Revisiting Recommendations on Drug Resistance from Past Studies
-
Upload
cgdev -
Category
Health & Medicine
-
view
633 -
download
3
description
Transcript of Revisiting Recommendations on Drug Resistance from Past Studies
Revisiting Recommendations
Jessica Pickett Drug Resistance Working Group
March 7, 2008
2
Mapping Out Emerging Solution Areas
Cataloguing Recent Recommendations (2000-Present)
Examples of Current Proposals
Working Group ‘Best & Wildest’ Ideas
Group Discussion:What’s worked, what hasn’t, and where we can make a difference.
3
Preliminary Sources
WHO “Global Strategy for the Containment of Antimicrobial Resistance” (2001; reaffirmed in 2005 and 2007 WHA Resolutions)
APUA “Antibiotic resistance: synthesis of recommendations by expert policy groups” (2001)
MSH Drug Management Program’s “Interventions and strategies to improve the use of antimicrobials in developing countries” (2001)
Institute of Medicine “Microbial Threats to Health: Emergence, Detection, and Response” (2003)
IOM “Saving Lives, Buying Time: Economics of Malaria Drugs in an Age of Resistance” (2004)
Disease Control Priorities Project (2006) The Lancet
Gupta, Rajesh. et al. “Scaling up treatment for HIV/AIDS: lessons learned from multi-drug resistant tuberculosis.” (2004)
Outterson, Kevin. “Will longer antimicrobial patents improve global health?” (2007)
Clinical Microbiology and Infection Power, Edward. “Impact of antibiotic restrictions: the pharmaceutical
perspective” (2006)
4
Key Considerations
Does the recommendation address the underlying incentives?
Are there entrenched interests or political hurdles?
Is there a clear chain of accountability for action?
Others?
5
Tripartite Framework
6
Recommendations I: Health Systems
7
Regulation
1. Establish an effective national registration scheme for dispensing outlets and create economic incentives for the appropriate use of antimicrobials
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Poor/weak regulation and enforcement
Target: National governments
Medium-term action required, with the potential for immediate impact
8
Regulation
2. Limit the availability of (most) antimicrobials to prescription-only status and link to regulations regarding the sale, supply, dispensing and allowable promotional activities; institute mechanisms to facilitate compliance by practitioners and systems to monitor compliance.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Poor/weak regulation and enforcement
Target: National governments
Medium-term action required, with the potential for immediate impact
9
Regulation
3. Ensure that only antimicrobials meeting international quality, efficacy and safety standards are granted marketing authorization, and introduce legal requirements for manufacturers to track data on antimicrobial distribution.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Poor/weak regulation and enforcement
Target: National governments and industry
Medium-term action required
10
Regulation
4. Consider centralizing the regulation of product procurement, distribution and use for specific diseases (as in the case of the Green Light Committee for TB).
Gupta, Rajesh. et al. “Scaling up treatment for HIV/AIDS: lessons learned from multi-drug resistant tuberculosis.” The Lancet.
Driver: Poor/weak regulation and supply chains
Target: International agencies
11
Regulation
5. Establish international inspection teams to conduct valid assessments of pharmaceutical manufacturing plants and support an international approach to the control of counterfeit antimicrobials.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Substandard drug quality
Target: International agencies
Medium-term action required
12
Regulation
Other Working Group Ideas:
Give Interpol responsibility for tracking counterfeit drugs
Create a SWAT team of technical collaborators and emergency funds to respond to resistance “hot spots” comprised of WHO, CDC and public health collaborators in developing countries.
13
Treatment Protocols & Guidelines
1. Establish, maintain and implement updated national Standard Treatment Guidelines and develop a corresponding Essential Medicines List to ensure the accessibility and quality of these drugs.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Inappropriate/inconsistent treatment; drug access
Target: National governments and industry
Current status: Ongoing on a country-by-country basis
14
Treatment Protocols & Guidelines
2. Tailor treatment strategies to limit the development of resistance by employing combination therapies (particularly fixed-dose combinations), cycling strategies, drug heterogeneity, and directly observed therapy.
