Updated May 2026 · ClinicalTrials.gov
Primaquine for Vivax Malaria in G6PD Intermediate and Deficient Cases.
Primaquine for Vivax Malaria in G6PD Intermediate and Deficient Cases. (NCT07468513) is a Phase 4 interventional studying Vivax Malaria and G6PD Deficiency, sponsored by Menzies School of Health Research. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.
About This Trial
A non randomized observation study that is aiming to assess the safety and efficacy of high dose primaquine (1mg/kg per day over 7 days) among patients with intermediate (30-70%) G6PD activity and the safety and efficacy of weekly primaquine among patients who are g6Pd deficient (\<30% activity)
What Stage of Research Is This?
Phase 4 studies happen after a treatment has been approved by the FDA. They monitor long-term safety, real-world effectiveness, and any rare side effects that only emerge in larger populations over longer periods. Phase 4 results sometimes lead to label changes, additional warnings, or — rarely — withdrawal of approval.
This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.
Target enrollment of 100 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Vivax Malaria subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.
Who May Be Eligible (Plain English)
These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.
Original Eligibility Criteria
View original clinical language
Treatments Being Tested
Patients with G6PD enzyme activities between 30 and <70% of the AMM will be treated with schizontocidal treatment plus high dose primaquine 1mg/kg/day for 7 days
Primaquine 1mg/kg/day for 7 days
Patients with G6PD enzyme activities <30% of the AMM will be treated with schizontocidal treatment plus 8 weekly primaquine (0.75mg/kg dose).
8 weekly Primaquine (0.75mg/kg dose).
Locations (4)
Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.
How to Talk to Your Doctor About This Trial
Bring the printable summary of this trial — including the NCT ID (NCT07468513), the sponsor (Menzies School of Health Research), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.
Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.
Authoritative Sources
The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.
Frequently Asked Questions
What is the NCT07468513 clinical trial studying?
A non randomized observation study that is aiming to assess the safety and efficacy of high dose primaquine (1mg/kg per day over 7 days) among patients with intermediate (30-70%) G6PD activity and the safety and efficacy of weekly primaquine among patients who are g6Pd deficient (\<30% activity) The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.
Who can participate in NCT07468513?
Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.
How do I contact the trial site for NCT07468513?
Contact information for this trial may be available directly on the ClinicalTrials.gov record. Click "View on ClinicalTrials.gov" in the sidebar for the official source. Always discuss any potential trial with your doctor before contacting the study site.
Is participating in a clinical trial safe?
Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.
Where can I verify the data on this page?
Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.
How This Page Is Built
Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.
Source: ClinicalTrials.gov API v2 record for NCT07468513. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT07468513. Data: ClinicalTrials.gov."
Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.
Last updated 2026-05-08 · Data from ClinicalTrials.gov.