Page last updated: 2024-10-15

ferroquine

Description

ferroquine: an antimalarial agent; structure in first source [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID140118553
MeSH IDM0456809

Synonyms (10)

Synonym
185055-67-8
ssr97193
ssr-97193
8d81js19et ,
ssr 97193
ferroquine
ferrochloroquine
7-chloro-n-[[2-[(dimethylamino)methyl]cyclopenta-2,4-dien-1-yl]methyl]quinolin-4-amine;cyclopenta-1,3-diene;iron(2+)
ferroquina
ferroquinum

Research Excerpts

Overview

Ferroquine (FQ) is a 4-aminoquinoline antimalarial which contains a quinoline nucleus similar to chloroquine, but a novel ferrocenic group in its side chain. It shows good activity in vitro and in animal models, but development of cross-resistance is of concern.

ExcerptReference
"Ferroquine is a derivative of chloroquine with antimalarial properties."( Ferroquine and its derivatives: new generation of antimalarial agents.
Baig, U; Hun, LT; Jameel, E; Mumtazuddin, S; Wani, WA, 2015
)
"Ferroquine is a new combination partner for fast-acting ACTs such as artesunate."( Ferroquine and artesunate in African adults and children with Plasmodium falciparum malaria: a phase 2, multicentre, randomised, double-blind, dose-ranging, non-inferiority study.
Abdallah, AM; Bonkian, LN; Bouyou-Akotet, M; Cantalloube, C; Coulibaly, B; Din-Bell, C; Djeriou, E; Held, J; Kimutai, R; Koiwai, K; Kombila, M; Kremsner, PG; Lell, B; Mordmüller, B; Moulero, B; Nahum, A; Otieno, L; Otsyula, N; Salazar, CL; Sié, A; Siribie, M; Sirima, SB; Supan, C; Ter-Minassian, D; Tinto, H; Waitumbi, J, 2015
)
"Ferroquine (SSR97193) is a candidate anti-malarial currently undergoing clinical trials for malaria. "( A Phase II pilot trial to evaluate safety and efficacy of ferroquine against early Plasmodium falciparum in an induced blood-stage malaria infection study.
Baker, M; Cantalloube, C; Djeriou, E; Griffin, P; Hooft van Huijsduijnen, R; Marquart, L; McCarthy, JS; Möhrle, JJ; O'Rourke, P; Rückle, T; Ter-Minassian, D, 2016
)
"Ferroquine is a ferrocenic derivative of chloroquine with proven anti-malarial activity against chloroquine-resistant and -sensitive P."( Phase I randomized dose-ascending placebo-controlled trials of ferroquine--a candidate anti-malarial drug--in adults with asymptomatic Plasmodium falciparum infection.
Dal-Bianco, MP; Issifou, S; Kombila, M; Kremsner, PG; Lell, B; Matsiegui, PB; Missinou, MA; Mombo-Ngoma, G; Ospina Salazar, CL; Ramharter, M; Supan, C; Ter-Minassian, D, 2011
)
"Ferroquine (FQ) is a 4-aminoquinoline antimalarial which contains a quinoline nucleus similar to chloroquine, but a novel ferrocenic group in its side chain. "( Insights into the mechanism of action of ferroquine. Relationship between physicochemical properties and antiplasmodial activity.
Basilico, N; Biot, C; Boyce, M; Brocard, JS; Egan, TJ; Forfar-Bares, I; Maciejewski, LA; Nowogrocki, G; Olliaro, P; Taramelli, D,
)
"Ferroquine is a derivative of chloroquine and shows good activity in vitro and in animal models, but the development of cross-resistance is of concern."( In vitro activity of ferroquine (SAR97193) is independent of chloroquine resistance in Plasmodium falciparum.
Dietz, K; Kreidenweiss, A; Kremsner, PG; Mordmüller, B, 2006
)
"Ferroquine (SSR97193) is a new 4-aminoquinoline antimalarial active against chloroquine resistant and sensitive P."( In vitro activity of ferroquine (SSR 97193) against Plasmodium falciparum isolates from the Thai-Burmese border.
Barends, M; Jaidee, A; Khaohirun, N; Nosten, F; Singhasivanon, P, 2007
)

Effects

ExcerptReference
"Ferroquine has a potent ex vivo effect on P."( Plasmodium vivax susceptibility to ferroquine.
Barends, M; Jaidee, A; Kaewpongsri, S; Leimanis, ML; Nosten, F; Phyo, AP; Renia, L; Russell, B; Sriprawat, K; Suwanarusk, R, 2010
)
"Ferroquine (SSR97193) has been shown to be a promising antimalarial, both on laboratory clones and on field isolates. "( In vitro metabolism of ferroquine (SSR97193) in animal and human hepatic models and antimalarial activity of major metabolites on Plasmodium falciparum.
Biot, C; Bourrié, M; Brocard, J; Daher, W; Dive, D; Fabre, G; Fraisse, L; Guillou, F; Khalife, J; Klieber, S; Maffrand, JP; Meunier, V; Pelinski, L; Sadoun, F, 2006
)

