Approval Probability
TA Base Rate
Adjusted LOA
ML Risk
Also known as Influenza A (H5N1) Virus monovalent vaccine (GSK1557484A)., Influenza A Virus monovalent vaccine, Influenza A (H5N1) Virus Monovalent Vaccine, Influenza A Virus Monovalent Vaccine, Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted, Influenza A (H5N1) Virus monovalent vaccine
Influenza A Virus Monovalent Vaccine, Adjuvanted · 7 trials · 2 indications
Solicited local symptoms assessed were pain, redness and swelling. Any was defined as any solicited local symptom reported irrespective of intensity. Grade 3 pain was defined as significant pain at rest that prevented normal everyday activities. Grade 3 redness and swelling was greater than 100 millimeters (mm) i.e. \>100mm.
Solicited general symptoms assessed were fatigue, gastrointestinal symptoms, headache, joint pain, muscle ache, shivering, sweating and fever \[oral temperature above 38.0 degrees Celsius (°C)\]. Gastrointestinal symptoms included nausea, vomiting, diarrhea and/or abdominal pain. Any = any solicited general symptom reported irrespective of intensity and relationship to vaccination. Related = symptoms considered by the investigator to have a causal relationship to vaccination. Grade 3 symptoms = symptoms that prevented normal activity. Grade 3 fever = axillary temperature ≥ 39.0°C and ≤40°C.
Unsolicited AE covers any AE reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as occurrence of any unsolicited symptom regardless of intensity grade or relation to vaccination. Related was defined as an unsolicited symptom assessed as causally related to the study vaccination.
A seroprotected subject against the a/Indonesia/5/2005 (A/INDO) virus strain was defined as a subject with H5N1 reciprocal haemagglutination inhibition (HI) antibody titers greater than or equal to (\>=) the seroprotection cut-off of 1:40.
A seroconverted subject was defined as a vaccinated subject who had either a pre-vaccination (Day 0) reciprocal HI titer \< 1:10 and a post-vaccination (Day 42) reciprocal titer ≥ 1:40, or a pre-vaccination reciprocal HI titer ≥ 1:10 and at least a 4-fold increase in post-vaccination reciprocal titer against A/Indonesia/5/05 virus 21 days after the second dose of Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted.
A seroprotected subject was defined as a vaccinated subject with serum Hemagglutination Inhibition (HI) titer ≥ 1:40.
Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade.
Assessed solicited general symptoms were fatigue, headache, joint pain at other locations, muscle aches, shivering, sweating and temperature\[defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)\]. Any = occurrence of the symptom regardless of intensity grade.
An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.
Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.
The HI antibody titres were expressed in terms of immunogenicity indices for each group. Immunogenicity index (DGMT) = If the LL of the 95% CI for GMT group ratio is less than 0.25 then DGMT =0. If the LL of the 95% CI for GMT group ratio is greater than 1 then DGMT =1.
The MN antibody titres were expressed in terms of immunogenicity indices for each group. Immunogenicity index (DGMT) = If the LL of the 95% CI for GMT group ratio is less than 0.25 then DGMT =0. If the LL of the 95% CI for GMT group ratio is greater than 1 then DGMT =1.
Fever index was defined as the average temperature for each vaccine group. Fever index (DR) = The average temperature measurement for each vaccine group. Fever index from Days 0-2 after each dose Any temperature \< 38°C (100.4 F) was assigned a value of 0. Any temperature \> 40.5°C was assigned a value of 40.5. DR correspond to 243 minus the sum of recorded temperature values for 3 days after (dose 1 and dose 2)/243.
Fever index was defined as the average temperature for each vaccine group. Fever index (DR)= The average temperature measurement for each vaccine group. Fever index from Days 0-2 after each dose Any temperature \< 38°C (100.4 F) was assigned a value of 0. Any temperature \> 40.5°C was assigned a value of 40.5. DR correspond to 243 minus the sum of recorded temperature values for 3 days after (dose 1 and dose 2)/243.
