A Phase 3 interventional study of Meningococcal ACWY-CRM conjugate vaccine and Meningococcal ACWY-PS polysaccharide vaccine in Meningococcal Disease, sponsored by Novartis Vaccines. Completed at 3 sites in Argentina. Open to participants aged 2 Years to 10 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-10-09.
Sponsored by Novartis Vaccines · Phase 3, Interventional, and Prevention
Safety and immunogenicity of meningococcal ACWY conjugate versus polysaccharide vaccine in children 2 to 10 years of age
219 studies on the registry are indexed under Meningococcal Infections; 6 are open to participants now.
This study's enrollment of 1,500 is above the median of 450 across 190 interventional studies indexed under Meningococcal Infections.
Browse Meningococcal Infections studies →Novartis Vaccines is the lead sponsor of 161 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Individuals not eligible to be enrolled into the study were those:
Subjects ≥2 to ≤10 years of age received one dose of a quadrivalent meningococcal conjugate vaccine (MenACWY-CRM)
Biological: Meningococcal ACWY-CRM conjugate vaccine
Subjects ≥2 to ≤10 years of age received one dose of a quadrivalent meningococcal polysaccharide (PS) vaccine (MenACWY-PS)
Biological: Meningococcal ACWY-PS polysaccharide vaccine
MenACWY-CRM vaccine was obtained by extemporaneous mixing of the lyophilized MenA component to be resuspended with the liquid MenCWY component. One dose (0.5 mL) was administered by IM injection in the deltoid area of the arm without a BCG scar.
MenACWY-PS vaccine was supplied as a single dose (one vial of vaccine and one vial of diluent). One dose (0.5 mL) of MenACWY-PS vaccine was administered by SC injection in the deltoid area of the arm without a BCG scar.
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PS
Immunogenicity was measured as the percentage of subjects with hSBA seroresponse, directed against each of meningococcal serogroups A, C, W and Y, evaluated by serum bactericidal assay using human complement (hSBA), one month after vaccination (day 29)with MenACWY-CRM or MenACWY-PS vaccine. Seroresponse was defined as: 1. for subjects with a prevaccination hSBA titer \<1:4, a postvaccination hSBA titer ≥1:8; 2. for subjects with a prevaccination hSBA titer ≥1:4, an increase in hSBA titer of at least four times the prevaccination titer.
Time frame: 1 month after vaccination (day 29)
Number of Subjects With At Least One Severe Systemic Reaction to MenACWY-CRM or MenACWY-PS Within 7 Days Postvaccination
Safety was assessed in terms of the number of subjects who reported at least one severe systemic reaction after vaccination with MenACWY-CRM or MenACWY-PS from day 1 to day 7 after vaccination.
Time frame: Day 1 to 7 postvaccination
Percentage of Subjects With hSBA Titers ≥1:4 and ≥1:8 Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PS
Immunogenicity was measured as the percentage of subjects who achieved hSBA titers ≥1:4 and ≥1:8 against each of four meningococcal serogroups A, C, W and Y at baseline (day 1) and one month (day 29)after one vaccination with MenACWY-CRM or MenACWY-PS.
Time frame: Day 1 and 29
The hSBA Geometric Mean Titers Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PS
The immune response was measured as the hSBA geometric mean titers (GMTs) directed against each of four meningococcal serogroups A, C, W and Y at baseline (day 1) and one month(day 29) after one vaccination with MenACWY-CRM or MenACWY-PS.
Time frame: Day 1 and 29
Percentage of Subjects With Persisting hSBA Titers ≥1:4 and ≥1:8 Against Serogroups A, C, W and Y at Day 181 After Vaccination With MenACWY-CRM or MenACWY-PS
The persistence of immune response was measured as the percentage of subjects with hSBA titers ≥1:4 and ≥1:8 against each of four meningococcal serogroups A, C, W and Y at day 181 after vaccination with MenACWY-CRM or MenACWY-PS.
Time frame: Day 181
The hSBA Geometric Mean Titers Persisting Against Meningococcal Serogroups A, C, W and Y at Day 181 After Vaccination With MenACWY-CRM or MenACWY-PS
The persistence of immune response was measured in terms of the hSBA GMTs persisting at day 181 against each of four meningococcal serogroups A, C, W and Y after vaccination with MenACWY-CRM or MenACWY-PS
Time frame: Day 181
Number of Subjects Reporting Local and Systemic Reactions and Axillary Temperature During 7-Day Period After Vaccination With MenACWY-CRM or MenACWY-PS
Safety was assessed as the number of subjects who reported local and systemic reactions and axillary temperature during day 1 to day 7 after vaccination with MenACWY-CRM or MenACWY-PS.
