The Evolving Landscape of HIV Prevention and Diagnosis

Transcription

1 The Evolving Landscape of HIV Prevention and Diagnosis Jenny R. McFarlane Texas Department of State Health Services HIV/STD/TB/Viral Hepatitis Unit

2 Is it okay if we just talk?

3 NHAS: A Call to ACT Reduce New HIV Infections Increase Access to Care and Improve Health Outcomes Reduce HIV-related Health Disparities and Health Inequities.

4 Newly Diagnosed HIV, PLWH, And Deaths TEXAS 6,000 82,745 People Living with HIV 80,000 5,000 4,486 70,000 New dx and Deaths 4,000 3,000 2,000 New Diagnoses 60,000 50,000 40,000 30,000 People Living with HIV 1,000 Deaths 1,324 20,000 10,

5 Texas HIV Treatment Cascade, , % 100% 70,000 60,000 77% 69% 80% 50,000 59% 60% 40,000 82,745 30,000 20,000 63,706 57,074 48,632 40% 20% 10,000 0 Individuals Living with HIV at end of 2015 At Least One Visit/Lab Retained In Care Achieved Viral Suppression 0%

6 The Bars!

7 Percentage of People Living with HIV and Percentage of HIV Transmissions at Each Stage of the Care Continuum, United States and Puerto Rico, Frieden TR et al. N Engl J Med 2015;373:

8 HIV Transmissions At Each Stage Of The Care Continuum Texas % 5% 5% 5% 9% 55% 6% 32% 30% 14% Texans with HIV Transmissions People with undx infec:ons Persons dx but not in care In care no ART On ARV but not suppressed Viral suppression

9 What does this have to do with Testing Technology? Diagnosis is the first step. Do I know how to test? Am I using the best technology to detect early infection? Why is it important to detect early?

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12 Serologic Assay Generations 1 st generation immunoassays (IA) Detects HIV antibody (Ab) IgG using viral lysates as the antigens (Ag) Western BLOT 1 st gen assay

13 2 nd Gen CLIA-Waived Point-of-Care Rapid HIV Tests Detects HIV IgG Antibody The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. Clearview Complete ChemBio Stat Pak OraQuick Advance

14 3rd Generation Detects HIV 1/2 IgG and IgM Antibodies Siemans ADVIA Centaur - LAB Ortho VITROS Sei/ECIQ - LAB Ortho GS 1/2 +O - LAB Time to results minutes Insti Unigold The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.

15 Antigen/Antibody Combo Detects HIV 1 p24 Antigen and HIV 1/2 IgG and IgM Antibodies The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.

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17 Bio Plex 2200 Detects HIV 1/2 antibodies and p24 Antigen Load and run if no detection Negative Detection - runs again and will isolate what it found. Will tell us HIV 1, HIV 2, p24 antigen The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.

18 If BioPlex Reactive what s Next?

19 HIV 1/2 Antibody Differentiation HIV 1/2 Geenius HIV 1/2 Multi Spot The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.

20 Nucleic Acid The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.

21 The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.

22 Determine Combo Rapid HIV 1/2 Ag-Ab Test Alere 4 th generation technology The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. Control Antigen Antibody The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.

23 Determine HIV 1/2 Ag/Ab Early Infection Plasma Ag not detected most Acutes (Laperche, Rosenberg, Kilembe, Duong, Conway, Faraoni) Detects infection earlier than IgM-sensitive assays, not as early as Ag/Ab assays (Masciotra, JCV) Detected 40 54% early infections (Delaney, Masciotra, Dx conference) Whole Blood 0% Ag sensitivity, Acutes (Lewis, AIDS)

24 NATs on the Horizon The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.

25 Acute Viral Infection Malaise/fatigue Fever/chills/night sweats Weight loss, loss of appetite Sore throat Nausea/vomiting/diarrhea Swollen lymph nodes Aching muscles or joints Rash Rarely headache, neurologic symptoms

26 Clinical Syndrome of Acute HIV 40% 90% develop symptoms of Acute HIV à 50% 90% w/ symptoms seek medical care Of those diagnosed with Acute HIV à 50% of patients were seen at least 3 times before diagnosis Kahn et al, NEJM 1998, Weintrob et al, Arch Int Med 2003

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28 Prediction of the efficiency of HIV transmission according to HIV burden in the genital tract. Cohen M S, and Pilcher C D J Infect Dis. 2005;191: by the Infectious Diseases Society of America

29 Acute HIV: Partner Notification Persons with acute HIV infection named 2.5 times as many sex partners 1.9 times as many partners newly diagnosed with HIV as did persons with new diagnosis of established HIV infection -Moore et al, JAIDS 2009

30 The Bars! Very T e s ti Linkage! Harm Reduction n g P ar t n e r T e s ti A R TA STI screen & tx Maintenance P r E P n g S P r E P

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32 Transitions and Change Benefits and Challenges Please Ponder How can this improve your services, the quality of care your patients receive and the overall health of your community?

33 Case Studies 17 yo male rapid test INSTI prelim + Referred to clinic for follow up testing No show No blood specimen to NAAT test 26 yo male screening Ag/Ab Combo + Geenius negative NAAT +, VL 260K copies. 30 yo pregnant woman 3 rd gen + Geenius Indeterminate NAAT +

34 Transition to Best Practices Current Test Technology Used Staff training Technology Specimen Collection Messaging/Counseling Administration Link to Care Public Health Follow up

35 Specimen Collection HIV-1/2 Ag/Ab Combo No more than 5 days cold. Gold top, :ger top, spin before submit. NO DRY BLOOD SPOT. Reac:ve samples run in duplicate. Geenius HIV 1/2 Differen:a:on Reflex from reac:ve Ag/Ab Combo. 25 minute average run :me. Read immediately once test completed.

36 Why does this matter? Early id of infection has individual and positive public health benefits Laboratory testing offers the best potential for early diagnosis No test is perfect limitations of tests are important to understand relay to the client. New technology available now and on the horizon will likely change the algorithm

37 Where do I fit in? Testing Education Promotion Referral AND Follow-up And Follow-up Support YOU MATTER!

38 Laboratory Testing for the Diagnosis of HIV Infection Updated Recommendations HIVtestingAlgorithmRecommendation- Final.pdf

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40 Resources To order materials from the DSHS Warehouse: Diagnostic-Testing-Algorithm.aspx option=com_content&task=view&id=774&itemid=92 S270.full.pdf+html

41 Acknowledgements Michelle Owen, Ph.D- CDC Bernard Branson, MD Ann Robbins, Ph.D DSHS Margaret Vaaler, Ph.D DSHS Shelley Lucas, MPH - DSHS Isabel Clark, MS DSHS

42 Jenny R. McFarlane Prevention Manager Texas DSHS HIV/STD/TB Viral Hepatitis Unit (512)