A Phase 3 interventional study of Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine and Meningococcal polysaccharide (serogroups A,C,Y and W-135) diphtheria toxoid conjugate vaccine in Meningococcal Immunization and Healthy Volunteers, sponsored by Sanofi Pasteur, a Sanofi Company. Completed at 17 sites in 2 countries. Open to participants aged 12 Months and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-03.
Sponsored by Sanofi Pasteur, a Sanofi Company · Phase 3, Interventional, and Prevention
This will be a Phase III, modified double-blind (open-label for toddlers in India), randomized, parallel-group, active-controlled, step-wise, multi-center study to compare and describe the immunogenicity and safety of MenACYW conjugate vaccine when administered as a single dose in healthy adults, adolescents, children, and toddlers in India and a modified double-blind, randomized, parallel-group, active-controlled, multi-center study to compare and describe the immunogenicity and safety of MenACYW conjugate vaccine when administered as a single dose in healthy adolescents and children in RSA.
Study duration per participant is approximately 31 to 45 days
Sanofi Pasteur, a Sanofi Company is the lead sponsor of 366 studies on the registry; 4 are open to participants now.
Of its 94 completed or terminated interventional studies of FDA-regulated products, 73 (78%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
MenACYW conjugate vaccine, 1 vaccination, adults in India aged 18 to 55 years
Biological: Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine
Menactra® conjugate vaccine, 1 vaccination, adults in India aged 18 to 55 years
Biological: Meningococcal polysaccharide (serogroups A,C,Y and W-135) diphtheria toxoid conjugate vaccine
MenACYW conjugate vaccine, 1 vaccination, adults in India aged ≥ 56 years
Biological: Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine
Quadri Meningo™, 1 vaccination, adults in India aged ≥ 56 years
Biological: Meningococcal polysaccharide (serogroups A, C, Y and W-135) vaccine
MenACYW conjugate vaccine, 1 vaccination, children and adolescents in India aged 2 to 17 years
Biological: Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine
Menactra®, 1 vaccination, children and adolescents in India aged 2 to 17 years
Biological: Meningococcal polysaccharide (serogroups A,C,Y and W-135) diphtheria toxoid conjugate vaccine
MenACYW conjugate vaccine, 1 vaccination, children and adolescents in RSA aged 2 to 17 years
Biological: Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine
Menactra®, 1 vaccination, children and adolescents in RSA aged 2 to 17 years
Biological: Meningococcal polysaccharide (serogroups A,C,Y and W-135) diphtheria toxoid conjugate vaccine
Pharmaceutical form: solution for injection; Route of administration: intramuscular, 0.5 mL
Also known as: MenACYW conjugate vaccine
Pharmaceutical form: sterile aqueous solution; Route of administration: intramuscular, 0.5 mL
Also known as: Menactra®
Pharmaceutical form: reconstituted solution for injection; Route of administration: intramuscular, 0.5 mL
Also known as: Quadri Meningo™
Group 5 + 7 and Group 6 + 8: Percentage of Participants Who Achieved Antibody Titers ≥1:8 Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by serum bactericidal assay using human complement (hSBA). Percentages are rounded off to the tenth decimal place. As pre-specified in protocol, the endpoint was assessed in children and adolescents aged 2 to 17 years in India and RSA as combined groups: Group 5 + Group 7 and Group 6 + Group 8 as they received the same dose of MenACYW conjugate vaccine and Menactra® respectively.
Time frame: Day 30 (30 days post-vaccination on Day 0)
Group 1 and Group 2: Geometric Mean Titers (GMTs) of Antibodies Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and serum bactericidal assay using baby rabbit complement (rSBA).
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
Group 1 and Group 2: Percentage of Participants Who Achieved Antibody Titers ≥Pre-defined Thresholds Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. Percentages are rounded off to the tenth decimal place. Percentage of participants who achieved antibody titers ≥1:4 and ≥1:8 by hSBA and ≥1:8 and ≥1:128 by rSBA are reported.
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
Group 3 and Group 4: Geometric Mean Titers of Antibodies Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA.
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
Group 3 and Group 4: Percentage of Participants Who Achieved Antibody Titers ≥Pre-defined Thresholds Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. Percentages are rounded off to the tenth decimal place. Percentage of participants who achieved antibody titers ≥1:4 and ≥1:8 by hSBA and ≥1:8 and ≥1:128 by rSBA are reported.
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
Group 5 + 7 and Group 6 + 8: Geometric Mean Titers of Antibodies Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. As pre-specified in protocol, the endpoint was assessed in children and adolescents aged 2 to 17 years in India and RSA as combined groups: Group 5 + Group 7 and Group 6 + Group 8 as they received the same dose of MenACYW conjugate vaccine and Menactra® respectively.
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
Group 5 and Group 6: Geometric Mean Titers of Antibodies Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA.
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
Group 5 and Group 6: Percentage of Participants Who Achieved Antibody Titers ≥Pre-defined Thresholds Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. Percentages are rounded off to the tenth decimal place. Percentage of participants who achieved antibody titers ≥1:4 and ≥1:8 by hSBA and ≥1:8 and ≥1:128 by rSBA are reported.
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
Group 7 and Group 8: Geometric Mean Titers of Antibodies Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA.
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
Group 7 and Group 8: Percentage of Participants Who Achieved Antibody Titers ≥Pre-defined Thresholds Against Meningococcal Serogroups A, C, Y, and W
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. Percentages are rounded off to the tenth decimal place. Percentage of participants who achieved antibody titers ≥1:4 and ≥1:8 by hSBA and ≥1:8 and ≥1:128 by rSBA are reported.