Time frame: Day 1 to 7 postvaccination
Subjects were enrolled at 3 study centers in Argentina.
| Milestone | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| Started | 950 | 550 |
| Completed | 944 | 546 |
| Not completed | 6 | 4 |
| Withdrew: Withdrawal by subject | 6 | 4 |
Immunogenicity was measured as the percentage of subjects with hSBA seroresponse, directed against each of meningococcal serogroups A, C, W and Y, evaluated by serum bactericidal assay using human complement (hSBA), one month after vaccination (day 29)with MenACWY-CRM or MenACWY-PS vaccine. Seroresponse was defined as: 1. for subjects with a prevaccination hSBA titer \<1:4, a postvaccination hSBA titer ≥1:8; 2. for subjects with a prevaccination hSBA titer ≥1:4, an increase in hSBA titer of at least four times the prevaccination titer.
| Percentage of subjects | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| Serogroup A | 93 (87 to 96) | 55 (46 to 63) |
| Serogroup C (N=147,144) | 82 (74 to 88) | 52 (44 to 60) |
| Serogroup W (N=143,142) | 74 (66 to 81) | 46 (37 to 54) |
| Serogroup Y (N=146,146) | 82 (74 to 87) | 63 (55 to 71) |
Safety was assessed in terms of the number of subjects who reported at least one severe systemic reaction after vaccination with MenACWY-CRM or MenACWY-PS from day 1 to day 7 after vaccination.
| Number of subjects | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| Number of Subjects With At Least One Severe Systemic Reaction to MenACWY-CRM or MenACWY-PS Within 7 Days Postvaccination | 11 | 1 |
Immunogenicity was measured as the percentage of subjects who achieved hSBA titers ≥1:4 and ≥1:8 against each of four meningococcal serogroups A, C, W and Y at baseline (day 1) and one month (day 29)after one vaccination with MenACWY-CRM or MenACWY-PS.
| Percentage of subjects | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| Serogroup A (hSBA ≥1:4)- Day 1 | 5 (2 to 10) | 3 (1 to 8) |
| Serogroup A (hSBA ≥1:4)- Day 29 | 95 (90 to 98) | 55 (47 to 64) |
| Serogroup C (hSBA ≥1:4)- Day 1 (N=147,144) | 26 (19 to 34) | 31 (23 to 39) |
| Serogroup C (hSBA ≥1:4)- Day 29 (N=147,144) | 91 (85 to 95) | 80 (72 to 86) |
| Serogroup W (hSBA ≥1:4)- Day 1 (N=143,142) | 40 (32 to 48) | 37 (29 to 46) |
| Serogroup W (hSBA ≥1:4)- Day 29 (N=143,142) | 99 (96 to 100) | 78 (70 to 85) |
| Serogroup Y (hSBA ≥1:4)- Day 1 (N=146,146) | 17 (11 to 24) | 15 (10 to 22) |
| Serogroup Y (hSBA ≥1:4)- Day 29 (N=146,146) | 90 (84 to 95) | 77 (69 to 83) |
| Serogroup A (hSBA ≥1:8)- Day 1 | 4 (2 to 9) | 2 (0 to 6) |
| Serogroup A (hSBA ≥1:8)- Day 29 | 95 (90 to 98) | 55 (47 to 64) |
| Serogroup C (hSBA ≥1:8)- Day 1 (N=147,144) | 16 (10 to 23) | 20 (14 to 28) |
| Serogroup C (hSBA ≥1:8)- Day 29 (N=147,144) | 88 (82 to 93) | 70 (62 to 77) |
| Serogroup W (hSBA ≥1:8)- Day 1 (N=143,142) | 38 (30 to 46) | 35 (27 to 43) |
| Serogroup W (hSBA ≥1:8)- Day 29 (N=143,142) | 99 (96 to 100) | 73 (64 to 80) |
| Serogroup Y (hSBA ≥1:8)- Day 1 (N=146,146) | 14 (9 to 21) | 11 (6 to 17) |
| Serogroup Y (hSBA ≥1:8)- Day 29 (N=146,146) | 89 (83 to 94) | 66 (58 to 74) |
The immune response was measured as the hSBA geometric mean titers (GMTs) directed against each of four meningococcal serogroups A, C, W and Y at baseline (day 1) and one month(day 29) after one vaccination with MenACWY-CRM or MenACWY-PS.
