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Coping with Hope 2016 Medical Update
Derrick Butler MD,MPH Associate Medical Director To Help Everyone Health and Wellness Centers Assistant Professor Charles Drew University Los Angeles, CA
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Medical Update Big Picture Antiretroviral Treatment Prevention
Mental Health Review Epidemiology
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Coping with….
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Hope
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Mortality and HAART Over Time
90% Deaths per 100 Person-Years 8 7 6 5 4 3 2 1 80% 70% 60% 50% Patients on HAART 40% 30% 20% Objective Communicate the efficacy of HAART by examining its relationship to mortality over time Support In 1996, after the introduction of HAART, the rate of deaths from AIDS in the United States began to drop Transition We’ve seen what HAART does on a cumulative level; now let’s look at an example of how it might affect an individual’s disease progression 10% % of patients on HAART Deaths per 100 person-years 1996 1997 1998 1999 2000 2001 2002 2003 2004 Time Reference: Palella FJ Jr, Baker RK, Moorman AC, et al; and HIV Outpatient Study Investigators. Mortality in the highly active antiretroviral therapy era: changing causes of death and disease in the HIV outpatient study. J Acquir Immune Defic Syndr. 2006;43:27-34. 5 5 5
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Narrowing the Gap in Life Expectancy Between HIV-Positive and Uninfected Persons
Average Life Expectancy Remaining At Age 20 Years HIV positive 62 62 54 49 Life Expectancy (years) 36 Slide: Narrowing the Gap in Life Expectancy Between HIV-Positive and Uninfected Persons Marcus and colleagues conducted a cohort study of HIV-infected adults who were members of Kaiser Permanente California during and HIV-uninfected members matched 10:1 on age, gender, medical center, and year. Deaths were comprehensively ascertained through 2011 from the electronic health record, California death certificates, and Social Security Administration datasets. Abridged life tables were used to estimate the average number of years of life remaining at age 20 years (“life expectancy at age 20”) in HIV-infected and HIV-uninfected individuals in and For the recent era, we estimated life expectancy at age 20 years by demographics and HIV risk group.1 Overall, life expectancy remaining after an HIV diagnosis at age 20 years increased from 36 to 49 years from to HIV-infected patients who had the largest gains in life expectancy were those who initiated ART with CD4 >500 cells/mm3.1 Reference Marcus JL, Chao C, Leyden W, et al. Narrowing the gap in life expectancy for HIV+ compared with HIV- individuals. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 54. Overall HIV Negative Overall CD4 >500* HIV Negative *CD4 (cells/mm3) at time of starting ART. Kaiser Permanente Northern California (1996 to 2011): HIV-positive (n=25,768) and matched non-HIV-infected adults (n=257,600). Males (91%) and MSM (75%). Marcus JL, et al. 23rd CROI. Boston, Abstract 54.
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KP: Factors Contributing to Reduced Life Expectancy With HIV (2008-11)
Expected Yrs of Life Remaining at Age 20 Yrs HIV Infected and Began ART With CD4+ ≥ 500 cells/mm3 HIV Uninfected Difference (95% CI) Overall 54.5 62.3 7.9 ( ) No HBV or HCV 55.4 62.6 7.2 ( ) No drug or alcohol abuse 57.2 63.8 6.6 ( ) No smoking 58.9 64.3 5.4 ( ) None of the above 59.2 65.0 5.7 ( ) ART, antiretroviral therapy; HBV, hepatitis B virus; HCV, hepatitis C virus; KP, Kaiser Permanente. The next slide looks at life expectancy at age 20 for people who began ART with CD4+ cell counts > 500. If you get rid of factors, like if there's no HBV or HCV, then life expectancy is a little longer. Then if you get rid of drug and alcohol abuse, it's a little bit longer, and if you don’t smoke it’s even longer. And if you have none of the above, although it doesn't quite reach the same as HIV-uninfected people, it does get quite a bit closer, arguing for healthy lifestyle and starting therapy earlier. Slide credit: clinicaloptions.com Marcus JL, et al. CROI Abstract 54. Reproduced with permission.
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Antiretroviral Treatment
DHHS Guidelines New Safer Regimens-TAF Investigational Agents
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START: Immediate vs Deferred Therapy for Asymptomatic, ART-Naive Pts
International, randomized phase IV study involving 215 sites in 35 countries Serious AIDS and Non-AIDS Events, n Treatment-naive pts with CD4+ count > 500 cells/mm³ (N = 4685) Immediate ART (n = 2326) 42 Delayed ART (until CD4+ ≤ 350 cells/mm³) (n = 2359) 96 Study stopped by DSMB following results of interim analysis Overall HR: 0.43 (P < .001) HR for serious AIDS-related events: 0.28 (P < .001) HR for non-AIDS–related events: 0.61 (P = .04) Similar HIV-1 RNA suppression rates 12 mos after starting ART in both arms (immediate: 98%; delayed: 97%) ART, antiretroviral therapy; DSMB, data and safety monitoring board. Slide credit: clinicaloptions.com Lundgren JD, et al. N Engl J Med. 2015;373:
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DHHS GUIDELINES
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DHHS Treatment Guidelines
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New DHHS Recommendations
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Reducing Toxicity, increasing Long Term Safety
tenofovir alafenamide (TAF) New pro drug of Tenofovir Co– formulated in multiple combination tablets Multiple analyses vs. pro-drug Tenofovir Disoproxil Fumarate (TDF)
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No HBV or HCV coinfection
Study 1089: Switch to F/TAF From F/TDF-Based Regimen in Virologically Suppressed Patients Phase 3 (Double-Blind, Double-Dummy) TDF-based regimen* HIV RNA <50 copies/mL eGFR >50 mL/min No HBV or HCV coinfection Randomization 1:1 Switch to F/TAF qd + Continue 3rd Agent (n=333) F/TDF qd + Continue 3rd Agent (n=330) Week 48 Primary Endpoint HIV RNA <50 copies/mL Slide: Study 1089: Switch to F/TAF From F/TDF-Based Regimen in Virologically Suppressed Patients Gallant and colleagues conducted a 96-week randomized, double-blind, phase 3 study in virologically suppressed HIV-1 infected patients receiving emtricitabine/tenofovir DF (F/TDF)-containing ART to evaluate the efficacy and safety of switching from F/TDF to emtricitabine/tenofovir AF (F/TAF) versus continuing F/TDF while remaining on the same third agent.1 The primary endpoint was virologic success at week 48 by ITT FDA snapshot algorithm with a pre-specified noninferiority margin of 10%.1 Reference Gallant JE, Daar E, Raffi F, et al. Switching tenofovir DF to tenofovir alafenamide in virologically suppressed adults. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 29. *Includes boosted PI or unboosted 3rd agents. F: emtricitabine; TAF: emtricitabine/tenofovir alafenamide; TDF: tenofovir DF. Dose of F/TAF: with boosted PIs (200/10 mg), unboosted 3rd agent (200/25 mg). Non-inferiority margin: 10% (based on week 48 FDA snapshot analysis of percentage of patients with HIV RNA <50 copies/mL). Baseline characteristics: Median age: 48 years. Male: 85%. Black race/ethnicity: 21%. Median CD4 count: cells/mm3. Median eGFR: mL/min. Boosted PI: 46%. Unboosted 3rd agent: 54%. Gallant JE, et al. 23rd CROI. Boston, Abstract 29.
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Virologic Outcomes (Week 48) Treatment Difference:
Study 1089: Switch to F/TAF From F/TDF-Based Regimen in Virologically Suppressed Patients HIV RNA <50 copies/mL at week 48 Switching to F/TAF met non-inferiority criteria versus F/TDF Similar results regardless of 3rd agent in regimen, age (<50 and >50 years of age), sex, and race (black and non- black) Safety following switch to F/TAF Similar rates of discontinuations due to adverse events (1%-2%) Significant and rapid improvements compared with F/TDF in Proteinuria and tubular proteinuria (P<0.001) Median change in eGFR (+8.4 versus mL/min; P<0.001) Virologic Outcomes (Week 48) Treatment Difference: 1.3% (-2.5, 5.1) 94% 93% F/TAF (n=333) F/TDF (n=330) Slide: Study 1089: Switch to F/TAF From F/TDF-Based Regimen in Virologically Suppressed Patients At week 48, switching to F/TAF met non-inferiority criteria versus F/TDF with regard to achieving HIV RNA <50 copies/mL. Similar results were seen regardless of 3rd agent in regimen, age (< and >50 years of age), sex, and race (black and non-black).1 Switch to F/TAF was generally well tolerated with similar rates of discontinuations due to adverse events compared with the F/TDF arm (1%-2%). In the F/TAF switch arm, there was a significant and rapid improvement compared with F/TDF in proteinuria and tubular proteinuria (P<0.001) as well as median change in eGFR (+8.4 versus +2.8 mL/min; P<0.001).1 Reference Gallant JE, Daar E, Raffi F, et al. Switching tenofovir DF to tenofovir alafenamide in virologically suppressed adults. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 29. Patients (%) 5.4% 5.5% 0.3% 1.5% HIV RNA <50 Copies/mL Failure No Data All patients also received either a boosted PI or an unboosted 3rd agent. Gallant JE, et al. 23rd CROI. Boston, Abstract 29.