Time frame: Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0)
This study was conducted at 17 investigational sites: 10 centers in India and 7 centers in the Republic of South Africa (RSA) between 30 December 2019 and 28 January 2023.
| Milestone | Group 1: MenACYW Conjugate Vaccine | Group 2: Menactra® | Group 3: MenACYW Conjugate Vaccine | Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine | Group 5: MenACYW Conjugate Vaccine | Group 6: Menactra® | Group 7: MenACYW Conjugate Vaccine | Group 8: Menactra® |
|---|---|---|---|---|---|---|---|---|
| Started | 98 | 100 | 100 | 100 | 232 | 233 | 233 | 232 |
| Completed | 96 | 100 | 100 | 100 | 224 | 229 | 226 | 220 |
| Not completed | 2 | 0 | 0 | 0 | 8 | 4 | 7 | 12 |
| Withdrew: Protocol deviation | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 5 |
| Withdrew: Withdrawal by subject | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| Withdrew: Withdrawal by parent/guardian | 0 | 0 | 0 | 0 | 8 | 3 | 2 | 7 |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by serum bactericidal assay using human complement (hSBA). Percentages are rounded off to the tenth decimal place. As pre-specified in protocol, the endpoint was assessed in children and adolescents aged 2 to 17 years in India and RSA as combined groups: Group 5 + Group 7 and Group 6 + Group 8 as they received the same dose of MenACYW conjugate vaccine and Menactra® respectively.
| percentage of participants | Group 5 + Group 7: MenACYW Conjugate Vaccine | Group 6 + Group 8: Menactra® |
|---|---|---|
| Serogroup A | 89.6 (86.4 to 92.3) | 83.1 (79.2 to 86.4) |
| Serogroup C | 99.3 (98.0 to 99.9) | 77.7 (73.5 to 81.4) |
| Serogroup Y | 96.6 (94.5 to 98.1) | 85.6 (81.9 to 88.7) |
| Serogroup W | 98.7 (97.1 to 99.5) | 87.6 (84.2 to 90.6) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and serum bactericidal assay using baby rabbit complement (rSBA).
| titer | Group 1: MenACYW Conjugate Vaccine | Group 2: Menactra® |
|---|---|---|
| hSBA: Serogroup A: Day 0 | 7.28 (6.03 to 8.78) | 9.60 (7.68 to 12.0) |
| hSBA: Serogroup A: Day 30 | 52.8 (34.7 to 80.3) | 39.2 (27.8 to 55.3) |
| hSBA: Serogroup C: Day 0 | 6.20 (4.99 to 7.70) | 7.05 (5.53 to 8.99) |
| hSBA: Serogroup C: Day 30 | 551 (365 to 831) | 107 (68.8 to 165) |
| hSBA: Serogroup Y: Day 0 | 5.24 (3.86 to 7.11) | 4.03 (3.09 to 5.25) |
| hSBA: Serogroup Y: Day 30 | 119 (80.2 to 177) | 47.4 (30.7 to 73.1) |
| hSBA: Serogroup W: Day 0 | 4.18 (3.39 to 5.15) | 4.17 (3.39 to 5.14) |
| hSBA: Serogroup W: Day 30 | 106 (72.8 to 153) | 63.1 (44.7 to 89.1) |
| rSBA: Serogroup A: Day 0 | 194 (81.3 to 463) | 64.0 (25.9 to 158) |
| rSBA: Serogroup A: Day 30 | 10644 (7745 to 14629) | 4467 (3428 to 5820) |
| rSBA: Serogroup C: Day 0 | 5.88 (3.51 to 9.86) | 4.88 (3.00 to 7.93) |
| rSBA: Serogroup C: Day 30 | 12227 (7923 to 18868) | 1149 (612 to 2158) |
| rSBA: Serogroup Y: Day 0 | 9.36 (4.33 to 20.2) | 9.40 (4.12 to 21.5) |
| rSBA: Serogroup Y: Day 30 | 5934 (3758 to 9372) | 3534 (2545 to 4909) |
| rSBA: Serogroup W: Day 0 | 15.5 (6.49 to 37.1) | 7.56 (3.49 to 16.4) |
| rSBA: Serogroup W: Day 30 | 16638 (10325 to 26812) | 7732 (4098 to 14589) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. Percentages are rounded off to the tenth decimal place. Percentage of participants who achieved antibody titers ≥1:4 and ≥1:8 by hSBA and ≥1:8 and ≥1:128 by rSBA are reported.
