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Pneumococcal Conjugate Vaccination in HIV in Comparison to Polysaccharide Vaccine Boosting

An Open-Label, Phase III, Randomized Study of Pneumococcal Conjugate Vaccination in HIV, in Comparison to Polysaccharide Vaccine Boosting in Previously Vaccinated Patients

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00622843
Enrollment
275
Registered
2008-02-25
Start date
2002-12-31
Completion date
2013-07-31
Last updated
2025-06-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Infections, Streptococcus Pneumoniae

Keywords

pneumococcal conjugate vaccine, polysaccharide vaccine, PPV, PCV, Streptococcus pneumoniae, Prevnar, Pneumovax, HIV

Brief summary

Purpose: To study the immune response of the newly licensed pneumococcal conjugate vaccine (PCV) in comparison to the pneumococcal polysaccharide vaccine (PPV) to determine if a significantly better immunologic response to boosting can be elicited in patients previously vaccinated with PPV.

Interventions

Prevnar is manufactured as a liquid preparation. Each 0.5 mL dose is formulated to contain: 2 μg of each saccharide for serotypes 4, 9V, 14, 18C, 19F, and 23F, and 4 μg of serotype 6B per dose (16 μg total saccharide); approximately 20 μg of CRM197 carrier protein; and 0.125 mg of aluminum per 0.5 mL dose as aluminum phosphate adjuvant. After shaking, the vaccine is a homogeneous, white suspension.

PNEUMOVAX 23 is manufactured according to methods developed by the Merck Research Laboratories. Each 0.5 mL dose of vaccine contains 25 μg of each polysaccharide type in isotonic saline solution containing 0.25% phenol as a preservative.

Sponsors

Infectious Diseases Clinical Research Program
CollaboratorOTHER
National Institute of Allergy and Infectious Diseases (NIAID)
CollaboratorNIH
US Military HIV Research Program
CollaboratorNETWORK
Uniformed Services University of the Health Sciences
CollaboratorFED
Henry M. Jackson Foundation for the Advancement of Military Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

for HIV positive subjects: 1. At least one prior PPV ≥ 3 and \< 8 years ago, while HIV positive. There is no upper limit to the number of previously received PPVs. 2. HIV-positive (except 25 HIV-negative persons as control group). 3. Age between 18 and 60 years of age. 4. Availability of patient to remain within the immediate area for the period of the study and be able to comply with protocol requirements.

Exclusion criteria

for HIV positive subjects: 1. Prior allergic reaction to the PPV 2. Allergic to components of PCV, including diphtheria toxin. 3. Pregnant or lactating females as defined by history or positive HCG urine test. 4. History of chronic viral hepatitis or biochemical evidence to include pretreatment AST or ALT values greater than 3 fold higher than upper limit of normal, or a creatinine of greater than 1.8 mg/dl 5. History of splenectomy 6. Temperature of \>38C 7. Inability to ambulate for more than 1000 meters secondary to fatigue, pain or weakness. 8. Patients in whom IM vaccination is not possible because of disease or medication. (e.g. hemophilia, coumadin therapy). 9. Patients diagnosed with HIV wasting disease 10. Viral load over 50,000 copies/ml. 11. History or evidence of recent illicit drug or alcohol abuse. 12. Use of immunosuppressive agents, to include corticosteroids and cancer chemotherapeutic agents. Inclusion Criteria for HIV negative subjects: 1. HIV-negative by HIV ELISA within the last 12 months 2. Age between 18 and 60 years of age. 3. Availability of patient to remain within the immediate area for the period of the study and be able to comply with protocol requirements.