MGI was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer (Day 392) to the pre-vaccination (Day 385) reciprocal HI titer for the vaccine virus. The vaccine strains assessed were Flu A/Indonesia/5/2005 H5N1 (homologous), Flu A/Vietnam/1194/2004 H5N1 (heterologous), Flu A/duck/Bangladesh/19097/2013 H5N1 (heterologous) and Flu A/gyrfalcon/Washington/41088-6/2014 H5N8 (heterologous).
MGI was defined as the geometric mean of the within-subject ratios of the post-vaccination (Day 392) reciprocal MN titer to the pre-vaccination (Day 385) reciprocal MN titer for the vaccine virus. The vaccine strains assessed were Flu A/Indonesia/5/2005 H5N1 (homologous), Flu A/Vietnam /1194/2004 H5N (heterologous) and Flu A/duck/Bangladesh/19097/2013 H5N1 (heterologous).
A seroconverted subject was defined as a vaccinated subject who had either a pre-vaccination reciprocal HI titer less than (\<) 1:10 and a post-vaccination reciprocal HI titer greater than or equal to (≥) 1:40 or a pre-vaccination reciprocal HI titer ≥ 1:10 and at least a four-fold increase in post-vaccination reciprocal titer against the vaccine virus.
MGI was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the pre-vaccination (Day 0) reciprocal HI titer for the vaccine virus.
A seroprotected subject was defined as a vaccinated subject who had H5N1 reciprocal HI titers ≥ 1:40 against the vaccine-homologous virus.
Antibody titers were expressed as Geometric mean titers (GMTs). The H5N1 vaccine strain included A/Indonesia/05/2005 antigen (A/Indonesia).
A seroconverted subject was defined as a subject who had either a pre-vaccination titer below 1:10 and a post-vaccination titer greater than or equal to 1:40 or a pre-vaccination titer greater than or equal to 1:10 and at least a 4-fold increase in post-vaccination titer. The H5N1 vaccine strain included A/Indonesia antigen.
Seroconversion factors (SCF) were defined as the fold increase in serum H5N1 HI antibody GMTs post-vaccination compared to Day 0, at Day 42. The H5N1 vaccine strain included A/Indonesia antigen.
A seroprotected subject was defined as a subject with a serum H5N1 HI antibody titer greater than or equal to 1:40, at Day 42. The H5N1 vaccine strain included A/Indonesia antigen.
A seroconverted subject was defined as a vaccinated subject who had either a pre-vaccination (Day 0) reciprocal hemagglutination inhibition (HI) titer less than (\<) 1:10 and a post-vaccination (at Day 14 post Dose 2) reciprocal titer greater than or equal to (≥) 1:40 or a pre-vaccination reciprocal HI titer ≥ 1:10 and at least a four-fold increase in post-vaccination (at Day 14 post Dose 2) titer.
Titers are presented as geometric mean titers (GMTs). The Confidence Interval for this outcome was 98.75%.
A seroprotected subject was defined as a vaccinated subject who had a serum HI titer ≥ 1:40.
