Table 1.
Single arm trials (Longitudinal studies) |
Controlled trials |
|||
---|---|---|---|---|
Number (Ns = 8) | References (Np = 22) | Number (Ns = 10) | References (Np = 21) | |
A) Study characteristics | ||||
WHO region | ||||
Africa | 1 | 30,48 | 1 | 49,50 |
America | 4 | 32,46,47,51, 52, 53,54,55,56,75, 76, 77, 78, 79 | 4 | 62,63,64,65,66,67,68,69 |
Europe | 1 | 70 | 4 | 31,71,83, 84, 85, 86, 87, 88, 89 |
Asia | 1 | 79,80 | 0 | − |
Mix | 1 | 81,82,83 | 1 | 84,85 |
Study year (mid-point) | ||||
2000-2010 | 3 | 30,32,47,52,53,79,56,57,77, 78, 79 | 2 | 62,66,49,69 |
Post 2010 | 4 | 46,51,54,55,48,58,69,80 | 8 | 31,63,71,64,65,67,68,83, 84, 85, 86, 87, 88, 89,84,85 |
Not reported | 1 | 70 | 0 | − |
Vaccine type | ||||
Nonavalent | 0 | − | 1 | 77,78 |
Quadrivalent | 8 | 30,32,46, 47, 48, 49,51, 52, 53,54,58, 60, 59,48,75, 76, 77, 78, 79,70,80,83 | 7 | 31,62,63,71,64,65,66,67,69,83, 84, 85, 86, 87,84,85 |
Bivalent | 0 | − | 4 | 31,49,50,68,72,73,76,84,85 |
Vaccine doses | ||||
3 doses | 8 | 31,46,47,62,63,64,79,65,66,67,72, 73, 74,59,68,69,83, 84, 85, 86, 87 | 10 | 32,81,52,53,56,60,77,78,84,85 |
4 doses | 1 | 57,60 | 2 | 63,66,67,69 |
Study design | ||||
Randomized controlled trials: | N/A | − | 7 | 31,62,63,71,64,65,66,67,49,50,69,83, 84, 85,76,84,85 |
Quadrivalent vaccine vs Placebo | N/A | − | 4 | 62,63,71,64,65,66,67,69,74 |
Bivalent vaccine vs Placebo | N/A | − | 1 | 49,50 |
Quadrivalent vs Bivalent vaccines | N/A | − | 2 | 31,72,73,76,84,85 |
Three vs four doses of quadrivalent vaccine | N/A | 2 | 63,66,67 | |
Non randomized controlled trials:+ | N/A | − | 3 | 68,75,77,78 |
Trials with historical controls (HIV positive unvaccinated, HIV negative vaccinated or HIV negative unvaccinated) | 5 | 30,51,52,54,55,48,61 | 2 | 62,63 |
Number of trial participants (at entry) | ||||
Median across studies (IQR) | 150 (99-307) | 97 (91–219) | ||
Follow-up duration | ||||
<1 year | 3 | 62,68,74 | 4 | 30,82,51,54,55,57,61,69,70,88, 89, 90 |
1-2 years | 6 | 31,46,79,49,50,59,72,73,75,76 | 2 | 58,84,85 |
>2 years (maximum: 8 years) | 3 | 47,63,64,65,66,67,48,69 | 4 | 81,82,51, 52, 53,54,71,55,56,58,69,80 |
B) Participant characteristics | ||||
Sex | ||||
Female | 5 | 47, 48, 49,51, 52, 53,54,58, 60, 59,58,59,70,80,83 | 2 | 49,50,84,85 |
Male | 2 | 32,46,57,60,61 | 2 | 71,68,74 |
Female and Male | 1 | 30,48 | 6 | 31,62,63,64,65,66,67,69,72,73,86, 87, 88, 89 |
Age category/ | ||||
Children (≤18 years)♯ | 3 | 30,54,48,70 | 2 | 62,63,66,67,69 |
Adults (>18 years) | 3 | 32,46,51,57,77, 78, 79 | 6 | 31,71,64,65,49,50,68,83, 84, 85,87, 88, 89 |
Mix of adults and children | 4 | 47, 48, 49,52,53,58, 60, 59,58,80,83 | 2 | 75,84,85 |
Proportion of participants on ART (Baseline) | ||||
100% | 1 | 70 | 1 | 76 |
67-99% | 3 | 30,32,54,55,48,60,61 | 6 | 31,63,71,64,66,67,83, 84, 85,77 |
25-66% | 2 | 81,52,53,79,56,83 | 1 | 85 |
<25% | 0 | − | 1 | 50 |
Not reported | 5 | 46,47,82,51,75, 76, 77,80 | 7 | 62,65,49,68,69,75,78,84 |
Baseline CD4 count (Mean or Median) | ||||
<350 cells/mm3 | 1 | 81,82,83 | 0 | − |
350–500 cells/mm3 | 1 | 47 | 1 | 50 |
>500 cells/mm3 | 4 | 30,32,51,52,54,55,79,48,58,60,61 | 8 | 31,62,63,71,64,65,66,67,69,83, 84, 85, 86, 87, 88,85 |
Not reported | 4 | 53,56,57,59,70,80 | 4 | 49,68,78,84 |
C) Study outcomes | ||||
Immunogenicity | ||||
Seropositivitya: Stratified by: |
5 | 30,32,81,82,51, 52, 53,54,79,56,48,57,60,61,83 | 9 | 31,62,63,66,49,50,68,69,72,73,75,77,78,84,85 |
CD4 count/nadir | 1 | 82 | 1 | 62 |
ART status | 1 | 53 | 0 | − |
Viral suppression | 0 | − | 0 | − |
Geometric mean antibody titre (GMT): Stratified by: |
6 | 30,32,46,81,82,51, 52, 53,54,48,57,77, 78, 79,83 | 6 | 31,62,63,50,69,73,76,77,84,85 |
CD4 count/nadir | 1 | 82 | 1 | 62 |
ART status | 1 | 53 | 0 | − |
Viral suppression | 1 | 54 | 0 | − |
Biological outcomes | ||||
Genital warts | 2 | 46,55 | 0 | − |
Anogenital DNA infection | 4 | 32,46,47,82,55,79 | 3 | 31,71,64,73 |
Cytology (anal/cervical) | 0 | − | 2 | 71,64,65 |
Histology (CIN2+) | 1 | 55 | 0 | − |
Safety | ||||
AEs (possibly, probably or definitely related to vaccine) | 3 | 32,46,52,53,79,56,57,60,61 | 2 | 62,64,65,66,69 |
Any AEs | 7 | 30,32,46, 47, 48, 49,51, 52, 53,54,58, 60, 59,48,57,58,60,61,80,83 | 7 | 31,62,71,64,65,66,49,50,69,73,74,87, 88, 89,84,85 |
(S)AEs | 7 | 30, 32, 46, 72, 52, 53, 55, 60, 75, 77, 78, 79, 59, 90, 48, 49, 91 | 7 | 31,62,71,64,65,66,49,50,69,83, 84, 85,87, 88, 89,84,85 |
The proportion of the population that is seropositive for any of the HPV vaccine types at any point in time regardless of baseline HPV status; (S)AEs = (serious) Adverse Events, CIN = Cervical intraepithelial neoplasia; Np: Number of publications; Ns: Number of independent trials; //Children if participants are < 18 years old and adults if ≥ 18 years old; ♯ Range between 7 and 18 years old; ❖ Historical control group based on participants recruited in a different study, time, location; +All compare vaccine in HIV positive and negative participants.