Design outcomes

Primary

MeasureTime frameDescription
Positive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14, 60, and 180 after vaccinationThe primary end point is greater than or equal to a 2-fold increase in the IgG level for at least 2 of the 4 serotypes on day 60, with levels greater than or equal to 1000 ng/mL.
Adverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationDay 7 after vaccination

Secondary

MeasureTime frameDescription
Assessment of CD4+ Cell Count Changes Caused by Vaccination With PCV and PPV.Day 14, 60, and 180 after vaccinationThe pairwise change in CD4+ cell count from the time of screening to each time frame (day 14, day 60 and day 180 post-vaccination) (CD4+ cell count at day 14/60/180 \[minus\] CD4+ cell count at screening). Analysis Population Description (further details): not all participants completed each follow-up visit. Therefore, a different number of participants analyzed is noted for each visit day. For example, in Group 1, 131 participants completed the screening visit but only 129 completed Day 14, and only 123 completed Day 60, etc.
Assessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.Day 60 after vaccinationNumber with ≥ Successes, which is defined as: Success = 2-fold increase on Log10 scale -- if log10(Day 60) - log10(Screening) \> log10(2)
Assessment of Viral Load Changes Caused by Vaccination With PCV and PPV.Day 14, 60, and 180 after vaccinationThe pairwise change in viral load from the time of screening to each time frame (day 14, day 60 and day 180 post-vaccination), similar to CD4 change above.

Countries

United States

Participant flow

Pre-assignment details

345 is the number of potential subjects that was approved for enrollment by the IRB (Group 1 PCV = 210; Group 2 PPV = 110; Group 3 HIV-negative = 25). 275 is the total number of subjects who actually consented to participate. 229 is the number of subject who were vaccinated. In 2008, the DSMB voted unanimously to recommend no further enrollment.

Participants by arm

ArmCount
Group 1
PCV, 210 patients pneumococcal conjugate vaccine: Prevnar is manufactured as a liquid preparation. Each 0.5 mL dose is formulated to contain: 2 μg of each saccharide for serotypes 4, 9V, 14, 18C, 19F, and 23F, and 4 μg of serotype 6B per dose (16 μg total saccharide); approximately 20 μg of CRM197 carrier protein; and 0.125 mg of aluminum per 0.5 mL dose as aluminum phosphate adjuvant. After shaking, the vaccine is a homogeneous, white suspension.
131
Group 2
PPV, 110 patients pneumococcal polysaccharide vaccine: PNEUMOVAX 23 is manufactured according to methods developed by the Merck Research Laboratories. Each 0.5 mL dose of vaccine contains 25 μg of each polysaccharide type in isotonic saline solution containing 0.25% phenol as a preservative.
73
Group 3
PCV, HIV-negative, 25 patients pneumococcal conjugate vaccine: Prevnar is manufactured as a liquid preparation. Each 0.5 mL dose is formulated to contain: 2 μg of each saccharide for serotypes 4, 9V, 14, 18C, 19F, and 23F, and 4 μg of serotype 6B per dose (16 μg total saccharide); approximately 20 μg of CRM197 carrier protein; and 0.125 mg of aluminum per 0.5 mL dose as aluminum phosphate adjuvant. After shaking, the vaccine is a homogeneous, white suspension.
25
Total229

Baseline characteristics

CharacteristicGroup 1Group 2Group 3Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
131 Participants73 Participants25 Participants229 Participants
CD4 T cell count533 cells/mm^3513 cells/mm^3533 cells/mm^3
CDC stage
A
91 Participants55 Participants146 Participants
CDC stage
B
25 Participants9 Participants34 Participants
CDC stage
C
15 Participants9 Participants24 Participants
Current receipt of HAART111 Participants56 Participants167 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants11 Participants3 Participants26 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
119 Participants62 Participants22 Participants203 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
IgG levels at baseline
Serotype 14
860 ng/mL771 ng/mL254 ng/mL765 ng/mL
IgG levels at baseline
Serotype 19F
723 ng/mL480 ng/mL737 ng/mL647 ng/mL
IgG levels at baseline
Serotype 4
293 ng/mL254 ng/mL264 ng/mL277 ng/mL
IgG levels at baseline
Serotype 9V
556 ng/mL425 ng/mL746 ng/mL535 ng/mL
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants0 Participants0 Participants2 Participants
Race (NIH/OMB)
Asian
3 Participants3 Participants2 Participants8 Participants
Race (NIH/OMB)
Black or African American
50 Participants27 Participants2 Participants79 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants3 Participants0 Participants7 Participants
Race (NIH/OMB)
White
71 Participants40 Participants21 Participants132 Participants
Region of Enrollment
United States
131 Participants73 Participants25 Participants229 Participants
Sex: Female, Male
Female
11 Participants3 Participants7 Participants21 Participants
Sex: Female, Male
Male
120 Participants70 Participants18 Participants208 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 1310 / 730 / 25
other
Total, other adverse events
51 / 13123 / 7324 / 25
serious
Total, serious adverse events
0 / 1310 / 730 / 25