| Arm | Type | Description |
|---|---|---|
| Influenza A (H5N1) Virus monovalent vaccine 18-64 Years Group | EXPERIMENTAL | Subjects 18-64 years of age received 2 doses of Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted (A/Indonesia) at Days 0 and 21. The vaccine was administered intramuscularly in the deltoid of the non-dominant arm at Day 0 and dominant arm at Day 21. |
| Influenza A (H5N1) Virus monovalent vaccine > 64 Years Group | EXPERIMENTAL | Subjects \>64 years of age received 2 doses of Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted (A/Indonesia) at Days 0 and 21. The vaccine was administered intramuscularly in the deltoid of the non-dominant arm at Day 0 and dominant arm at Day 21. |
| Influenza A (H5N1) adjuvanted 6-<36M Group | EXPERIMENTAL | Subjects aged at enrolment between 3 and 36 months, 36 months excluded, received 2 doses of Influenza A (H5N1) Virus monovalent vaccine (GSK1557484A vaccine or GSK Biologicals' monovalent A/Indonesia/5/2005 (H5N1) vaccine adjuvanted) at Days 0 and 21. Influenza A (H5N1) Virus monovalent vaccine was administered intramuscularly. For children aged up to 12 months, 12 months excluded (\< 12 months), Dose 1 was administered in the left anterolateral thigh and Dose 2 in the right anterolateral thigh. For children older than (\>=) 12 months, Dose 1 was administered in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) and Dose 2 in the deltoid region of the dominant arm (or right arm). |
| Influenza A (H5N1) Virus monovalent vaccine 3-<9Y Group | EXPERIMENTAL | Subjects aged at enrolment between 3 and 9 years, 9 years excluded, received 2 doses of Influenza A (H5N1) Virus monovalent vaccine (GSK1557484A vaccine or GSK Biologicals' monovalent A/Indonesia/5/2005 (H5N1) vaccine adjuvanted) at Days 0 and 21. Influenza A (H5N1) Virus monovalent vaccine was administered intramuscularly, Dose 1 in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) and Dose 2 in the deltoid region of the dominant arm (or right arm). |
| Influenza A (H5N1) Virus monovalent vaccine 9-<18Y Group | EXPERIMENTAL | Subjects aged at enrolment between 9 and 18 years, 18 years excluded, received 2 doses of Influenza A (H5N1) Virus monovalent vaccine (GSK1557484A vaccine or GSK Biologicals' monovalent A/Indonesia/5/2005 (H5N1) vaccine adjuvanted) at Days 0 and 21. Influenza A (H5N1) Virus monovalent vaccine was administered intramuscularly, Dose 1 in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) and Dose 2 in the deltoid region of the dominant arm (or right arm). |
| Placebo 6-<36M Group | PLACEBO_COMPARATOR | Subjects aged at enrolment between 3 and 36 months, 36 months excluded, received 2 doses of saline placebo at Days 0 and 21. The saline placebo was administered intramuscularly. For children aged up to 12 months, 12 months excluded (\< 12 months), Dose 1 was administered in the left anterolateral thigh and Dose 2 in the right anterolateral thigh. For children older than (\>=) 12 months, Dose 1 was administered in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) and Dose 2 in the deltoid region of the dominant arm (or right arm). |
| Placebo 3-<9Y Group | PLACEBO_COMPARATOR | Subjects aged at enrolment between 3 and 9 years, 9 years excluded, received 2 doses of saline placebo at Days 0 and 21. The saline placebo was administered intramuscularly, Dose 1 in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) and Dose 2 in the deltoid region of the dominant arm (or right arm). |
| Placebo 9-<18Y Group | PLACEBO_COMPARATOR | Subjects aged at enrolment between 9 and 18 years, 18 years excluded, received 2 doses of saline placebo at Days 0 and 21. The saline placebo was administered intramuscularly, Dose 1 in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) and Dose 2 in the deltoid region of the dominant arm (or right arm). |
