Phase 1b to Assess Safety, Tolerability, Pharmacokinetic Profile, and Antimalarial Activity of Single Doses of Co-administered OZ439and PQP Against Early Plasmodium Falciparum Blood Stage Infection in Healthy Adult Volunteers
A single-centre Phase 1b study to assess the safety, tolerability, pharmacokinetic profile, and antimalarial activity of single doses of coadministered artefenomel (OZ439) and piperaquine phosphate (PQP) against early Plasmodium falciparum blood stage infection in healthy adult volunteers.
A Proof-of-concept Study to Assess the Effect of (+)-SJ000557733 (SJ733) Against Early Plasmodium Falciparum Blood Stage Infection in Healthy Participants
This is a single-centre, open-label, study using induced blood stage malaria (IBSM) infection to characterize the activity of (+)-SJ000557733 or SJ733 for short, against early Plasmodium falciparum blood stage infection. The study will be conducted in two cohorts (n=8 per cohort). The anticipated efficacious dose range is expected to be within a range of 125 to 600 mg. The dose used in the first cohort was determined on the basis of the safety and PK data generated in the FIM study (NCT02661373) currently ongoing in United States (US) and will be 150 mg. Depending on the pharmacodynamics data (effect of SJ733 on parasitaemia) obtained from this first cohort, the dose in Cohort 2 may be adjusted but will not exceed 600 mg. Based on the PK from all three cohort from the FIM study, the median estimated dose to obtain the target SJ733 AUC of 13,000 (ug hr/L) is 370 mg. The dose of cohort 2 (≤600mg) is intended to provide further concentration-response information in the human challenge model.
For Cohort 2 only, a second dose of SJ733 may be administered at peak gametocytaemia to assess if SJ733 can reduce gametocytes and subsequent infectivity to mosquitoes (a washout of
15 days post initial SJ733 treatment will be observed). Depending on the data obtained from the first two cohorts, there may be a subsequent cohort, with the investigated dose of SJ733 to be determined by the Sponsor and Principal Investigator (PI) and endorsed by the Safety Review Team. Should this third dose be investigated, a substantial amendment including preliminary data from the first two cohorts will be submitted to the HREC for approval.
A Single Centre, Two-part, Phase I Study to Investigate the Safety, Tolerability and Pharmacokinetic Profile of Ascending Oral Doses of MMV390048 and Its Antimalarial Activity Against Plasmodium Falciparum in Healthy Adult Subjects
Pharmacodynamic profiling will also be studied to characterize the effects of MMV390048 on P. falciparum clearance kinetics in healthy subjects using the Induced Blood Stage Malaria (IBSM) challenge model to determine the minimum inhibitory concentration of MMV390048 for P. falciparum (Part B).
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