Outcome results

Primary

Adverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal Vaccination

Time frame: Day 7 after vaccination

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Group 1 - PCVAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs =136 Participants
Group 1 - PCVAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs = 080 Participants
Group 1 - PCVAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs >/= 215 Participants
Group 2 - PPVAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs =117 Participants
Group 2 - PPVAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs = 050 Participants
Group 2 - PPVAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs >/= 26 Participants
Group 3 - HIV-negativeAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs = 01 Participants
Group 3 - HIV-negativeAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs >/= 211 Participants
Group 3 - HIV-negativeAdverse Events (AEs) Occurring Temporally (Within 7 Days) in Association With Pneumococcal VaccinationNumber of AEs =113 Participants
Primary

Positive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) Arms

The primary end point is greater than or equal to a 2-fold increase in the IgG level for at least 2 of the 4 serotypes on day 60, with levels greater than or equal to 1000 ng/mL.

Time frame: Day 14, 60, and 180 after vaccination

Population: The number of participants analyzed represents the number of participants who were actually vaccinated from those who consented to participate.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 1457 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : At least 3 of 4 serotypes37 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 454 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 9V68 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : At least 2 of 4 serotypes67 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 419F37 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : At least 2 of 4 serotypes68 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : At least 3 of 4 serotypes37 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 448 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 9V63 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 1461 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 419F42 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : At least 2 of 4 serotypes47 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : At least 3 of 4 serotypes26 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 437 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 9V49 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 1447 Participants
Group 1 - PCVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 419F38 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 419F13 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : At least 2 of 4 serotypes23 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 9V25 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : At least 2 of 4 serotypes30 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : At least 3 of 4 serotypes11 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 416 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 9V24 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 417 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 1428 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 1422 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 9V22 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 415 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : At least 3 of 4 serotypes11 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 1427 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : At least 3 of 4 serotypes9 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 419F12 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 419F12 Participants
Group 2 - PPVPositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : At least 2 of 4 serotypes23 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 419F14 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : At least 2 of 4 serotypes22 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : At least 3 of 4 serotypes16 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 418 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 418 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 419F12 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 9V21 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 1418 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 9V22 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 60 : Serotype 419F20 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : At least 2 of 4 serotypes22 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : At least 3 of 4 serotypes16 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : At least 2 of 4 serotypes21 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 417 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 9V22 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 14 : Serotype 1418 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : At least 3 of 4 serotypes16 Participants
Group 3 - HIV-negativePositive Immune Responses in the Human Immunodeficiency Virus (HIV)-Infected Pneumococcal Conjugate Vaccine (PCV) and Pneumococcal Polysaccharide Vaccine (PPV) ArmsDay 180 : Serotype 1418 Participants
Secondary

Assessment of CD4+ Cell Count Changes Caused by Vaccination With PCV and PPV.

The pairwise change in CD4+ cell count from the time of screening to each time frame (day 14, day 60 and day 180 post-vaccination) (CD4+ cell count at day 14/60/180 \[minus\] CD4+ cell count at screening). Analysis Population Description (further details): not all participants completed each follow-up visit. Therefore, a different number of participants analyzed is noted for each visit day. For example, in Group 1, 131 participants completed the screening visit but only 129 completed Day 14, and only 123 completed Day 60, etc.

Time frame: Day 14, 60, and 180 after vaccination

Population: Number of participants analyzed for each time frame: Group 1 (Day 14=129/131; Day 60=123/131; Day 180=119/131); Group 2 (Day 14=69/73; Day 60=67/73; Day 180=67/73). Group 3 = 0 since these data are not applicable to HIV-negative subjects.

