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Pablo Tebas, MD
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ACTG 5202/5224s STARTMRK Metabolic Study STEAL (abacavir and inflammatory markers) EUROSIDA and risk of CKD HOPS and risk of fractures Vitamin D studies Cancer studies Hepatitis
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A5224s
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In low HIV RNA stratum, in comparison between ABC/3TC vs. TDF/FTC: significantly greater increase in TC, LDL, HDL with both EFV and ATV/r; greater increase in TG with ATV/r Median Change in Fasting Lipids (Week 48, mg/dL) Daar E, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 59LB. Change in Calculated Creatinine Clearance, (mL/min) TCLDLHDLTG ABC/3TC ATV/r2913824 EFV40211215 P-value<0.0010.002<0.0010.26 TDF/FTC ATV/r102514 EFV2210813 P-value<0.0010.002<0.0010.26 Week 48Week 96 ABC/3TC ATV/r3.16.1 EFV4.37.8 P-value0.170.33 TDF/FTC ATV/r-0.9-2.6 EFV4.14.9 P-value0.001<0.001
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A5224s * -linear regression No significant interaction of NRTI and NNRTI/PI components (p=0.63) * *
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A5224s * * * -linear regression No significant interaction of NRTI and NNRTI/PI components (p=0.69)
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A5224s (n=269) 5.6% had ≥ 1 fracture (all traumatic) No statistically significant differences between NRTI components or NNRTI/PI components in fracture rate (Fisher’s exact) or time to first fracture (log-rank test) A5202 (n=1857) 4.3% fracture rate (12.7% of those atraumatic) No statistically significant differences between NRTI components or NNRTI/PI components in fracture rate (Fisher’s exact), incidence or time to first fracture (log-rank test) TDF/FTC +EFV (n=464) TDF/FTC +ATV/r (n=465) ABC/3TC +EFV (n=465) ABC/3TC +ATV/r (n=463) Total (n=1857) % with ≥ 1 fractures 4.5% 4.7%3.4%4.3% Incidence per 100 pt-year 1.8 1.91.41.7 A5224s
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No statistically significant differences between NRTI components and NNRTI/PI components (Fisher’s exact test) % Limb fat loss from 0 to 96 weeks TDF/FTC +EFV (n=56) TDF/FTC +ATV/r (n=45) ABC/3TC +EFV (n=53) ABC/3TC +ATV/r (n=49) Total (n=203) ≥ 10% Primary 14.3% (6.4%,25.3%) 15.6% (7.0%,28.6%) 18.9% (9.4%, 31.6%) 16.3% (7.5%,28.8%) 16.3% (11.8%, 22.0%) ≥ 20% Post hoc 8.9%0%3.8%6.1%4.9% A5224s
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* * * -linear regression No significant interaction of NRTI and NNRTI/PI components (p=0.67)
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A5224s * * * -linear regression No significant interaction of NRTI and NNRTI/PI components (p=0.66)
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Bone All regimens appeared to produce an initial bone loss with subsequent stabilization or even improvement after week 48 TDF/FTC led to greater BMD loss in hip and lumbar spine than ABC/3TC ATV/r led to greater BMD loss in lumbar spine (but not hip) than EFV Fractures were similarly distributed among study arms Fat Regimens containing TDF/FTC or ABC/3TC increased limb fat and trunk fat and were not significantly different ATV/r led to greater gain in limb fat and trunk fat than EFV Lipoatrophy, even the mild protocol-defined form, occurred in 16% (95% CI 12-22 %) of the participants and was not significantly different between TDF/FTC and ABC/3TC or between EFV and ATV/r A5224s