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GS-1089: Renal Outcomes With Switch From TDF- to TAF-Containing ART
No proximal renal tubulopathy or Fanconi syndrome in either arm TAF TDF TAF TDF Urine Protein-to-Creatinine Ratio 40 20 Protein Albumin RBP β2-M P < .001 22.0 18.2 20 8.4 12.3 10 7.7 Median eGFR Change (mL/min) Median % Change at Wk 48 β2-M, β2-microglobulin; eGFR, estimated glomerular filtration rate; RBP, retinol-binding protein; TAF, tenofovir alafenamide; TDF, tenofovir disoproxil. And then, this is the renal outcomes. You can see, with TAF, these patients actually had a significant but modest increase in eGFR vs continuing on TDF. This is not percent change but actual change in mLs per minute of 8.4 vs 2.8. And then, if you look at the urine protein excretion, you can see, with TAF, there's improvement in proteinuria, albuminuria, and retinal binding protein and β2-microglobulin that are specifically absorbed by the proximal tubule, while on tenofovir there's a continued increase in the proteinuria. 2.8 -7.7 -20 -14.6 -16.3 P < .001 P < .001 P < .001 -10 -40 12 24 36 48 -39.6 P < .001 Wk Slide credit: clinicaloptions.com Gallant JE, et al. CROI Abstract 29. Reproduced with permission.
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Study 1089: Changes in Spine and Hip BMD Following Switch to F/TAF in Virologically Suppressed Patients Spine BMD Hip BMD F/TAF (n=321) F/TDF (n=320) F/TAF (n=321) F/TDF (n=317) 1.5 1.1 P<0.001 P<0.001 Mean Change (%) Mean Change (%) -0.2 Slide: Study 1089: Changes in Spine and Hip BMD Following Switch to F/TAF in Virologically Suppressed Patients Bone mineral density increased in the F/TAF group but declined in the F/TDF group:1 Spine: 1.5% versus -0.2% (P<0.001). Hip: 1.1% versus -0.2% (P<0.001). Reference Gallant JE, Daar E, Raffi F, et al. Switching tenofovir DF to tenofovir alafenamide in virologically suppressed adults. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 29. -0.2 Treatment Week Treatment Week All patients also received either a boosted PI or an unboosted 3rd agent. Gallant JE, et al. 23rd CROI. Boston, Abstract 29.
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Study 112: Switch to E/C/F/TAF in Patients With Renal Impairment
Phase 3 study (144 weeks) Treatment-experienced Open-label HIV RNA <50 copies/mL eGFR mL/min Switch to E/C/F/TAF (n=242) Primary Endpoint Week 24 Change From Baseline in eGFR Week 96 Analysis E/C/F/TAF: elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide. TAF 10 mg. Pre-switch ART regimens: NRTI: tenofovir DF (65%), abacavir (22%), other (7%), none (5%). Third agent (some regimens included >1 third agent): PI (44%), NNRTI (42%), INSTI (24%), CCR5 antagonist (3%). Baseline characteristics (GFR:<50/>50 mL/min): Median age: 59/58 years. Hypertension: 50%/34%. Diabetes: 15%/13%. Median CD4: 622/635 cells/mm3. Median eGFR: 43/60 mL/min. Dipstick proteinuria grade: 1+: 29%/20% 2+-3+: 15%/7%. 4+: none. Slide: Study 112: Switch to E/C/F/TAF in Patients With Renal Impairment Post and colleagues evaluated the safety and efficacy of a once-daily single tablet regimen of elvitegravir/cobicistat/emtricitabine/TAF in HIV-infected patients with mild to moderate renal impairment. Virologically suppressed adults with stable renal impairment (eGFR mL/min) had their treatment switched from both TDF- and non-TDF-containing regimens to open-label elvitegravir/cobicistat/emtricitabine/TAF.1,2 The primary endpoint was the week 24 change in eGFR.1,2 References Pozniak A, Arribas JR, Gathe J, et al. Switching to tenofovir alafenamide, coformulated with elvitegravir, cobicistat, and emtricitabine, in HIV-infected patients with renal impairment: 48 week results from a single-arm, multi-center, open-label, Phase 3 study. J Acquir Immune Defic Syndr. 2015;Nov 30. [Epub ahead of print]. Post FA, Tebas P, Clarke A, et al. Longer-term safety of tenofovir alafenamide in renal impairment. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 680. Pozniak A, et al. JAIDS. 2015;Nov 30. [Epub ahead of print]. Post FA, et al. 23rd CROI. Boston, Abstract 680.
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Median Change in eGFR (CKD-EPI Cr) Median Change in eGFR (mL/min)
Study 112: Week 96 Changes After Switch to E/C/F/TAF in Patients With Renal Impairment Median eGFR change after E/C/F/TAF switch CKD-EPI Cr: 1.0 mL/min (n=158) CKD-EPI CysC: 3.9 mL/min (n=157) Significant improvements after E/C/F/TAF switch (P<0.05) Proteinuria Renal tubular function Spine and hip bone mineral density Maintained HIV RNA <50 copies/mL: 88% Virologic failure: 2% (5/242) No virologic data: 10% (23/242) These 96-week data support the renal and bone safety of E/C/F/TAF in HIV patients with renal impairment (eGFR mL/min) Median Change in eGFR (CKD-EPI Cr) Baseline eGFR (mL/min) >60 (n=76) (n=24) 51-60 (n=78) <30 (n=10) 41-50 (n=54) Median Change in eGFR (mL/min) Slide: Study 112: Week 96 Changes After Switch to E/C/F/TAF in Patients With Renal Impairment At week 96, switching to E/C/F/TAF maintained viral suppression and was associated with stable eGFR and significant improvements in proteinuria, renal tubular function, and spine and hip BMD.1 Reference Post FA, Tebas P, Clarke A, et al. Longer-term safety of tenofovir alafenamide in renal impairment. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 680. Week Post FA, et al. 23rd CROI. Boston, Abstract 680.
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Studies 104 and 111: Post-Hoc Analysis E/C/F/TAF in Patients at High Risk for Chronic Kidney Disease
Randomization 1:1 E/C/F/TAF qd CKD Risk: High (n=246); Low (n=620) Phase 3 (2 trials combined) Treatment-naive HIV RNA >1000 copies/mL eGFR >50 mL/min No HBV or HCV coinfection E/C/F/TDF qd CKD Risk: High (n=274); Low (n=593) Week E/C/F: elvitegravir/cobicistat/emtricitabine. TAF: tenofovir alafenamide 10 mg; TDF: tenofovir DF 300 mg. High risk of CKD (>2 risk factors). Low risk of CKD (<1 risk factor). Baseline risk factors: Black race: 25%-26%. Female sex: 15%. Any NSAID use: 16%-17%. Hypertension: 14%-17%. CD4 <200 cells/mm3: 13%-14%. Hyperlipidemia: 11%-12%. Age >50 years: 10%-13%. Diabetes: 3%-5%. Slide: Studies 104 and 111: Post-Hoc Analysis E/C/F/TAF in Patients at High-Risk for Chronic Kidney Disease Studies 104 and 111 are 2 phase 3 studies of identical design comparing 2 single-tablet regimens, elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF) and E/C/F/tenofovir DF (E/C/F/TDF), in treatment-naïve HIV-positive adults. Patients were randomized 1:1 to receive a single-tablet regimen of E/C/F/TAF or E/C/F/TDF once daily.1,2 The primary endpoint was week 48 virologic response by FDA snapshot algorithm in a pre-specified analysis of the combined studies.1,2 References Sax PE, Saag MS, Yin MT, et al. Tenofovir alafenamide versus tenofovir disoproxil fumarate, coformulated with elvitegravir, cobicistat, and emtricitabine, for initial treatment of HIV-1 infection: two randomised, double-blind, phase 3, non-inferiority trials. Lancet. 2015;385: Wohl D, Thalme A, Finlayson R, et al. Renal safety of tenofovir alafenamide in patients at high risk of kidney disease. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 681. Sax PE, et al. Lancet. 2015;385: Wohl D, et al. 23rd CROI. Boston, Abstract 681.
