Phase IIa Proof of Concept Study of M5717-Pyronaridine in Adults and Adolescents With Acute Uncomplicated Plasmodium Falciparum Malaria (CAPTURE 1)

The purpose of this study is to evaluate the safety, efficacy, and pharmacokinetic of the combination M5717 plus pyronaridine in participants with acute uncomplicated Plasmodium falciparum malaria. Pyramax (Artesunate/Pyronaridine) will act as an internal control providing reference safety data and a benchmark for the efficacy evaluation.

Inclusion Criteria:Participants with microscopic confirmation of acute uncomplicated Plasmodium falciparum using Giemsa-stained thick and thin filmP. falciparum parasitemia of 1,000 to 50,000 asexual parasites/microliter of blood in Part A and P. falciparum parasitemia of >1,000 to <= 150,000 asexual parasites/microliter of blood in Part BAxillary temperature >= 37.5 degree Celsius or tympanic temperature >= 38.0 degree Celsius (use as per Coronavirus disease 2019 (COVID-19) protocols at the site [only at Screening]), or history of fever during the previous 24 hours (at least documented verbally)The Investigator confirms that each participant agrees to use appropriate contraception and barriers, if applicableCapable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the Informed Consent Form (ICF) and this protocolOther protocol defined inclusion criteria could applyExclusion Criteria:Mixed Plasmodium infections as per thin film microscopy resultsSigns and symptoms of severe malaria according to World Health Organisation (WHO) 2021 criteria (WHO 2021)Known liver abnormalities, liver cirrhosis (compensated or decompensated), known active or history of hepatitis B or C (testing not required), underlying hepatic injury or known severe liver disease, known gallbladder or bile duct disease, acute or chronic pancreatitis, or severe malnutritionKnown history or evidence of clinically significant disorders such as, cardiovascular, respiratory (including active tuberculosis), hepatic, renal, gastrointestinal, immunological [including known Human Immunodeficiency Virus-Acquired Immunodeficiency Syndrome (HIV-AIDS)], neurological (including auditory), endocrine, infectious, malignancy, psychiatric, history of convulsions, or other abnormality (including head trauma)Previous treatment with pyronaridine as part of a combination therapy during the last 3 monthsPrior antimalarial therapy or antibiotics with antimalarial activity within a minimum of their 5 plasma half-lives (or within 4 weeks of Screening if half-life is unknown)Participants taking medications prohibited by the protocolOther protocol defined exclusion criteria could apply