| percentage of participants | Group 1: MenACYW Conjugate Vaccine | Group 2: Menactra® |
|---|---|---|
| hSBA: Serogroup A: Day 0: ≥1:4 | 81.1 (71.7 to 88.4) | 87.9 (79.8 to 93.6) |
| hSBA: Serogroup A: Day 0: ≥1:8 | 61.1 (50.5 to 70.9) | 72.7 (62.9 to 81.2) |
| hSBA: Serogroup A: Day 30: ≥1:4 | 87.2 (78.8 to 93.2) | 93.9 (87.3 to 97.7) |
| hSBA: Serogroup A: Day 30: ≥1:8 | 76.6 (66.7 to 84.7) | 87.9 (79.8 to 93.6) |
| hSBA: Serogroup C: Day 0: ≥1:4 | 69.5 (59.2 to 78.5) | 69.7 (59.6 to 78.5) |
| hSBA: Serogroup C: Day 0: ≥1:8 | 47.4 (37.0 to 57.9) | 50.5 (40.3 to 60.7) |
| hSBA: Serogroup C: Day 30: ≥1:4 | 98.9 (94.3 to 100) | 93.9 (87.3 to 97.7) |
| hSBA: Serogroup C: Day 30: ≥1:8 | 96.8 (91.0 to 99.3) | 88.9 (81.0 to 94.3) |
| hSBA: Serogroup Y: Day 0: ≥1:4 | 38.9 (29.1 to 49.5) | 30.3 (21.5 to 40.4) |
| hSBA: Serogroup Y: Day 0: ≥1:8 | 29.5 (20.6 to 39.7) | 24.2 (16.2 to 33.9) |
| hSBA: Serogroup Y: Day 30: ≥1:4 | 93.7 (86.8 to 97.6) | 82.8 (73.9 to 89.7) |
| hSBA: Serogroup Y: Day 30: ≥1:8 | 92.6 (85.4 to 97.0) | 76.8 (67.2 to 84.7) |
| hSBA: Serogroup W: Day 0: ≥1:4 | 44.2 (34.0 to 54.8) | 44.4 (34.5 to 54.8) |
| hSBA: Serogroup W: Day 0: ≥1:8 | 29.5 (20.6 to 39.7) | 29.3 (20.6 to 39.3) |
| hSBA: Serogroup W: Day 30: ≥1:4 | 96.8 (91.0 to 99.3) | 96.0 (90.0 to 98.9) |
| hSBA: Serogroup W: Day 30: ≥1:8 | 93.6 (86.6 to 97.6) | 90.9 (83.4 to 95.8) |
| rSBA: Serogroup A: Day 0: ≥1:8 | 75.6 (60.5 to 87.1) | 61.7 (46.4 to 75.5) |
| rSBA: Serogroup A: Day 0: ≥1:128 | 62.2 (46.5 to 76.2) | 48.9 (34.1 to 63.9) |
| rSBA: Serogroup A: Day 30: ≥1:8 | 100 (92.1 to 100) | 100 (92.6 to 100) |
| rSBA: Serogroup A: Day 30: ≥1:128 | 100 (92.1 to 100) | 100 (92.6 to 100) |
| rSBA: Serogroup C: Day 0: ≥1:8 | 28.9 (16.4 to 44.3) | 24.5 (13.3 to 38.9) |
| rSBA: Serogroup C: Day 0: ≥1:128 | 11.1 (3.7 to 24.1) | 10.2 (3.4 to 22.2) |
| rSBA: Serogroup C: Day 30: ≥1:8 | 100 (92.1 to 100) | 95.8 (85.7 to 99.5) |
| rSBA: Serogroup C: Day 30: ≥1:128 | 100 (92.1 to 100) | 89.6 (77.3 to 96.5) |
| rSBA: Serogroup Y: Day 0: ≥1:8 | 29.5 (16.8 to 45.2) | 25.6 (13.5 to 41.2) |
| rSBA: Serogroup Y: Day 0: ≥1:128 | 25.0 (13.2 to 40.3) | 23.3 (11.8 to 38.6) |
| rSBA: Serogroup Y: Day 30: ≥1:8 | 97.7 (87.7 to 99.9) | 100 (92.5 to 100) |
| rSBA: Serogroup Y: Day 30: ≥1:128 | 97.7 (87.7 to 99.9) | 100 (92.5 to 100) |
| rSBA: Serogroup W: Day 0: ≥1:8 | 35.6 (21.9 to 51.2) | 20.4 (10.2 to 34.3) |
| rSBA: Serogroup W: Day 0: ≥1:128 | 31.1 (18.2 to 46.6) | 20.4 (10.2 to 34.3) |
| rSBA: Serogroup W: Day 30: ≥1:8 | 100 (92.1 to 100) | 97.9 (88.9 to 99.9) |
| rSBA: Serogroup W: Day 30: ≥1:128 | 100 (92.1 to 100) | 97.9 (88.9 to 99.9) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA.
| titer | Group 3: MenACYW Conjugate Vaccine | Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine |
|---|---|---|
| hSBA: Serogroup A: Day 0 | 15.3 (12.2 to 19.3) | 12.5 (10.2 to 15.4) |
| hSBA: Serogroup A: Day 30 | 56.6 (38.2 to 83.9) | 36.2 (26.8 to 48.8) |
| hSBA: Serogroup C: Day 0 | 8.00 (6.18 to 10.4) | 8.00 (6.13 to 10.4) |
| hSBA: Serogroup C: Day 30 | 393 (255 to 606) | 159 (102 to 248) |
| hSBA: Serogroup Y: Day 0 | 6.36 (4.57 to 8.86) | 6.97 (5.03 to 9.68) |
| hSBA: Serogroup Y: Day 30 | 197 (127 to 303) | 55.4 (35.5 to 86.4) |
| hSBA: Serogroup W: Day 0 | 4.42 (3.53 to 5.54) | 5.66 (4.40 to 7.27) |
| hSBA: Serogroup W: Day 30 | 90.8 (60.4 to 137) | 34.6 (23.5 to 51.2) |
| rSBA: Serogroup A: Day 0 | 83.0 (37.0 to 186) | 46.3 (20.1 to 106) |
| rSBA: Serogroup A: Day 30 | 5834 (3730 to 9124) | 4677 (2935 to 7455) |
| rSBA: Serogroup C: Day 0 | 6.47 (3.69 to 11.3) | 5.53 (3.06 to 9.99) |
| rSBA: Serogroup C: Day 30 | 9304 (5532 to 15649) | 3283 (1680 to 6415) |
| rSBA: Serogroup Y: Day 0 | 6.86 (3.33 to 14.1) | 8.24 (3.94 to 17.3) |
| rSBA: Serogroup Y: Day 30 | 4274 (2640 to 6917) | 1119 (529 to 2366) |
| rSBA: Serogroup W: Day 0 | 11.6 (5.55 to 24.4) | 12.4 (5.04 to 30.4) |
| rSBA: Serogroup W: Day 30 | 6626 (3243 to 13539) | 2304 (925 to 5739) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. Percentages are rounded off to the tenth decimal place. Percentage of participants who achieved antibody titers ≥1:4 and ≥1:8 by hSBA and ≥1:8 and ≥1:128 by rSBA are reported.