Disease Control Priorities in Developing Countries
Driver: Biological factors
Target: National governments
Current status: Strategies are currently recommended on a country-by-country, disease-by-disease basis, with the exception of international support for ACTs for malaria and DOTS for TB.
15
Treatment Protocols & Guidelines
3. Enhance immunization coverage and other disease preventive measures to reduce the need for antimicrobials
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Biological factors
Target: National governments
Long-term action required, with major potential for impact
16
Treatment Protocols & Guidelines Other Working Group Ideas:
Reduce susceptibility to other drug resistant infections in HIV patients by improving nutrition programs through donor programs, complemented by social messaging about the importance of nutrition as a way to boost immunity.
Integrate treatment for other neglected tropical diseases with treatment for HIV/AIDS, malaria and TB to create incentives to increase resource pool for treatment and capacity building, reduce over- and mistreatment for co-morbidity. Include capacity-building for national drug regulatory agencies (as a cross-cutting intervention) in areas like post-marketing surveillance.
Avoid global first line treatments wherever possible in favor of having localized treatment guidelines to reduce overall drug use, including technical support for drug use and resistance surveillance and an understanding of the correct resistance threshold when treatment guidelines should be changed.
Develop regional cycling campaigns for a given pathogen and create price neutrality to individual countries for all medicines for that agent providing they adhere to the cycling program as guided by a regional drug resistance surveillance system (coordinating across diseases if necessary).
17
Clinical Environment
1. Establish programs for nosocomial infection control and ensure that all hospitals have access
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Poor disease control & hospital-acquired infections
Target: Hospitals & clinics
Current status: Ongoing on a country-by-country basis
18
Clinical Environment
2. Establish effective hospital therapeutics committees to oversee and monitor antimicrobial use; link these findings to resistance and disease surveillance data.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Hospital-acquired infections, low surveillance
Target: Hospitals & clinics
19
Surveillance & Diagnostic Capacity
1. Designate or develop reference microbiology lab facilities to coordinate effective epidemiologic surveillance of AMR among common pathogens in the community, hospitals & other health facilities. Ensure access to these lab services matched to the level of the affiliated hospital for the performance and quality assurance of appropriate diagnostic tests, microbial identification, antimicrobial susceptibility tests, and timely reporting.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Poor diagnosis and surveillance capacity
Target: National governments, hospitals & lab facilities
20
Surveillance & Diagnostic Capacity
2. Ensure that laboratory data are recorded in a database and used to produce clinical and epidemiological surveillance reports of resistance patterns. Adapt and apply WHO model systems for AMR surveillance and ensure data flow to a national task force, authorities responsible for national STGs and drug policy, infection control programs and prescribers.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Low surveillance
Target: National governments; laboratories
21
Surveillance & Diagnostic Capacity
3. Establish national surveillance for key infectious diseases and syndromes according to country priorities, and link this information to other surveillance data.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Low surveillance
Target: National governments; laboratories
22
Surveillance & Diagnostic Capacity
4. Consider information on antimicrobial use and resistance from surveillance as global public goods to which all governments should contribute. Establish surveillance networks (in coordination with NGOs, professional societies and international agencies) with trained staff and adequate infrastructures to provide information for the optimal containment of resistance.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Low surveillance
Target: National governments & international agencies
Current status: Ongoing (see the information paper for more details). Examples include WARN (malaria) and Resnet (HIV/AIDS)
Immediate priority for attention, with high impact over the long term
23
Surveillance
Other Working Group Ideas:
Global network for regional and/or sub-regional reference labs and analytic “centers of excellence” to support and coordinate surveillance of drug resistance with financial support from donors, pharma, and developing countries as joint ventures. (These centers could also serve other disease prevention and control functions as well.)
Donor funding for pharmacovigilance
24
Information Disclosure & Best Practices
1. Establish an international database of potential research funding agencies with an interest in antimicrobial resistance; create and strengthen programs for researchers to improve the design, preparation and conduct of research to contain AMR.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Poor information sharing
Target: Academics, donors and international agencies
25
Other Working Group Ideas:
Voluntary multi-company disclosure of resistance events, with an accompanying tracking system.
