Artemisinin-induced parasite dormancy: a plausible mechanism for treatment failure
2011

Artemisinin-Induced Dormancy in Malaria Parasites

Sample size: 2500 publication Evidence: moderate

Author Information

Author(s): Andrea Codd, Franka Teuscher, Dennis E. Kyle, Qin Cheng, Michelle L. Gatton

Primary Institution: Queensland Institute of Medical Research

Hypothesis

Could dormancy in malaria parasites explain the high rates of treatment failure following artemisinin monotherapy?

Conclusion

The study suggests that artemisinin-induced dormancy may contribute to treatment failures in malaria.

Supporting Evidence

  • The model predicted clinical failure rates of up to 67% after a single treatment with artemisinin.
  • Dormancy rates were found to significantly affect treatment failure rates.
  • The study's findings align with reported treatment failure rates in field trials.

Takeaway

Some malaria parasites can go to sleep when treated with artemisinin, which might make them come back later and cause illness again.

Methodology

A computer simulation model was used to simulate the effects of artemisinin treatment on malaria parasites, incorporating dormancy rates.

Limitations

The study is theoretical and requires further in vivo confirmation of dormancy.

Participant Demographics

Malaria naïve hosts were used in the simulations.

Digital Object Identifier (DOI)

10.1186/1475-2875-10-56

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