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Studies 104 and 111: Long-Term Renal Safety of E/C/F/TAF
TAF versus TDF Significantly smaller decreases in eGFR (P<0.001) Significantly less proteinuria, albuminuria, and tubular proteinuria (P<0.001) Acute kidney injury (>50% decline in eGFR) TAF versus TDF: 0.3% versus 1.3% (P=0.06) No cases of tubulopathy/Fanconi syndrome in either arm Fewer discontinuations due to renal adverse events in the TAF arm TAF versus TDF: 0 (0%) versus 6 (0.7%) Week 96 Change in eGFR -2.0 P<0.001 Median Change (mL/min) Slide: Studies 104 and 111: Long-Term Renal Safety of E/C/F/TAF Rijnders and colleagues used data from studies 104 and 111 to assess renal biomarkers of renal function and clinically significant renal events among patients receiving E/C/F/TAF and E/C/F/TDF. There was a significantly smaller decrease from baseline at week 96 in eGFR in the TAF arm compared with the TDF arm (P<0.001). In addition, the TAF arm had significantly less proteinuria, albuminuria, and tubular proteinuria (P<0.001).1 There were no cases of tubulopathy/Fanconi syndrome in either arm. There were no discontinuations due to renal adverse events in the TAF arm compared with 0.7% (6 cases) in the TDF arm.1 Reference Rijnders BJ, Post FA, Rieger A, et al. Longer-term renal safety of tenofovir alafenamide vs tenofovir disoproxil fumarate. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 682. -7.5 E/C/F/TAF (n=866) E/C/F/TDF (n=867) E/C/F: elvitegravir/cobicistat/emtricitabine. TAF: tenofovir alafenamide; TDF: tenofovir DF. Rijnders BJ, et al. 23rd CROI. Boston, Abstract 682.
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The new pro drug Tenofovir Alafenamide (TAF) is less toxic to :
The liver The brain The bones The kidneys Both c and d All of the above
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Investigational Therapies
New Antiretrovirals Doravirine Cabotegravir
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Doravirine NNRTI Potent Activity
Active against common NNRTI Resistance mutations Once daily Dosing No interaction with PPI Less CNS effects than efavirenz
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MK-1439-007: Doravirine + TDF/FTC vs EFV + TDF/FTC In Treatment-Naive Pts
Doravirine: investigational NNRTI with potent activity against common NNRTI resistance mutations, QD dosing, no PPI drug–drug interactions, improved CNS safety vs EFV in early studies Part 2 of 2-part randomized, double-blind phase II study Primary endpoint: HIV-1 RNA < 40 copies/mL at Wk 48 Wk 48 Wk 96 ART-naive HIV-infected pts with HIV-1 RNA ≥ 1000 copies/mL, CD4+ cell count ≥ 100 cells/mm3 (N = 132)* Doravirine 100 mg QD + TDF/FTC (n = 66) ART, antiretroviral therapy; CNS, central nervous system; EFV, efavirenz; FTC, emtricitabine; TDF, tenofovir disoproxil; PPI, proton pump inhibitor; QD, once daily. This the phase IIb study of doravirine with TDF/FTC. This is a look at the dose that has gone forward in the phase III trials—so doravirine 100 mg with TDF/FTC compared to efavirenz 600 mg with TDF/FTC. And it's a double-blind, randomized phase II trial. The thing that's a little tricky on this slide is n = 66 in both arms, but in part 1 of the study, there were also 42 and 43 patients that had received doravirine at the 100-mg dose and efavirenz at the 600 mg (ie, the standard efavirenz dose), respectively, which will get included in the analysis. Efavirenz 600 mg QD + TDF/FTC (n = 66) *42 pts receiving doravirine 100 mg QD + TDF/FTC and 43 pts receiving efavirenz 600 mg QD + TDF/FTC in part 1 of this study were included in this analysis. Slide credit: clinicaloptions.com Gatell JM, et al. CROI Abstract 470.
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HIV RNA <40 Copies/mL (Week 48) Baseline HIV RNA (copies/mL)
Study 007 (Parts 1 and 2 Combined): Doravirine Versus Efavirenz in ART-Naïve Patients Phase 2b study (n=216) HIV RNA >1000 copies/mL CD4 >100 cells/mm3 Randomized arms Doravirine 100 mg or efavirenz 600 mg + FTC/TDF Non-success at week 48 Doravirine arm (n=18) Efavirenz arm (n=14) Discontinuations due to adverse events Doravirine arm: 3% Efavirenz arm: 6% HIV RNA <40 Copies/mL (Week 48) Doravirine Efavirenz 87% 87% 84% 78% 79% 74% Slide: Study 007 (Parts 1 and 2 Combined): Doravirine Versus Efavirenz in ART-Naïve Patients Gatell and colleagues reported the week 48 efficacy and safety results from Study 007 for all patients who received doravirine 100 mg or efavirenz in part 1 (n=42 per group) and part 2 (n=66 per group) combined.1 Part 1 (dose selection): doravirine 25, 50, 100, and 200 mg. Part 2 enrolled additional patients to receive doravirine 100 mg. Doravirine 100 mg qd demonstrated antiretroviral activity and immunological effect similar to efavirenz (each with emtricitabine/tenofovir DF) and was generally safe and well tolerated during 48 weeks in treatment-naïve patients. There were significantly less discontinuations due to adverse events in the doravirine arm compared with the efavirenz arm.1 Reference Gatell J-M, Raffi F, Plettenberg A, et al. Doravirine 100mg QD vs efavirenz +TDF/FTC in ART-naive HIV+ patients: week 48 results. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 470. Patients (%) Overall (NC=F) <100K (OF) >100K (OF) Baseline HIV RNA (copies/mL) NC=F: non-completer=failure; OF: observed failure. Gatell J-M, et al. 23rd CROI. Boston, Abstract 470.
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MK-1439-007: Clinical Adverse Events
Clinical AEs, % DOR + TDF/FTC (n = 108) EFV + TDF/FTC Difference, DOR–EFV (95% CI) ≥ 1 AE 87.0 88.9 -1.9 (-10.9 to 7.1) Serious AEs 6.5 8.3 -1.9 (-9.5 to 5.6) Death D/c for AEs 2.8 5.6 -2.8 (-9.2 to 3.0) Drug-related AEs* 31.5 56.5 -25.0 (-37.3 to 11.8) Diarrhea 0.9 Nausea 7.4 Dizziness 25.9 Headache Abnormal dreams 14.8 Insomnia Nightmares Sleep disorder 4.6 AE, adverse event; D/c, discontinuation; DOR, doravirine; EFV, efavirenz; FTC, emtricitabine; TDF, tenofovir disoproxil. The next slide looks at adverse events for doravirine vs efavirenz, both with TDF/FTC. Not surprisingly, there are more drug-related adverse events with efavirenz. Interestingly, there was less diarrhea with doravirine. Diarrhea is not a side effect I think about from efavirenz, but the data are there for you to look at. And then, in a separate in vitro analysis, they looked at doravirine in vitro activity against a variety of NNRTI-containing viruses and showed that doravirine was very active against 103N, 181C, and viruses with both mutations. And then, they did a selection experiment, and again for those 3 variants, which are the most common transmitted variants, you didn't see any breakthrough in a serial passage study, whereas, if you use rilpivirine or efavirenz at clinically relevant concentrations, obviously you saw evolution of further resistance. *Specific AEs occurring in ≥ 5% of pts included. Slide credit: clinicaloptions.com Gatell JM, et al. CROI Abstract 470. Reproduced with permission.
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Cabotegravir Integrase Inhibitor Potent Activity Oral preparation
Nanosuspension (long acting) IM Preparation Does not require boosting Side effects: injection site reaction and headache
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LATTE-2: Cabotegravir + Rilpivirine as Long-Term Maintenance Therapy
Maintenance Phase Cabotegravir 400 mg + Rilpivirine 600 mg IM every 4 weeks (n=115) Phase 2a Open-label >18 years of age ART-naïve CD4 >200 cells/mm3 Creatinine clearance >50 mL/min No HBV, ALT >5x ULN Induction Phase Cabotegravir 30 mg + ABC/3TC for 20 Weeks (n=309) Cabotegravir 600 mg + Rilpivirine 900 mg IM every 8 weeks (n=115) Oral Cabotegravir 30 mg + ABC/3TC qd (n=56) Slide: LATTE-2: Cabotegravir + Rilpivirine as Long-Term Maintenance Therapy LATTE-2 was a phase 2a, open-label dose-ranging study of cabotegravir LA as maintenance therapy in virologically suppressed patients.1 Induction phase: patients received oral cabotegravir 30 mg + abacavir/lamivudine for 20 weeks. Maintenance phase: virologically suppressed patients were randomized to either cabotegravir 400 mg + rilpivirine 600 mg IM every 4 weeks, cabotegravir 600 mg + rilpivirine 900 mg IM every 8 weeks, or continue with oral therapy (cabotegravir 30 mg + abacavir/lamivudine). The primary endpoint was HIV RNA <50 copies/mL at week 32 of the maintenance phase.1 Reference Margolis DA, González-García J, Stellbrink H-J, et al. Cabotegravir+rilpivirine as long-acting maintenance therapy: LATTE-2 week 32 results. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 31LB. Week Primary Endpoint HIV RNA <50 copies/mL Cabotegravir: INSTI. Baseline characteristics: Median age: 35 years. Male: 92%. Black race/ethnicity: 15%. CDC class C: 1%. Median HIV RNA: 4.4 log10 copies/mL. HIV RNA >100K copies/mL: 18%. Median CD4: 489 cells/mm3. Margolis DA, et al. 23rd CROI. Boston, Abstract 31LB.