Toxicity

ExcerptReference
" Safety was determined by recording adverse events and monitoring clinical laboratory assessments during the course of the study."( A Phase II pilot trial to evaluate safety and efficacy of ferroquine against early Plasmodium falciparum in an induced blood-stage malaria infection study.
Baker, M; Cantalloube, C; Djeriou, E; Griffin, P; Hooft van Huijsduijnen, R; Marquart, L; McCarthy, JS; Möhrle, JJ; O'Rourke, P; Rückle, T; Ter-Minassian, D, 2016
)

Pharmacokinetics

ExcerptReference
" This study characterizes its pharmacokinetic properties."( Pharmacokinetics of ferroquine, a novel 4-aminoquinoline, in asymptomatic carriers of Plasmodium falciparum infections.
Biot, C; Dal-Bianco, MP; Filali-Ansary, A; Issifou, S; Kremsner, PG; Lell, B; Mazuir, F; Mombo-Ngoma, G; Ospina Salazar, CL; Ramharter, M; Supan, C; Ter-Minassian, D, 2012
)

Dosage Studied

ExcerptReference
" PK/PD modelling resulted in a predicted minimal parasiticidal concentration of 20 ng/mL, and the single dosing tested in this study was predicted to maintain an exposure above this threshold for 454 h (37."( A Phase II pilot trial to evaluate safety and efficacy of ferroquine against early Plasmodium falciparum in an induced blood-stage malaria infection study.
Baker, M; Cantalloube, C; Djeriou, E; Griffin, P; Hooft van Huijsduijnen, R; Marquart, L; McCarthy, JS; Möhrle, JJ; O'Rourke, P; Rückle, T; Ter-Minassian, D, 2016
)
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (55)

TimeframeStudies, This Drug (%)All Drugs %
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's13 (23.64)29.6817
2010's32 (58.18)24.3611
2020's10 (18.18)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials7 (12.07%)5.53%
Reviews9 (15.52%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other42 (72.41%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Clinical Trials (6)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Evaluation of the Effect of Artemisinin-based Combination Therapies on Urinary Schistosoma Haematobium When Administered for the Treatment of Malaria Co-infection[NCT04264130]Phase 254 participants (Actual)Interventional2018-07-31Completed
Parallel Group, Double-blind, Randomized Study Assessing the Efficacy, Safety and Pharmacokinetic Profiles of Ferroquine Associated With Artesunate and a Single-blind Dose Level of Ferroquine Alone in a 3-day Treatment of Uncomplicated Malaria Due to Plas[NCT00988507]Phase 2440 participants (Anticipated)Interventional2009-10-31Terminated(stopped due to Company decision to modify the ferroquine development strategy; discontinuation not due to safety or activity unexpected findings)
An Open Label, 4 Escalating Dose, Randomized Multicentre Study Evaluating the Safety and Activity of Ferroquine Associated With Artesunate Versus a Positive Calibrator (Amodiaquine Associated With Artesunate) in African Adult Patients With Uncomplicated M[NCT00563914]Phase 1/Phase 272 participants (Actual)Interventional2007-10-31Completed
A Randomized, Open Label, Parallel-group, Single Dose Regimen, Phase 2a Study, to Investigate the Clinical and Parasiticidal Activity and the Pharmacokinetics of 3 Dose Levels of Artefenomel (OZ439) Given in Combination With Ferroquine (FQ) and FQ Alone, [NCT03660839]Phase 2140 participants (Actual)Interventional2018-09-11Completed
A Randomized, Double-blind, Phase IIb Study to Investigate the Efficacy, Safety, Tolerability and Pharmacokinetics of a Single Dose Regimen of Ferroquine (FQ) With Artefenomel (OZ439) in Adults and Children With Uncomplicated Plasmodium Falciparum Malaria[NCT02497612]Phase 2377 participants (Actual)Interventional2015-07-25Terminated(stopped due to All treatment arms met the futility criteria for efficacy during the pre-planned interim analysis, therefore the study was stopped.)
Phase Ib, Single-center, Randomized, Study to Determine Safety, Tolerability, and Pharmacokinetics of Different Orally Administered Regimens of the Combination ZY19489-Ferroquine in Adult Asymptomatic Plasmodium Falciparum Carriers[NCT05911828]Phase 136 participants (Anticipated)Interventional2023-07-01Not yet recruiting
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

