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The importance of TB and HIV programme collaboration and expanding the scope of collaboration for the future. 20 min. George Loth WHO/HIV/SRM. Learning without thinking is labour lost; thinking without learning is perilous Confucius VI BC. UNGASS.
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The importance of TB and HIV programme collaboration and expanding the scope of collaboration for the future.20 min.George LothWHO/HIV/SRM
Learning without thinking is labour lost;thinking without learning is perilousConfucius VI BC
UNGASS Reduction of HIV prevalence by 25% in most affected countries Three million people in developing countries on HIV/AIDS treatment by 20005
Priorities ? • Accelerating Access Initiative June 2002 • Scaling Up ARV therapy in limited settings June 2002 • A commitment to Action for Expanded Access to HIV/AIDS treatment HIV December 2002
Increasing Access to HIV testing and counselling.From VCT to TC
Estimated Cost for T & C • PMTCT : 46 million • Treatment : 37 million • Prevention : 101.1 million • Grand total : 184.1 millionNew data
Analysis Inputs: Costs • Per Client Cost Estimates: • Health System Enhancements: $5 ($1-$9) • Pretest Counseling: $2 ($1-$3) • HIV Testing & Posttest Counseling –$6 ($3-$9) • NVP –for mother and infant - $4.82 (+/- 25%) • HIV Treatment for infants - $281($0-$562) • Note – cost estimates may be conservative (lower than actual). Opted for lower cost estimates until better data is available.
Inputs: Proportion of Prenatal Women who have at Least 1 ANC Visit
Inputs: Proportion of Women Receiving Pretest Counseling Data from UNICEF
Target for ARV treatment 3 million on ART by 2005 • by 2007, 45% requiring ART ,receive it (CMH). • 40 million PWHAs in resource-limited setting • 15% clinically sick enough to need ART Aspirational goal; without capacity development particularly human resources we will fail !
A Public Health approach • Able to scale up ART to meet the needs of people living with HIV/AIDS in resource-limited settings • standardisation and simplification of ARV regimes to support broad and efficient implementation, and accessible treatment programmes • evidence-based recommendations aiming to avoid substandard or sub-optimal treatment or the creation of the potential for the emergence of drug resistant virus
Entry and Monitoring • Must have: clinical assessment, HIV testing, and haemoglobin t • Additional basic testing: white blood cell count and differential, LFTs, creatinine and/or blood urea nitrogen, serum glucose, and pregnancy tests for women. • Desirable tests include bilirubin, amylase and serum lipids. • CD4 cell determinations are very desirable and every effort should be made to make these widely available. • Viral load testing is currently considered optional. Increasing recognition that access to laboratory monitoring will be a major access bottleneck
Underlying considerations • Potent regimens (including at least 3 drugs) to prevent resistance and maximise benefit • Standardisation to allow use in settings where HIV/AIDS specialists and tests to monitor treatment are not readily available and facilitate continuous availability of the drugs • Recommendations on best available evidence • Incorporate flexibility in regimens to manage toxicity • Include specific groups - children, pregnancy, IDUs and co-pathology • aim for standard first then second-line regimes
ART in HIV-positive patient with TB Not ideal to prescribe seven potentially toxic drugs together Many will be diagnosed with HIV when present with TB • Recommend that TB patients complete TB therapyunless a high risk of HIV progression/death (CD4; dissemination) • Try to complete induction treatment if possible without starting ARVs • If clinically necessary treat both diseases together
ART in HIV-positive patient with TB CD4 below 50 and/or disseminated TB • dual treatment indicated • ZDV/3TC backbone; ABC or EFV or SQV/r preferred; CD4 between 50 - 200 or TLC < 1000-1200 • complete 2 months of induction therapy • same regime considerations Pulmonary TB and CD4 > 200 or TLC > 1000-1200 • Treat TB • Monitor clinical status; start ARV if necessary • Start “standard” ART after therapy when indicated
ART in HIV-positive patients with TB • Almost a data free-zone … • need to review evidence and experience offirst wave of TB-HIV treatment centres ASAP • revise guidelines accordingly “In this rapidly evolving field, WHO recognises that these recommendations will need to be updated on a regular basis”
Conclusions • Potentially huge additional TB-HIV disease burden which is currently ignored …... • Unclear of extent and what to do • If not addressed TB will continue as biggest killer in HIV (and we fail with UNGASS) • TB is biggest opportunity for immediately improving outcome and survival for HIV-TB • Go for a positive not fatalistic message
The further challenge Urgent need for collaboration ! Patient with unknown HIV and TB status and unknown patient • Improvement of Surveillance (SGS and DHS+). • Strengthening PHC / District HC on TB and HIV issues (undiagnosed). • Support in high-burden countries acute medical services.
Not every thing that counts can be counted and everything that can be counted counts.Albert Einstein