModalityMonoclonal antibody

Also known as Low dose formulation of RG SAM (CNE) vaccine (GSK3903133A)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment160

FDA Designations

No designations recorded

Clinical trial landscape

Low dose formulation of RG SAM vaccine · 1 trial · 1 indication

Phase 1 1
NCT04062669A Study to Evaluate the Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Experimental Rabies Vaccine in Healthy AdultsVirus Diseases
COMPLETED160 Analytics
PHASE1COMPLETED
A Study to Evaluate the Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Experimental Rabies Vaccine in Healthy Adults
Virus DiseasesUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants reporting solicited local adverse events (AEs) during the 7-day follow-up period after the first dose received in the Primary vaccination phase
During the 7-day follow-up period after the first dose (administered at Day 1)

The following local AEs are solicited: pain, redness and swelling at injection site.

Number of participants reporting solicited local adverse events (AEs) during the 7-day follow-up period after the second dose received in the Primary vaccination phase
During the 7-day follow-up period after the second dose (administered at Day 61)

The following local AEs are solicited: pain, redness and swelling at injection site.

Number of participants reporting solicited general AEs during the 7-day follow-up period after the first dose received in the Primary vaccination phase
During the 7-day follow-up period after the first dose (administered at Day 1)

The following general AEs are solicited: fatigue, fever, nausea, vomiting, diarrhea, abdominal pain and headache. Fever is defined as temperature ≥ 38.0°C / 100.4°F. The preferred location for measuring temperature in this study is the oral cavity.

Number of participants reporting solicited general AEs during the 7-day follow-up period after the second dose received in the Primary vaccination phase
During the 7-day follow-up period after the second dose (administered at Day 61)

The following general AEs are solicited: fatigue, fever, nausea, vomiting, diarrhea, abdominal pain and headache. Fever is defined as temperature ≥ 38.0°C / 100.4°F. The preferred location for measuring temperature in this study is the oral cavity.

Number of participants reporting unsolicited AEs during a 30-day follow-up period follow-up after the first dose received in the Primary vaccination phase
During the 30-day follow-up period after the first dose (administered at Day 1).

Unsolicited AE is defined as an AE reported in addition to those solicited during the clinical study and as any solicited AE with onset outside the specified period of follow-up for solicited symptoms.

Number of participants reporting unsolicited AEs during a 30-day follow-up period follow-up after the second dose received in the Primary vaccination phase
During the 30-day follow-up period after the second dose (administered at Day 61).

Unsolicited AE is defined as an AE reported in addition to those solicited during the clinical study and as any solicited AE with onset outside the specified period of follow-up for solicited symptoms.

Number of participants with hematological and biochemical laboratory abnormalities at Day 1.
At Day 1

Clinically significant abnormal laboratory findings (e.g. clinical chemistry and hematology) are reported. The investigator exercises his or her medical and scientific judgement in deciding whether an abnormal laboratory finding or other abnormal assessment is clinically significant.

Number of participants with hematological and biochemical laboratory abnormalities at Day 4.
At Day 4.

Clinically significant abnormal laboratory findings (e.g. clinical chemistry and hematology) are reported. The investigator exercises his or her medical and scientific judgement in deciding whether an abnormal laboratory finding or other abnormal assessment is clinically significant.

Number of participants with hematological and biochemical laboratory abnormalities at Day 8.
At Day 8.

Clinically significant abnormal laboratory findings (e.g. clinical chemistry and hematology) are reported. The investigator exercises his or her medical and scientific judgement in deciding whether an abnormal laboratory finding or other abnormal assessment is clinically significant.

Number of participants with hematological and biochemical laboratory abnormalities at Day 61.
At Day 61.

Clinically significant abnormal laboratory findings (e.g. clinical chemistry and hematology) are reported. The investigator exercises his or her medical and scientific judgement in deciding whether an abnormal laboratory finding or other abnormal assessment is clinically significant.

Number of participants with hematological and biochemical laboratory abnormalities at Day 64.
At Day 64.

Clinically significant abnormal laboratory findings (e.g. clinical chemistry and hematology) are reported. The investigator exercises his or her medical and scientific judgement in deciding whether an abnormal laboratory finding or other abnormal assessment is clinically significant.

Number of participants with hematological and biochemical laboratory abnormalities at Day 68.
At Day 68.

Clinically significant abnormal laboratory findings (e.g. clinical chemistry and hematology) are reported. The investigator exercises his or her medical and scientific judgement in deciding whether an abnormal laboratory finding or other abnormal assessment is clinically significant.

Number of participants reporting medically attended AE (MAEs)
During 90 days (from Day 1 to Day 91)

A medically attended adverse event is an AE for which the participants received medical attention defined as hospitalization, an emergency room visit or a visit to or from medical personnel (i.e., nurse practitioner or physician assistant or medical doctor) for any reason.

Number of participants reporting serious adverse events (SAEs)
During 90 days (from Day 1 to Day 91)

SAEs assessed include any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity or is a congenital anomaly/birth defect in the offspring of a study patient.