| Geometric Mean Titers | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| Serogroup A - Day 1 | 2.25 (2.10 to 2.41) | 2.09 (1.95 to 2.24) |
| Serogroup A - Day 29 | 65 (51 to 82) | 11 (8.66 to 14) |
| Serogroup C (N=147,144) - Day 1 | 3.09 (2.69 to 3.53) | 3.27 (2.85 to 3.75) |
| Serogroup C (N=147,144) - Day 29 | 42 (32 to 54) | 20 (15 to 26) |
| Serogroup W (N=143,142) - Day 1 | 6.22 (4.90 to 7.90) | 5.40 (4.25 to 6.87) |
| Serogroup W (N=143,142) - Day 29 | 72 (56 to 92) | 20 (16 to 26) |
| Serogroup Y (N=146,146) - Day 1 | 2.81 (2.48 to 3.19) | 2.64 (2.33 to 2.99) |
| Serogroup Y (N=146,146) - Day 29 | 47 (35 to 63) | 25 (19 to 34) |
The persistence of immune response was measured as the percentage of subjects with hSBA titers ≥1:4 and ≥1:8 against each of four meningococcal serogroups A, C, W and Y at day 181 after vaccination with MenACWY-CRM or MenACWY-PS.
| Percentage of subjects | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| Serogroup A(≥1:4)-Day 29 (1 month postvaccination) | 96 (91 to 98) | 54 (46 to 62) |
| Serogroup A(≥1:4)-Day 181(6 months postvaccination | 39 (31 to 47) | 41 (33 to 49) |
| Serogroup C (hSBA ≥1:4) - Day 29 (N=141,139) | 91 (85 to 95) | 79 (71 to 86) |
| Serogroup C (hSBA ≥1:4) - Day 181 (N=141,139) | 87 (81 to 92) | 71 (63 to 79) |
| Serogroup W (hSBA ≥1:4) - Day 29 (N=137,137) | 99 (96 to 100) | 78 (70 to 85) |
| Serogroup W (hSBA ≥1:4) - Day 181 (N=137,137) | 97 (93 to 99) | 69 (60 to 76) |
| Serogroup Y (hSBA ≥1:4) - Day 29 (N=140,141) | 90 (84 to 94) | 77 (69 to 83) |
| Serogroup Y (hSBA ≥1:4) - Day 181 (N=140,141) | 94 (88 to 97) | 65 (56 to 72) |
| Serogroup A (hSBA ≥1:8) - Day 29 | 95 (90 to 98) | 54 (46 to 62) |
| Serogroup A (hSBA ≥1:8) - Day 181 | 35 (27 to 44) | 38 (30 to 47) |
| Serogroup C (hSBA ≥1:8) - Day 29 (N=141,139) | 88 (81 to 93) | 70 (61 to 77) |
| Serogroup C (hSBA ≥1:8) - Day 181 (N=141,139) | 81 (73 to 87) | 55 (47 to 64) |
| Serogroup W (hSBA ≥1:8) - Day 29 (N=137,137) | 99 (96 to 100) | 72 (64 to 80) |
| Serogroup W (hSBA ≥1:8) - Day 181 (N=137,137) | 96 (92 to 99) | 66 (57 to 74) |
| Serogroup Y (hSBA ≥1:8) - Day 29 (N=140,141) | 89 (82 to 93) | 67 (59 to 75) |
| Serogroup Y (hSBA ≥1:8) - Day 181 (N=140,141) | 89 (83 to 94) | 59 (50 to 67) |
The persistence of immune response was measured in terms of the hSBA GMTs persisting at day 181 against each of four meningococcal serogroups A, C, W and Y after vaccination with MenACWY-CRM or MenACWY-PS
| Geometric Mean Titers | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| Serogroup A - Day 29 (1 month post vaccination) | 66 (52 to 83) | 11 (8.33 to 13) |
| Serogroup A - Day 181 (6 months post vaccination) | 5.06 (4.05 to 6.33) | 5.85 (4.68 to 7.32) |
| Serogroup C (N=141,139) - Day 29 | 41 (31 to 54) | 20 (15 to 27) |
| Serogroup C (N=141,139) - Day 181 | 22 (17 to 28) | 11 (8.84 to 14) |
| Serogroup W (N=137,137) - Day 29 | 74 (58 to 95) | 21 (16 to 27) |
| Serogroup W (N=137,137) - Day 181 | 69 (54 to 89) | 16 (13 to 21) |
| Serogroup Y (N=140,141) - Day 29 | 47 (35 to 64) | 26 (19 to 35) |
| Serogroup Y (N=140,141) - Day 181 | 39 (29 to 51) | 14 (11 to 19) |
Safety was assessed as the number of subjects who reported local and systemic reactions and axillary temperature during day 1 to day 7 after vaccination with MenACWY-CRM or MenACWY-PS.