ArmMeasureGroupValue (MEAN)Dispersion
Group 1 - PCVAssessment of CD4+ Cell Count Changes Caused by Vaccination With PCV and PPV.Day 14 (CD4)40.17 cells/mm^3Standard Error 22.29
Group 1 - PCVAssessment of CD4+ Cell Count Changes Caused by Vaccination With PCV and PPV.Day 60 (CD4)13.20 cells/mm^3Standard Error 21.13
Group 1 - PCVAssessment of CD4+ Cell Count Changes Caused by Vaccination With PCV and PPV.Day 180 (CD4)29.65 cells/mm^3Standard Error 21.57
Group 2 - PPVAssessment of CD4+ Cell Count Changes Caused by Vaccination With PCV and PPV.Day 14 (CD4)14.66 cells/mm^3Standard Error 28.08
Group 2 - PPVAssessment of CD4+ Cell Count Changes Caused by Vaccination With PCV and PPV.Day 60 (CD4)22.57 cells/mm^3Standard Error 30.73
Group 2 - PPVAssessment of CD4+ Cell Count Changes Caused by Vaccination With PCV and PPV.Day 180 (CD4)12.22 cells/mm^3Standard Error 27.81
Secondary

Assessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.

Number with ≥ Successes, which is defined as: Success = 2-fold increase on Log10 scale -- if log10(Day 60) - log10(Screening) \> log10(2)

Time frame: Day 60 after vaccination

Population: The number analyzed in the rows is based on the number of participants who had the CD4+ counts in each category at baseline. This data is not applicable to Group 3 since they are HIV-negative.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Group 1 - PCVAssessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.</= 350 cells/mm^38 Participants
Group 1 - PCVAssessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.351-500 cells/mm^322 Participants
Group 1 - PCVAssessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.501-750 cells/mm^338 Participants
Group 1 - PCVAssessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.>/= 751 cells/mm^314 Participants
Group 2 - PPVAssessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.>/= 751 cells/mm^35 Participants
Group 2 - PPVAssessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.</= 350 cells/mm^35 Participants
Group 2 - PPVAssessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.501-750 cells/mm^312 Participants
Group 2 - PPVAssessment of the Importance of the Host Immune Status (CD4+ Count) on the PCV and PPV Immunologic Response.351-500 cells/mm^313 Participants
Secondary

Assessment of Viral Load Changes Caused by Vaccination With PCV and PPV.

The pairwise change in viral load from the time of screening to each time frame (day 14, day 60 and day 180 post-vaccination), similar to CD4 change above.

Time frame: Day 14, 60, and 180 after vaccination

Population: Number of participants analyzed for each time frame: Group 1 (Day 14=129/131; Day 60=123/131; Day 180=117/131); Group 2 (Day 14=70/72; Day 60=68/72; Day 180=68/72). Group 3 = 0 since these data are not applicable to HIV-negative subjects.

ArmMeasureGroupValue (MEAN)Dispersion
Group 1 - PCVAssessment of Viral Load Changes Caused by Vaccination With PCV and PPV.Day 60 (viral load)-0.05 log10 copies/mLStandard Error 0.08
Group 1 - PCVAssessment of Viral Load Changes Caused by Vaccination With PCV and PPV.Day 14 (viral load)-0.02 log10 copies/mLStandard Error 0.08
Group 1 - PCVAssessment of Viral Load Changes Caused by Vaccination With PCV and PPV.Day 180 (viral load)-0.03 log10 copies/mLStandard Error 0.09
Group 2 - PPVAssessment of Viral Load Changes Caused by Vaccination With PCV and PPV.Day 14 (viral load)0.03 log10 copies/mLStandard Error 0.12
Group 2 - PPVAssessment of Viral Load Changes Caused by Vaccination With PCV and PPV.Day 60 (viral load)0.08 log10 copies/mLStandard Error 0.14
Group 2 - PPVAssessment of Viral Load Changes Caused by Vaccination With PCV and PPV.Day 180 (viral load)0.01 log10 copies/mLStandard Error 0.13

Source: ClinicalTrials.gov · Data processed: Mar 30, 2026