| percentage of participants | Group 3: MenACYW Conjugate Vaccine | Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine |
|---|---|---|
| hSBA: Serogroup A: Day 0: ≥1:4 | 94.8 (88.4 to 98.3) | 93.8 (86.9 to 97.7) |
| hSBA: Serogroup A: Day 0: ≥1:8 | 82.5 (73.4 to 89.4) | 77.1 (67.4 to 85.0) |
| hSBA: Serogroup A: Day 30: ≥1:4 | 89.6 (81.7 to 94.9) | 96.9 (91.1 to 99.4) |
| hSBA: Serogroup A: Day 30: ≥1:8 | 82.3 (73.2 to 89.3) | 86.5 (78.0 to 92.6) |
| hSBA: Serogroup C: Day 0: ≥1:4 | 71.1 (61.0 to 79.9) | 75.0 (65.1 to 83.3) |
| hSBA: Serogroup C: Day 0: ≥1:8 | 53.6 (43.2 to 63.8) | 50.0 (39.6 to 60.4) |
| hSBA: Serogroup C: Day 30: ≥1:4 | 97.9 (92.7 to 99.7) | 92.7 (85.6 to 97.0) |
| hSBA: Serogroup C: Day 30: ≥1:8 | 95.9 (89.8 to 98.9) | 89.6 (81.7 to 94.9) |
| hSBA: Serogroup Y: Day 0: ≥1:4 | 45.4 (35.2 to 55.8) | 51.0 (40.6 to 61.4) |
| hSBA: Serogroup Y: Day 0: ≥1:8 | 36.1 (26.6 to 46.5) | 40.6 (30.7 to 51.1) |
| hSBA: Serogroup Y: Day 30: ≥1:4 | 93.8 (87.0 to 97.7) | 83.3 (74.4 to 90.2) |
| hSBA: Serogroup Y: Day 30: ≥1:8 | 93.8 (87.0 to 97.7) | 79.2 (69.7 to 86.8) |
| hSBA: Serogroup W: Day 0: ≥1:4 | 45.4 (35.2 to 55.8) | 54.2 (43.7 to 64.4) |
| hSBA: Serogroup W: Day 0: ≥1:8 | 30.9 (21.9 to 41.1) | 38.5 (28.8 to 49.0) |
| hSBA: Serogroup W: Day 30: ≥1:4 | 91.8 (84.4 to 96.4) | 90.6 (82.9 to 95.6) |
| hSBA: Serogroup W: Day 30: ≥1:8 | 89.7 (81.9 to 94.9) | 79.2 (69.7 to 86.8) |
| rSBA: Serogroup A: Day 0: ≥1:8 | 68.8 (53.7 to 81.3) | 55.3 (40.1 to 69.8) |
| rSBA: Serogroup A: Day 0: ≥1:128 | 56.3 (41.2 to 70.5) | 46.8 (32.1 to 61.9) |
| rSBA: Serogroup A: Day 30: ≥1:8 | 98.0 (89.1 to 99.9) | 100 (92.5 to 100) |
| rSBA: Serogroup A: Day 30: ≥1:128 | 98.0 (89.1 to 99.9) | 97.9 (88.7 to 99.9) |
| rSBA: Serogroup C: Day 0: ≥1:8 | 30.6 (18.3 to 45.4) | 21.3 (10.7 to 35.7) |
| rSBA: Serogroup C: Day 0: ≥1:128 | 16.3 (7.3 to 29.7) | 10.6 (3.5 to 23.1) |
| rSBA: Serogroup C: Day 30: ≥1:8 | 98.0 (89.1 to 99.9) | 93.6 (82.5 to 98.7) |
| rSBA: Serogroup C: Day 30: ≥1:128 | 98.0 (89.1 to 99.9) | 93.6 (82.5 to 98.7) |
| rSBA: Serogroup Y: Day 0: ≥1:8 | 20.0 (9.6 to 34.6) | 26.1 (14.3 to 41.1) |
| rSBA: Serogroup Y: Day 0: ≥1:128 | 20.0 (9.6 to 34.6) | 21.7 (10.9 to 36.4) |
| rSBA: Serogroup Y: Day 30: ≥1:8 | 98.0 (89.1 to 99.9) | 89.4 (76.9 to 96.5) |
| rSBA: Serogroup Y: Day 30: ≥1:128 | 98.0 (89.1 to 99.9) | 89.4 (76.9 to 96.5) |
| rSBA: Serogroup W: Day 0: ≥1:8 | 33.3 (20.4 to 48.4) | 30.4 (17.7 to 45.8) |
| rSBA: Serogroup W: Day 0: ≥1:128 | 31.3 (18.7 to 46.3) | 28.3 (16.0 to 43.5) |
| rSBA: Serogroup W: Day 30: ≥1:8 | 95.9 (86.0 to 99.5) | 89.4 (76.9 to 96.5) |
| rSBA: Serogroup W: Day 30: ≥1:128 | 93.9 (83.1 to 98.7) | 87.2 (74.3 to 95.2) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. As pre-specified in protocol, the endpoint was assessed in children and adolescents aged 2 to 17 years in India and RSA as combined groups: Group 5 + Group 7 and Group 6 + Group 8 as they received the same dose of MenACYW conjugate vaccine and Menactra® respectively.
