Title

Vaccine Therapy in Preventing Human Papillomavirus Infection in Young HIV-Positive Male Patients Who Have Sex With Males
AMC-072: Protective Effect of Quadrivalent Vaccine in Young HIV-Positive Males Who Have Sex With Males
  • Phase

    Phase 2
  • Study Type

    Interventional
  • Study Participants

    149
RATIONALE: Vaccines made from a gene-modified virus may help the body build an effective immune response to prevent viral infection.

PURPOSE: This phase II trial is studying how well vaccine therapy works in preventing human papillomavirus (HPV) infection in young HIV-positive male patients who have sex with males.
OBJECTIVES:

Primary

To determine the protective effect of the HPV-6, -11, -16, -18 vaccine in preventing penile/scrotal condyloma and HPV-6, -11, -16, -18- associated perianal/anal disease in HIV-positive males who have sex with males (MSM) age 13-26 years by comparing the incidence of these lesions among those naïve to the relevant HPV type(s) at baseline to those who are not naïve at baseline.
To determine the protective effect of the HPV-6, -11, -16, -18 vaccine in preventing persistent anogenital infection with HPV-6, -11, -16, or 18 in HIV-positive MSM age 13-26 years by comparing the incidence of persistent infection among those naïve to the relevant HPV type(s) at baseline to those who are not naïve at baseline.
To determine the protective effect of the HPV-6, -11, -16, -18 vaccine in preventing anogenital lesions associated with HPV 6,-11,-16, -18 and persistent infection with these types, in HIV-positive MSM age 13-26 years by comparing the incidence of lesions and persistent infection among those naïve to the relevant types at baseline to incident lesions and infection among MSM naïve to these HPV types who participated in the Merck 020 protocol and who received placebo as part of the protocol.

Secondary

To define the safety of the HPV-6, -11, -16, -18 vaccine in HIV-positive MSM age 13-26 years.
To evaluate the levels and persistence of HPV 6, 11, 16 and 18 Ab titers after the vaccination series among subjects who are seropositive and seronegative at baseline.
To examine whether the protective effect and antibody titers vary as a function of the following at the time of initial vaccination: subject age, HAART treatment status, HIV viral load, CD4 + T-cell count, and nadir CD4 level.

Tertiary

To quantify anogenital HPV DNA viral load prior to and after receipt of the quadrivalent HPV vaccine.
To identify and quantify HPV types in the oral cavity of HIV-positive MSM prior to and after receipt of the quadrivalent HPV vaccine.
To identify HPV strain variants among HIV-positive participants prior to and after receipt of the quadrivalent HPV vaccine.
Assess the prevalence and incidence of urinary and gonorrhea and Chlamydia trachomatis infection at baseline and their relationship with prevalent and incident anogenital HPV infection and anal condyloma or AIN.
To characterize young men's risk perceptions, sexual behaviors, and STI diagnosis after HPV vaccination.

OUTLINE: This is a multicenter study.

Patients receive quadrivalent human papillomavirus (types 6, 11, 16, and 18) recombinant vaccine intramuscularly on day 1 and in weeks 8 and 24.

Blood and tissue samples may be collected periodically for laboratory studies.

After completion of study treatment, patients are followed up for 2 years.
Study Started
Jun 28
2011
Primary Completion
Dec 12
2017
Study Completion
Dec 12
2017
Results Posted
May 27
2020
Last Update
Aug 11
2020

Biological quadrivalent human papillomavirus (types 6, 11, 16, 18) recombinant vaccine

Other laboratory biomarker analysis

Vaccination Experimental

Gardasil (quadrivalent HPV types 6, 11, 16, 18) vaccination at weeks 0, 8, 24.

Criteria

DISEASE CHARACTERISTICS:

Men with a history of at least one male sexual partner

"Men" is defined as those documented "male" at birth (including male-to-female transgendered persons)

HIV-1 infection as documented by any federally approved, licensed HIV test performed in conjunction with screening (ELISA, western blot, or other approved test)

Alternatively, this documentation may include a record that another physician has documented that the patient has HIV based on prior ELISA and western blot, or other approved diagnostic tests

Meets one of the following sets of criteria:

Patients receiving antiretroviral therapy:

Receipt of antiretroviral therapy for at least 3 months prior to entry
No change in antiretroviral therapy within 30 days prior to entry

Patients not receiving antiretroviral therapy:

CD4-cell count ≥ 350 cells/mm³ within 90 days prior to study entry
No plans to start antiretroviral therapy prior to Week 28

Normal anal cytological result, LSIL/condyloma, or ASCUS result within 90 days prior to entry, and no HGAIN on biopsy

