Early Versus Delayed Pneumococcal Vaccination in HIV
A Pilot Study Assessing the Efficacy of Pneumococcal Vaccine in HIV Patients: Delayed Versus Immediate Immunization
3 other identifiers
interventional
79
1 country
14
Brief Summary
The purpose of this study is to determine whether people who are HIV-positive respond better to a vaccine for pneumonia-related disease when they are immunized immediately, or when immunization is delayed until the immune system has improved to a certain level. The study will also compare the effectiveness of polysaccharide and heptavalent vaccines.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Sep 2004
Typical duration for phase_1
14 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2004
CompletedFirst Submitted
Initial submission to the registry
August 26, 2005
CompletedFirst Posted
Study publicly available on registry
August 30, 2005
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2007
CompletedFebruary 13, 2014
February 1, 2014
August 26, 2005
February 11, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Number of serotypes to which a response is found
A response is defined as a doubling in antibody titer at 1 month compared to baseline.
Secondary Outcomes (5)
Antibody response at 6 months and one year
Changes in viral load 3 months post immunization
Adverse events
Overall incidence of invasive pneumococcal disease
Incidence of invasive pneumococcal disease between vaccines
Study Arms (4)
Pneumovax/immediate
EXPERIMENTALPneumovax/delayed
EXPERIMENTALPrevnar/immediate
EXPERIMENTALPrevnar/delayed
EXPERIMENTALInterventions
Eligibility Criteria
You may qualify if:
- HIV-positive
- Between 18 and 65 years of age
- Have a CD4 cell count below 200 cells/mm3
- Willing to begin/change antiretroviral therapy
- Willing and able to provide informed consent
You may not qualify if:
- Pregnant or breastfeeding
- Have had previous pneumococcal vaccination
- Have had occurrence of pneumococcal infection (brain, blood or lung infections) in past 5 years
- Have hypersensitivity to components of either vaccine
- Have acute feverish illness at the time of vaccination
- Have had splenectomy (removal of the spleen)
- Have received treatment with IVIG within the last 6 months
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (14)
Medical Arts Health Research Group
Kelowna, British Columbia, V1Y 1T2, Canada
Downtown IDC
Vancouver, British Columbia, Canada
St. Paul's Hospital
Vancouver, British Columbia, Canada
St. Boniface General Hospital
Winnipeg, Manitoba, Canada
Moncton Hospital
Windsor, New Brunswick, Canada
Victoria General
Halifax, Nova Scotia, Canada
McMaster University
Hamilton, Ontario, Canada
St. Joseph's Hospital
London, Ontario, Canada
Sunnybrook
Toronto, Ontario, Canada
Toronto General
Toronto, Ontario, Canada
Metropolitan Hospital
Windsor, Ontario, Canada
Montreal Chest/Royal-Victoria
Montreal, Quebec, Canada
Centre Hospitalier Universitaire de Sherbrooke
Sherbrooke, Quebec, Canada
Centre Hospitalier Universitaire de Laval
Ste-Foy, Quebec, Canada
Related Publications (2)
Slayter KL, Singer J, Lee TC, Kayhty H, Schlech WF. Immunization against pneumococcal disease in HIV-infected patients: conjugate versus polysaccharide vaccine before or after reconstitution of the immune system (CTN-147). Int J STD AIDS. 2013 Mar;24(3):227-31. doi: 10.1177/0956462412472450. Epub 2013 May 6.
PMID: 23535358RESULTKimby E, Schar S, Pirosa MC, Vanazzi A, Mey UM, Rauch D, Wahlin BE, Hitz F, Hernberg M, Johansson AS, de Nully Brown P, Hagberg H, Ferreri AJM, Krasniqi F, Voegeli M, Novak U, Zander T, Bersvendsen H, Mamot C, Mingrone W, Stathis A, Dirnhofer S, Hayoz S, Ostenstad B, Zucca E. Six-month rituximab-lenalidomide regimen in advanced untreated follicular lymphoma: SAKK 35/10 trial 10-year update. Blood Adv. 2025 Apr 8;9(7):1712-1719. doi: 10.1182/bloodadvances.2024014840.
PMID: 39883948DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Walter Schlech, MD
Victoria General Hospital
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- FACTORIAL
- Sponsor Type
- NETWORK
Study Record Dates
First Submitted
August 26, 2005
First Posted
August 30, 2005
Study Start
September 1, 2004
Study Completion
October 1, 2007
Last Updated
February 13, 2014
Record last verified: 2014-02