Impacts of HIV Treatment Regimens on Archived Drug Resistance
Impact of Antiretroviral Therapy (ART) Switch on Archived HIV-1 Drug Resistance in Virally Suppressed Patients: A Prospective Cohort Study
Studieöversikt
Status
Detaljerad beskrivning
Aim/objectives: With the aim of determining the impact of antiretroviral regimen and switch on archived HIV-1 drug resistance mutation (DRM), the study's objectives are, to: (a) estimate the prevalence of DRM in virally suppressed HIV infection; (b) assess changes in archived resistance before and after switch; and (c) identify predictors of archived DRM after regimen switch.
Design: A prospective observational study
Setting: All HIV specialist clinic services in Hong Kong
Methods: Adults living with HIV infection on antiretroviral therapy (ART) with full viral suppression who are planned for regimen switch would be recruited. Controls are patients with and without low level viraemia (LLV) not planned for switch, matched by antiretroviral regimen. Blood samples would be collected before switch, shortly and then 2-3 years after switch. Nanopore sequencing would be performed to identify DRM present in HIV-1 proviral DNA. Transcription of relevant clinical record data would be made to contribute to statistical and phylogenetic analyses
Main outcome measures: Change in DRM frequency between baseline and followups at (a) short term and long term; (b) occurrence of virological failure and time to failure; (c) difference in DRM frequency between presence and absence of LLV, and switched and non-switched patients.
Anticipated outcome: The study results would determine if archived resistance clearance would change following ART switch, identify factors associated with persistence of archived resistance, and inform management on the application of proviral DNA testing in clinical practice.
Studietyp
Inskrivning (Beräknad)
Kontakter och platser
Studiekontakt
- Namn: Shui Shan Lee, MD
- Telefonnummer: +852 22528812
- E-post: sslee@cuhk.edu.hk
Studera Kontakt Backup
- Namn: Ngai Sze Wong, PhD
- Telefonnummer: +852 22528862
- E-post: candy_wong@cuhk.edu.hk
Studieorter
-
-
Hong Kong
-
Hong Kong, Hong Kong, Kina, 0000
- Rekrytering
- S.H. Ho Research Centre for Infectious Diseases, The Chinese University of Hong Kong
-
Kontakt:
- Shui Shan Lee, MD
- Telefonnummer: +852 22528812
- E-post: sslee@cuhk.edu.hk
-
Kontakt:
- Ngai Sze Wong, PhD
- Telefonnummer: +852 22528862
- E-post: candy_wong@cuhk.edu.hk
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Testmetod
Studera befolkning
Beskrivning
Inclusion Criteria:
- Patients living with HIV who are (a) aged 18 or above, (b) on antiretroviral therapy, (c) has viral load <20 copies/mL at 2 time points for ≥6 months, (d) planning regimen switch.
- Patients for inclusion in the control group meet the same criteria (a) but they are not planned for switch. Controls include patients with low level viremia (LLV) as defined as ≥2 consecutive viral load level between 21 and 200 copies/mL in the preceding 2 years.
Exclusion Criteria:
- Patients living with HIV who (a) are pregnant, (b) have virologic failure, (c) are suffering from concurrent opportunistic infections, (d) are prisoners , (e) are unable to give consent, and (f) have mental illnesses.
Studieplan
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
|---|
|
Patients on ART planning for regimen switch
virally suppressed with viral undetectable at 2 consecutive timepoints prior to enrolment
|
|
Patients on ART not for regimen switch
with and without low level viraemia prior to enrolment
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Proportional difference of drug resistance mutation at short term after regimen switch
Tidsram: from enrolment to 3-6 months
|
Percentage difference between the prevalence of drug resistance mutation (DRM) detected by proviral DNA testing at baseline and short term (3-6 months) after regimen switch
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from enrolment to 3-6 months
|
|
Proportional difference of drug resistance mutation at long term after regimen switch
Tidsram: From enrolment to 2-3 years after regimen switch
|
Percentage difference between the prevalence of drug resistance mutation (DRM) detected by proviral DNA testing at baseline and long term (2-3 years) after regimen switch
|
From enrolment to 2-3 years after regimen switch
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Prevalence of drug resistance mutation
Tidsram: at enrolment
|
Percentage of patients on antiretroviral therapy with drug resistance mutation (DRM) detected by proviral DNA testing at baseline
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at enrolment
|
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Proportional Difference of drug resistance mutation prevalence between patients with and without by low level viremia
Tidsram: at enrolment
|
Percentage difference in the prevalence of drug resistance mutation (DRM) detected by proviral DNA testing between the presence and absence of low level viremia at baseline
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at enrolment
|
Andra resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Prevalence of virologic failure
Tidsram: From enrolment to 2-3 years
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Prevalence of virologic failure in patients on antiretroviral therapy at 2-3 years after enrolment
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From enrolment to 2-3 years
|
Samarbetspartners och utredare
Sponsor
Utredare
- Huvudutredare: Shui Shan Lee, MD, S.H. Ho Research Centre for Infectious Diseases, The Chinese University of Hong Kong
Studieavstämningsdatum
Studera stora datum
Studiestart (Faktisk)
Primärt slutförande (Beräknad)
Avslutad studie (Beräknad)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Faktisk)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
- Blodburna infektioner
- Urogenitala sjukdomar
- Genitala sjukdomar
- Immunsystemets sjukdomar
- Infektioner
- RNA-virusinfektioner
- Virussjukdomar
- Smittsamma sjukdomar
- Sexuellt överförbara sjukdomar, virala
- Sexuellt överförbara sjukdomar
- Lentivirusinfektioner
- Retroviridae-infektioner
- Immunologiska bristsyndrom
- HIV-infektioner
Andra studie-ID-nummer
- HK HIV archived DRM
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