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LATTE-2: Cabotegravir + Rilpivirine as Long-Term Maintenance Therapy
Week 32 Maintenance Therapy 94%* 95%* 91% Oral cabotegravir + ABC/3TC daily (n=56) Cabotegravir IM + IM rilpivirine Every 4 weeks (n=115) Every 8 weeks (n=115) HIV RNA <50 Copies/mL Slide: LATTE-2: Cabotegravir + Rilpivirine as Long-Term Maintenance Therapy Cabotegravir LA maintenance therapy at both dosage arms met non-inferiority criteria to oral cabotegravir with regard to achieving HIV RNA <50 copies/mL.1 Reference Margolis DA, González-García J, Stellbrink H-J, et al. Cabotegravir+rilpivirine as long-acting maintenance therapy: LATTE-2 week 32 results. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 31LB. 4% 5% 5% 4% <1% <1% Success Failure No Data *Met non-inferiority criteria (treatment difference with oral): Every 4 weeks: +2.8 (-5.8, 11.5); every 8 weeks: +3.2 (-4.8, 12.2). Margolis DA, et al. 23rd CROI. Boston, Abstract 31LB.
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Cabotegravir IM + Rilpivirine IM
LATTE-2: Protocol-Defined Virologic Failure With Cabotegravir + Rilpivirine as Long-Term Maintenance Therapy Cabotegravir IM + Rilpivirine IM Every 4 Weeks (n=115) 8 Weeks Oral Cabotegravir + 3TC/ABC (n=56) Protocol-defined virologic failure (%) 1 2 INI mutations (%) NRTI mutations (%) NNRTI mutations (%) Slide: LATTE-2: Protocol-Defined Virologic Failure With Cabotegravir + Rilpivirine as Long-Term Maintenance Therapy No emergent resistant mutations were detected among patients who met the criteria for virologic failure and had available genotype data.1 Reference Margolis DA, González-García J, Stellbrink H-J, et al. Cabotegravir+rilpivirine as long-acting maintenance therapy: LATTE-2 week 32 results. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 31LB. Protocol-defined virologic failure: <1.0 log10 copies/mL decrease in plasma HIV RNA by week 4 or confirmed HIV RNA >200 copies/mL after prior suppression to <200 copies/mL or >0.5 log10 copies/mL increase from nadir HIV RNA >200 copies/mL. Margolis DA, et al. 23rd CROI. Boston, Abstract 31LB.
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How satisfied are you with your current treatment?
LATTE-2: Wk 32 Pt Satisfaction With Maintenance Therapy vs Oral Induction How satisfied are you with your current treatment? How satisfied would you be to continue with your present form of treatment? More Neutral Less More Neutral Less 3 1 2 1 100 100 3 1 80 29 80 29 60 60 Pts (%) 40 40 CAB, cabotegravir; Q4W, every 4 weeks; Q8W, every 8 weeks. Finally, this is looking at patient satisfaction in the LATTE-2 study. How satisfied are you with your current treatment? You can see that patients were actually quite satisfied. And how happy were they to continue? And again, almost all patients were happy to continue. Again, this is a questionnaire outcome. 20 20 97 96 71 98 98 71 Q8W (n = 106) Q4W (n = 100) Oral CAB (n = 49) Q8W (n = 106) Q4W (n = 100) Oral CAB (n = 49) Margolis DA, et al. CROI Abstract 31LB. Reproduced with permission. Slide credit: clinicaloptions.com
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Approximately what percentage of your pts do you think would be interested in long-acting injectable therapy administered every 8 wks? < 5% 10% 25% 50% 75%
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Coping with Hope Prevention PrEP Real Experience PreP Safety
Investigational Agents
35
Boston Community Based Health Center: PrEP Experience
Fenway Health: largest primary care center for MSM in Massachusetts Account for 14.2% of newly diagnosed HIV cases in Massachusetts in 2014 In 2014 Start new ART (n=121) Start PrEP (n=537) PrEP at Fenway Health ( ) HIV seroconversion: <1% (5/664) Recent bacterial STI: 36% 80% of gonorrhea and chlamydia infections at Fenway Health in HIV- negative MSM on PrEP Highlights the need for ongoing STI screening Number of New PrEP Starts at Fenway Health, Boston 960 537 Slide: Boston Community Based Health Center: PrEP Experience Fenway Community Health is the largest primary care center for MSM in Massachusetts and cared for 14.2% of newly diagnosed HIV cases in Massachusetts in In 2014, there were 121 and 537 new ART and PrEP starts, respectively.1 From 2011 to 2015, the rate of HIV seroconversions among PrEP patients was <1% (5/664). Recent bacterial STIs were diagnosed in 36% of patients, with 80% of gonorrhea and chlamydia infections at Fenway Health in HIV-negative MSM on PrEP.1 These data highlight the need for ongoing STI screening among PrEP patients.1 Reference Mayer KH, Levine K, Maloney KM, et al. Increasing HIV Suppression, PrEP use, and STDs in Boston MSM accessing primary care. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 890. Number of New PrEP Starts 102 20 5 2011 2012 2013 2014 2015 Mayer KH, et al. 23rd CROI. Boston, Abstract 890.
36
Cohort Characteristics
Kaiser Permanente-Northern California: Adherence and Discontinuation of PrEP Cohort of plan members initiating PrEP (n=972, ) Data sources: electronic health records, HIV registry, US census Follow-up: 850 person-years Mean 0.9 years/person Outcomes Adherence (pharmacy refill) Low adherence (<60%, consistent with fewer than 4 of 7 doses/week) Discontinuation >120 days without emtricitabine/tenofovir DF HIV seroconversion Cohort Characteristics Participants (n=972) Age (years) 36 Race/ethnicity (%) White/black/Hispanic/Asian 70/4/12/10 Male (%) 98 Any STI/rectal STI, prior 2 years (%) 33/12 Smoker (%) 23 Baseline eGFR <80 mL/min (%) 15 Drug/alcohol abuse (%) 6 Hypertension (%) 11 Diabetes (%) 3 Median PrEP copay/month (USD) Household income (USD) 77 Slide: Kaiser Permanente-Northern California: Adherence and Discontinuation of PrEP Marcus and colleagues assessed adherence and discontinuation of PrEP use in a cohort study of Kaiser Permanente Northern California members initiating PrEP between July 2012 and December Follow-up was defined as days from PrEP initiation until earliest time of discontinuation, health plan disenrollment, HIV seroconversion, death, or June 30, Data sources included electronic health records, HIV registry, and US census data.1 Outcomes included adherence based on pharmacy refill with low adherence defined as <60%, consistent with fewer than 4 of 7 doses/week. Discontinuation of PrEP was defined as >120 days without emtricitabine/tenofovir DF. HIV seroconversion was also assessed.1 Reference Marcus JL, Hurley LB, Hare B, et al. HIV Preexposure prophylaxis: adherence and discontinuation in clinical practice. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 894. Follow-up: from first PrEP until the earliest of PrEP discontinuation, health plan disenrollment, HIV seroconversion, death, or end of study. Marcus JL, et al. 23rd CROI. Boston, Abstract 894.
37
Significant Factors Associated With PrEP Adherence and Discontinuation
Kaiser Permanente-Northern California: Adherence and Discontinuation of PrEP High adherence: 97% HIV seroconversion On PrEP: 0% (0/753) Discontinued PrEP: 0.9% (2/219) 1 black and 1 Hispanic man (both <30 years of age) Critical need for strategies to support continuation of PrEP throughout periods of HIV risk Significant Factors Associated With PrEP Adherence and Discontinuation P Value Adherence <60%* Younger age Black/Hispanic ethnicity Smoking 0.005 0.007 0.009 Discontinuation of PrEP Women Drug/alcohol abuse Copay >$50/month <0.001 0.045 Slide: Kaiser Permanente-Northern California: Adherence and Discontinuation of PrEP Adherence was very high, which is consistent with the lack of HIV seroconversions among those who continued to use PrEP.1 Younger age, black or Hispanic race/ethnicity, and smoking were associated with <60% adherence, while women, individuals with drug/alcohol abuse, and individuals with higher copays for PrEP were more likely to discontinue.1 Given 2 seroconversions after PrEP discontinuation, there is a critical need for strategies to support continuation of PrEP throughout periods of HIV risk.1 Reference Marcus JL, Hurley LB, Hare B. et al. HIV Preexposure prophylaxis: adherence and discontinuation in clinical practice. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 894. *Rare outcome of low adherence (3%) precluded multivariate analysis. Marcus JL, et al. 23rd CROI. Boston, Abstract 894.