A “resistance burden footprint” on all drugs dispersed (like a carbon footprint) to let each actor at least know the true social cost.
Create a rating or rankings system for national or donor programs based on the steps they have taken to minimize resistance to HIV/AIDS and other diseases.
Donors should enforce adherence and compliance measures as part of their grant-funding criterion and strictly adhere to it (particularly for ARVs). This could also be used for implementers to target poor performing facilities that need to improve adherence. Also track CD4 count and viral load monitoring for HIV/AIDS.
Information Disclosure & Best Practices
26
Which recommendations have been successful?
Which ones haven’t?
Why not?
Health Systems
27
Recommendations II: Behavior
28
Prescriber Behavior
1. Educate prescribers & dispensers on: appropriate antimicrobial use and containment of resistance for specific drugs; disease prevention (immunization, etc.) and infection control; and factors that may influence prescribing habits (economic incentives, promotional activities, industry inducements, etc.)
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Patient-provider interaction
Target: Prescribers and dispensers
29
Prescriber Behavior
2. Promote targeted under- and post-graduate training programs for all health workers to improve the accurate diagnosis and management of common infections
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Patient-provider interaction
Target: Prescribers and dispensers
30
Prescriber Behavior
3. Supervise & support clinical practices (esp. diagnostic and treatment strategies) to improve antimicrobial use, and/or audit prescribing and dispensing practices using peer group or external standards to provide feedback on appropriate prescribing
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Patient-provider interaction; quality of care
Target: Prescribers and dispensers
31
Prescriber Behavior
4. Develop and use guidelines and treatment algorithms for appropriate antimicrobial use; and empower formulary managers to limit antimicrobial use to the prescription of a pre-selected range of antimicrobials
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Patient-provider interaction
Target: Prescribers and dispensers
32
Prescriber Behavior
5. Link professional registration requirements for prescribers and dispensers to requirements for training and continuing education
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Provider education; inappropriate prescribing patterns
Target: Prescribers and dispensers; national governments
Related ideas: Voluntary accreditation; regulation
33
Prescriber Behavior
6. Control and monitor pharmaceutical company promotional activities within the clinical environment and ensure that such activities have educational benefits for prescribers. Identify and eliminate the use of economic incentives that encourage inappropriate prescribing practices.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Inappropriate prescribing patterns
Target: Prescribers/dispensers, pharma industry
34
Prescriber Behavior
7. Require pharmaceutical companies to comply with national and international codes of practice on promotional activities (including direct-to-consumer advertising), and institute systems for monitoring compliance with legislation on promotional activities.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Inappropriate prescribing patterns
Target: Pharmaceutical companies, national governments
35
Prescriber Behavior
Other Working Group Ideas:
Diagnostics at the point of care required of clinical staff (to create expectation to use lab tests), which would require the support of academic, diagnostic manufacturers, labs and medical professionals.
36
Patient Behavior
1. Educate patients & the general community on: the appropriate use of and adherence to antimicrobials; the importance of measures to prevent infection (immunization, handwashing, vector control, etc.); measures to reduce infection transmission; and suitable alternatives to self-initiated antimicrobial treatment
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Cultural preferences & beliefs
Target: Patients
37
Patient Behavior
Other Working Group Ideas:
Pay patients for evidence that they have appropriately complied.
38
Which recommendations have been successful?
Which ones haven’t?
Why not?
Behavior
39
Recommendations III: Technology
40
Diagnostics Development
1. Creating better diagnostic tests to determine the type of infection and susceptibility status before antimicrobials are administered.
IOM Microbial Threats to Health: Emergence, Detection, and Response
Driver: Poor diagnosis and overtreatment
Target: Pharmaceutical/medical device industry
41
Diagnostics Development
Other Working Group Ideas:
A subsidization mechanism for rapid diagnostic tests, with a particular focus on developing rapid diagnostic tests for febrile illness that detects all diseases (malaria, pneumonia, etc.) in one kit.