| titer | Group 5 + Group 7: MenACYW Conjugate Vaccine | Group 6 + Group 8: Menactra® |
|---|---|---|
| hSBA: Serogroup A: Day 0 | 7.40 (6.79 to 8.07) | 7.21 (6.66 to 7.80) |
| hSBA: Serogroup A: Day 30 | 56.1 (48.5 to 65.0) | 36.3 (31.0 to 42.5) |
| hSBA: Serogroup C: Day 0 | 3.97 (3.63 to 4.34) | 3.78 (3.46 to 4.13) |
| hSBA: Serogroup C: Day 30 | 600 (521 to 692) | 47.3 (38.3 to 58.4) |
| hSBA: Serogroup Y: Day 0 | 3.50 (3.13 to 3.91) | 3.50 (3.14 to 3.91) |
| hSBA: Serogroup Y: Day 30 | 167 (145 to 191) | 46.2 (39.3 to 54.3) |
| hSBA: Serogroup W: Day 0 | 4.31 (3.88 to 4.78) | 4.04 (3.65 to 4.48) |
| hSBA: Serogroup W: Day 30 | 121 (106 to 137) | 35.4 (30.4 to 41.1) |
| rSBA: Serogroup A: Day 0 | 308 (199 to 478) | 387 (260 to 577) |
| rSBA: Serogroup A: Day 30 | 10561 (9223 to 12094) | 8313 (7275 to 9499) |
| rSBA: Serogroup C: Day 0 | 3.56 (2.91 to 4.36) | 3.73 (3.02 to 4.62) |
| rSBA: Serogroup C: Day 30 | 14430 (11923 to 17463) | 1199 (869 to 1655) |
| rSBA: Serogroup Y: Day 0 | 17.3 (11.5 to 26.2) | 21.9 (14.4 to 33.4) |
| rSBA: Serogroup Y: Day 30 | 15404 (13409 to 17696) | 5966 (4850 to 7339) |
| rSBA: Serogroup W: Day 0 | 7.01 (5.00 to 9.83) | 7.46 (5.36 to 10.4) |
| rSBA: Serogroup W: Day 30 | 19644 (16338 to 23618) | 6598 (5160 to 8437) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA.
| titer | Group 5: MenACYW Conjugate Vaccine | Group 6: Menactra® |
|---|---|---|
| hSBA: Serogroup A: Day 0 | 7.33 (6.50 to 8.26) | 7.71 (6.94 to 8.58) |
| hSBA: Serogroup A: Day 30 | 70.3 (56.5 to 87.6) | 40.9 (32.8 to 51.1) |
| hSBA: Serogroup C: Day 0 | 3.36 (3.00 to 3.76) | 3.17 (2.84 to 3.55) |
| hSBA: Serogroup C: Day 30 | 595 (494 to 716) | 38.3 (28.4 to 51.6) |
| hSBA: Serogroup Y: Day 0 | 3.32 (2.84 to 3.88) | 3.12 (2.70 to 3.60) |
| hSBA: Serogroup Y: Day 30 | 119 (97.4 to 145) | 27.1 (21.7 to 33.8) |
| hSBA: Serogroup W: Day 0 | 3.23 (2.86 to 3.65) | 2.85 (2.56 to 3.17) |
| hSBA: Serogroup W: Day 30 | 92.8 (78.7 to 109) | 24.3 (19.8 to 29.7) |
| rSBA: Serogroup A: Day 0 | 159 (81.9 to 310) | 337 (188 to 605) |
| rSBA: Serogroup A: Day 30 | 11462 (9425 to 13938) | 6877 (5755 to 8217) |
| rSBA: Serogroup C: Day 0 | 3.09 (2.39 to 4.01) | 2.98 (2.40 to 3.70) |
| rSBA: Serogroup C: Day 30 | 11139 (8843 to 14030) | 659 (413 to 1052) |
| rSBA: Serogroup Y: Day 0 | 11.4 (6.25 to 20.6) | 18.8 (10.4 to 33.7) |
| rSBA: Serogroup Y: Day 30 | 15696 (12565 to 19609) | 4522 (3316 to 6168) |
| rSBA: Serogroup W: Day 0 | 6.62 (4.10 to 10.7) | 7.78 (4.78 to 12.7) |
| rSBA: Serogroup W: Day 30 | 19037 (14748 to 24572) | 4332 (2969 to 6320) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. Percentages are rounded off to the tenth decimal place. Percentage of participants who achieved antibody titers ≥1:4 and ≥1:8 by hSBA and ≥1:8 and ≥1:128 by rSBA are reported.