TrialOutcome
NCT02497612 (25) [back to overview]Parasite Clearance Time: African >5 Years PP Population
NCT02497612 (25) [back to overview]Parasite Clearance Time: Asian PP Population
NCT02497612 (25) [back to overview]Percentage of Participants With Crude Adequate Clinical and Parasitological Response at Day 28: African <=5 Years PP28 Population
NCT02497612 (25) [back to overview]Percentage of Participants With Crude Adequate Clinical and Parasitological Response at Day 63: African <=5 Years PP63 Population
NCT02497612 (25) [back to overview]Percentage of Participants With Polymerase Chain Reaction (PCR)-Adjusted Adequate Clinical and Parasitological Response (ACPR) at Day 28: African <=5 Years Per Protocol Population at Day 28 (PP28)
NCT02497612 (25) [back to overview]Percentage of Participants With Crude Adequate Clinical and Parasitological Response at Day 42: African <=5 Years PP42 Population
NCT02497612 (25) [back to overview]Percentage of Participants With Polymerase Chain Reaction-adjusted Adequate Clinical and Parasitological Response at Day 28: African >5 Years Per Protocol Population at Day 28 (A5PP28)
NCT02497612 (25) [back to overview]Percentage of Participants With Polymerase Chain Reaction-adjusted Adequate Clinical and Parasitological Response at Day 28: Asian PP Population at Day 28 (APP28)
NCT02497612 (25) [back to overview]Percentage of Participants With Polymerase Chain Reaction-adjusted Adequate Clinical and Parasitological Response at Day 42: African <=5 Years PP Population at Day 42 (PP42)
NCT02497612 (25) [back to overview]Percentage of Participants With Polymerase Chain Reaction-adjusted Adequate Clinical and Parasitological Response at Day 63: African <=5 Years PP Population at Day 63 (PP63)
NCT02497612 (25) [back to overview]Pharmacokinetics (PK): Maximum Observed Plasma Concentration (Cmax) of Artefenomel
NCT02497612 (25) [back to overview]Pharmacokinetics: Area Under the Curve From Time 0 to Day 28 (AUC0-day28) of Ferroquine
NCT02497612 (25) [back to overview]Pharmacokinetics: Area Under the Curve From Time 0 to Infinity (AUC0-inf) of Artefenomel
NCT02497612 (25) [back to overview]Pharmacokinetics: Maximum Observed Plasma Concentration of Ferroquine (Cmax)
NCT02497612 (25) [back to overview]Time to Re-emergence
NCT02497612 (25) [back to overview]Time to Recrudescence
NCT02497612 (25) [back to overview]Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and Adverse Event of Special Interest (AESI)
NCT02497612 (25) [back to overview]Parasite Reduction Ratio (PRRlog10) at 24 Hours and 48 Hours: African <=5 Years PP Population
NCT02497612 (25) [back to overview]Fever Clearance Time: Asian PP Population
NCT02497612 (25) [back to overview]Parasite Reduction Ratio at 24 Hours and 48 Hours: African >5 Years PP Population
NCT02497612 (25) [back to overview]Parasite Reduction Ratio at 24 Hours and 48 Hours: Asian PP Population
NCT02497612 (25) [back to overview]Fever Clearance Time (FCT): African <=5 Years PP Population
NCT02497612 (25) [back to overview]Fever Clearance Time: African >5 Years PP Population
NCT02497612 (25) [back to overview]Time to Re-infection
NCT02497612 (25) [back to overview]Parasite Clearance Time (PCT): African <=5 Years PP Population
NCT03660839 (21) [back to overview]Parasite Clearance Rate
NCT03660839 (21) [back to overview]Parasite Clearance Time (PCT)
NCT03660839 (21) [back to overview]Percentage of Participants With Crude Adequate Clinical and Parasitological Response at Day 28
NCT03660839 (21) [back to overview]Percentage of Participants With Polymerase Chain Reaction (PCR)-Corrected Adequate Clinical and Parasitological Response (ACPR) at Day 28 (ACPR28)
NCT03660839 (21) [back to overview]Pharmacokinetics: Area Under the Concentration Curve (AUC) Form Time 0 to Infinity (AUC0-inf]) of Artefenomel
NCT03660839 (21) [back to overview]Pharmacokinetics: Plasma Concentration at 168 Hours Post-dose (C168h) of Artefenomel
NCT03660839 (21) [back to overview]Time Elapsed Below the Limit of Quantification (LOQ) of Parasitemia
NCT03660839 (21) [back to overview]Time to Re-emergence
NCT03660839 (21) [back to overview]Time to Re-infection
NCT03660839 (21) [back to overview]Time to Recrudescence
NCT03660839 (21) [back to overview]Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and Adverse Event of Special Interest (AESI)
NCT03660839 (21) [back to overview]Observed Parasite Reduction Ratio (PRR) at 24 Hours, 48 Hours, and 72 Hours
NCT03660839 (21) [back to overview]Parasitemia: Change From Baseline in Number of Parasites Per Microliter of Blood at 6, 12, 18, 24, 30, 36, 48, 72, 96, 120, 144 and 168 Hours
NCT03660839 (21) [back to overview]Pharmacokinetics (PK): Concentration of OZ439 in Plasma
NCT03660839 (21) [back to overview]Pharmacokinetics: Area Under the Concentration Curve Form Time 0 to Day 28 (AUC0-28) of Ferroquine and Its Active Metabolite SSR97213
NCT03660839 (21) [back to overview]Pharmacokinetics: Area Under the Concentration Curve From Time 0 to Infinity of Ferroquine and Its Active Metabolite SSR97213
NCT03660839 (21) [back to overview]Pharmacokinetics: Concentration of FQ and Its Active Metabolite SSR97213 in Blood
NCT03660839 (21) [back to overview]Pharmacokinetics: Plasma Concentration at 168 Hours Post-dose of Ferroquine and Its Active Metabolite SSR97213
NCT03660839 (21) [back to overview]Time to 50% and 99% Parasite Reduction
NCT03660839 (21) [back to overview]Pharmacokinetics: Maximum Observed Plasma Concentration (Cmax) of Artefenomel
NCT03660839 (21) [back to overview]Pharmacokinetics: Maximum Observed Plasma Concentration of Ferroquine and Its Active Metabolite SSR97213