Development of new multiplexed diagnostics at point of care that is used by drug sellers, primary health care workers, and is attached to first line drug product and sold with it. This would require cooperation between at least one drug and multiple diagnostic innovators.
Stimulate generic production of viral load and CD4 reagents.
Develop a diagnostic chip for use at point of care that identifies the infecting pathogen and its susceptibility profile; while patients/health systems pay for drugs, the diagnostics would be free.
42
Drug Financing
1. Encourage cooperation between industry, academia and governments to search for new drugs and vaccines via public-private partnerships; focus on drug development programs that seek to optimize treatment regimens with regard to safety, efficacy and the risk of selecting resistance organisms.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Inadequate R&D
Target: Pharmaceutical industry
Current status: Ongoing, with examples ranging from MMV to FIND
43
Drug Financing
2. Provide incentives for industry to invest in R&D for new therapeutic agents with novel modes of action to treat and control resistant infections, and seek innovative partnerships to improve access to existing drugs (including drug donation programs where appropriate).
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Inadequate R&D & low access to existing products
Target: Pharmaceutical industry, donors
44
Drug Financing
3. Subsidize combination therapies at the global level to stave off resistance, engage private sector supply chains, and drive manufacturers of monotherapies out of the market (malaria-specific)
IOM Saving Lives, Buying Time: Economics of Malaria Drugs in an Age of Resistance (2004)
Driver: Substandard products; poor access
Target: Pharmaceutical industry, donors, distributors
Current status: Recently taken forward under the auspices of the new Access to Medicines Facility-malaria.
45
Drug Financing
4. Issue tax credits on R&D investments for new antimicrobials
Power, Edward. “Impact of antibiotic restrictions: the pharmaceutical perspective,” Clinical Microbiology and Infection.
Driver: Inadequate R&D
Target: Pharmaceutical industry, donors
Related proposals: Kerry vaccine legislation (including tax credits); other “pull” mechanisms such as advance market commitments for vaccines or FDA priority review vouchers
46
Drug FinancingOther Working Group Ideas:
Provide a mechanism to sell tax losses related to R&D for start up bio tech companies as a means of developing currency in exchange for the time to develop a new product. And that those R&D taxes credits could be exchanged and sold for cash to companies who had a need for tax loses.
Allow pharmaceutical companies to defer taxes on profits that would be put into an R&D fund to study new solutions to targeted diseases and that those funds could only be spent on new research on the targeted diseases that were determined by a priority rating.
Promote R&D related to resistance reversal technologies that can be used to a) rehabilitate the safest and cheapest treatments, and b) protect new or second-line medicines. Funding for these anti-resistance drugs might include permeability enhancers, plasmid expellers and other drugs which may have no activity but return resistant strains to susceptibility.
Use global subsidies to assure private sector access (buidling on the AMFm).
Donors should create and implement “readiness standards,” where no more drugs will be funded until x, y, and z systems are in place.
47
Patents & Regulatory Processes
1. Consider establishing or utilizing fast-track marketing authorization for safe new agents, and/or using an orphan drug scheme where available and applicable.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Inadequate R&D
Target: Pharmaceutical industry, donors
Related proposals: EMEA Article 58
48
Patents & Regulatory Processes
2. Make available time-limited exclusivity for new formulations or indications for use of antimicrobials, and align IPR to provide suitable patent protection for new agents and vaccines.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Inadequate R&D
Target: Pharmaceutical industry, donors
49
Patents & Regulatory Processes
3. Extend patent protection for eligible new antibiotics to increase incentives for manufacturer R&D.
Power, Edward. “Impact of antibiotic restrictions: the pharmaceutical perspective,” Clinical Microbiology and Infection. (2006)
Driver: Inadequate R&D
Target: Pharmaceutical industry, donors
Related Ideas: Patent duration based on resistance levels (see Mechoulan, Stephane. “Market Structure and Communicable Diseases.”)
50
Patents & Regulatory Processes
4. Guaranteed orders or national formulary inclusion for an antibiotic proven to meet a certain medical need (non-exclusive or time limited).