| percentage of participants | Group 5: MenACYW Conjugate Vaccine | Group 6: Menactra® |
|---|---|---|
| hSBA: Serogroup A: Day 0: ≥1:4 | 85.1 (79.8 to 89.5) | 91.2 (86.8 to 94.6) |
| hSBA: Serogroup A: Day 0: ≥1:8 | 60.8 (54.1 to 67.3) | 63.6 (57.0 to 69.8) |
| hSBA: Serogroup A: Day 30: ≥1:4 | 92.3 (87.9 to 95.4) | 94.7 (91.0 to 97.3) |
| hSBA: Serogroup A: Day 30: ≥1:8 | 89.5 (84.7 to 93.3) | 83.8 (78.3 to 88.3) |
| hSBA: Serogroup C: Day 0: ≥1:4 | 37.8 (31.4 to 44.6) | 30.7 (24.8 to 37.1) |
| hSBA: Serogroup C: Day 0: ≥1:8 | 19.8 (14.8 to 25.7) | 18.4 (13.6 to 24.1) |
| hSBA: Serogroup C: Day 30: ≥1:4 | 99.5 (97.5 to 100) | 82.9 (77.4 to 87.5) |
| hSBA: Serogroup C: Day 30: ≥1:8 | 99.5 (97.5 to 100) | 72.8 (66.5 to 78.5) |
| hSBA: Serogroup Y: Day 0: ≥1:4 | 21.2 (16.0 to 27.1) | 18.9 (14.0 to 24.6) |
| hSBA: Serogroup Y: Day 0: ≥1:8 | 16.2 (11.6 to 21.7) | 13.6 (9.4 to 18.7) |
| hSBA: Serogroup Y: Day 30: ≥1:4 | 94.1 (90.2 to 96.8) | 83.8 (78.3 to 88.3) |
| hSBA: Serogroup Y: Day 30: ≥1:8 | 93.7 (89.6 to 96.5) | 76.8 (70.7 to 82.1) |
| hSBA: Serogroup W: Day 0: ≥1:4 | 27.9 (22.1 to 34.3) | 20.2 (15.2 to 26.0) |
| hSBA: Serogroup W: Day 0: ≥1:8 | 18.9 (14.0 to 24.7) | 13.6 (9.4 to 18.7) |
| hSBA: Serogroup W: Day 30: ≥1:4 | 99.1 (96.8 to 99.9) | 86.8 (81.8 to 90.9) |
| hSBA: Serogroup W: Day 30: ≥1:8 | 98.2 (95.5 to 99.5) | 82.0 (76.4 to 86.8) |
| rSBA: Serogroup A: Day 0: ≥1:8 | 66.3 (55.7 to 75.8) | 76.5 (66.9 to 84.5) |
| rSBA: Serogroup A: Day 0: ≥1:128 | 62.0 (51.2 to 71.9) | 73.5 (63.6 to 81.9) |
| rSBA: Serogroup A: Day 30: ≥1:8 | 100 (96.3 to 100) | 100 (96.3 to 100) |
| rSBA: Serogroup A: Day 30: ≥1:128 | 100 (96.3 to 100) | 100 (96.3 to 100) |
| rSBA: Serogroup C: Day 0: ≥1:8 | 11.3 (5.8 to 19.4) | 13.1 (7.2 to 21.4) |
| rSBA: Serogroup C: Day 0: ≥1:128 | 5.2 (1.7 to 11.6) | 4.0 (1.1 to 10.0) |
| rSBA: Serogroup C: Day 30: ≥1:8 | 100 (96.3 to 100) | 90.9 (83.4 to 95.8) |
| rSBA: Serogroup C: Day 30: ≥1:128 | 100 (96.3 to 100) | 85.9 (77.4 to 92.0) |
| rSBA: Serogroup Y: Day 0: ≥1:8 | 28.7 (19.5 to 39.4) | 40.7 (30.5 to 51.5) |
| rSBA: Serogroup Y: Day 0: ≥1:128 | 28.7 (19.5 to 39.4) | 38.5 (28.4 to 49.2) |
| rSBA: Serogroup Y: Day 30: ≥1:8 | 100 (96.3 to 100) | 98.0 (92.8 to 99.8) |
| rSBA: Serogroup Y: Day 30: ≥1:128 | 100 (96.3 to 100) | 98.0 (92.8 to 99.8) |
| rSBA: Serogroup W: Day 0: ≥1:8 | 21.1 (13.4 to 30.6) | 24.5 (16.4 to 34.2) |
| rSBA: Serogroup W: Day 0: ≥1:128 | 21.1 (13.4 to 30.6) | 24.5 (16.4 to 34.2) |
| rSBA: Serogroup W: Day 30: ≥1:8 | 100 (96.3 to 100) | 98.0 (92.9 to 99.8) |
| rSBA: Serogroup W: Day 30: ≥1:128 | 100 (96.3 to 100) | 97.0 (91.4 to 99.4) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA.
| titer | Group 7: MenACYW Conjugate Vaccine | Group 8: Menactra® |
|---|---|---|
| hSBA: Serogroup A: Day 0 | 7.47 (6.59 to 8.47) | 6.71 (5.97 to 7.55) |
| hSBA: Serogroup A: Day 30 | 44.9 (37.1 to 54.4) | 31.9 (25.5 to 40.0) |
| hSBA: Serogroup C: Day 0 | 4.69 (4.10 to 5.36) | 4.55 (3.97 to 5.20) |
| hSBA: Serogroup C: Day 30 | 606 (488 to 751) | 59.2 (44.0 to 79.7) |
| hSBA: Serogroup Y: Day 0 | 3.69 (3.13 to 4.34) | 3.96 (3.35 to 4.69) |
| hSBA: Serogroup Y: Day 30 | 233 (195 to 279) | 81.5 (66.0 to 101) |
| hSBA: Serogroup W: Day 0 | 5.74 (4.89 to 6.74) | 5.85 (4.97 to 6.88) |
| hSBA: Serogroup W: Day 30 | 157 (129 to 191) | 52.5 (42.3 to 65.2) |
| rSBA: Serogroup A: Day 0 | 589 (338 to 1026) | 450 (260 to 778) |
| rSBA: Serogroup A: Day 30 | 9706 (8032 to 11729) | 10242 (8432 to 12440) |
| rSBA: Serogroup C: Day 0 | 4.12 (3.00 to 5.66) | 4.77 (3.28 to 6.93) |
| rSBA: Serogroup C: Day 30 | 18848 (13953 to 25460) | 2317 (1544 to 3476) |
| rSBA: Serogroup Y: Day 0 | 25.6 (14.6 to 45.2) | 25.7 (13.9 to 47.3) |
| rSBA: Serogroup Y: Day 30 | 15108 (12775 to 17865) | 8067 (6207 to 10483) |
| rSBA: Serogroup W: Day 0 | 7.43 (4.57 to 12.1) | 7.14 (4.55 to 11.2) |
| rSBA: Serogroup W: Day 30 | 20290 (15479 to 26598) | 10481 (7890 to 13924) |
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by hSBA and rSBA. Percentages are rounded off to the tenth decimal place. Percentage of participants who achieved antibody titers ≥1:4 and ≥1:8 by hSBA and ≥1:8 and ≥1:128 by rSBA are reported.