Parasite Clearance Time: African >5 Years PP Population

"PCT was defined as the time (in hours) from the start of study drug administration until the time of first negative blood film (no asexual parasites). This first negative film was confirmed by a second negative film which was taken >=6 to <=12 hours of the first film. Kaplan-Meier method was used for the estimation. Here, overall number of participants analyzed=participants who were included in the analysis of below reported results which consisted of both, who had the event, plus those who were censored." (NCT02497612)
Timeframe: From the start of study drug administration up to the time of the first negative film (up to Day 63)

Interventionhours (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)24.0
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)24.3
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)24.3
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)27.2

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Parasite Clearance Time: Asian PP Population

"PCT was defined as the time (in hours) from the start of study drug administration until the time of first negative blood film (no asexual parasites). This first negative film was confirmed by a second negative film which was taken >=6 to <=12 hours of the first film. Kaplan-Meier method was used for the estimation. Here, overall number of participants analyzed=participants who were included in the analysis of below reported results which consisted of both, who had the event, plus those who were censored." (NCT02497612)
Timeframe: From the start of study drug administration up to the time of the first negative film (up to Day 63)

Interventionhours (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)82.0
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)75.1
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)79.8
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)72.2

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Percentage of Participants With Crude Adequate Clinical and Parasitological Response at Day 28: African <=5 Years PP28 Population

ACPR was defined as negative parasitemia at Day 28, irrespective of AT, in participants not meeting any criteria of ETF: DS or SM at Day 1, 2 or 3 in presence of parasitemia; or Day 2 parasite count > Day 0 irrespective of AT; or parasitemia at Day 3 with AT >=37.5°C; or parasite count on Day 3 >=25% on Day 0, or LCF: DS/ SM in presence of parasitemia between Day 4 and 28; or presence of parasitemia and AT >=37.5°C between Day 4 and 28 or, LPF: presence of parasitemia between Day 7 and 28 and AT <37.5°C or having rescue therapy for malaria. PCR-adjusted ACPR applied to recrudescence (appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline), excluding participants with re-infection, whereas crude ACPR does not distinguish re-infection (new clone of parasite) or recrudescence. (NCT02497612)
Timeframe: Day 28

Interventionpercentage of participants (Number)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)49.3
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)71.6
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)76.2
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)87.1

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Percentage of Participants With Crude Adequate Clinical and Parasitological Response at Day 63: African <=5 Years PP63 Population

Crude ACPR was defined as negative parasitemia at Day 63, irrespective of AT, in participants not meeting any criteria of ETF: DS or SM at Day 1, 2 or 3 in presence of parasitemia; or Day 2 parasite count > Day 0 irrespective of AT; or parasitemia at Day 3 with AT >=37.5°C; or parasite count on Day 3 >=25% on Day 0, or LCF: DS/ SM in presence of parasitemia between Day 4 and 63; or presence of parasitemia and AT >=37.5°C between Day 4 and 63 or, LPF: presence of parasitemia between Day 7 and 63 and AT <37.5°C or having rescue therapy for malaria. PCR-adjusted ACPR applied to recrudescence (appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline), excluding participants with re-infection, whereas crude ACPR did not distinguish re-infection (new clone of parasite) or recrudescence. (NCT02497612)
Timeframe: Day 63

Interventionpercentage of participants (Number)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)35.3
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)46.2
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)57.6
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)58.3

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Percentage of Participants With Polymerase Chain Reaction (PCR)-Adjusted Adequate Clinical and Parasitological Response (ACPR) at Day 28: African <=5 Years Per Protocol Population at Day 28 (PP28)

"ACPR: negative parasitemia at Day 28, irrespective of axillary temperature(AT), in participants not meeting any criteria of early therapy failure (ETF):Danger signs (DS)/severe malaria (SM) at Day 1, 2 or 3 in presence of parasitemia; or Day 2 parasite count >Day 0 irrespective of AT; or parasitemia at Day 3 with AT >=37.5 degree Celsius (°C); or parasite count on Day 3>=25 percent (%) on Day 0, or late clinical failure(LCF):DS/ SM in presence of parasitemia between Day 4 and 28; or presence of parasitemia and AT>=37.5°C between Day 4 and 28, or late parasitological failure (LPF):presence of parasitemia between Day 7 and 28 and AT<37.5°C or having rescue therapy for malaria. PCR-adjusted ACPR applied to recrudescence (appearance of asexual parasites after clearance of initial infection with genotype identical to that present at Baseline), excluding participants with re-infection. In data table, overall number of participants analyzed=participants evaluable for this outcome measure." (NCT02497612)
Timeframe: Day 28

Interventionpercentage of participants (Number)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)78.4
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)85.0
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)89.5
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)91.7

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Percentage of Participants With Crude Adequate Clinical and Parasitological Response at Day 42: African <=5 Years PP42 Population