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Randomized, double-blind study comparing RAL vs EFV, both with TDF/FTC Week 96 lipids (all pts, n=563) EFV increased TC, HDL-C, LDL-C, TG, and glucose sig more than EFV No sig difference in total/HDL chol ratio Dexa substudy (n=111) Overall, limb fat increased over time By week 96, 3/37 pts on RAL, 2/38 on EFV had >20% loss of limb fat DeJesus E, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 720. ‡ p <0.001 * P =0.025 ‡‡ ‡ ‡ * 18.2 17.0 18.1 17.7 Raltegravir Group554037 Efavirenz Group564638 Number of Contributing Patients Mean Percent (%) Change (SE) in Appendicular Fat Over Time
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VA cohort 19424 patients 278 MIs No association with ABC Quebec nested case control 125 MIs 1084 Control Mild association Bedimo et al. MOAB202 Durand et al. TUPEB175
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Primary Results: Similar virologic results Increased risk of CV events in ABC/3TC group (8 ABC/3TC vs 1 TDF/FTC, p=0.48) not explained by lipid changes No difference in renal outcomes Loss of bone density in TDF/FTC vs gain in ABC/3TC group Inflammatory Marker Substudy 14 biomarkers (inflammatory/renal, thrombotic, endothelial function) measured at weeks 0, 12, 24, and 48 Primary analysis (change from week 0-12): No significant association between use of ABC/3TC and change in markers Alternative explanation for ABC/3TC association with CVD needed HIV + Suppressed on 2 NRTI + PI or NNRTI (N=357) T DF/FTC FDC n=179 ABC/3TC FDC n=178 Martin A, et al. Clin Infect Dis. 2009 Nov 15;49(10):1591-601; Emery S, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 718.
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Analysis of patients with ≥3 creatinine measurements + body weight, 2004 6,842 patients with 21,482 person-years of follow-up Definition of CKD (eGRF by Cockcroft-Gault) If baseline eGFR ≥60 mL/min/1.73 m 2, fall to <60 If baseline eGFR <60 mL/min/1.73 m 2, fall by 25% 225 (3.3%) progressed to CKD Risk factors for CKD on TDF: age, HTN, HCV, lower eGFR, lower CD4+ count Cumulative Exposure to ARVs and Risk of CKD Kirk O, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 107LB. UnivariableMultivariables IRR/year95% CIP-valueIRR/year95% CIP-value Tenofovir1.321.21-1.41<0.00011.161.06-1.25<0.0001 Indinavir1.181.13-1.24<0.00011.121.06-1.18<0.0001 Atazanavir1.481.35-1.62<0.00011.211.09-1.340.0003 Lopinavir/r1.151.07-1.23<0.00011.081.01-1.160.030
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Comparison of HOPS cohort (n=8456) vs National Hospital Discharge Survey and National Hospital Ambulatory Care Medical Survey Adjusted for age and gender Fractures: 276 during median 4.8 yrs follow-up Risk factors for fractures Age >47 Nadir CD4+ count <200 HCV co-infection Diabetes Substance use Conclusion: Fracture rates are higher in HIV infected population and rate is increasing with age * Indirectly standarized using rtes from NHAMCS-OPD data Dao C, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 128. Gender-adjusted rates of fracture among adults aged 25-54 years HOPS* P = 0.01 NHAMCS-OPD P = 0.32
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Retrospective seasonal analysis of Vitamin D deficiency within Swiss cohort Started ARV in: Fall (n=108); Spring (n=103) 75% men; age = 37; White = 87%; CD4+ 227; BMI = 22.9 ARVs: TDF – 17%; NNRTIs – 43%; PI -56% Conclusions Vitamin D deficiency is common, but seasonal Blacks are at increased risk NNRTI use a risk factor Vitamin D Deficiency is Not Influenced By ART Mueller N, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 752. Baseline before cART Fall (n=108) Spring (n=103) Vitamin D Deficiency14%42% Insufficiency62%53% Target Level24% 5% 12 Months after cART Start Vitamin D Deficiency14%47% Insufficiency63%48% Target Level23% 5% 18 Months after cART Start Vitamin D Deficiency18%52% Insufficiency59%38% Target Level23%10% Deficiency <30 nmol/L Target ≥75 nmol/L