| participants | MenACWY-CRM_2 to 5 Years | MenACWY-PS_2 to 5 Years | MenACWY-CRM_6 to 10 Years | MenACWY-PS_6 to 10 Years |
|---|---|---|---|---|
| Any local reaction | 138 | 99 | 189 | 125 |
| Injection site pain | 89 | 68 | 132 | 100 |
| Injection site erythema | 75 | 34 | 91 | 37 |
| Injection site induration | 59 | 23 | 84 | 38 |
| Any systemic reaction | 130 | 73 | 119 | 69 |
| Change in Eating Habits | 36 | 24 | NA | NA |
| Sleepiness | 29 | 13 | NA | NA |
| Irritability | 36 | 18 | NA | NA |
| Vomiting | 21 | 9 | NA | NA |
| Diarrhea | 31 | 20 | NA | NA |
| Arthralgia | 26 | 11 | 18 | 15 |
| Headache | 46 | 22 | 74 | 46 |
| Chills | NA | NA | 18 | 17 |
| Nausea | NA | NA | 16 | 11 |
| Malaise | NA | NA | 50 | 28 |
| Myalgia | NA | NA | 35 | 25 |
| Any other AE | 69 | 42 | 69 | 47 |
| Axillary Temperature ≥38 °C | 35 | 18 | 20 | 16 |
| Analgesic/Antipyretic medicine used | 69 | 42 | 69 | 47 |
Collected over Solicited adverse events (AEs) were collected from Day 1 through 7,Serious AEs were collected from day 1 to day 181 after vaccination.. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| MenACWY-CRM | — | 9/950 (0.9%) | 409/950 (43.1%) |
| MenACWY-PS | — | 1/550 (0.2%) | 271/550 (49.3%) |
| Event | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| PneumoniaInfections and infestations | 3/950 | 0/550 |
| AppendicitisInfections and infestations | 2/950 | 0/550 |
| Lobar PneumoniaInfections and infestations | 0/950 | 1/550 |
| InjuryInjury, poisoning and procedural complications | 1/950 | 0/550 |
| Febrile ConvulsionNervous system disorders | 1/950 | 0/550 |
| Tonic ConvulsionNervous system disorders | 1/950 | 0/550 |
| Asthmatic CrisisRespiratory, thoracic and mediastinal disorders | 1/950 | 0/550 |
| Event | MenACWY-CRM | MenACWY-PS |
|---|---|---|
| Injection site painGeneral disorders | 221/950 | 168/550 |
| Injection site erythemaGeneral disorders | 166/950 | 71/550 |
| Injection site indurationGeneral disorders | 143/950 | 61/550 |
| HeadacheNervous system disorders | 125/950 | 72/550 |
| PyrexiaGeneral disorders | 75/950 | 49/550 |
| MalaiseGeneral disorders | 50/950 | 28/550 |
Analysis was done on all enrolled subjects.
| Age, Continuous(Years) | MenACWY-CRM | MenACWY-PS | Total |
|---|---|---|---|
| Mean | 5.8 ± 2.5 | 5.7 ± 2.5 | 5.8 ± 2.5 |
| Sex: Female, Male(Participants) | MenACWY-CRM | MenACWY-PS | Total |
|---|---|---|---|
| Female | 482 | 288 | 770 |
| Male | 468 | 262 | 730 |
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