ACPR was defined as negative parasitemia at Day 42, irrespective of AT, in participants not meeting any criteria of ETF: DS or SM at Day 1, 2 or 3 in presence of parasitemia; or Day 2 parasite count > Day 0 irrespective of AT; or parasitemia at Day 3 with AT >=37.5°C; or parasite count on Day 3 >=25% on Day 0, or LCF: DS/ SM in presence of parasitemia between Day 4 and 42; or presence of parasitemia and AT >=37.5°C between Day 4 and 42 or, LPF: presence of parasitemia between Day 7 and 42 and AT <37.5°C or having rescue therapy for malaria PCR-adjusted ACPR applied to recrudescence (appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline), excluding participants with re-infection, whereas crude ACPR did not distinguish re-infection (new clone of parasite) or recrudescence. (NCT02497612)
Timeframe: Day 42

Interventionpercentage of participants (Number)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)39.1
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)50.8
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)61.0
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)68.9

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Percentage of Participants With Polymerase Chain Reaction-adjusted Adequate Clinical and Parasitological Response at Day 28: African >5 Years Per Protocol Population at Day 28 (A5PP28)

"ACPR: negative parasitemia at Day 28, irrespective of AT, in participants not meeting any criteria of ETF: DS or SM at Day 1, 2 or 3 in presence of parasitemia; or Day 2 parasite count > Day 0 irrespective of AT; or parasitemia at Day 3 with AT >=37.5°C; or parasite count on Day 3 >=25% on Day 0, or LCF: DS/ SM in presence of parasitemia between Day 4 and 28; or presence of parasitemia and AT >=37.5°C between Day 4 and 28, or LPF: presence of parasitemia between Day 7 and 28 and AT <37.5°C or having rescue therapy for malaria. PCR-adjusted ACPR was applied to recrudescence (appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline), excluding participants with re-infection. Here, in the data table, overall number of participants analyzed=participants evaluable for this outcome measure." (NCT02497612)
Timeframe: Day 28

Interventionpercentage of participants (Number)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)72.7
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)100
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)100
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)90.0

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Percentage of Participants With Polymerase Chain Reaction-adjusted Adequate Clinical and Parasitological Response at Day 28: Asian PP Population at Day 28 (APP28)

"ACPR: negative parasitemia at Day 28, irrespective of AT, in participants not meeting any criteria of ETF: DS or SM at Day 1, 2 or 3 in presence of parasitemia; or Day 2 parasite count > Day 0 irrespective of AT; or parasitemia at Day 3 with AT >=37.5°C; or parasite count on Day 3 >=25% on Day 0, or LCF: DS/ SM in presence of parasitemia between Day 4 and 28; or presence of parasitemia and AT >=37.5°C between Day 4 and 28, or LPF: presence of parasitemia between Day 7 and 28 and AT <37.5°C or having rescue therapy for malaria. PCR-adjusted ACPR was applied to recrudescence (appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline), excluding participants with re-infection. Here, in the data table, overall number of participants analyzed=participants evaluable for this outcome measure." (NCT02497612)
Timeframe: Day 28

Interventionpercentage of participants (Number)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)25.0
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)25.0
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)40.0
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)20.0

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Percentage of Participants With Polymerase Chain Reaction-adjusted Adequate Clinical and Parasitological Response at Day 42: African <=5 Years PP Population at Day 42 (PP42)

"ACPR: negative parasitemia at Day 42, irrespective of AT, in participants not meeting any criteria of ETF: DS or SM at Day 1, 2 or 3 in presence of parasitemia; or Day 2 parasite count > Day 0 irrespective of AT; or parasitemia at Day 3 with AT >=37.5°C; or parasite count on Day 3 >=25% on Day 0, or LCF: DS/ SM in presence of parasitemia between Day 4 and 42; or presence of parasitemia and AT >=37.5°C between Day 4 and 42, or LPF: presence of parasitemia between Day 7 and 42 and AT <37.5°C or having rescue therapy for malaria. PCR-adjusted ACPR was applied to recrudescence (appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline), excluding participants with re-infection. Here, in the data table, overall number of participants analyzed=participants evaluable for this outcome measure." (NCT02497612)
Timeframe: Day 42

Interventionpercentage of participants (Number)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)69.8
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)81.8
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)84.0
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)87.7

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Percentage of Participants With Polymerase Chain Reaction-adjusted Adequate Clinical and Parasitological Response at Day 63: African <=5 Years PP Population at Day 63 (PP63)

"ACPR: negative parasitemia at Day 63, irrespective of AT, in participants not meeting any criteria of ETF: DS or SM at Day 1, 2 or 3 in presence of parasitemia; or Day 2 parasite count > Day 0 irrespective of AT; or parasitemia at Day 3 with AT >=37.5°C; or parasite count on Day 3 >=25% on Day 0, or LCF: DS/ SM in presence of parasitemia between Day 4 and 63; or presence of parasitemia and AT >=37.5°C between Day 4 and 63, or LPF: presence of parasitemia between Day 7 and 63 and AT <37.5°C or having rescue therapy for malaria. PCR-adjusted ACPR was applied to recrudescence (appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline), excluding participants with re-infection. Here, in the data table, overall number of participants analyzed=participants evaluable for this outcome measure." (NCT02497612)
Timeframe: Day 63