No current or history of anal or peri-anal carcinoma
No anal cytological result of HSIL, atypical squamous cells suggestive of HSIL (ASC-H), or suggestive of invasive carcinoma at screening; or history of these results
No presence of penile or scrotal condyloma, LGAIN (condyloma or AIN 1), HGAIN (e.g., AIN 2 or 3, or perianal intraepithelial neoplasia grade 2 or 3), or invasive carcinoma at pre-entry on biopsy
No history of HGAIN

PATIENT CHARACTERISTICS:

Karnofsky performance score ≥ 70 within 45 days prior to entry
Absolute neutrophil count (ANC) > 750 cells/mm^3
Hemoglobin ≥ 9.0 g/dL
Platelet count ≥ 100,000/mm^3
AST (SGOT), ALT (SGPT) ≤ 3 times upper limit of normal (ULN)
Total or conjugated (direct) bilirubin ≤ 2.5 times ULN within 45 days before study entry, with the exception of isolated hyperbilirubinemia that is considered due to atazanavir
Calculated creatinine clearance ≥ 60 mL/min
No hemophilia
No active drug or alcohol use or dependence that, in the opinion of the site Investigator, would interfere with adherence to study requirements
No serious illness requiring systemic treatment and/or hospitalization within 45 days prior to entry
No serious medical or psychiatric illness that, in the opinion of the site Investigator, will interfere with the ability of the subject to give informed consent or adhere to the protocol
No allergy to yeast or any of the components of Gardasil

PRIOR CONCURRENT THERAPY:

See Disease Characteristics
No prior splenectomy
No prior receipt of Gardasil or other HPV vaccine
No use of any systemic antineoplastic or immunomodulatory treatment, systemic corticosteroids for greater than 14 days, investigational vaccines, interleukins, interferons, growth factors, or IVIG within 45 days prior to study entry

No expected use of any systemic antineoplastic or immunomodulatory treatment, systemic corticosteroids used for greater than 14 days, investigational vaccines, interleukins, interferons, growth factors, or IVIG during study followup

No patients with hepatitis C who expect to initiate treatment for hepatitis C (e.g., interferons) during this trial
Not currently receiving anticoagulation therapy other than acetylsalicylic acid

Summary

Vaccination

All Events

Event Type Organ System Event Term Vaccination

Incidence of AIN or Anal/Perianal Condyloma Associated With HPV 6 DNA

Incident events are defined as having AIN (e.g., AIN or anal/perianal condyloma) with HPV 6 positive DNA in participants without HPV-6 related AIN at baseline.

Naive to HPV 6

Prior Exposure to HPV 6

11.1
Events per 100 person years

Incidence of AIN or Anal/Perianal Condyloma Associated With HPV 11 DNA

Incident events are defined as having AIN (e.g., AIN or anal/perianal condyloma) with HPV 11 positive DNA in participants without HPV-11 related AIN at baseline.

Naive to HPV 11

Prior Exposure to HPV 11

2.2
Events per 100 person years

Incidence of AIN or Anal/Perianal Condyloma Associated With HPV 16 DNA

Incident events are defined as having AIN (e.g., AIN or anal/perianal condyloma) with HPV 16 positive DNA in participants without HPV-16 related AIN at baseline.

Naive to HPV 16

Prior Exposure to HPV 16

4.5
Events per 100 person years

Incidence of AIN or Anal/Perianal Condyloma Associated With HPV 18 DNA

Incident events are defined as having AIN (e.g., AIN or anal/perianal condyloma) with HPV 18 positive DNA in participants without HPV-18 related AIN at baseline.

Naive to HPV 18

Prior Exposure to HPV 18

2.8
Events per 100 person years

Incidence of Persistent Anogenital Infection With HPV 6 DNA

Incident events are defined as having HPV 6 positive PCR results at 2 or more consecutive visits in those who were DNA negative for HPV 6. Persistence was defined based on being persistent in the same anatomical site.

Naive to HPV 6

1.8
events per 100 person years

Prior Exposure HPV 6

Incidence of Persistent Anogenital Infection With HPV 11 DNA

Incident events are defined as having positive PCR results with HPV 11 at 2 or more consecutive visits in those who were DNA negative for HPV 11 at baseline. Persistence was defined based on being persistent in the same anatomical site.

Naive to HPV 11

Prior Exposure to HPV 11

Incidence of Persistent Anogenital Infection With HPV 16 DNA

Incident events are defined as having positive PCR results with HPV 16 at 2 or more consecutive visits in those who were DNA negative for HPV 16 at baseline. Persistence was defined based on being persistent in the same anatomical site.