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iPrEx DXA Substudy: Recovery of BMD After Stopping PrEP
7 study sites in 5 cities (Cape Town, Chiang Mai, Lima, Rio de Janeiro, San Francisco) DXA of hip and spine Every 24 weeks during iPrEx Week 24 after stopping PrEP At OLE enrollment Exposure to PrEP (retained cohort): 1.5 years Baseline Characteristics (Retained Through OLE Enrollment) Patients (n=289) Mean age (years) 26 Transgender (%) 12 Smoker (%) 46 Drink alcohol (%) 82 Height (cm) 170 Weight (kg) 66 Z-score Hip Spine -0.19 -0.66 Slide: iPrEx DXA Substudy: Recovery of BMD After Stopping PrEP Grant and colleagues conducted a DXA substudy of BMD in consecutively enrolled iPrEx trial participants.1 7 study sites in 5 cities (Cape Town, Chiang Mai, Lima, Rio de Janeiro, San Francisco). DXA of hip and spine were performed every 24 weeks during iPrEx, at week 24 after stopping PrEP, and at enrollment into the open-label extension study for iPrEx.1 Overall exposure to PrEP (retained cohort) was 1.5 years.1 Reference Grant R, Mulligan K, McMahan V, et al. Recovery of bone mineral density after stopping oral HIV preexposure prophylaxis. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 48LB. OLE: open-label extension. Baseline at start of iPrEx. Z-score: comparing BMD with healthy individuals matched by age, gender, and race. Grant R, et al. 23rd CROI. Boston, Abstract 48LB.
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iPrEx DXA Substudy: Recovery of BMD After Stopping PrEP
Hip BMD Spine BMD Placebo TFV-DP concentration at week 24 >16 fmol/M <16 fmol/M Placebo TFV-DP concentration at week 24 >16 fmol/M <16 fmol/M Change in BMD (%) Change in BMD (%) Slide: iPrEx DXA Substudy: Recovery of BMD After Stopping PrEP Among participants with protective PrEP drug concentrations at week 24, average BMD in the spine and hip increased after PrEP was stopped.1 Reference Grant R, Mulligan K, McMahan V, et al. Recovery of bone mineral density after stopping oral HIV preexposure prophylaxis. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 48LB. * * * *P<0.001 *P<0.001 * Week 24 Stop PrEP Week 24 After Stop OLE Entry Week 24 Stop PrEP Week 24 After Stop OLE Entry Average annualized recovery after stopping PrEP: 1.13% (P=0.002 versus placebo) Average annualized recovery after stopping PrEP: 1.81% (P=0.01 versus placebo) <25 years of age: full recovery of hip and spine BMD within 24 weeks of stopping PrEP. >25 years of age: full recovery of spine BMD within 24 weeks of stopping PrEP; hip BMD recovered by OLE entry. Grant R, et al. 23rd CROI. Boston, Abstract 48LB.
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Hair Drug Levels and eGFR Quartile of Hair Drug Concentrations
iPrEx OLE (Baseline eGFR <90 mL/min): Probability of eGFR Decreasing to <70 mL/min Within a Year Odds ratio of decreasing to <70 mL/min if hair drug levels in 4th quartile Tenofovir DF: 4.4 (P=0.45) Emtricitabine: 4.5 (P=0.027) Probability of decreasing to <70 mL/min if hair drug levels in 3rd or 4th quartiles <40 years of age: <4% 40-50 years of age: 19% to 21% >50 years of age: 23% to 24% Potential implications for patients starting PrEP Monitor renal function if >40 years of age and a baseline eGFR <90 mL/min Hair Drug Levels and eGFR Years of age <40 40-49 >50 ~7 doses/week ~4 doses/week 24% 23% Probability of eGFR Falling <70 mL/min 21% ~2 doses/week 19% Slide: iPrEx OLE (Baseline eGFR <90 mL/min): Probability of eGFR Decreasing to <70 mL/min Within a Year Clinically significant reductions in eGFR below 70 mL/min were uncommon. When it did occur, it was more common if hair drug levels were in the 4th quartile (tenofovir DF: OR 4.4; P=0.45 and emtricitabine: OR 4.5; P=0.027).1 These data suggest that careful monitoring of renal function may be helpful for patients >40 years of age and with a pre-PrEP eGFR <90 mL/min.1 Reference Gandhi M, Glidden DV, Liu AY, et al. Higher cumulative TFV/FTC levels in PrEP associated with decline in renal function. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 866. 12% 6% 10% 5% 1st 2nd 3rd 4th Quartile of Hair Drug Concentrations Gandhi M, et al. 23rd CROI. Boston, Abstract 866.
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US DEMO Project: Changes in Renal Function With PrEP
HIV-negative MSM and transgender women (n=557) Mean change in eGFR Declined 2.8% (-3.6 mL/min) during first 12 weeks (P=0.005) Remained stable through week 48 (P=0.91) 2 consecutive visits with a >10% decline in eGFR and a >0.2 mg/dL increase in creatinine: 2.4% Baseline Characteristics Participants (n=557) Age (years) 33 Race/ethnicity (%) White/black/Latino/Asian 48/35/7/5 Geographic origin (%) San Francisco Miami Washington, DC 54 28 18 Hypertension (%) 11 Diabetes (%) 2 Baseline eGFR (mL/min) eGFR <70 mL/min (%) 97.1 6 Slide: US DEMO Project: Changes in Renal Function With PrEP Liu and colleagues evaluated changes in renal function among participants enrolled in the open-label US PrEP Demonstration project.1 HIV-negative MSM and transgender women (n=557). The mean change in eGFR was a decline of 2.8% (-3.6 mL/min) during first 12 weeks (P=0.005), which remained stable through week 48 (P=0.91).1 Only 2.4% of patients experienced a >10% decline in eGFR and a creatinine increase >0.2 mg/dL.1 Reference Liu AY, Vittinghoff E, Anderson PL, et al. Changes in renal function associated with TDF/FTC PrEP use in the US demo project. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 867. Liu AY, et al. 23rd CROI. Boston, Abstract 867.
42
US DEMO Project: Changes in Renal Function With PrEP
New-onset eGFR <70 mL/min: 13% Factors associated with new-onset eGFR <70 mL/min Older age (P=0.02) Baseline eGFR <90 mL/min (P<0.001) Tenofovir diphosphate levels were not associated with eGFR <70 mL/min (P=0.38) PrEP discontinuation due to elevated creatinine (>1.5x ULN) (0.5%, 3/557) eGFR <70 mL/min Within 1 Year of PrEP Baseline eGFR (mL/min) <90 >90 Prevalence (%) Slide: US DEMO Project: Changes in Renal Function With PrEP New-onset eGFR <70 mL/min was detected in 13% during follow-up. Factors associated with new onset eGFR <70 mL/min included older age (P=0.02) and baseline eGFR <90 mL/min (P<0.001).1 Tenofovir diphosphate levels were not associated with eGFR <70 mL/min (P=0.38).1 PrEP discontinuation due to elevated creatinine (>1.5x ULN) occurred in 0.5% (3/557) of patients.1 Reference Liu AY, Vittinghoff E, Anderson PL, et al. Changes in renal function associated with TDF/FTC PrEP use in the US demo project. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 867. 18-25 26-35 36-45 >45 Age Group (years) Liu AY, et al. 23rd CROI. Boston, Abstract 867.