Interventionpercentage of participants (Number)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)64.1
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)76.7
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)81.8
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)87.2

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Pharmacokinetics (PK): Maximum Observed Plasma Concentration (Cmax) of Artefenomel

Cmax is the maximum observed plasma concentration of artefenomel. (NCT02497612)
Timeframe: 2, 4, 6, 12, 24, 48, 72 and 672 hours post dose

Interventionnanograms per milliliter (Geometric Mean)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)1072
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)936.7
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)771.8
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)797.8

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Pharmacokinetics: Area Under the Curve From Time 0 to Day 28 (AUC0-day28) of Ferroquine

Area under the plasma concentration versus time curve from time 0 to Day 28 (i.e. 672 hours). (NCT02497612)
Timeframe: 2, 4, 6, 8, 12, 24, 48, 168, 336 and 672 hours postdose

Interventionmicrograms*hour per milliliter (Geometric Mean)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)14.92
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)22.56
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)33.84
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)46.4

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Pharmacokinetics: Area Under the Curve From Time 0 to Infinity (AUC0-inf) of Artefenomel

Area under the plasma concentration versus time curve from time zero to infinity. (NCT02497612)
Timeframe: 2, 4, 6, 12, 24, 48, 72 and 672 hours post dose

Interventionmicrograms*hour per milliliter (Geometric Mean)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)14.24
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)12.41
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)9.621
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)9.605

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Pharmacokinetics: Maximum Observed Plasma Concentration of Ferroquine (Cmax)

Cmax is the maximum observed plasma concentration of Ferroquine. (NCT02497612)
Timeframe: 2, 4, 6, 12, 24, 48, 72 and 672 hours post dose

Interventionnanograms per milliliter (Geometric Mean)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)148.1
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)222.8
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)350
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)467.6

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Time to Re-emergence

"Time to re-emergence (in days) was defined as the time to appearance of asexual parasites after clearance of initial infection irrespective of genotype. Participants with no event were censored at the time of study completion, premature study discontinuation, including switch to established anti-malarial treatment or start of any other treatment with anti-malarial activity, whichever was earliest. Re-emergence was confirmed by microscopy (positive blood smear). Kaplan-Maier method was used for estimation. Here, overall number of participants analyzed=participants who were included in the analysis of below reported results which consisted of both, who had the event, plus those who were censored." (NCT02497612)
Timeframe: Up to Day 63

Interventiondays (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)36.0
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)61.0
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)NA
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)64.0

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Time to Recrudescence

Time to recrudescence (in days) was defined as the time to appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline. Recrudescence was confirmed by PCR analysis. Kaplan-Maier method was used for estimation. (NCT02497612)
Timeframe: Up to Day 63

Interventiondays (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)NA
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)NA
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)NA
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)NA

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Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and Adverse Event of Special Interest (AESI)

An AE was defined as any untoward medical occurrence in a participant who received study drug and did not necessarily had to have a causal relationship with the treatment. SAEs were any untoward medical occurrence that resulted in any of the following outcomes: death, life-threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. TEAEs were defined as AEs that developed or worsened or became serious during on-treatment phase that was defined as the time from the start of the first dose of double-blind drug administration up to the Day 63. AE of special interest (AESI) was an AE (serious or non-serious) of scientific and medical concern specific to the Sponsor's product or program, for which ongoing monitoring and immediate notification by the Investigator to the Sponsor was required. (NCT02497612)
Timeframe: From Baseline up to Day 63

,,,
InterventionParticipants (Count of Participants)
Any TEAEAny treatment-emergent SAEAny treatment-emergent AESIAny TEAE led to treatment discontinuationAny TEAE led to death
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)8121120
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)840530
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)872820
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)854930

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Parasite Reduction Ratio (PRRlog10) at 24 Hours and 48 Hours: African <=5 Years PP Population

The PRR was calculated as the slope of the linear portion of the regression fit of logarithm parasitemia (per milliliter) versus time (in hours). The PRR24 and PRR48 was the drop-in log units over 24 and 48 hours, respectively. (NCT02497612)
Timeframe: 24 and 48 hours post dose

,,,
Interventionratio (Median)
PRR24 (log10)PRR48 (log10)
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)2.5875.174
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)2.8675.734
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)3.0116.023
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)2.3974.794

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Fever Clearance Time: Asian PP Population

"FCT was defined as the time (in hours) from start of study drug administration to the first assessment of adjusted body temperature <37.5°C, confirmed by second assessment, taken within >=6 to <=12 hours of the first. Only participants with fever (adjusted body temperature >=37.5°C present at Baseline) and did not receive paracetamol on day of study drug administration until 96 hours after study drug administration were included in FCT analysis. Participants with no event were censored at the time of study completion, premature study discontinuation, including switch to established anti-malarial treatment or start of any other treatment with anti-malarial activity, whichever was earliest. Kaplan-Meier method was used for the estimation. Here, overall number of participants analyzed=participants who were included in the analysis of below reported results which consisted of both, who had the event, plus those who were censored." (NCT02497612)
Timeframe: From the start of study drug administration up to the time of the first temperature measurement <37.5°C (up to Day 63)

