Preparing for Adolescent HIV Vaccine Trials in South Africa: (CATSA)
Preparing for Adolescent HIV Vaccine Trials in South Africa: a Multi-centre Study to Evaluate Acceptability of the HPV Vaccine in Adolescents
Studieoversigt
Status
Status
Betingelser
Betingelser
Detaljeret beskrivelse
This study will use the licensed HPV vaccine, an alternative STI vaccine, as a proxy for an HIV vaccine and thereby identify potential challenges to the inclusion of adolescents in HIV prevention trials. The study will allow for site capacity building in terms of recruiting and retaining an HIV-negative high-risk adolescent cohort, and assessing the acceptability of an STI vaccine to adolescents and their parents or guardians. Correlates of vaccine uptake, refusal, retention and attrition will be determined. In addition, the study will document the incidence of HIV, other sexually transmitted infections (STI's) and pregnancies and circumcisions in this age group. Different methods of assessing understanding in adolescents will be tested, to ensure that informed consent is being achieved. Experiences of privacy and confidentiality issues for adolescents in such research will be explored. Finally, psycho-social correlates of sexual risk and protective behaviour will be examined.
The study is designed as a longitudinal cohort study with a self-selected intervention and control group. Adolescents and parents will be recruited through community outreach and invited to attend a Vaccine Discussion Group (VDG) to learn more about the HPV vaccine. Parental/ legal guardian consent and adolescent assent will be obtained prior to screening. After screening to ensure volunteers meet inclusion criteria, 1400 participants will be enrolled across seven sites. At this point, they will decide whether or not they want to receive the HPV vaccine. Those who do will receive three doses, at 0, 2 and 6 months. All participants will undergo HIV and pregnancy testing, receive risk reduction counseling and complete questionnaires at 0, 2, 6 and 9 months. Recruitment and retention will be monitored and data as described above will be collected throughout the course of the study.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Kontakter og lokationer
Studiesteder
-
-
-
Cape Town, Sydafrika
- Desmond Tutu HIV Centre
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Youth age 12-17 years
- For 12-15 year olds - no sexual risk criteria
- For 16-17 year olds (the age of lawful consent to sex in South Africa): sexually active (ever had sexual intercourse)
- Willing to participate in HIV testing and counseling
- Willing and able to assent to study
- Parent or legal guardian willing to provide written consent
- HIV-negative serostatus at screening and enrolment
- Females must have a negative pregnancy test at screening/enrolment
Females must not be breastfeeding
- Additional inclusion criteria for those accepting HPV vaccination:
- No HPV immunizations
- Females should agree to avoid pregnancy through to the end of the study and to take contraceptives throughout the study (access provided)
Exclusion Criteria:
Exclusion criteria for those accepting HPV vaccination:
- Presence of any serious illness requiring treatment with systemic medications, excluding short course oral steroids or inhaled steroid treatment for asthma
- Contra-indication to vaccination, such as bleeding disorder
- Previous allergic reaction to any vaccines or to constituents of these vaccines (yeast, thimerosal or aluminum)
- Current immunomodulator therapy
- Receipt of immunosuppressor therapy (more than 10mg/day of prednisone or equivalent for >1 week) in the 6 months preceding enrollment date
- Receipt of any vaccine within two weeks preceding enrollment date
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: Kohorte
- Tidsperspektiver: Fremadrettet
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
|---|
|
HPV vaccine
Those choosing to receive the HPV vaccine
|
|
no HPV vaccine
Those choosing not to receive the HPV vaccine
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Recruitment and retention
Tidsramme: 9 months
|
9 months
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Linda-Gail Bekker, MBChB PhD, Desmond Tutu HIV Centre
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Patologiske processer
- RNA-virusinfektioner
- Virussygdomme
- Blodbårne infektioner
- Seksuelt overførte sygdomme, virale
- Seksuelt overførte sygdomme
- Lentivirus infektioner
- Retroviridae infektioner
- Immunologiske mangelsyndromer
- Sygdomme i immunsystemet
- Sygdomsegenskaber
- Langsomme virussygdomme
- HIV-infektioner
- Infektioner
- Overførbare sygdomme
- Erhvervet immundefektsyndrom
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 35384
- CT.2006.33111.004
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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