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Case Report: Multiclass Resistant HIV Infection Despite High Adherence to PrEP
43-yr-old MSM acquired multiclass resistant HIV-1 infection following 24 mos of oral once-daily TDF/FTC PrEP Pharmacy records, blood concentration analyses, and clinical history support recent and long-term adherence to PrEP PrEP failure likely result of exposure to PrEP-resistant, multiclass resistant HIV-1 strain Drug Class Mutations Detected on Day 7 Following p24-Positive Test Estimated Fold-Change in IC50 or Change in Response (Drug) NRTI 41L, 67G, 69D, 70R, 184V, 215E 1.9x (ABC), 61x (3TC), 38x (FTC), 1.3x (TDF) NNRTI 181C 43x (NVP) PI 10I No relevant change INSTI 51Y, 92Q Reduced (RAL), resistant (EVG), reduced (DTG) 3TC, lamivudine; ABC, abacavir; DTG, dolutegravir; EVG, elvitegravir; FTC, emtricitabine; MSM, men who have sex with men; NVP, nevirapine; PrEP, pre-exposure prophylaxis; RAL, raltegravir; TDF, tenofovir disoproxil. This is a very well characterized example of a PrEP failure. A 43-year-old man who has sex with men was on oral once-daily TDF/FTC and, by pharmacy records, blood analysis, and clinical history, appeared to be quite adherent but became infected anyway. Unfortunately, he was exposed to a very highly drug–resistant variant that included multiple nucleoside mutations, a classical NNRTI mutation, and a known integrase mutation. Hopefully, this will be an uncommon scenario. Slide credit: clinicaloptions.com Knox DC, et al. CROI Abstract 169aLB.
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Prophylactic Efficacy of Emtricitabine/Tenofovir AF Against Rectal SHIV Infection
Macaque model to simulate populations at high risk for HIV infection Weekly rectal exposure with R5 virus inoculum (SHIV162p3) for up to 19 weeks Identical design used to demonstrate efficacy of FTC/TDF after 14 challenges Dosing groups (n=6 per arm) FTC/TAF (20/1.5 mg/kg) or placebo given orally by gavage (under anesthesia) 1 day before and 2 hours after SHIV exposure Single-dose pharmacokinetics (1.5 mg/kg of TAF) ~90% lower plasma TFV exposure PBMC TFV-DP levels within range of 25 mg dose in humans Lower rectal TFV-DP exposure compared with TDF (via rectal biopsy) Slide: Prophylactic Efficacy of Emtricitabine/Tenofovir AF Against Rectal SHIV Infection Massud and colleagues used the macaque model to simulate populations at high risk for HIV infection by weekly rectal exposure to R5 virus inoculum (SHIV162p3) for up to 19 weeks. This was the identical design used to demonstrate efficacy of emtricitabine/tenofovir DF after 14 challenges.1 The dosing groups (n=6 per arm) included:1 Emtricitabine/tenofovir AF (20/1.5 mg/kg) or placebo given orally by gavage (under anesthesia) 1 day before and 2 hours after SHIV exposure. Single-dose pharmacokinetics (1.5 mg/kg of TAF) found 90% lower plasma tenofovir exposure, PBMC tenofovir diphosphate levels within range of 25-mg dose in humans, and lower rectal tenofovir diphosphate exposure compared with tenofovir DF (via rectal biopsy).1 Reference Massud I, Mitchell J, Babusis D, et al. Chemoprophylaxis with oral FTC/TAF protects macaques from rectal SHIV infection. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 107. DP: diphosphate. Massud I, et al. 23rd CROI. Boston, Abstract 107.
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Protection Against SHIV
Prophylactic Efficacy of Emtricitabine/Tenofovir AF Against Rectal SHIV Infection Protection Against SHIV FTC/TAF (n=6) 100% Placebo (n=6) Protected (%) Slide: Prophylactic Efficacy of Emtricitabine/Tenofovir AF Against Rectal SHIV Infection Emtricitabine/tenofovir AF prevented SHIV infection in all 6 macaque compared with SHIV infection in all 6 placebo macaques.1 Reference Massud I, Mitchell J, Babusis D, et al. Chemoprophylaxis with oral FTC/TAF protects macaques from rectal SHIV infection. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 107. 0% SHIV Challenges Massud I, et al. 23rd CROI. Boston, Abstract 107.
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RING STUDIES
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Dapivirine Vaginal Ring for HIV Prevention in Women at High Risk: 2 Phase 3 Trials
ASPIRE (MTN-020) RING STUDY (IMP 027) Malawi, South Africa, Uganda, Zimbabwe Malawi, South Africa, Uganda, Zimbabwe Women 18 to 45 Years of Age (n=2629) Women 18 to 45 Years of Age (n=1959) Dapivirine Ring (n=1313) Placebo Ring (n=1316) Dapivirine Ring (n=1307) Placebo Ring (n=652) Slide: Dapivirine Vaginal Ring for HIV Prevention in Women at High Risk: 2 Phase 3 Trials The safety and efficacy of the dapivirine vaginal ring for HIV prevention in women at high risk for HIV infection was evaluated in 2 phase 3 trials conducted in Africa.1-3 ASPIRE (n=2629). RING study (n=1959). References Baeten JM, Palanee-Phillips T, Brown ER, et al. A phase III trial of the dapivirine vaginal ring for HIV-1 prevention in women. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 109LB. Baeten JM, Palanee-Phillips T, Brown ER, et al. Use of a vaginal ring containing dapivirine for HIV-1 prevention in women. N Engl J Med Feb 22. [Epub ahead of print]. Nel A, Kapiga S, Bekker L-G, et al. Safety and efficacy of dapivirine vaginal ring for HIV-1 prevention in African women. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 110LB. Dapivirine: NNRTI. Women self-inserted and removed ring at 4-week intervals. All women received a comprehensive package of HIV prevention services. Baeten JM, et al. 23rd CROI. Boston, Abstract 109LB. Baeten JM, et al. N Engl J Med. 2016;Feb 22. [Epub ahead of print]. Nel A, et al. 23rd CROI. Boston, Abstract 110LB.
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Dapivirine Vaginal Ring: Reduction in HIV Seroconversion
ASPIRE (MTN-020) RING STUDY (IMP 027) Dapivirine (n=1313) Placebo (n=1316) HIV infections (number) 71 97 HIV incidence (person-years) 3.3 4.5 HIV protection effectiveness (%) 27 (95% CI: 1, 46) P=0.04 Dapivirine (n=1300) Placebo (n=650) HIV infections (number) 77 56 HIV incidence (person-years) 4.1 6.1 HIV protection effectiveness (%) 31 (95% CI: 0.9, 52) P=0.04 Slide: Dapivirine Vaginal Ring: Reduction in HIV Seroconversion In the ASPIRE study, HIV incidence decreased 27% from 4.5 to 3.3 HIV infections/person-years in the placebo and dapivirine arms, respectively. In the RING study, there was a 31% reduction in HIV seroconversions.1-3 References Baeten JM, Palanee-Phillips T, Brown ER, et al. A phase III trial of the dapivirine vaginal ring for HIV-1 prevention in women. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 109LB. Baeten JM, Palanee-Phillips T, Brown ER, et al. Use of a vaginal ring containing dapivirine for HIV-1 prevention in women. N Engl J Med Feb 22. [Epub ahead of print]. Nel A, Kapiga S, Bekker L-G, et al. Safety and efficacy of dapivirine vaginal ring for HIV-1 prevention in African women. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 110LB. Baeten JM, et al. 23rd CROI. Boston, Abstract 109LB. Baeten JM, et al. N Engl J Med. 2016;Feb 22. [Epub ahead of print]. Nel A, et al. 23rd CROI. Boston, Abstract 110LB.
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Dapivirine Vaginal Ring: Reduction in HIV Seroconversion
ASPIRE (MTN-020) (Post-Hoc Analysis) RING STUDY (IMP 027) (Pre-Defined Analysis) -15% P=NS -27% -27% Reduction in HIV Seroconversion (%) P=0.04 P=NS Reduction in HIV Seroconversion (%) -31% P=0.04 Slide: Dapivirine Vaginal Ring: Reduction in HIV Seroconversion In a post-hoc analysis of the ASPIRE study and pre-defined analysis of the RING study, there was no impact of the dapivirine vaginal ring on HIV prevention among women <21 years of age. This was attributed to lower adherence rates in this group of women and reinforces the importance of adherence for PrEP to be effective.1-3 References Baeten JM, Palanee-Phillips T, Brown ER, et al. A phase III trial of the dapivirine vaginal ring for HIV-1 prevention in women. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 109LB. Baeten JM, Palanee-Phillips T, Brown ER, et al. Use of a vaginal ring containing dapivirine for HIV-1 prevention in women. N Engl J Med Feb 22. [Epub ahead of print]. Nel A, Kapiga S, Bekker L-G, et al. Safety and efficacy of dapivirine vaginal ring for HIV-1 prevention in African women. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 110LB. -37% P<0.001 -56% P<0.001 Overall <21 >21 Overall <21 >21 Age (years) Age (years) Baeten JM, et al. 23rd CROI. Boston, Abstract 109LB. Baeten JM, et al. N Engl J Med. 2016;Feb 22. [Epub ahead of print]. Nel A, et al. 23rd CROI. Boston, Abstract 110LB.