Interventionhours (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)18.0
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)36.0

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Parasite Reduction Ratio at 24 Hours and 48 Hours: African >5 Years PP Population

The PRR was calculated as the slope of the linear portion of the regression fit of logarithm parasitemia (per milliliter) versus time (in hours). The PRR24 and PRR48 was the drop-in log units over 24 and 48 hours, respectively. (NCT02497612)
Timeframe: 24 and 48 hours post dose

,,,
Interventionratio (Median)
PRR24 (log10)PRR48 (log10)
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)3.0546.108
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)2.9795.957
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)4.0698.137
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)3.2886.577

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Parasite Reduction Ratio at 24 Hours and 48 Hours: Asian PP Population

The PRR was calculated as the slope of the linear portion of the regression fit of logarithm parasitemia (per milliliter) versus time (in hours). The PRR24 and PRR48 was the drop-in log units over 24 and 48 hours, respectively. (NCT02497612)
Timeframe: 24 and 48 hours post dose

,,,
Interventionratio (Median)
PRR24 (log10)PRR48 (log10)
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)1.3532.705
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)1.1672.335
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)1.1252.250
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)1.6883.377

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Fever Clearance Time (FCT): African <=5 Years PP Population

FCT was defined as the time (in hours) from start of study drug administration to the first assessment of adjusted body temperature <37.5°C, confirmed by second assessment, taken within >=6 to <=12 hours of the first assessment. Only participants with fever (adjusted body temperature >=37.5°C present at Baseline) and did not receive paracetamol on day of study drug administration until 96 hours after study drug administration were included in FCT analysis. Participants with no event were censored at the time of study completion, premature study discontinuation, including switch to established anti-malarial treatment or start of any other treatment with anti-malarial activity, whichever was earliest. Kaplan-Meier method was used for the estimation. (NCT02497612)
Timeframe: From the start of study drug administration up to the time of the first temperature measurement <37.5°C (up to Day 63)

Interventionhours (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)1.0
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)1.0
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)1.0
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)1.0

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Fever Clearance Time: African >5 Years PP Population

FCT was defined as the time (in hours) from start of study drug administration to the first assessment of adjusted body temperature <37.5°C, confirmed by second assessment, taken within >=6 to <=12 hours of the first. Only participants with fever (adjusted body temperature >=37.5°C present at Baseline) and did not receive paracetamol on day of study drug administration until 96 hours after study drug administration were included in FCT analysis. Participants with no event were censored at the time of study completion, premature study discontinuation, including switch to established anti-malarial treatment or start of any other treatment with anti-malarial activity, whichever was earliest. Kaplan-Meier method was used for the estimation. (NCT02497612)
Timeframe: From the start of study drug administration up to the time of the first temperature measurement <37.5°C (up to Day 63)

Interventionhours (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)1.0
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)1.0
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)1.5
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)2.0

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Time to Re-infection

Time to re-infection (in days) was defined as the time to appearance of asexual parasites after clearance of initial infection with a genotype that differs from that of parasites present at Baseline. Re-infection was confirmed by PCR analysis. Kaplan-Maier method was used for estimation. (NCT02497612)
Timeframe: Up to Day 63

Interventiondays (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)NA
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)NA
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)NA
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)65.0

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Parasite Clearance Time (PCT): African <=5 Years PP Population

"PCT was defined as the time (in hours) from the start of study drug administration until the time of first negative blood film (no asexual parasites). This first negative film was confirmed by a second negative film which was taken >=6 to <=12 hours of the first film. Kaplan-Meier method was used for the estimation. Here, in the data table overall number of participants analyzed=participants who were included in the analysis of below reported results which consisted of both, who had the event, plus those who were censored." (NCT02497612)
Timeframe: From the start of study drug administration up to the time of the first negative film (up to Day 63)

Interventionhours (Median)
Ferroquine (up to 400 mg) + Artefenomel (up to 800 mg)36.0
Ferroquine (up to 600 mg) + Artefenomel (up to 800 mg)36.0
Ferroquine (up to 900 mg) + Artefenomel (up to 800 mg)36.1
Ferroquine (up to 1200 mg) + Artefenomel (up to 800 mg)36.1

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Parasite Clearance Rate

Parasite clearance rate (k) is the minus slope of the natural logarithm parasitemia versus time linear relationship, after exclusion of outliers, lag phase and Tail, using the worldwide antimalarial resistance network, Parasite Clearance Estimator. (NCT03660839)
Timeframe: Up to Day 28

Intervention1 per hour (Mean)
Ferroquine 400 mg0.1956
Ferroquine 400 mg + Artefenomel 300 mg0.3609
Ferroquine 400 mg + Artefenomel 600 mg0.3962
Ferroquine 400 mg + Artefenomel 1000 mg0.3581

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Parasite Clearance Time (PCT)

