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A Long-term Follow-up of the HIV-NAT Cohort

This study is currently recruiting participants.
Verified February 2017 by The HIV Netherlands Australia Thailand Research Collaboration
ClinicalTrials.gov Identifier:
First Posted: December 15, 2006
Last Update Posted: February 24, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
Information provided by (Responsible Party):
The HIV Netherlands Australia Thailand Research Collaboration
With HIV/AIDS increasingly considered a chronic disease, 24-, or 48-week data from antiretroviral studies are no longer sufficient. Only with long-term follow-up and outcome data will shed some much-needed light on the answers of questions that have stumped us for several years. Data from a large observational cohort of patients treated with combination antiretroviral therapy will provide further insights into the long-term safety and durability of various antiretroviral therapeutic approached, the efficacy of HIV viral load and CD4 cell counts as predictors of disease progression and mortality, and the importance of adherence.

HIV Infections

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: A Long-term Follow-up Study for HIV-infected Individuals Who Have Participated in HIV-NAT Study Protocols

Resource links provided by NLM:

Further study details as provided by The HIV Netherlands Australia Thailand Research Collaboration:

Primary Outcome Measures:
  • HIV infection [ Time Frame: 30 years ]

    This cohort will collect various information such as but not limited to:

    comorbidity, mortality, cardiovascular, neurological clinical data, treatment history, serious adverse events, PBMCs, clinical outcomes, virological outcomes, resistance, failure, aging, other opportunistic infections, etc

Biospecimen Retention:   Samples With DNA
PBMC collection once a year

Estimated Enrollment: 10000
Study Start Date: November 2002
Estimated Study Completion Date: December 2020
Estimated Primary Completion Date: December 2020 (Final data collection date for primary outcome measure)
Detailed Description:

Primary Objective:

To collect and evaluate long-term clinical outcomes of HIV infected participants previously enrolled in HIV-NAT trials.

Secondary Objective:

To Assess:

  1. Long-term consequences of initiation of antiretroviral as predicted by baseline CD4 cell count and/or baseline plasma HIV RNA level
  2. Incidence of lipodystrophy and other metabolic complications in three different groups of patients initially treated with NRTI-based regimens, NNRTI-based regimens, or PI-based regimens
  3. Class-specific incidence of lipodystrophy and metabolic complications such as d4T versus AZT, nevirapine versus efavirenz and individual PIs (IDV, SQV, Kaletra, and atazanavir)
  4. Resistance profiles in patients on different antiretroviral regimens
  5. Long-term consequences of antiretroviral agents on cardiovascular, renal, hepatic, and endocrine function, skin, gastrointestinal system and urogentital tract
  6. Incidence of opportunistic infections or malignancy including hepatocarcinoma in patients with HIV/HCV or HIV/HBV co-infection
  7. Immune recovery syndrome
  8. Adherence to different antiretroviral regimens
  9. Quality of life

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
All HIV infected adult patients from HIV-NAT.

Inclusion Criteria:

  • HIV infected patients( children and adults) previously participated HIV-NAT studies
  • HIV infected patients( children and adults) currently participate in HIV-NAT trials
  • Able to provide written consent

Exclusion Criteria:

  • Unable to provide written consent
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00411983

Contact: Anchalee Avihingsanon, MD, PhD 66 2 2557334-5 ext 107 anchalee.a@hivnat.org
Contact: Stephen Kerr, PhD 66 2 2557334-5 ext 138 s.kerr@unsw.edu.au

HIV-NAT, Thai Red Cross AIDS Research Center Recruiting
Bangkok, Thailand, 10330
Principal Investigator: Praphan Phanuphak, MD, PhD         
Sponsors and Collaborators
The HIV Netherlands Australia Thailand Research Collaboration
Principal Investigator: Praphan Phanuphak, MD, PhD HIV-NAT, Thai Red Cross AIDS Research Center
  More Information

