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Tafenoquine trial FAQs

What is tafenoquine?

Tafenoquine is an anti-malarial medication that is related closely to primaquine. In clinical studies it has been shown to successfully prevent and treat malaria infections, especially those infections that recur after leaving a malarious area (relapsing malaria).

Is tafenoquine related to mefloquine?

No, tafenoquine is not related to mefloquine and acts quite differently in the body. Tafenoquine is closely related to primaquine, which has been used for malaria prevention in the ADF for many years. The names sound similar because most medications used against malaria end in “quine” but otherwise they are completely different compounds.

What are the side effects of tafenoquine?

Common side effects include headache and gastrointestinal upset (nausea, vomiting, diarrhoea).  Uncommonly, people taking tafenoquine have developed a benign eye condition (vortex keratopathy) which resolves completely after the medication is stopped.  Other medicines may also cause this condition. Vision is not affected and it is only seen if actively looked for by specialist eye examination.

Does tafenoquine have neurological side effects?

Tafenoquine has not been shown to cause neurological side effects. Gastro-intestinal upset has been the most common side effect reported.

Why did the ADF test tafenoquine in its personnel?

Malaria is a deadly disease and a threat to ADF personnel. Most of our recent deployments have been to malarious areas in the Asia-Pacific region and the Middle East.  Over time, anti-malarial medications lose their effectiveness as the malaria parasites become resistant to them. New medications need to be developed to ensure the ADF has effective protection against malaria.

Does AMI conduct drug trials ethically?

Approval from the Australian Defence Human Research Ethics Committee (ADHREC) is required before any drug trial can begin.  AMI conducts drug trials in accordance with national guidelines issued by the National Health and Medical Research Council (NHMRC) and the Therapeutic Goods Administration (TGA), with the study protocol approved by ADHREC.

ADHREC is a properly constituted human research ethics committee registered with the NHMRC. More information about ADHREC is available from Australian Defence Human Research Ethics Committee site.

Were ADF members forced to participate in clinical trial of tafenoquine?

Participation in the AMI studies involving tafenoquine was voluntary. ADF members were provided with comprehensive information packs, were fully briefed and given the opportunity to ask questions. A point of emphasis was that whatever their decision, whether to participate or not, there would be not negative impact on them, there would be no detriment to them. That means, if they chose not to participate, there would be no negative consequences to their career or future health care.

Once fully informed, those who wanted to participate in the studies signed a consent form .  The participants were also made aware that they could withdraw from the study at any time without detriment. 

Some ADF members chose not to participate in the study. These members still needed to take an anti-malarial medication for their protection during the deployment in accordance with extant health policy.

Defence is aware of allegations from some personnel who feel that their participation was not voluntary. These allegations remain under investigation by the Inspector General of the Australian Defence Force (IGADF).

Is tafenoquine registered for use in Australia?

Tafenoquine is not yet registered in Australia but it has been used in multiple stages of clinical studies in order to gather the information necessary to present to the registration authorities (eg Therapeutic Goods Administration).  It is being actively progressed for registration in the USA through the Food and Drug Administration.

Can former soldiers and ADF members involved in the trials request and access their medical records from the AMI and Department of Defence?

Serving and former ADF members who participated in the AMI trials can access both their case records from the trial and their Defence health records.

Participants seeking their trial case records can make a request in writing to Joint Health Command at  They will need to provide their full name, date of birth service/PMKEYS number and contact details (telephone, email and postal address).  It may take several weeks to provide the documents as they have to be located and retrieved from the AMI archives and checked for completeness. These documents will be released by the Commander Joint Health.

Serving ADF members who want to access their health records can make a request through their supporting Defence Health Centre.

Ex-serving members who want to access their personnel and health records need to submit a request to the Defence Archives Centre on More information is available from Defence Service Records site.

Can the Department of Defence confirm that the medical records of those involved in drug trials conducted by the AMI will not be deleted?

Health records of ADF members are managed in accordance with the Archives Act 1983 and Defence records management policy. Health records of ADF members are retained for at least 100 years after their date of birth. Case records for trial participants are held at AMI and will not be destroyed. Records related to significant medical research activities conducted in the ADF are retained permanently.

Where can I get more information of tafenoquine?

Recent publications regarding tafenoquine are available online via the links below: