from hiv testing to treatment: operations research to improve arv treatment programs
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From HIV Testing to Treatment: Operations Research to Improve ARV Treatment Programs. Treatment Acceleration Program Meeting November 30, 2006 Mark Micek, MD, MPH Health Alliance International University of Washington. ARV expansion in Mozambique. ~1.7 million HIV-infected - PowerPoint PPT PresentationTRANSCRIPT
From HIV Testing to Treatment:
Operations Research to Improve ARV Treatment Programs
Treatment Acceleration Program MeetingNovember 30, 2006
Mark Micek, MD, MPHHealth Alliance International
University of Washington
ARV expansion in Mozambique
• ~1.7 million HIV-infected
• ~270,000 need ARVs
• ~30,000 on ARVs (8/06)– 11% of those in need
HAI in Mozambique
• Works exclusively with public sector
• Provincial/district/facility level support– Sofala and Manica Provinces (27% and 19% HIV+)– Expansion of testing and ARV care sites
• 23 ARV care sites with ~6,000 on ARVs
– OR
• National level support– Maputo
GuroGuro TambaraTambara
ChembaChemba
MaringueMaringueMacossaMacossa
SussundengaSussundenga
MachazeMachaze
MachangaMachanga
MuanzaMuanza
CheringomaCheringoma
ChibabavaChibabava
HF Providing HAART (new)
17 (13)
PLWHA Registered (%) 36,270 (9)
Eligible in HAART (%) 5,250 (9)
Children <15 y in HAART (% of those in HAART)
420 (8)
HIV Treatment Expansion Plan
2006
2003 2004
2005 2006
GuroGuro TambaraTambara
ChembaChemba
MaringueMaringueMacossaMacossa
SussundengaSussundenga
MachazeMachaze
MachangaMachanga
MuanzaMuanza
CheringomaCheringoma
ChibabavaChibabava
HF Providing HAART (new) 53 (7)
PLWHA Registered (%) 100,490 (25)
Eligible in HAART (%) 23,903 (40)
Children <15 y in HAART (% of those in HAART)
3,585 (15)
HIV Treatment Expansion Plan
2008
2003 2004
2005 2006
2007 2008
Testing is first step to entering HIV care system
HIV testing centers VCT
Home-based Care
Pregnant
Day Hospital Clinical evaluation (CD4)
Start HAART in
eligible patients
Adherence to ARV
Treatment Adherence to
Care
Youth
Community
TB patients
Ill/Hospitalized Hospital
Youth VCT
pMTCT
STEP 1 HIV Testing
STEP 2 Arrival to
Day Hospital
STEP 3 CD4
Testing
STEP 4 Start
HAART
Why patients don’t start HAART: where are patients lost?
Monthly flow through the HIV care system in Beira and Chimoio, Mozambique, Jun 04 - Sept 05
HIV+
Undergo CD4 testing (78%)
Enroll at HIV clinic (59%)
Eligible for HAART (48%)
Start HAART (46%)
0
100
200
300
400
500
600
700
Ave
rag
e p
atie
nts
per
mo
nth
Step 1
Step 2
Step 3
Step 4
Specific problems with targeted HIV testing
• Targeted HIV testing = aimed at a specific group– High-risk (TB, hospitalized)– Special services available (pMTCT)
• Problems noted with testing treatment flow– pMTCT– TB patients
How can we improve the efficiency of targeted HIV testing?