| percentage of participants | Group 7: MenACYW Conjugate Vaccine | Group 8: Menactra® |
|---|---|---|
| hSBA: Serogroup A: Day 0: ≥1:4 | 88.8 (83.9 to 92.6) | 86.6 (81.4 to 90.9) |
| hSBA: Serogroup A: Day 0: ≥1:8 | 61.0 (54.2 to 67.4) | 57.6 (50.7 to 64.3) |
| hSBA: Serogroup A: Day 30: ≥1:4 | 96.9 (93.6 to 98.7) | 93.5 (89.3 to 96.4) |
| hSBA: Serogroup A: Day 30: ≥1:8 | 89.7 (84.9 to 93.3) | 82.3 (76.6 to 87.2) |
| hSBA: Serogroup C: Day 0: ≥1:4 | 58.3 (51.5 to 64.8) | 57.1 (50.3 to 63.8) |
| hSBA: Serogroup C: Day 0: ≥1:8 | 32.3 (26.2 to 38.9) | 30.4 (24.4 to 37.0) |
| hSBA: Serogroup C: Day 30: ≥1:4 | 99.6 (97.5 to 100) | 93.0 (88.8 to 96.0) |
| hSBA: Serogroup C: Day 30: ≥1:8 | 99.1 (96.8 to 99.9) | 82.8 (77.1 to 87.6) |
| hSBA: Serogroup Y: Day 0: ≥1:4 | 28.1 (22.2 to 34.5) | 32.3 (26.1 to 38.9) |
| hSBA: Serogroup Y: Day 0: ≥1:8 | 21.3 (16.1 to 27.3) | 25.3 (19.7 to 31.7) |
| hSBA: Serogroup Y: Day 30: ≥1:4 | 99.6 (97.5 to 100) | 95.8 (92.2 to 98.1) |
| hSBA: Serogroup Y: Day 30: ≥1:8 | 99.6 (97.5 to 100) | 94.9 (91.0 to 97.4) |
| hSBA: Serogroup W: Day 0: ≥1:4 | 53.4 (46.6 to 60.1) | 55.3 (48.4 to 62.0) |
| hSBA: Serogroup W: Day 0: ≥1:8 | 42.2 (35.6 to 48.9) | 41.0 (34.4 to 47.9) |
| hSBA: Serogroup W: Day 30: ≥1:4 | 99.1 (96.8 to 99.9) | 94.9 (91.1 to 97.4) |
| hSBA: Serogroup W: Day 30: ≥1:8 | 99.1 (96.8 to 99.9) | 93.5 (89.4 to 96.4) |
| rSBA: Serogroup A: Day 0: ≥1:8 | 84.0 (75.0 to 90.8) | 83.5 (74.3 to 90.5) |
| rSBA: Serogroup A: Day 0: ≥1:128 | 81.9 (72.6 to 89.1) | 80.2 (70.6 to 87.8) |
| rSBA: Serogroup A: Day 30: ≥1:8 | 100 (96.2 to 100) | 100 (96.0 to 100) |
| rSBA: Serogroup A: Day 30: ≥1:128 | 100 (96.2 to 100) | 100 (96.0 to 100) |
| rSBA: Serogroup C: Day 0: ≥1:8 | 19.1 (11.8 to 28.6) | 19.8 (12.2 to 29.4) |
| rSBA: Serogroup C: Day 0: ≥1:128 | 6.4 (2.4 to 13.4) | 9.9 (4.6 to 17.9) |
| rSBA: Serogroup C: Day 30: ≥1:8 | 100 (96.2 to 100) | 98.9 (94.0 to 100) |
| rSBA: Serogroup C: Day 30: ≥1:128 | 100 (96.2 to 100) | 96.7 (90.6 to 99.3) |
| rSBA: Serogroup Y: Day 0: ≥1:8 | 47.9 (37.5 to 58.4) | 46.2 (35.6 to 56.9) |
| rSBA: Serogroup Y: Day 0: ≥1:128 | 46.8 (36.4 to 57.4) | 40.7 (30.5 to 51.5) |
| rSBA: Serogroup Y: Day 30: ≥1:8 | 100 (96.2 to 100) | 98.9 (94.0 to 100) |
| rSBA: Serogroup Y: Day 30: ≥1:128 | 100 (96.2 to 100) | 98.9 (94.0 to 100) |
| rSBA: Serogroup W: Day 0: ≥1:8 | 24.5 (16.2 to 34.4) | 26.4 (17.7 to 36.7) |
| rSBA: Serogroup W: Day 0: ≥1:128 | 22.3 (14.4 to 32.1) | 23.1 (14.9 to 33.1) |
| rSBA: Serogroup W: Day 30: ≥1:8 | 100 (96.2 to 100) | 100 (96.0 to 100) |
| rSBA: Serogroup W: Day 30: ≥1:128 | 100 (96.2 to 100) | 100 (96.0 to 100) |
Collected over From the first study vaccine administration (Day 0) up to 30 days post-vaccination on Day 0, mean study subject duration was 33 days for Groups 1 to 4, 34 days for Groups 5 and 6, and 35 days for Groups 7 and 8.. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Group 1: MenACYW Conjugate Vaccine | 0/98 (0%) | 1/98 (1%) | 32/98 (32.7%) |
| Group 2: Menactra® | 0/100 (0%) | 0/100 (0%) | 26/100 (26%) |
| Group 3: MenACYW Conjugate Vaccine | 0/100 (0%) | 0/100 (0%) | 18/100 (18%) |
| Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine | 0/100 (0%) | 0/100 (0%) | 21/100 (21%) |
| Group 5: MenACYW Conjugate Vaccine | 0/232 (0%) | 1/232 (0.4%) | 81/232 (34.9%) |
| Group 6: Menactra® | 0/232 (0%) | 0/232 (0%) | 43/232 (18.5%) |
| Group 7: MenACYW Conjugate Vaccine | 0/229 (0%) | 0/229 (0%) | 115/229 (50.2%) |
| Group 8: Menactra® | 0/227 (0%) | 0/227 (0%) | 128/227 (56.4%) |