Naive to HPV 16

2.9
events per 100 person years

Prior Exposure to HPV 16

Incidence of Persistent Anogenital Infection With HPV 18 DNA

Incident events are defined as having positive PCR results with HPV 18 at 2 or more consecutive visits in those who were DNA negative for HPV 18. Persistence was defined based on being persistent in the same anatomical site.

Naive to HPV 18

0.7
events per 100 person years

Prior Exposure to HPV 18

Incidence of HGAIN Associated With HPV 6

Incident events are defined as having HGAIN (e.g., AIN 2 or 3, or perianal intraepithelial neoplasia grade 2 or 3) with HPV 6 positive DNA in participants without HPV 6 related HGAIN at baseline.

Naive to HPV 6

Prior Exposure to HPV 6

10.4
per 100 person years

Incidence of HGAIN Associated With HPV 11

Incident events are defined as having HGAIN (e.g., AIN 2 or 3, or perianal intraepithelial neoplasia grade 2 or 3) with HPV 11 positive DNA in participants without HPV 11 related HGAIN at baseline.

Naive to HPV 11

Prior Exposure to HPV 11

1.7
per 100 person years

Incidence of HGAIN Associated With HPV 16

Incident events are defined as having HGAIN (e.g., AIN 2 or 3, or perianal intraepithelial neoplasia grade 2 or 3) with HPV 16 positive DNA in participants without HPV 16 related HGAIN at baseline.

Naive to HPV 16

Prior Exposure to HPV 16

8.4
per 100 person years

Incidence of HGAIN Associated With HPV 18

Incident events are defined as having HGAIN (e.g., AIN 2 or 3, or perianal intraepithelial neoplasia grade 2 or 3) with HPV 18 positive DNA in participants without HPV 18 related HGAIN at baseline.

Naive to HPV 18

Prior Exposure to HPV 18

2.7
per 100 person years

Incidence of Penile/Scrotal Condyloma in HPV 6 Naive and Prior Exposed Participants

Incident events are defined as having penile/scrotal warts reported clinically in participants penile/scrotal condyloma at baseline.

Naive to HPV 6

1.8
per 100 person years

Prior Exposure to HPV 6

1.1
per 100 person years

Incidence of Penile/Scrotal Condyloma in HPV 11 Naive and Prior Exposed Participants

Incident events are defined as having penile/scrotal warts reported clinically in participants penile/scrotal condyloma at baseline.

Naive to HPV 11

0.9
per 100 person years

Prior Exposure to HPV 11

1.7
per 100 person years

Incidence of Penile/Scrotal Condyloma in HPV 16 Naive and Prior Exposed Participants

Incident events are defined as having penile/scrotal warts reported clinically in participants penile/scrotal condyloma at baseline.

Naive to HPV 16

1.8
per 100 person years

Prior Exposure to HPV 16

0.8
per 100 person years

Incidence of Penile/Scrotal Condyloma in HPV 18 Naive and Prior Exposed Participants

Incident events are defined as having penile/scrotal warts reported clinically in participants penile/scrotal condyloma at baseline.

Naive to HPV 18

0.7
per 100 person years

Prior Exposure to HPV 18

2.3
per 100 person years

Occurrence of Grade ≥ 3 Adverse Events (AEs) That Were Possibly, Probably, or Definitely Related to the Vaccine

Number of participants who experienced grade 3 and higher AEs that were possibly, probably or definitely related to the vaccine.