| Placebo/Influenza A (H5N1) adjuvanted Group | EXPERIMENTAL | Subjects in this group were those who were administered the saline placebo solution in the Blinded Phase of the study (either in the Placebo 6-\<36M, Placebo 3-\<9Y or Placebo 9-\<18Y Group). These were subjects aged at enrolment between 6 months and 18 years, 18 years excluded, who had received 2 doses of saline placebo at Days 0 and 21 in the Blinded Phase of the study, as per described in the descriptions of the Placebo 6-\<36M, Placebo 3-\<9Y and Placebo 9-\<18Y groups. After consenting to participating to the Unblinded Phase of the study, these subjects received in addition 2 doses of Influenza A (H5N1) Virus monovalent vaccine at Days 385 (Day U0) and Day 385 + 21 days (Day U21). Influenza A (H5N1) Virus monovalent vaccine was administered intramuscularly. Dose 1 of was administered in the deltoid region of the non-dominant arm and Dose 2 in the deltoid region of the dominant arm. |
| Influenza A (H5N1) 18-64Y Group | EXPERIMENTAL | Subjects aged 18-64 years, who received 2 doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted vaccine formulations A. B, or C in approximately equal proportions, at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Placebo 18-64Y Group | PLACEBO_COMPARATOR | Subjects aged 18-64 years, who received 2 doses of placebo at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Influenza A (H5N1) >64Y Group | EXPERIMENTAL | Subjects aged \> 64 years, who received 2 doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted vaccine formulations A. B, or C in approximately equal proportions, at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Placebo >64Y Group | PLACEBO_COMPARATOR | Subjects aged \> 64 years, who received 2 doses of placebo at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Influenza A (H5N1) Group | EXPERIMENTAL | Pooled group of subjects aged \>18 years, who received 2 doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted vaccine formulations A. B, or C in approximately equal proportions, at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Placebo Group | PLACEBO_COMPARATOR | Pooled group of subjects aged \>18 years, who received 2 doses of placebo at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Influenza A (H5N1) 18-60Y Group | EXPERIMENTAL | Subjects aged 18-60 years, who received 2 doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted vaccine formulations A. B, or C in approximately equal proportions, at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Placebo 18-60Y Group | PLACEBO_COMPARATOR | Subjects aged 18-60 years, who received 2 doses of placebo at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Influenza A (H5N1) >60Y Group | EXPERIMENTAL | Subjects aged \>60 years, who received 2 doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted vaccine formulations A. B, or C in approximately equal proportions, at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| Placebo >60Y Group | PLACEBO_COMPARATOR | Subjects aged \> 60 years, who received 2 doses of placebo at Days 0 and 21. The first dose was administered in the deltoid region of the non-dominant arm. The second dose was administered in the deltoid region of the dominant arm. |
| H5N1 Formulation 1 Group | ACTIVE_COMPARATOR | Subjects received 2 primary doses (adjuvanted) at Days 0 and 21 of H5N1 vaccine Formulation 1 and a booster dose (unadjuvanted) at Day 385 of H5N1 vaccine (GSK1557484A). All doses were administered intramuscularly (IM) in anterolateral thigh. |
| H5N1 Formulation 2 Group | EXPERIMENTAL | Subjects received 2 primary doses (adjuvanted) at Days 0 and 21 of H5N1 vaccine Formulation 2 and a booster dose (unadjuvanted) at Day 385 of H5N1 vaccine (GSK1557484A). All doses were administered IM in anterolateral thigh. |
| H5N1 Formulation 3 Group | EXPERIMENTAL | Subjects received 2 primary doses (adjuvanted) at Days 0 and 21 of H5N1 vaccine Formulation 3 and a booster dose (unadjuvanted) at Day 385 of H5N1 vaccine (GSK1557484A). All doses were administered IM in anterolateral thigh. |
| H5N1 Formulation 4 Group | EXPERIMENTAL | Subjects received 2 primary doses (adjuvanted) at Days 0 and 21 of H5N1 vaccine Formulation 4 and a booster dose (unadjuvanted) at Day 385 of H5N1 vaccine (GSK1557484A). All doses were administered IM in anterolateral thigh. |
| H5N1 Formulation 5 Group | EXPERIMENTAL | Subjects received 2 primary doses (adjuvanted) at Days 0 and 21 of H5N1 vaccine Formulation 5 and a booster dose (unadjuvanted) at Day 385 of H5N1 vaccine (GSK1557484A). All doses were administered IM in anterolateral thigh. |
