i have previously discussed the bizarre origin of ‘magic bullets’ as a phrase used positively and aspirationally in public health – as well as the folly it represents: relying on a single approach to a public health problem rather than doing multiple, hopefully coordinated, activities.*
my feeling is that something silver-bullety is going on right now in discussions about addressing malaria treatment and parasite resistance to that treatment.
is a big push — both to wisely spend malaria-treatment resources and to stave off parasite resistance to ACTs (artemisinin-based combination therapies, the current WHO-recommended first-line treatment for uncomplicated
malaria**) — towards using rapid diagnostic testing (RDTs); further, towards coming up with incentives for people to choose a treatment commensurate with those test results (and to incentivize
drug vendors to encourage clients to choose treatments that correspond with the diagnosis).
diagnosis is awesome. those issues need attention. but…
there are other big components in effectively treating malaria and fighting resistance that seem to be getting too little attention because they lack a fancy acronym and cool technology aspect? because they are unsexy? and/or because they are hard to do and measure?
in any case, counterfeiting and improper dosing and usage of ACTs are also important issues and i just don’t hear them getting the same buzz.
first, whether it is the public sector or the private sector that ultimately delivers the drug to an end-user, ‘health systems strengthening’ needs to include increasing government (or private?) monitoring, testing, and regulatory — pharmaco-vigilance — capacity to test drugs and check prices at port and mid-way through the supply chain, not just with the front-line workers. companies like sproxil offer one way to approach this problem, though monitoring and regulation seems like the sort of thing you might want a state to be able to do.
second, just because good drugs get to front-line workers, it doesn’t mean the end user is getting the right drug for his/her body weight. but that’s actualized access: affordable, available, acceptable, adaptable, AND USED. there’s evidence that workers with even limited training can make the right decisions about diagnosis and weight-class (including here and here).
but there is not a lot of evidence that most front-line workers possess this information, say, via regular government trainings. certainly my experience in northern ghana suggests that many vendors do not know about weight classes for drugs (preferring, if anything, to assign treatment by age) these private vendors are a major interface with the population seeking treatment for fever.
i recently heard someone promote pediatric formulations – syrups or enemas – to help guide vendors and users toward the right dosing decision even without understanding weight-classes (‘syrups are for kids’ is a relatively easy message). this seemed like very sage advice from shunmay yeung.
third, even though ACTs are only a 3-day (6-time) course of meds, people don’t finish them for all kinds of reasons.**** i was surprised at this problem when i first started looking at malaria after much more work on behavior around TB and chronic diseases – it seemed like such a short treatment course! but, it turns out a lot of people (including ex-pats!!! looking at you, JoT) don’t finish their malaria treatment course: like, 30% of people, in some endemic countries. there have been efforts at addressing this, for example here and again here, using follow-up text messaging. but, again, this just doesn’t seem prominent on the malaria agenda.
the last mile isn’t just getting affordable drugs into remote areas: it’s about getting good, affordable, and appropriate drugs in the right amounts into the bodies of the people who need and want them.
i have become quite fond of the ‘silver buckshot‘ metaphor to use in place of ‘silver bullets.’ in this case, treating malaria and protecting the effectiveness of malaria treatments requires looking at diagnosis, pharmaco-vigilance, and appropriate dosing and use. (and that’s without opening the prevention can of worms!)
keeping this bigger, balanced, and un-acronymed package of items on the malaria treatment agenda is difficult — but i hope it can be done.
*recognizing, of course, the problems with ‘planning’ and ‘coordination’ without allowing for ‘searching’ in terms of design and implementation.
**”it’s complicated” may be less-than-ideal as a relationship status on facebook — but it is definitely no good as a status update on your malaria.
***also, there is the tricky follow-up question of what to do if someone tests negative for malaria (moreover, what else to do if someone tests positive for malaria, given the potential for co-morbidities; these are topics for another time).
****too many pills, feeling better, saving the pills for the next illness, feeling nausiated from the pills, and so on