Additional Information:
Law WP, Duncombe CJ, Mahanontharit A, Boyd MA, Ruxrungtham K, Lange JM, Phanuphak P, Cooper DA, Dore GJ. Impact of viral hepatitis co-infection on response to antiretroviral therapy and HIV disease progression in the HIV-NAT cohort. AIDS. 2004 May 21;18(8):1169-77.
Law WP, Dore GJ, Duncombe CJ, Mahanontharit A, Boyd MA, Ruxrungtham K, Lange JM, Phanuphak P, Cooper DA. Risk of severe hepatotoxicity associated with antiretroviral therapy in the HIV-NAT Cohort, Thailand, 1996-2001. AIDS. 2003 Oct 17;17(15):2191-9.
Avihingsanon A, Kerr SJ, Punyawudho B, van der Lugt J, Gorowara M, Ananworanich J, Lange JM, Cooper DA, Phanuphak P, Burger DM, Ruxrungtham K. Short communication: Aging not gender is associated with high atazanavir plasma concentrations in Asian HIV-infected patients. AIDS Res Hum Retroviruses. 2013 Dec;29(12):1541-6. doi: 10.1089/aid.2013.0069. Epub 2013 Oct 2.
Clarke A, Kerr S, Honeybrook A, Cooper DA, Avihingsanon A, Duncombe C, Phanuphak P, Ruxrungtham K, Ananworanich J, Kaldor J. Adherence and Risk Behaviour in Patients with HIV Infection Receiving Antiretroviral Therapy in Bangkok. Open Virol J. 2012;6:23-8. doi: 10.2174/1874357901206010023. Epub 2012 Feb 24.
Nuesch R, Srasuebkul P, Ananworanich J, Ruxrungtham K, Phanuphak P, Duncombe C; HIV-NAT Study Team. Monitoring the toxicity of antiretroviral therapy in resource limited settings: a prospective clinical trial cohort in Thailand. J Antimicrob Chemother. 2006 Sep;58(3):637-44.
Avihingsanon A, Tongkobpetch S, Kerr SJ, Punyawudho B, Suphapeetiporn K, Gorowara M, Ruxrungtham K, Shotelersuk V. Pharmacogenetic testing can identify patients taking atazanavir at risk for hyperbilirubinemia. J Acquir Immune Defic Syndr. 2015 May 1;69(1):e36-7. doi: 10.1097/QAI.0000000000000540.
Kerr SJ, Punyawudho B, Thammajaruk N, Colbers A, Chaiyahong P, Phonphithak S, Sapsirisavat V, Ruxrungtham K, Burger DM, Avihingsanon A. Factors associated with daily tenofovir exposure in Thai subjects taking combination antiretroviral therapy. AIDS Res Hum Retroviruses. 2015 Apr;31(4):368-74. doi: 10.1089/AID.2014.0249. Epub 2014 Dec 17.
Avihingsanon A, Ramautarsing RA, Suwanpimolkul G, Chetchotisakd P, Bowonwatanuwong C, Jirajariyavej S, Kantipong P, Tantipong H, Ohata JP, Suankratay C, Ruxrungtham K, Burger DM. Ergotism in Thailand caused by increased access to antiretroviral drugs: a global warning. Top Antivir Med. 2014 Jan;21(5):165-8.
Avihingsanon A, Jitmitraparp S, Tangkijvanich P, Ramautarsing RA, Apornpong T, Jirajariyavej S, Putcharoen O, Treeprasertsuk S, Akkarathamrongsin S, Poovorawan Y, Matthews GV, Lange JM, Ruxrungtham K; HIV-NAT125 study team. Advanced liver fibrosis by transient elastography, fibrosis 4, and alanine aminotransferase/platelet ratio index among Asian hepatitis C with and without human immunodeficiency virus infection: role of vitamin D levels. J Gastroenterol Hepatol. 2014 Sep;29(9):1706-14. doi: 10.1111/jgh.12613.
Wattanakul T, Avihingsanon A, Manosuthi W, Punyawudho B. Population pharmacokinetics of nevirapine in Thai HIV-infected patients. Antivir Ther. 2014;19(7):651-60. doi: 10.3851/IMP2741. Epub 2014 Feb 6.
Durier N, Ananworanich J, Apornpong T, Ubolyam S, Kerr SJ, Mahanontharit A, Ferradini L, Ruxrungtham K, Avihingsanon A. Cytomegalovirus viremia in Thai HIV-infected patients on antiretroviral therapy: prevalence and associated mortality. Clin Infect Dis. 2013 Jul;57(1):147-55. doi: 10.1093/cid/cit173. Epub 2013 Mar 19.
Praditpornsilpa K, Avihingsanon A, Chaiwatanarat T, Chaiyahong P, Wongsabut J, Ubolyam S, Chulakadabba A, Avihingsanon Y, Ruxrungtham K, Tunsanga K, Eiam-Ong S, Phanuphak P. Comparisons between validated estimated glomerular filtration rate equations and isotopic glomerular filtration rate in HIV patients. AIDS. 2012 Sep 10;26(14):1781-8. doi: 10.1097/QAD.0b013e328356480d. Erratum in: AIDS. 2013 Mar 13;27(5):853.
Kerr SJ, Duncombe C, Avihingsanon A, Ananworanich J, Boyd M, Sopa B, Medtech B, Chuenyam T, Cooper DA, Lange JM, Phanuphak P, Ruxrungtham K. Dyslipidemia in an Asian population after treatment for two years with protease inhibitor-containing regimens. J Int Assoc Physicians AIDS Care (Chic). 2007 Mar;6(1):36-46.
Avihingsanon A, Avihingsanon Y, Darnpornprasert P, Kerr S, Ungsedhapand C, Duncombe C, Ubolyam S, Ruxrungtham K, Phanuphak P. High prevalence of indinavir-associated renal complications in Thai HIV-infected patients. J Med Assoc Thai. 2006 Aug;89 Suppl 2:S21-7.

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: The HIV Netherlands Australia Thailand Research Collaboration
ClinicalTrials.gov Identifier: NCT00411983     History of Changes
Other Study ID Numbers: HIV-NAT 006
First Submitted: December 14, 2006
First Posted: December 15, 2006
Last Update Posted: February 24, 2017
Last Verified: February 2017

Keywords provided by The HIV Netherlands Australia Thailand Research Collaboration:
chronic HIV infection
long term cohort of HIV infection

Additional relevant MeSH terms:
HIV Infections
Acquired Immunodeficiency Syndrome
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
Slow Virus Diseases

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