Power, Edward. “Impact of antibiotic restrictions: the pharmaceutical perspective,” Clinical Microbiology and Infection. (2006)
Driver: Inadequate R&D
Target: Pharmaceutical industry, donors
51
Patents & Regulatory Processes
5. Compensate patent owners for conservation efforts (e.g. temporarily removing a drug from the market or severely restricting its use for a specific duration to stave off resistance) by direct payments, a full patent buyout, or patent extensions for the off-market period.
Outterson, Kevin. “Will longer antimicrobial patents improve global health?” The Lancet. (2007)
Driver: Pharmaceutical profit incentives
Target: Pharmaceutical industry, donors
Related recommendation: Voluntary product withdrawal of monotherapies for malaria (advocated by WHO in 2006)
52
Patents & Regulatory Processes
6. Compensate pharmaceutical companies for valuable antimicrobial innovation by setting high reimbursement prices.
Outterson, Kevin. “Will longer antimicrobial patents improve global health?” The Lancet. (2007); Power, Edward. “Impact of antibiotic restrictions: the pharmaceutical perspective,” Clinical Microbiology and Infection. (2006)
Driver: Inadequate R&D
Target: Pharmaceutical industry, donors
53
Patents & Regulatory Processes
Other Working Group Ideas:
Create a World Medicines Agency (independent of WHO) to approve new drugs for safety and efficacy that are intended for use in developing countries, using standards for clinical trials and documentation appropriate to and reflective of health care in those countries. The incentives would encourage targeted drug development at lower cost and by more mid-size manufacturers.
Exchange the patent rights on an existing drug with a new generic drug that is needed for a high priority disease (similar to a wild card patent).
Create a global mechanism to delay/restrict marketing approval of an important new antibiotic (modeled on U.S. Schedule III Narcotics); this would include compensation to the patent-holder
54
Which recommendations have been successful?
Which ones haven’t?
Why not?
Technology
55
Opportunities for Impact
Where should the Working Group focus?
And what can we do differently?
56
ANNEX A
Recommendations:External Factors
57
Advocacy
1. Encourage international collaboration between governments, NGOs, professional societies & international agencies to: recognize the importance of AMR; present consistent, simple and accurate messages regarding the importance of antimicrobial use, resistance and its containment; and implement joint strategies.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Low political prioritization
Target: National governments
58
Advocacy
2. Make the containment of AMR a national priority by creating an intersectoral task force (incl. health professionals, agriculturalists, industry, government, media & civil society) to raise awareness about AMR, organize data collection and oversee local task forces.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Low political prioritization
Target: National governments
59
Advocacy
3. Allocate national resources to promote the implementation of resistance containment activities, and develop indicators to monitor and evaluate their impact.
WHO Global Strategy for the Containment of Antimicrobial Resistance
Driver: Low political prioritization
Target: National governments
60
Agricultural Use of Antimicrobials
1. Require obligatory prescriptions for antimicrobials to control disease in food animals; develop guidelines for veterinarians to reduce overuse and misuse of antimicrobials; and create national systems to monitor antimicrobial usage in animals
WHO Global Principals for the Containment of Antimicrobial Resistance in Animals Intended for Food (2002)
Driver: Agricultural & veterinary use
Target: Agricultural sector
Note: Outside the Working Group’s scope
61
Agricultural Use of Antimicrobials
2. Terminate or phase out the use of antimicrobials for growth promotion if they are also used for the treatment of humans.
WHO Global Principals for the Containment of Antimicrobial Resistance in Animals Intended for Food (2002)
Driver: Agricultural & veterinary use
Target: Agricultural sector
Current status: Banned in Europe in 2006
Note: Outside the Working Group’s scope
62
Agricultural Use of Antimicrobials
3. Introduce pre-licensing safety evaluation of antimicrobials with consideration of potential resistance to human drugs; monitor resistance to identify emerging health problems and take corrective actions to protect human health
WHO Global Principals for the Containment of Antimicrobial Resistance in Animals Intended for Food (2002)
Driver: Agricultural & veterinary use
Target: Agricultural sector
Note: Outside the Working Group’s scope
63
ANNEX B
APUA Synthesis Report
64
65
66
67
68
69