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Injectable PrEP
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ÉCLAIR Study: Cabotegravir LA for PrEP in Low-Risk, HIV-Uninfected Men
Oral Phase Injection Phase Cabotegravir 30 mg qd (n=105) Cabotegravir LA 800 mg IM every 12 weeks (n=94) Phase 2a Double-blind Men 18 to 65 years of age Low risk of acquiring HIV No PEP or ART No liver disease 5:1 randomization Placebo (n=21) Saline Placebo IM every 12 weeks (n=21) Slide: ÉCLAIR Study: Cabotegravir LA for PrEP in Low-Risk, HIV-Uninfected Men Markowitz and colleagues conducted a phase 2a study to evaluate the use of cabotegravir maintenance therapy in men at low risk of acquiring HIV. Cabotegravir was first administered orally 30 mg/day for 4 weeks, then via IM infection of 800 mg once every 12 weeks.1 Reference Markowitz M, Frank I, Grant R, et al. ÉCLAIR: Phase 2A safety and PK study of cabotegravir LA in HIV-uninfected men. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 106. Week Cabotegravir: INSTI. Baseline characteristics (cabotegravir oral phase): Median age: 31 years. White/black race/ethnicity: 56%/31%. Hispanic/Latino race/ethnicity: 15%. Median height: 176 cm. Median BMI: 26 kg/m2. Risk of HIV acquisition: Homosexual contact: 85%. Heterosexual contact: 21% Occupational exposure: 2%. Markowitz M, et al. 23rd CROI. Boston, Abstract 106.
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ÉCLAIR Study: Safety of Cabotegravir LA for PrEP in Low-Risk, HIV-Uninfected Men
Adverse events (%) Placebo (n=21) Cabotegravir (n=94) Grade 1-4 (%) 90 98 Grade 2-4 (%) 48 80 Injection site pain Pyrexia Injection site pruritus Injection site swelling 5 59 7 6 Serious adverse event (%) <1 Slide: ÉCLAIR Study: Safety of Cabotegravir LA for PrEP in Low-Risk, HIV-Uninfected Men Overall, maintenance dosing of once every 12 weeks of cabotegravir was safe, with the most common adverse events being related to injection site reactions.1 Pharmacokinetic analysis found that dosing once every 12 weeks produced peak and trough levels that were higher and lower, respectively, than expected during the study. The authors noted that IM dosing once every 8 weeks may be necessary in men.1 Reference Markowitz M, Frank I, Grant R, et al. ÉCLAIR: Phase 2A safety and PK study of cabotegravir LA in HIV-uninfected men. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 106. With dosing once every 12 weeks, cabotegravir peak and trough levels were higher and lower, respectively, than expected during the study IM dosing once every 8 weeks may be necessary in men No laboratory adverse events led to study discontinuation. Cabotegravir administered IM once every 12 weeks. Markowitz M, et al. 23rd CROI. Boston, Abstract 106.
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ÉCLAIR: Patient Satisfaction With IM Therapy vs Oral Phase
Pt satisfaction assessed by questionnaire at Wk 18 of IM treatment; asked pts to compare satisfaction of current IM vs past oral therapy[1] In separate macaque study, CAB LA conferred 88% protection (21/24 animals) against IV exposure to SIVmac251; results may be relevant to humans who inject drugs[2] How satisfied are you with your current treatment? How satisfied would you be to continue with your present form of treatment? More Neutral Less 100 100 81 80 71 29 80 74 62 60 60 Pts (%) 40 40 23 24 CAB, cabotegravir; IM, intramuscular; IV, intravenous; LA, long acting. So this is looking at questionnaire-based satisfaction with IM therapy vs oral in the ÉCLAIR study. On the left-hand side is how satisfied patients were with their current treatment. What you can see is that about two thirds of the patients were more satisfied being on an injectable than a pill, 15% were less satisfied, and 23% were neutral. It was similar between placebo and cabotegravir. And then, they were asked how satisfied would you be to continue your current treatment? Again, you can see three quarters of the patients were positive about continuing and about 10% would not. There was a separate study, which is the bullet on the bottom, looking at cabotegravir LA in a macaque model. It showed that 21 out of 24 monkeys were protected from IV exposure to SIV after getting cabotegravir long-acting, suggesting that perhaps this strategy could be used as PrEP in people who inject drugs. 19 15 20 20 15 11 5 CAB (n = 91) Placebo (n = 21) CAB (n = 91) Placebo (n = 21) Markowitz M, et al. CROI Abstract 106. 2. Andrews CD, et al. CROI Abstract 105. Reproduced with permission. Slide credit: clinicaloptions.com
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Cabotegravir LA: Prophylactic Efficacy Against IV Challenge of SIV in Macaques
IV SIV challenge model in macaques Mimics blood transfusions based on the per-act probability of infection IV challenge with 17 AID50 SIVmac251 on week 2 Untreated controls (n=5) Cabotegravir LA IM groups Group 1: 50 mg/kg at week 0 and 4 (mimic sexual transmission) Group 2: 50 mg/kg at week 0 (determine need for second injection) Group 3: 25 mg/kg at week 0 and 50 mg/kg on week 4 (correlate cabotegravir plasma concentrations at the time of challenge with protection) Infection status by real-time PCR amplification of viral gag sequences from plasma obtained weekly Plasma cabotegravir concentrations by HPLC-MS/MS Slide: Cabotegravir LA: Prophylactic Efficacy Against IV Challenge of SIV in Macaques Andrews and colleagues evaluated the effectiveness of cabotegravir LA as PrEP against IV SIV challenge in a model that mimics blood transfusions based on the per-act probability of infection. Three groups of rhesus macaques (n=8/group) were injected IM with cabotegravir LA and challenged IV with 17 AID50 SIVmac251 on week 2. Group 1: 50 mg/kg on week 0 and 4 (mimic sexual transmission). Group 2: 50 mg/kg on week 0 (determine need for second injection). Group 3: 25 mg/kg on week 0 and 50 mg/kg on week 4 (correlate cabotegravir plasma concentrations at the time of challenge with protection). Controls: 5 untreated macaques. Reference Andrews CD, St. Bernard L, Poon A. Cabotegravir long-acting injection protects macaques against intravenous challenge. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 105. Andrews CD, et al. 23rd CROI. Boston, Abstract 105.
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Protection Against SIV (IV Challenge)
Cabotegravir LA: Prophylactic Efficacy Against IV Challenge of SIV in Macaques Protection Against SIV (IV Challenge) 100% (8/8) 88% (7/8) 75% (6/8) Protected (%) Controls 0/5 Cabotegravir LA 50 mg/kg (2 doses, 4 weeks apart) 50 mg/kg 25 and 50 mg/kg (4 weeks apart) Slide: Cabotegravir LA: Prophylactic Efficacy Against IV Challenge of SIV in Macaques In an IV challenge model, 21 of the 24 cabotegravir LA-treated macaques remained aviremic, resulting in 88% protection. The plasma cabotegravir concentration at the time of challenge is more important for protection than sustaining plasma concentrations with the second cabotegravir LA injection.1 Reference Andrews CD, St. Bernard L, Poon A. Cabotegravir long-acting injection protects macaques against intravenous challenge. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 105. IV SIV Time (weeks) The plasma cabotegravir concentration at the time of challenge is more important for protection than sustaining plasma concentrations with the second cabotegravir LA injection. Andrews CD, et al. 23rd CROI. Boston, Abstract 105.
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Hepatitis C
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At your clinic/institution, who is providing the majority of HCV treatment?
PCPs NPs or PAs Specialists (hepatology or infectious diseases) Don’t Treat or Refer Out Don’t Know
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ASCEND: HCV Treatment Provided in Primary Care
Open-label, nonrandomized, phase IV longitudinal trial Primary endpoint: SVR12 600 HCV-infected pts in 3 community centers in Washington, DC 24% coinfected with HIV; 96% black; 18% treatment experienced; 36% F3/F4 fibrosis/cirrhosis Care provided by: NP (n = 150), PCP (n = 156), or ID or hepatology specialist (n = 294) All pts treated with LDV/SOF per FDA labelling Providers completed 3-hr training on AASLD/IDSA HCV guidance AASLD, American Association for the Study of Liver Diseases; FDA, US Food and Drug Administration; HCV, hepatitis C virus; ID, infectious diseases; IDSA, Infectious Diseases Society of America; LDV, ledipasvir; NP, nurse practitioner; PCP, primary care provider; SOF, sofosbuvir; SVR, sustained virologic response. ASCEND was a phase IV trial looking at treatment of hepatitis C at 3 community centers in Washington, DC. About one quarter of the patients were coinfected with HIV and HCV, and most patients were black. Treatment was delivered by a nurse practitioner, a primary care provider, or an ID or hepatology specialist. All patients received ledipasvir/sofosbuvir, and all the providers had a 3-hour training course. Slide credit: clinicaloptions.com Kattakuzhy SM, et al. CROI Abstract 538LB.
