Jean de Dieu IRAGENA, TB laboratory Strengthening Unit (TBL ...
Transcript of Jean de Dieu IRAGENA, TB laboratory Strengthening Unit (TBL ...
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Jean de Dieu IRAGENA, TB laboratory Strengthening Unit (TBL), Stop TB Dept, WHO Geneva
The 16th Core Group Meeting of the TB/HIV Working Group May 26-28, 2010_Almaty, Kazakhstan
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Contents
TARGETS, OBJECTIVES, PHASES
A PARTNERSHIP MODEL
COUNTRY UPDATES
BACKGROUND
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Started in January 2009
• Initial projectUNITAID Board approval: April 2008, 16 countries; ~74,000 patientsTime frame: 2009 – 2011
• Expansion projectUNITAID Board approval: May 200911 additional countries; ~56,000 additional patientsTime frame: 2009 – 2013
• Revised Project Plan to cover 27 countries, ~129,000 patients, time frame 2009 - 2013
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WORLDWIDE COMMITMENT
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• Policies, norms international standards
• Participate in lab assessments
• Provide long-term, on-site monitoring
• Develop indicators and tools for M&E
Funding for essential instruments, reagents, supplies
Logistics and supplies
Human Resources
(Guidelines
Technology transfer)
Infrastructure Quality Assurance
Linked referral systems and reporting
• Negotiate with partners to ensure lowest prices
• Ensure customer support in place
• Share know-how from product development process
• Provide long-term, on-site mentoring for technology transfer
• Coordinate and manage procurement and delivery
• With FIND, engage industry to ensure affordability and sustained price decreases
• Collaborate with WHO pre-qualification to include diagnostics
A UNIQUE PARTNERSHIP MODEL
Global Laboratory Initiative
Global DrugFacility
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WHAT IS INCLUDED IN THE PROJECT?
Initial and continuous assessment of TB laboratories and TB labs networks
Procurement:Equipment for liquid culture/speciation and line probe assayReagents and consumables for project length
Training:Quality assurance and data management Liquid culture and LPABiosafety and waste management
Follow-up of the laboratories
Overall project management
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WHAT IS NOT INCLUDED IN THE PROJECT
Premises for culture:Need for a negative pressure roomNeed for a strong biosafety level
Premises for molecular biology3 different rooms are required for such analysis
Equipment:Non-specific equipment is not included in the project, which needs to be covered by other financial sources
Extra partnerships need to be established
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a
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Lesoth
o
Ethiop
ia
HaïtiCôte d’IvoireMyanmarIndia
KazakhstanAzerbaïdjanSwazilandDR Congo
CameroonMoldovaGeorgiaBelarusUzbekistan, regionalLesotho, regionalEthiopia, regionalTajikistanKyrgyzstanSenegalPeruZambiaUgandaTanzaniaKenya
Djibouti
2010
2009
Uzbekistan
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Awasa
Inauguration March 2009
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WHO POLICY UPDATE FOR TB DIAGNOSIS
• Current policy guidance• Implementation of policies• Policy framework at country level• Diagnostic algorithms
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CURRENT POLICY RECOMMENDATIONS
• 2007– Liquid medium for
culture and DST– Rapid speciation
• 2008– Line probe assays for
rapid MDR-TB screening
– 2nd line DST to be used in a phased manner
Available at: http://www.who.int/tb/dots/laboratory/policy/en/print.html
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IMPLEMENTATION OF POLICIES
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POLICY FRAMEWORK AT COUNTRY LEVEL
• Local epidemiology (TB, HIV, MDR-TB)• Priorities for case detection• Local laboratory capacity and networks• Local laboratory human resources and
skills base• Local treatment policies for MDR-TB• Financial resources
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DIAGNOSTIC ALGORITHMS
Starts with• Screening strategies for suspects• Microscopy services as entry point
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Positive Negative
MICROSCOPY(ZN or Fluorescence)
CULTURE(Solid or Liquid)
No result
DRUG SUSCEPTIBILITY TESTING-1st LINE(Solid or Liquid)
No resultPositive Negative
MDR
DRUG SUSCEPTIBILITY TESTING-2nd LINE(Solid or liquid)
XDR
Susceptible No result
Not XDR, resistant other drugs Susceptible
Not MDR, resistant other drugs
No result
Dis
tric
t N
RL/
regi
onal
SRL/
NR
L
IDENTIFICATION (SPECIATION)(Conventional/Commercial)
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Positive Negative
MICROSCOPY(ZN or Fluorescence)
CULTURE(Solid or Liquid)
No result
DRUG SUSCEPTIBILITY TESTING-1st LINE(Solid or Liquid)
No resultPositive Negative or no result
MDR
DRUG SUSCEPTIBILITY TESTING-2nd LINE(Solid or liquid)
XDR
Susceptible No result
Not XDR, resistant other drugs Susceptible
Not MDR, resistant other drugs
No result
Dis
tric
t N
RL/
regi
onal
SRL/
NR
L
IDENTIFICATION (SPECIATION)(Conventional/Commercial)
LINE PROBE ASSAY
BS
L1B
SL1
BS
L3B
SL3
LED MICROSCOPY
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Solid culture
6-8w
1st line DST
3-4w
2nd line DST
3-4w
Microscopy
24h
Liquid culture
2-3w
1st line DST
1-3w
2nd line DST
1-2w
Microscopy
24h
Microscopy
24h
Line probe assay
24h
MDR-TB diagnosis using solid culture and DST
MDR-TB diagnosis using liquid culture and DST
2nd line DST
1-2w
1st line DST
1-2w
MDR-TB diagnosis using line probe assay, liquid culture and DST
Line probe assay
24h
+
- 2nd line DST
1-2w
1st line DST
1-3w
Liquid culture
2-3w
MDR-TB diagnosisafter 9 to 12 weeks
MDR-TB diagnosisafter 1 to 2 days
MDR-TB diagnosisafter 3 to 5 weeks
MDR-TB diagnosisafter 3 to 5 weeks
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Solid culture
6-8w
1st line DST
3-4w
2nd line DST
3-4w
Microscopy
24h
Liquid culture
2-3w
1st line DST
1-3w
2nd line DST
1-2w
Microscopy
24h
Microscopy
24h
LPA
24h
XDR-TB diagnosis using solid culture and DST
XDR-TB diagnosis using liquid culture and DST
2nd line DST
1-2w
1st line DST
1-2w
XDR-TB diagnosis using line probe assay, liquid culture and DST
LPA
24h
+
- 2nd line DST
1-2w
1st line DST
1-3w
Liquid culture
2-3w
XDR-TB diagnosisafter 12 to 16 weeks
XDR-TB diagnosisafter 4 to 9 weeks
2nd line DST
3-4w
2nd line DST
1-3w
2nd line DST
1-3w
Liquid culture
2-3w
2nd line DST
1-3w2nd line DST
1-3w
XDR-TB diagnosisafter 4 to 9 weeks
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