211-CaBAMiquine One Dose Malaria Treatment?

This week, Aebhric O'Kelly is joined by Jason Jarvis, a former US Army Special Forces medic, tropical medicine educator, and researcher, for a practical discussion of malaria management in remote and resource-limited environments. Jason reviews the malaria parasite life cycle and explains why understanding the liver and blood stages is important when selecting treatment. The discussion covers current management with artemether–lumefantrine (Coartem) for uncomplicated malaria and IV artesunate for severe disease.Prevention remains essential. Jason discusses bed nets, repellents and chemoprophylaxis, including Malarone, doxycycline and mefloquine, along with the advantages and adverse effects of each.The centrepiece of the episode is cabamiquine–pyronaridine. Jason discusses the recent Phase 2a research and two particularly exciting possibilities: single-dose treatment and potential activity against multiple stages of the malaria parasite. If subsequent trials support these findings, this could significantly simplify malaria treatment, particularly in remote settings where adherence to multi-dose regimens can be difficult. Jason also emphasises that cabamiquine remains investigational and requires further clinical evaluation. The conversation also explores antimalarial resistance, G6PD considerations, R21 and RTS,S malaria vaccines, and the importance of antimicrobial stewardship.Finally, Jason brings the discussion back to the remote medic: prevent mosquito bites, ensure chemoprophylaxis is taken, carry appropriate contingency treatment and have a realistic diagnostic plan. The episode closes with a discussion of microscopy, malaria rapid diagnostic tests (RDTs), and clinical diagnosis when neither is available.00:00 – Jason Jarvis Returns: Tropical medicine and infectious-disease education.02:00 – What Is Malaria?: Understanding the parasite.04:30 – The Malaria Life Cycle: Mosquito, liver and blood stages.07:00 – Treating Malaria Today: Current antimalarial therapy.08:10 – Coartem or IV Artesunate?: Uncomplicated versus severe malaria.09:15 – Preventing Malaria: Bed nets, repellents and mosquito avoidance.10:00 – Chemoprophylaxis: Malarone, doxycycline and mefloquine.11:15 – The Remote Medic's Malaria Kit: Prevention and contingency treatment.13:30 – Mefloquine and the Nightmares: Benefits and neuropsychiatric effects.16:15 – Introducing Cabamiquine: A potential new antimalarial.17:30 – The Phase 2a Trial: Early clinical evidence.20:30 – Could One Dose Treat Malaria?: The potential for single-dose treatment.21:15 – The Resistance Problem: Protecting new antimalarials.22:15 – Why One Dose Matters: Potential benefits in remote settings.23:00 – Targeting Multiple Parasite Stages: Potential liver and blood-stage activity.24:00 – Cabamiquine and Primaquine: Implications for liver-stage treatment.25:30 – What About G6PD?: An important unanswered question.26:15 – The Future of Malaria Treatment: Could treatment become considerably simpler?27:10 – Malaria Vaccines: R21 and RTS,S.28:40 – Antimalarial Resistance: Lessons from Southeast Asia.30:00 – Advice for the Remote Medic: Practical preparation for malaria.32:30 – Diagnosing Malaria in the Field: Microscopy and diagnostic planning.34:15 – Choosing a Malaria RDT: HRP2 and pLDH testing.35:30 – No RDT, No Microscope: Clinical diagnosis and presumptive treatment.37:00 – Final Thoughts: Key lessons for austere clinicians.