| Event | Group 1: MenACYW Conjugate Vaccine | Group 2: Menactra® | Group 3: MenACYW Conjugate Vaccine | Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine | Group 5: MenACYW Conjugate Vaccine | Group 6: Menactra® | Group 7: MenACYW Conjugate Vaccine | Group 8: Menactra® |
|---|---|---|---|---|---|---|---|---|
| Covid-19Infections and infestations | 1/98 | 0/100 | 0/100 | 0/100 | 0/232 | 0/232 | 0/229 | 0/227 |
| Dengue FeverInfections and infestations | 0/98 | 0/100 | 0/100 | 0/100 | 1/232 | 0/232 | 0/229 | 0/227 |
| Event | Group 1: MenACYW Conjugate Vaccine | Group 2: Menactra® | Group 3: MenACYW Conjugate Vaccine | Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine | Group 5: MenACYW Conjugate Vaccine | Group 6: Menactra® | Group 7: MenACYW Conjugate Vaccine | Group 8: Menactra® |
|---|---|---|---|---|---|---|---|---|
| Injection Site PainGeneral disorders | 27/98 | 24/100 | 9/100 | 14/100 | 52/232 | 29/232 | 85/229 | 82/227 |
| HeadacheNervous system disorders | 6/98 | 6/100 | 3/100 | 3/100 | 13/232 | 3/232 | 56/229 | 57/227 |
| MyalgiaMusculoskeletal and connective tissue disorders | 5/98 | 6/100 | 2/100 | 0/100 | 7/232 | 3/232 | 46/229 | 49/227 |
| MalaiseGeneral disorders | 6/98 | 5/100 | 1/100 | 1/100 | 11/232 | 4/232 | 45/229 | 44/227 |
| Injection Site SwellingGeneral disorders | 1/98 | 0/100 | 0/100 | 2/100 | 1/232 | 1/232 | 25/229 | 37/227 |
| PyrexiaGeneral disorders | 5/98 | 2/100 | 4/100 | 4/100 | 37/232 | 16/232 | 8/229 | 8/227 |
| Injection Site ErythemaGeneral disorders | 1/98 | 0/100 | 0/100 | 1/100 | 1/232 | 0/232 | 28/229 | 27/227 |
Randomized study participants included all enrolled participants for whom an injection group had been allocated and who had any available data in case report form.
| Age, Continuous(years) | Group 1: MenACYW Conjugate Vaccine | Group 2: Menactra® | Group 3: MenACYW Conjugate Vaccine | Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine | Group 5: MenACYW Conjugate Vaccine | Group 6: Menactra® | Group 7: MenACYW Conjugate Vaccine | Group 8: Menactra® | Total |
|---|---|---|---|---|---|---|---|---|---|
| Mean | 36.7 ± 9.21 | 34.8 ± 9.05 | 61.7 ± 6.09 | 61.1 ± 5.61 | 9.39 ± 4.19 | 9.34 ± 4.10 | 9.45 ± 4.01 | 9.19 ± 4.19 | 21.1 ± 20.1 |
| Sex: Female, Male(Participants) | Group 1: MenACYW Conjugate Vaccine | Group 2: Menactra® | Group 3: MenACYW Conjugate Vaccine | Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine | Group 5: MenACYW Conjugate Vaccine | Group 6: Menactra® | Group 7: MenACYW Conjugate Vaccine | Group 8: Menactra® | Total |
|---|---|---|---|---|---|---|---|---|---|
| Female | 30 | 31 | 24 | 31 | 101 | 118 | 123 | 110 | 568 |
| Male | 68 | 69 | 76 | 69 | 131 | 115 | 110 | 122 | 760 |
| Race/Ethnicity, Customized(Participants) | Group 1: MenACYW Conjugate Vaccine | Group 2: Menactra® | Group 3: MenACYW Conjugate Vaccine | Group 4: Quadri Meningo™/Locally Available Licensed Meningococcal Vaccine | Group 5: MenACYW Conjugate Vaccine | Group 6: Menactra® | Group 7: MenACYW Conjugate Vaccine | Group 8: Menactra® | Total |
|---|---|---|---|---|---|---|---|---|---|
| Asian | 98 | 100 | 100 | 100 | 232 | 233 | 0 | 0 | 863 |
| Black or African American | 0 | 0 | 0 | 0 | 0 | 0 | 142 | 139 | 281 |
| White | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 10 | 19 |
| Not Reported | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 9 |
| Unknown | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 9 | 15 |
| Mixed Origin | 0 | 0 | 0 | 0 | 0 | 0 | 70 | 71 | 141 |
Documents are hosted by the registry — open the source record to download them.
Plan to share: Yes — Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org
This study is completed, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Sanofi Pasteur, a Sanofi Company