Free Standard AU & NZ Shipping For All Book Orders Over $80!
Register      Login
Microbiology Australia Microbiology Australia Society
Microbiology Australia, bringing Microbiologists together
RESEARCH ARTICLE

Antiretroviral therapy: research, rollout and resistance

Angie N Pinto A and David A Cooper A
+ Author Affiliations
- Author Affiliations

The Kirby Institute
Wallace Wurth Building
UNSW Australia
Sydney, NSW 2052, Australia
Email: apinto@kirby.unsw.edu.au
dcooper@kirby.unsw.edu.au

Microbiology Australia 35(2) 79-82 https://doi.org/10.1071/MA14024
Published: 7 May 2014

Abstract

Antiretroviral therapy has revolutionised the management of human immunodeficiency virus (HIV). Advances in research leading to the development of combination antiretroviral therapies (ARTs) have led to significant decreases in AIDS related morbidity and increases in life expectancy for individuals with access to treatment. The goal of ‘getting to zero:zero AIDs related deaths' now is within reach. Globally nearly 10million people have access to ART; however, further rollout efforts are required to reach the 34million people living with HIV sustainably over the long term. Changing paradigms see a broader scope for ART with a push towards earlier initiation, and even pre-exposure prophylaxis, with public health goals of preventing new infections. In Australia, collaborative research efforts, bipartisan political will and subsidised medication costs have allowed around 13000 people to be maintained on antiretroviral therapy. Despite this, the challenges of continuous lifelong suppressive therapy remain, as currently there is no cure. Poor adherence can lead to disease progression and drug resistance, limiting future treatment options. Antiretroviral resistance in Australia appears to have been stable, but changing epidemiology and evolving viral subtypes may impact these rates. This article will reflect on the advances in antiretroviral research, rollout and resistance in our region.


References

[1]  Australian Government Standing Council on Health Report on Progress on the Australian Response to HIV and AIDS. pp. 20.

[2]  Correll, P.K. et al. (1998) HIV disease progression in Australia in the time of combination antiretroviral therapies. Med. J. Aust. 169, 469–472.
| 1:STN:280:DyaK1M%2FmsVeltg%3D%3D&md5=353951feec702d23344fcafb6e52d7e3CAS | 9847898PubMed |

[3]  van Sighem, A.I. et al. (2010) Life expectancy of recently diagnosed asymptomatic HIV-infected patients approaches that of uninfected individuals. AIDS 24, 1527–1535.
Life expectancy of recently diagnosed asymptomatic HIV-infected patients approaches that of uninfected individuals.Crossref | GoogleScholarGoogle Scholar | 20467289PubMed |

[4]  McManus, H. et al. (2012) Long-term survival in HIV positive patients with up to 15 years of antiretroviral therapy. PLoS ONE 7, e48839.
Long-term survival in HIV positive patients with up to 15 years of antiretroviral therapy.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xhslehs7zJ&md5=2bd3cf95af62c83e767edefa1b7a8b49CAS | 23144991PubMed |

[5]  ASHM (2013) What to start: initial combination regimens for the antiretroviral-naïve patient. ASHM http://arv.ashm.org.au/arv-guidelines/what-to-start

[6]  WHO (2013) Consolidated guidelines on the use of antiretroviral drugs for treating and preventing HIV infection. WHO Press, World Health Organization. http://www.who.int/hiv/pub/guidelines/arv2013/download/en/

[7]  Aghokeng, A.F. et al. (2014) Extraordinary heterogeneity of virological outcomes in patients receiving highly antiretroviral therapy and monitored with the World Health Organization public health approach in sub-saharan Africa and southeast Asia. Clin. Infect. Dis. 58, 99–109.
Extraordinary heterogeneity of virological outcomes in patients receiving highly antiretroviral therapy and monitored with the World Health Organization public health approach in sub-saharan Africa and southeast Asia.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3sXhvFeqt77O&md5=98d6061ac3ee53d062dc2954bab265d5CAS | 24076968PubMed |

[8]  Petoumenos, K. (2013) The Australian HIV Observational Database Temporary Residents Access Study (ATRAS) In One year follow-up, The Kirby Institute University of New South Wales

[9]  Boyd, M.A. and Cooper, D.A. (2013) SPRING-2 the future of antiretroviral therapy. Lancet Infect. Dis. 13, 908–909.
SPRING-2 the future of antiretroviral therapy.Crossref | GoogleScholarGoogle Scholar | 24074643PubMed |