Number of participants reporting potential immune-mediated diseases (pIMDs)
During 90 days (from Day 1 to Day 91)

pIMDs are a subset of AEs that include autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have an autoimmune etiology.

Secondary Endpoints

Number of participants reporting solicited local adverse events (AEs) during the 7-day follow-up period after each vaccination received from Day 1 up to study conclusion at Month 18
During the 7-day follow-up period after the third dose (administered at Day 181)
Number of participants reporting solicited general AEs during the 7-day follow-up period after each vaccination received from Day 1 up to study conclusion at Month 18
During the 7-day follow-up period after the third dose (administered at Day 181)
Number of participants reporting unsolicited AEs during a 30-day follow-up period after each vaccination from Day 1 up to study conclusion at Month 18
During the 30-day follow-up period after the third dose (administered at Day 181)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Low dose (Ld-) RG SAM (CNE) groupEXPERIMENTALIn Part 1 of the study, healthy adults, 18 to 40 years of age, will receive one intramuscular injection of RG SAM (CNE) low dose formulation vaccine in one arm and one intramuscular injection of saline solution in the opposite arm at Days 1 and 61). In Part 2 of the study, healthy adults, 18 to 40 years of age, will receive one intramuscular injection of RG SAM (CNE) low dose formulation vaccine in one arm according to a 0, 2, 6-month schedule (i.e. at Days 1 and 61)
Medium dose (Md-) RG SAM (CNE) groupEXPERIMENTALHealthy adults,18 to 40 years of age, will receive one intramuscular injection of RG SAM (CNE) medium dose formulation vaccine in one arm and one intramuscular injection of saline solution in the opposite arm at Day 1.
Lower dose (Lrd-) RG SAM (CNE) groupEXPERIMENTALHealthy adults, 18 to 40 years of age, will receive one intramuscular injection of RG SAM (CNE) lower dose formulation vaccine in one arm according to a 0, 2, 6-month schedule (i.e. at Days 1 and 61)
Lowest dose (Ltd-) RG SAM (CNE) groupEXPERIMENTALHealthy adults, 18 to 40 years of age, will receive one intramuscular injection of RG SAM (CNE) lowest dose formulation vaccine in one arm according to a 0, 2, 6-month schedule (i.e. at Days 1 and 61)
Saline Placebo groupPLACEBO_COMPARATORIn Part 1 of the study, healthy adults, 18 to 40 years of age, will receive two intramuscular injections of saline placebo, one in each arm, according to a 0, 2, 6-month schedule (i.e. at Days 1 and 61). In Part 2 of the study, healthy adults, 18 to 40 years of age will receive one intramuscular injections of saline placebo in one arm according to a 0, 2, 6-month schedule (i.e. at Days 1 and 61).
RabAvert groupACTIVE_COMPARATORIn Part 1 of the study, healthy adults, 18 to 40 years of age, will receive one intramuscular injection of RabAvert in one arm and one intramuscular injection of saline solution in the other arm, according to a 0, 2, 6-month schedule (i.e. at Days 1 and 61). In Part 2 of the study, healthy adults, 18 to 40 years of age, will receive one intramuscular injection of RabAvert in one arm according to a 0, 2, 6-month schedule (i.e. at Days 1 and 61).

Interventions

NameTypeDescription
Low dose formulation of RG SAM (CNE) vaccine (GSK3903133A)BIOLOGICALSubjects in the low dose (Ld-) RG SAM (CNE) group will receive 2 doses of RG SAM (CNE) low dose formulation, administered intramuscularlyat Days 1 and 61.
Medium dose formulation of RG SAM (CNE) vaccine (GSK3903133A)BIOLOGICALSubjects in the medium dose (Md-) RG SAM (CNE) group will receive 1 doses of RG SAM (CNE) medium dose formulation, administered intramuscularly at Day 1.
Lower dose formulation of RG SAM (CNE) vaccine (GSK3903133A)BIOLOGICALSubjects in the Lower dose (Lrd-) RG SAM (CNE) group will receive 2 doses of RG SAM (CNE) lower dose formulation, administered intramuscularly, according to a 0, 2-month schedule (i.e. at Days 1 and 61)
Lowest dose formulation of RG SAM (CNE) vaccine (GSK3903133A)BIOLOGICALSubjects in the Lowest dose (Ltd-) RG SAM (CNE) group will receive 2 doses of RG SAM (CNE) lowest dose formulation, administered intramuscularly, according to a 0, 2-month schedule (i.e. at Days 1 and 61)
Saline PlaceboDRUGSubjects in the Saline Placebo group will receive 2 doses of saline Placebo, administered intramuscularly Day 1 and 61.
RabAvertBIOLOGICALSubjects in the RabAvert Group will receive 2 doses of RabAvert vaccine, administered intramuscularly, at Days 1 and 61.
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Eligibility Criteria

Age Range18 Years to 40 Years
SexALL
Healthy VolunteersYes
Study Sites4

Inclusion Criteria: * 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 partic...

Countries:United States
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