Vaccination

Geometric Mean Titers for HPV 6

Geometric mean concentration of antibodies for HPV 6 at each visit

HPV 6 Sero-negative at Baseline

Baseline

Month 12

111.8
mMU/mL (Geometric Mean)
95% Confidence Interval: 83.6 to 149.4

Month 18

79.7
mMU/mL (Geometric Mean)
95% Confidence Interval: 55.8 to 113.9

Month 24

73.7
mMU/mL (Geometric Mean)
95% Confidence Interval: 48.5 to 112.0

Month 7

302.3
mMU/mL (Geometric Mean)
95% Confidence Interval: 236.4 to 386.6

HPV 6 Sero-positive at Baseline

Baseline

81.7
mMU/mL (Geometric Mean)
95% Confidence Interval: 64.5 to 851.8

Month 12

420.9
mMU/mL (Geometric Mean)
95% Confidence Interval: 318.2 to 556.7

Month 18

335.3
mMU/mL (Geometric Mean)
95% Confidence Interval: 262.8 to 428.0

Month 24

356.6
mMU/mL (Geometric Mean)
95% Confidence Interval: 272.4 to 466.8

Month 7

637.8
mMU/mL (Geometric Mean)
95% Confidence Interval: 477.6 to 851.8

Geometric Mean Titers for HPV 11

Geometric mean concentration of antibodies for HPV 11 at each visit

HPV 11 Sero-negative at Baseline

Baseline

Month 12

132.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 102.7 to 169.8

Month 18

89.6
mMU/mL (Geometric Mean)
95% Confidence Interval: 67.2 to 119.4

Month 24

84.4
mMU/mL (Geometric Mean)
95% Confidence Interval: 62.1 to 114.9

Month 7

452.4
mMU/mL (Geometric Mean)
95% Confidence Interval: 378.1 to 541.4

HPV 11 Sero-positive at Baseline

Baseline

42.7
mMU/mL (Geometric Mean)
95% Confidence Interval: 30.1 to 60.5

Month 12

493.7
mMU/mL (Geometric Mean)
95% Confidence Interval: 355.2 to 686.1

Month 18

373.2
mMU/mL (Geometric Mean)
95% Confidence Interval: 262.1 to 531.6

Month 24

300.2
mMU/mL (Geometric Mean)
95% Confidence Interval: 205.8 to 438.1

Month 7

976.2
mMU/mL (Geometric Mean)
95% Confidence Interval: 757.5 to 1258.1

Geometric Mean Titers for HPV 16

Geometric mean concentration of antibodies for HPV 16 at each visit

HPV 16 Sero-negative at Baseline

Baseline

Month 12

451.6
mMU/mL (Geometric Mean)
95% Confidence Interval: 352.5 to 578.5

Month 18

309.5
mMU/mL (Geometric Mean)
95% Confidence Interval: 237.6 to 403.1

Month 24

272.4
mMU/mL (Geometric Mean)
95% Confidence Interval: 195.5 to 379.6

Month 7

1535.6
mMU/mL (Geometric Mean)
95% Confidence Interval: 1272.5 to 1853.1

HPV 16 Sero-positive at Baseline

Baseline

66.6
mMU/mL (Geometric Mean)
95% Confidence Interval: 46.7 to 95.1

Month 12

1436.6
mMU/mL (Geometric Mean)
95% Confidence Interval: 1095.2 to 1884.6

Month 18

1242.9
mMU/mL (Geometric Mean)
95% Confidence Interval: 892.2 to 1731.5

Month 24

1079.5
mMU/mL (Geometric Mean)
95% Confidence Interval: 771.8 to 1510.0

Month 7

2947.8
mMU/mL (Geometric Mean)
95% Confidence Interval: 2249.0 to 3863.6

Geometric Mean Titers for HPV 18

Geometric mean concentration of antibodies for HPV 18 at each visit

HPV 18 Sero-negative at Baseline

Baseline

Month 12

63.1
mMU/mL (Geometric Mean)
95% Confidence Interval: 48.7 to 81.6

Month 18

39.2
mMU/mL (Geometric Mean)
95% Confidence Interval: 29.7 to 51.7

Month 24

39.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 28.7 to 52.8

Month 7

294.2
mMU/mL (Geometric Mean)
95% Confidence Interval: 232.8 to 371.8

HPV 18 Sero-positive at Baseline

Baseline

41.3
mMU/mL (Geometric Mean)
95% Confidence Interval: 28.1 to 60.7

Month 12

214.6
mMU/mL (Geometric Mean)
95% Confidence Interval: 141.0 to 326.6

Month 18

244.3
mMU/mL (Geometric Mean)
95% Confidence Interval: 158.0 to 377.5

Month 24

161.9
mMU/mL (Geometric Mean)
95% Confidence Interval: 103.3 to 253.7

Month 7

482.2
mMU/mL (Geometric Mean)
95% Confidence Interval: 351.9 to 660.7

Geometric Mean Titers for HPV 6 According to Participant Age, HIV Viral Load, CD4+ T Cell Count, and Nadir CD4 Level

Geometric mean concentration of antibodies for HPV 6 at 7 and 24 months

Month 24 Visit

Age<24 years

71.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 42.0 to 121.0

Age>=24 years

77.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 37.0 to 163.0

Baseline CD4 <=500

97.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 44.0 to 212.0

Baseline CD4 >500

66.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 39.0 to 111.0

Baseline HIV viral load <=75

81.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 53.0 to 125.0

Baseline HIV viral load >75

45.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 8.0 to 257.0

Nadir CD4>350

75.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 42.0 to 134.0

Nadir CD4 <=350

77.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 38.0 to 155.0

Month 7 Visit

Age<24 years

319.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 227.0 to 451.0

Age>=24 years

304.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 200.0 to 463.0

Baseline CD4 <=500

341.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 178.0 to 657.0

Baseline CD4 >500

302.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 229.0 to 399.0

Baseline HIV viral load <=75

324.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 244.0 to 431.0

Baseline HIV viral load >75

250.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 118.0 to 528.0

Nadir CD4>350

300.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 214.0 to 421.0

Nadir CD4 <=350

361.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 222.0 to 584.0

Geometric Mean Titers for HPV 11 According to Participant Age, HIV Viral Load, CD4+ T Cell Count, and Nadir CD4 Level