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Study of cancer risk in AIDS patients from 1980-2006 (n=372,364) Predominantly male (79%), non-hispanic black (42%), MSM (42%) Median age of 36 years at the onset of AIDS Cancer risk in years 3 - 5 after AIDS onset increased for AIDS but also Non-AIDS defining cancers Simard E, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 27. Cancer typeNo casesSIR95% CI AIDS-defining cancers Kaposi sarcoma313653215137 - 5511 Non-Hodgkin lymphoma 33453231 - 33 Cervical cancer1015.65.5 - 6.8 Non-AIDS-defining cancers Anal cancer2192724 - 31 Liver cancer863.73.0 - 4.6 Lung cancer5313.02.8 - 3.3 Hodgkin lymphoma1849.17.7 - 11 All non-AIDS related cancers 21551.71.5 - 1.8
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VA-Cohort (3,707 HIV-positive patients) Predominantly male (98%), white (43%) Median age of 47 years Lung cancer risk factors -smoking and drug abuse more often among HIV+ -Similar rates of COPD Sigel K, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 30. 26 cases per 10,000 pt-yrs 15 cases per 10,000 pt-yrs
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Berenguer, J. et al. Hepatology 2009;50:407-413; Berenguer, J, et al. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 167. Factors Associated with Liver Related Events by Cox Regression Analysis Factor Adjusted HR (95% CI) P Non-SVR vs SVR 8.92 (1.20-66.11).032 F3-F4 vs F0-F2 4.96 (2.27-10.85).000 Geno 1-4 vs 2-3 1.35 (0.63-2.88).443 HCV RNA <500K IU/mL 0.73 (0.33-1.62).444 CDC category C vs A/B 0.95 (0.49-1.87).327 Nadir CD4 cells 0.99 (0.99-1.00).319 Liver-related events include: liver-related death, lever decomposition, hepatocellular carcinoma, and transplantation 0 1 10 100 Effect of non-SVR on Risk of New ADC and Non-Liver Related Death by Cox Regression Analysis HR (95% CI)P New ADC 3.60 (1.14-9.21) 3.24 (1.08-9.74).008.06 Non-liver- related death 3.50 (1.22-10.0) 2.60 (1.63-6.68).019.135 New ADC and non- liver- related death 3.30 (1.63-6.68) 2.86 (1.24-6.55).001.013 0 1 10 Crude Adjusted
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Recent studies demonstrate polymorphisms near interleukin 28 B (IL28B) gen predict sustained virological response (SVR) to treatment with Peg-IFN + RBV in HCV-monoinfected pts harboring genotype 1 Study assessing potential role of theIL-28B treatment induced clearance of rs12979860 polymorphism in acute and chronic hepatitis C in HIV-positive patients 0 25 50 75 100 C/CC/TT/T IL28B genotype P=0.008 %SVR HIV(-)/HCV(+) P=0.039 IL28B genotype HIV(+)/chronic hepatitis C C/CC/TT/T 0 25 50 75 100 %SVR P=n.s. IL28B genotype HIV(+)/acute hepatitis C C/CC/TT/T 0 25 50 75 100 %SVR Rauch A. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 162; Natterman J, et al. ibid., Abst. 164; Rallon N, et al. ibid., Abst. 165LB.
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Rs12979860 and SVRPredictors of SVR Rauch A. 17th CROI; San Francisco, CA; February 16-19, 2010. Abst. 162; Natterman J, et al. ibid., Abst. 164; Rallon N, et al. ibid., Abst. 165LB. P = 0.684 P=0.009 P=0.002 P <0.001 3.5 3.7 8.0 11.9 HCV-RNA <500,000 IU/ml HCV Genotype 3 Rs12979860 CC Genotype Liver Fibrosis Stage F0-F2
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