• Changing counseling strategies– Opt-in Opt-out
• Operational questions:– Will opt-out ↑ HIV testing?– Will opt-out ↑ HIV treatment?– Will opt-out ↑ HIV prevention? (another talk)
Problem 1: Loss of pregnant women
• Year 2005: Beira (2 sites) and Chimoio (3 sites)– 52% of pregnant women tested for HIV
(opt-in)– 28% of HIV+ arrived at an HIV clinic
• 68% VCT (difference p<.001)
Possible solution: change the testing strategy at pMTCT sites
2005 vs. 2Q 2006: ↑ testing by 535/mo (p<.001)↑ HIV+ by 96/mo (p<.001)↑ arrival to HIV clinic by 14/mo (p=.07)
Number of pregnant women testing for HIV and arriving at an HIV clinic
0
200
400
600
800
1000
1200
1400
Q1 2005 Q2 2005 Q3 2005 Q4 2005 Q1 2006 Q2 2006
Quarter
Nu
mb
er
of
pre
gn
an
t w
om
en
# Tested for HIV
# HIV-positive
# Arriving at HIVclinic
% of pregnant women testing for HIV and arriving at an HIV clinic
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
70.0%
80.0%
90.0%
Q1 2005 Q2 2005 Q3 2005 Q4 2005 Q1 2006 Q2 2006
Quarter
% o
f p
reg
na
nt
wo
me
n
% Tested for HIV
% Arriving at HIVclinic
Strategy ∆Strategy ∆
Situation not unique
• UNICEF 2003: 11 national pMTCT programs– 49% of HIV+ women received ARV for pMTCT
• Kenya (Malonza, AIDS, 2003)– 1249/1282 accepted test (97%)– Rapid tests associated with higher proportion receiving
results (96% vs. 73%, p<.001)– No difference in receiving ARV for pMTCT (19% vs. 11%,
p=.2)
• Malawi (Manzi, Trop Med Int Health, 2005)– 96% accepted test– 45% of HIV+ and 34% of babies received SD-NVP– Infant to follow-up 81% by 6-months
Need to improve referral
• Improve counseling?– Activists recruited to follow mothers (planned)
• Reduce stigma?– Community mobilization– Partner testing
• Decentralize care services?– pMTCT sites with on-site HIV clinic: ~70% referred– CD4 testing (started in pMTCT sites 7/06)– Clinical services (i.e. HAART)
Problem 2: High loss of TB patients
• 2004-2005, TB sites in Beira city– Few TB patients tested for HIV at local VCT (opt-in)
• New TB patients enrolled ~ 250/mo• TB patients tested for HIV ~20/mo
– ~8% of estimated TB-HIV patients enrolled into care at HIV clinic*
• Operational questions:– Will opt-out ↑ HIV testing?– Will opt-out ↑ HIV treatment?
* Micek, MA, Integrating TB and HIV Care in Mozambique: Lessons from an HIV Clinic in Beira. CORE TB/HIV Case Study, The CORE Group, Washington DC, September 2004.
Possible solution: Change testing & care for patients in TB treatment
Old system
TB patient treated at TB center
Referred to VCT center for HIV testing
Referred to HIV clinic for:
HIV counselingTreatment of OIs
CTX proph.HAART
If HIV+
Continue at TB clinic for: TB treatment
New system
TB patient treated at TB center
“Opt-out” HIV testing at TB centerRotating VCT counselors
TB nurses
Referred to HIV clinic for:
HIV counselingTreatment of OIs
HAART
If HIV+
Continue at TB clinic for:
HIV counselingTB treatmentCTX proph.
Initial results
• Implemented in 6 TB facilities in Beira city, Sep 05
• Indicators collected using routine data systems
• First 7mo (Sep 05 – Mar 06)– 1,290 patients tested for HIV
• ~60% of all TB patients – 916 (71%) HIV-positive
• Additional ~20% already knew status
– 834 (91%) received CTX proph.– 504 (55%) registered at HIV clinic– 128 (14%) started HAART
• 25% of those arriving to the HIV clinic
• High acceptance from patients, TB staff and VCT counselors
How to improve referral?
• Better counseling?
• Streamline treatment of TB patients at HIV clinic?
• Decentralize more HIV services to TB sites?
• CD4 counts• HAART
OR Center in Beira, Mozambique• Collaboration between MOH,
UW, HAI
• Support OR activities in central Mozambique– Agenda development
• Involve policy personnel– Technical support
• Protocol development• Study management• Analysis of results
– Training– IRB review (future)
Other examples of OR
• Improve follow-up at HIV care facilities• Evaluate decentralization of HIV services to
primary health care– Follow-up– Quality of care
• Improve HAART adherence– mDOT– Community-based treatment supporters
• Support human resource development– Expand mid-level provider responsibilities– Plan health worker allocation– Retain health care workers
Thank you