Geometric mean concentration of antibodies for HPV 11 at 7 and 24 months

Month 7 Visit

Age<24 years

434.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 336.0 to 561.0

Age>=24 years

482.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 361.0 to 645.0

Baseline CD4 <=500

475.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 354.0 to 638.0

Baseline CD4 >500

445.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 347.0 to 571.0

Baseline HIV viral load <=75

473.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 385.0 to 583.0

Baseline HIV viral load >75

365.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 226.0 to 587.0

Nadir CD4>350

452.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 344.0 to 594.0

Nadir CD4 <=350

469.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 351.0 to 626.0

Month 24 Visit

Age<24 years

71.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 49.0 to 105.0

Age>=24 years

104.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 61.0 to 174.0

Baseline CD4 <=500

98.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 59.0 to 163.0

Baseline CD4 >500

78.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 53.0 to 117.0

Baseline HIV viral load <=75

86.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 63.0 to 118.0

Baseline HIV viral load >75

75.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 21.0 to 260.0

Nadir CD4>350

82.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 50.0 to 134.0

Nadir CD4 <=350

87.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 57.0 to 133.0

Geometric Mean Titers for HPV 16 According to Participant Age, HIV Viral Load, CD4+ T Cell Count, and Nadir CD4 Level

Geometric mean concentration of antibodies for HPV 16 at 7 and 24 months

Month 7 Visit

Age<24 years

1572.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 1239.0 to 1995.0

Age>=24 years

1467.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 1013.0 to 2126.0

Baseline CD4 <=500

1556.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 1123.0 to 2156.0

Baseline CD4 >500

1522.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 1178.0 to 1967.0

Baseline HIV viral load <=75

1630.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 1328.0 to 2002.0

Baseline HIV viral load >75

914.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 441.0 to 1894.0

Nadir CD4>350

1752.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 1303.0 to 2354.0

Nadir CD4 <=350

1390.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 1040.0 to 1857.0

Month 24 Visit

Age<24 years

268.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 185.0 to 388.0

Age>=24 years

272.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 131.0 to 566.0

Baseline CD4 <=500

359.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 218.0 to 590.0

Baseline CD4 >500

229.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 145.0 to 359.0

Baseline HIV viral load <=75

282.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 200.0 to 398.0

Baseline HIV viral load >75

201.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 51.0 to 795.0

Nadir CD4>350

313.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 186.0 to 528.0

Nadir CD4 <=350

245.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 151.0 to 395.0

Geometric Mean Titers for HPV 18 According to Participant Age, HIV Viral Load, CD4+ T Cell Count, and Nadir CD4 Level

Geometric mean concentration of antibodies for HPV 18 at 7 and 24 months

Month 7 Visit

Age<24 years

310.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 230.0 to 418.0

Age>=24 years

281.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 180.0 to 437.0

Baseline CD4 <=500

327.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 209.0 to 511.0

Baseline CD4 >500

282.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 208.0 to 381.0

Baseline HIV viral load <=75

333.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 258.0 to 431.0

Baseline HIV viral load >75

123.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 57.0 to 267.0

Nadir CD4>350

268.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 185.0 to 387.0

Nadir CD4 <=350

338.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 240.0 to 476.0

Month 24 Visit

Age<24 years

37.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 25.0 to 55.0

Age>=24 years

42.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 26.0 to 69.0

Baseline CD4 <=500

45.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 26.0 to 77.0

Baseline CD4 >500

36.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 25.0 to 52.0

Baseline HIV viral load <=75

42.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 30.0 to 57.0

Baseline HIV viral load >75

25.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 7.0 to 86.0

Nadir CD4>350

36.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 21.0 to 62.0

Nadir CD4 <=350

42.0
mMU/mL (Geometric Mean)
95% Confidence Interval: 29.0 to 62.0

Age, Continuous

23.5
years (Mean)
Full Range: 18.1 to 27.0

Ethnicity (NIH/OMB)

Race (NIH/OMB)

Region of Enrollment

Sex: Female, Male

Overall Study

Vaccination

Drop/Withdrawal Reasons

Vaccination