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ASCEND: Interim per Protocol Efficacy and Adherence
Adherence to clinic visits (Wks 4, 8, 12) significantly higher with PCPs (49%) and NPs (51%) vs specialists (19%) (P = .002) 95 92 97 NP PCP Specialist SVR12 (%) 100 80 60 40 20 Total (n = 304) HIV/HCV-Coinfected Pts (n = 62) 91 89 93 HCV, hepatitis C virus; NP, nurse practitioner; PCP, primary care provider; SVR, sustained virologic response. What you can see here is that it didn't matter who did the treatment; SVR rates were consistently high. And then, if you looked at the subset of HIV/HCV-coinfected patients, therapy was successful with no real difference between providers. Slide credit: clinicaloptions.com Kattakuzhy SM, et al. CROI Abstract 538LB.
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Epidemiology HIV Lifetime Risk
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Diagnoses of HIV Infection among Men Who Have Sex with Men Aged 13–24 Years, by Race/Ethnicity, 2010–2014 United States and 6 Dependent Areas This graph displays 2010 through 2014 racial/ethnic trends in the estimated numbers of diagnoses of HIV infection among young (aged 13–24 years at diagnosis) men who have sex with men (MSM) in the United States and 6 dependent areas. Among young MSM (aged 13–24 years), the racial/ethnic group with the largest number of diagnoses each year during this time period were blacks/African Americans, followed by Hispanics/Latinos, whites, persons of multiple races, Asians, American Indians/Alaska Natives, and Native Hawaiians/other Pacific Islanders. Young Hispanic/Latino MSM experienced the largest increase in numbers of diagnoses of HIV infection of all racial/ethnic groups—from 1,488 diagnoses in 2010 to 1,898 diagnoses in 2014 (representing an increase of 28%). Data include persons with a diagnosis of HIV infection regardless of stage of disease at diagnosis. All displayed data are estimates. Estimated numbers resulted from statistical adjustment that accounted for reporting delays and missing transmission category, but not for incomplete reporting. Data on men who have sex with men do not include men with HIV infection attributed to male-to-male sexual contact and injection drug use. Hispanics/Latinos can be of any race. Note. Data include persons with a diagnosis of HIV infection regardless of stage of disease at diagnosis. All displayed data have been statistically adjusted to account for reporting delays and missing transmission category, but not for incomplete reporting. Data on men who have sex with men do not include men with HIV infection attributed to male-to-male sexual contact and injection drug use. a Hispanics/Latinos can be of any race.
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Diagnoses of HIV Infection among Men Who Have Sex with Men Aged 13–24 Years, by Race/Ethnicity, 2014—United States and 6 Dependent Areas N = 8,018 This pie chart displays the percentage distribution by race/ethnicity of young (aged 13–24 years at diagnosis) men who have sex with men (MSM) who were diagnosed with HIV infection during 2014 in the United States and 6 dependent areas. Of all MSM aged 13–24 years diagnosed with HIV infection in 2014, an estimated 54% were black/African American, followed by Hispanics/Latinos (24%) and whites (16%). This breakdown differs from the percentage breakdown in which all ages were considered: blacks/African Americans accounted for 38% of diagnoses among all adult and adolescent MSM, whites accounted for 30%, and Hispanics/Latinos accounted for 27% (see slide 6 in series). Data include persons with a diagnosis of HIV infection regardless of stage of disease at diagnosis. All displayed data are estimates. Estimated numbers resulted from statistical adjustment that accounted for reporting delays and missing transmission category, but not for incomplete reporting. Data on men who have sex with men do not include men with HIV infection attributed to male-to-male sexual contact and injection drug use. Hispanics/Latinos can be of any race. Note. Data include persons with a diagnosis of HIV infection regardless of stage of disease at diagnosis. All displayed data have been statistically adjusted to account for reporting delays and missing transmission category, but not for incomplete reporting. Data on men who have sex with men do not include men with HIV infection attributed to male-to-male sexual contact and injection drug use. a Hispanics/Latinos can be of any race.
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CDC: Estimated Lifetime Risk of a Diagnosis of HIV Infection in the US
Overall lifetime risk has decreased From 1 in 78 ( ) to 1 in 99 ( ) Large disparities by sex, race/ethnicity, and risk group for lifetime risk All males (1.6%) Black 7 times white (5% versus 0.8%) MSM 79 times heterosexual (17% versus 0.2%) PWID 13 times heterosexual (2.8% versus 0.2%) All females (0.4%) Black 18 times white (2.1% versus 0.1%) Lifetime Risk of an HIV Diagnosis Among MSM 50% (1 in 2) Slide: CDC: Estimated Lifetime Risk of a Diagnosis of HIV Infection in the US Hess and colleagues estimated the lifetime risk of an HIV diagnosis for sex, age, and racial/ethnic subgroups as well as by state. They used HIV diagnosis, mortality, and census population data to derive lifetime and age-conditional risk estimates of being diagnosed with HIV. Data on HIV diagnoses (adjusted for reporting delays) were obtained from the National HIV Surveillance System (NHSS). The numbers of HIV diagnoses (NHSS) and non-HIV deaths (mortality data) between 2009 and 2013 were used to calculate probabilities of a diagnosis of HIV at a given age, conditional on never having developed HIV prior to that age using a competing risks method. The lifetime risk estimate is the cumulative probability of being diagnosed with HIV from birth. Age-conditional risk measures were the probabilities of an individual of a specified age being diagnosed with HIV within 10 years.1 Overall, the estimated lifetime risk of being diagnosed with HIV has decreased from 1 in 78 ( ) to 1 in 99 ( ). There were large disparities by sex, race/ethnicity, and risk group for lifetime risk.1 All males (1.6%). Black 7 times white (5% versus 0.8%). MSM 79 times heterosexual (17% versus 0.2%). PWID 13 times heterosexual (2.8% versus 0.2%). All females (0.4%), with black females 18 times white females (2.1% versus 0.1%). Reference Hess K, Hu X, Lansky A, et al. Estimating the lifetime risk of a diagnosis of HIV infection in the United States. Program and abstracts from the 23rd Conference on Retroviruses and Opportunistic Infection; February 22-25, 2016; Boston, MA. Abstract 52. Risk (%) 25% (1 in 4) 17% (1 in 6) 9% (1 in 11) Overall Black Hispanic White PWID: persons who inject drugs. Data sources: National HIV Surveillance System, National Center for Health Statistics (mortality), census data. Hess K, et al. 23rd CROI. Boston, Abstract 52.
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Lifetime Risk of HIV Diagnosis by State
Source: Centers for Disease Control (CDC)
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Mental Health and HIV
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Mental Disorders and Substance Abuse
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Childhood Sexual Trauma
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Persons Living with Diagnosed or Undiagnosed HIV Infection HIV Care Continuum Outcomes, 2012 — United States and Puerto Rico This slide presents data on four HIV care continuum outcomes: HIV diagnosis (based on data from the National HIV Surveillance System) and receipt of HIV medical care, antiretroviral prescription, and viral suppression (based on data from the Medical Monitoring Project). The denominator is the estimated number of persons aged ≥13 years with diagnosed or undiagnosed HIV infection (prevalence, based on data from NHSS) in the United States. Of an estimated 1,218,400 persons living with (diagnosed or undiagnosed) HIV infection in the United States at the end of 2012, 87.2% had been diagnosed, 39.1% received medical care, 36.2% were prescribed antiretroviral therapy, and 30.2% achieved viral suppression. National HIV Surveillance System: Estimated number of persons aged ≥13 years with diagnosed or undiagnosed HIV infection (denominator) who were alive at the end of the specified year. Estimated number of persons aged ≥13 years with diagnosed HIV infection (numerator) who were alive at the end of the specified year; calculated as part of the overall prevalence estimate. Medical Monitoring Project: Estimated number of persons aged ≥18 years who received HIV medical care January to April of 2012, whose medical record contained documentation of antiretroviral therapy prescription, or whose most recent VL in the previous 12 months was undetectable or <200 copies/mL—United States and Puerto Rico. National HIV Surveillance System,: Estimated number of persons aged ≥13 years living with diagnosed or undiagnosed HIV infection (prevalence) in the United States at the end of The estimated number of persons with diagnosed HIV infection was calculated as part of the overall prevalence estimate. Medical Monitoring Project: Estimated number of persons aged ≥18 years who received HIV medical care during January to April of 2012, were prescribed ART, or whose most recent VL in the previous year was undetectable or <200 copies/mL—United States and Puerto Rico.
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THANK YOU Questions /Discussion
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