| Influenza A (H5N1) 20-40 Years Group | EXPERIMENTAL | Subjects aged between 20 and 40 years inclusive received 2 doses of Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted at Days 0 and 21 administered intramuscularly in the deltoid region of the non-dominant arm. |
| Influenza A (H5N1) 41-64 Years Group | EXPERIMENTAL | Subjects aged between 41 and 64 years inclusive received 2 doses of Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted at Days 0 and 21 administered intramuscularly in the deltoid region of the non-dominant arm. |
| Influenza A (H5N1) 1 Group | EXPERIMENTAL | Healthy subjects aged between 18 and 64 years at the time of vaccination received two doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted, at Day 0 and Day 21. The vaccine was administered intramuscularly in the deltoid region of the arm. |
| Influenza A (H5N1) 2 Group | EXPERIMENTAL | Healthy subjects aged between 18 and 64 years at the time of vaccination received two doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted, at Day 0 and Day 14. The vaccine was administered intramuscularly in the deltoid region of the arm. |
| Influenza A (H5N1) 3 Group | EXPERIMENTAL | Healthy subjects aged between 18 and 64 years at the time of vaccination received two doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted, at Day 0 and Day 7. The vaccine was administered intramuscularly in the deltoid region of the arm. |
| Influenza A (H5N1) 4 Group | EXPERIMENTAL | Healthy subjects aged between 18 and 64 years at the time of vaccination received two doses of the Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted, at Day 0. The vaccine was administered intramuscularly in the deltoid region of the arm. |
| Name | Type | Description |
|---|---|---|
| Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted (A/Indonesia) | BIOLOGICAL | 2 doses administered intramuscularly (IM) in deltoid region of arm at the Day 0 and Day 21 visits. |
| Influenza A (H5N1) Virus monovalent vaccine | BIOLOGICAL | All subjects will receive 2 doses administered as an intramuscular (IM) injection. |
| Saline placebo | BIOLOGICAL | All subjects will receive 2 doses administered as an intramuscular (IM) injection. |
| Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted | BIOLOGICAL | Two intramuscular injections at Days 0 and 21. |
| Placebo | BIOLOGICAL | Two intramuscular injections at Days 0 and 21. |
| Influenza A (H5N1) Virus monovalent vaccine (GSK1557484A). | BIOLOGICAL | All subjects will receive intramuscularly a two-dose primary series (adjuvanted) at a 21 day interval, and a booster dose (unadjuvanted) at Day 385 of GSK1557484A vaccine. |
Inclusion Criteria: * Subjects who, in the opinion of the investigator can and will comply with the requirements of the protocol. * Male or female adults ≥18 years of age at time of first study vaccination. * Written informed consent obtained from the subject. * Subjects who are at risk of occupati...
Influenza A Virus Monovalent Vaccine is an investigational vaccine being studied for the prevention of influenza. It is a monovalent vaccine designed to protect against a single strain of the influenza A virus. The vaccine is currently in Phase 3 clinical development.
Influenza A Virus Monovalent Vaccine is being developed by GSK plc, a biopharmaceutical company traded on the New York Stock Exchange under the ticker GSK. The company is conducting clinical trials to evaluate the vaccine's safety and immunogenicity in adult and pediatric populations.
Influenza A Virus Monovalent Vaccine is in Phase 3 clinical development. It has completed two clinical trials, including a Phase 2 study in adults and a Phase 3 study in children. The vaccine remains investigational and has not been approved by regulatory authorities.
Influenza A Virus Monovalent Vaccine has completed two clinical trials. NCT00695669 was a Phase 2 study testing different vaccination regimens with an H5N1 vaccine with AS03 in adults aged 18-64 in Canada. NCT01310413 was a Phase 3 study of the monovalent H5N1 vaccine in children aged 6 months to under 18 years in the United States, Canada, and Thailand.
Influenza A Virus Monovalent Vaccine is a monovalent H5N1 vaccine. Clinical trials for this vaccine have evaluated H5N1 influenza vaccine formulations, including regimens with the AS03 adjuvant. The vaccine is designed to target the H5N1 influenza A virus strain.