[10]  Boyd, M.A. et al. (2013) Ritonavir-boosted lopinavir plus nucleoside or nucleotide reverse transcriptase inhibitors versus ritonavir-boosted lopinavir plus raltegravir for treatment of HIV-1 infection in adults with virological failure of a standard first-line ART regimen (SECOND-LINE): a randomised, open-label, non-inferiority study. Lancet 381, 2091–2099.
Ritonavir-boosted lopinavir plus nucleoside or nucleotide reverse transcriptase inhibitors versus ritonavir-boosted lopinavir plus raltegravir for treatment of HIV-1 infection in adults with virological failure of a standard first-line ART regimen (SECOND-LINE): a randomised, open-label, non-inferiority study.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3sXpsV2mt78%3D&md5=3fc6d7cc5358c9dfbb542314b7e18a6fCAS | 23769235PubMed |

[11]  Ammaranond, P. et al. (2003) No increase in protease resistance and a decrease in reverse transcriptase resistance mutations in primary HIV-1 infection: 1992–2001. AIDS 17, 264–267.
No increase in protease resistance and a decrease in reverse transcriptase resistance mutations in primary HIV-1 infection: 1992–2001.Crossref | GoogleScholarGoogle Scholar | 12545090PubMed |

[12]  Russell, J.S. et al. (2009) Prevalence of transmitted HIV drug resistance since the availability of highly active antiretroviral therapy. Commun. Dis. Intell. Q. Rep. 33, 216–220.
| 19877541PubMed |

[13]  Ammaranond, P. et al. (2003) Rates of transmission of antiretroviral drug resistant strains of HIV-1. J. Clin. Virol. 26, 153–161.
Rates of transmission of antiretroviral drug resistant strains of HIV-1.Crossref | GoogleScholarGoogle Scholar | 12600647PubMed |

[14]  Hawke, K.G. et al. (2013) HIV non-B subtype distribution: emerging trends and risk factors for imported and local infections newly diagnosed in South Australia. AIDS Res. Hum. Retroviruses 29, 311–317.
| 23098890PubMed |

[15]  Chibo, D. and Birch, C. (2012) Increasing diversity of human immunodeficiency virus type 1 subtypes circulating in Australia. AIDS Res. Hum. Retroviruses 28, 578–583.
Increasing diversity of human immunodeficiency virus type 1 subtypes circulating in Australia.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XotVOgsL4%3D&md5=838c8d704e34b582fd816fd0e61b2535CAS | 22077905PubMed |

[16]  Lemoh, C. et al. (2013) Acquisition of HIV by African-born residents of Victoria, Australia: insights from molecular epidemiology. PLoS ONE 8, e84008.
Acquisition of HIV by African-born residents of Victoria, Australia: insights from molecular epidemiology.Crossref | GoogleScholarGoogle Scholar | 24391866PubMed |

[17]  Grelotti, D.J. et al. (2014) Whoonga: potential recreational use of HIV antiretroviral medication in South Africa. AIDS Behav. 18, 511–518.
Whoonga: potential recreational use of HIV antiretroviral medication in South Africa.Crossref | GoogleScholarGoogle Scholar | 23955659PubMed |

[18]  Zablotska, I.B. et al. (2013) The informal use of antiretrovirals for preexposure prophylaxis of HIV infection among gay men in Australia. J. Acquir. Immune Defic. Syndr. 62, 334–338.
The informal use of antiretrovirals for preexposure prophylaxis of HIV infection among gay men in Australia.Crossref | GoogleScholarGoogle Scholar | 23187947PubMed |

[19]  Delva, W. and Abdool Karim, Q. (2014) The HIV epidemic in Southern Africa – is an AIDS-free generation possible? Curr. HIV/AIDS Rep. , .
The HIV epidemic in Southern Africa – is an AIDS-free generation possible?Crossref | GoogleScholarGoogle Scholar | 24676559PubMed |

[20]  Hogg, R.S. et al. (2013) Rates of new infections in British Columbia continue to decline at a faster rate than in other Canadian regions. HIV Med. 14, 581–582.
Rates of new infections in British Columbia continue to decline at a faster rate than in other Canadian regions.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC3sbosVCnuw%3D%3D&md5=4c2167a7b04ed05ba522c3ca7e26f563CAS | 24033869PubMed |

[21]  Miller, W.C. et al. (2013) Community viral load as a measure for assessment of HIV treatment as prevention. Lancet Infect. Dis. 13, 459–464.
Community viral load as a measure for assessment of HIV treatment as prevention.Crossref | GoogleScholarGoogle Scholar | 23537801PubMed |

[22]  ENCORE1StudyGroup (2014) Efficacy of 400 mg efavirenz versus standard 600 mg dose in HIV-infected, antiretroviral-naive adults (ENCORE1): a randomised, double-blind, placebo-controlled, non-inferiority trial. Lancet 383, 1474–1482.
Efficacy of 400 mg efavirenz versus standard 600 mg dose in HIV-infected, antiretroviral-naive adults (ENCORE1): a randomised, double-blind, placebo-controlled, non-inferiority trial.Crossref | GoogleScholarGoogle Scholar | 24522178PubMed |