PCT was defined as the time (in hours) from the start of study drug administration until the time of first negative blood film (no asexual parasites by microscopy). This first negative film was confirmed by a second negative film which was taken >=6 to <=12 hours of the first film. If the second film was performed <6 hours or >12 hours of the first film, then the parasite clearance was confirmed or invalidated by the third (thick) film following the second one, whatever the timing of this third film: If the third film was negative, then the clearance was considered confirmed and if the third film was positive, then the clearance was invalidated. Kaplan-Meier method was used for the estimation. (NCT03660839)
Timeframe: From the start of study drug administration up to the time of the first negative blood film (up to Day 28)

Interventionhours (Median)
Ferroquine 400 mg56.1
Ferroquine 400 mg + Artefenomel 300 mg30.0
Ferroquine 400 mg + Artefenomel 600 mg30.0
Ferroquine 400 mg + Artefenomel 1000 mg30.0

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Percentage of Participants With Crude Adequate Clinical and Parasitological Response at Day 28

ACPR: absence of parasitemia at Day 28, irrespective of AT, in participants not meeting any criteria of ETF: DS/SoC/SM at Day 1, 2 or 3 in presence of parasitemia, concomitant to at least 1 positive parasitemia; or parasitemia on Day 2 > Day 0 irrespective of AT; or parasitemia on Day 3 with AT >=37.5°C; or parasitemia count on Day 3 >=25% on Day 0, or LCF: DS/SM in presence of parasitemia between Day 4 and 28, concomitant to at least one positive parasitemia; or presence of parasitemia and AT>=37.5°C on Day 4 to Day 28, or LPF: presence of parasitemia between Day 7 and 28 and AT<37.5°C or having rescue therapy for malaria. PCR-corrected ACPR applied to recrudescence (appearance of asexual parasites after clearance of initial infection with genotype identical to that present at Baseline), excluding participants with re-infection, whereas crude ACPR does not distinguish reinfection (new clone of parasite) or recrudescence. (NCT03660839)
Timeframe: Day 28

Interventionpercentage of participants (Number)
Ferroquine 400 mg64.5
Ferroquine 400 mg + Artefenomel 300 mg81.8
Ferroquine 400 mg + Artefenomel 600 mg77.8
Ferroquine 400 mg + Artefenomel 1000 mg78.1

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Percentage of Participants With Polymerase Chain Reaction (PCR)-Corrected Adequate Clinical and Parasitological Response (ACPR) at Day 28 (ACPR28)

ACPR:absence of parasitemia at Day 28, irrespective of axillary temperature(AT), participants not meeting any criteria of early therapy failure(ETF):Danger signs(DS)/symptoms of complicated(SoC)/severe malaria(SM) at Day 1, 2 or 3 in presence of parasitemia, concomitant to at least 1 positive parasitemia;or parasitemia on Day 2 >Day 0 irrespective of AT;or parasitemia on Day 3 with AT>=37.5 degree Celsius (°C);or parasitemia count on Day 3 >=25 percent (%) on Day 0, or late clinical failure (LCF):DS/SM in presence of parasitemia between Day 4 and 28,concomitant to at least one positive parasitemia;or presence of parasitemia and AT>=37.5°C on Day 4 to Day 28, or late parasitological failure(LPF):presence of parasitemia between Day 7 and 28 and AT<37.5°C and without rescue therapy. PCR-corrected ACPR applied to recrudescence (appearance of asexual parasites after clearance of initial infection with genotype identical to that present at Baseline), excluding participants with reinfection. (NCT03660839)
Timeframe: Day 28

Interventionpercentage of participants (Number)
Ferroquine 400 mg80.8
Ferroquine 400 mg + Artefenomel 300 mg90.3
Ferroquine 400 mg + Artefenomel 600 mg90.9
Ferroquine 400 mg + Artefenomel 1000 mg87.1

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Pharmacokinetics: Area Under the Concentration Curve (AUC) Form Time 0 to Infinity (AUC0-inf]) of Artefenomel

"Area under the plasma concentration versus time curve from time 0 to infinity. Data for this outcome measure was not planned to be collected and analyzed for Ferroquine 400 mg arm, since artefenomel was not administered." (NCT03660839)
Timeframe: Pre-dose, 1, 2, 4, 6, 12, 24, 48, 72, 120, 168 and 336 hours post-dose

Interventionmicrograms*hour per milliliter (Geometric Mean)
Ferroquine 400 mg + Artefenomel 300 mg3.269
Ferroquine 400 mg + Artefenomel 600 mg6.46
Ferroquine 400 mg + Artefenomel 1000 mg13.05

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Pharmacokinetics: Plasma Concentration at 168 Hours Post-dose (C168h) of Artefenomel

"The observed plasma concentration of artefenomel post 168 hours of drug administration. Data for this outcome measure was not planned to be collected and analyzed for Ferroquine 400 mg arm, since artefenomel was not administered." (NCT03660839)
Timeframe: At 168 hours post-dose

Interventionnanograms per milliliter (Geometric Mean)
Ferroquine 400 mg + Artefenomel 300 mg0.9251
Ferroquine 400 mg + Artefenomel 600 mg2.152
Ferroquine 400 mg + Artefenomel 1000 mg4.445

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Time Elapsed Below the Limit of Quantification (LOQ) of Parasitemia

The time elapsed below LOQ (LOQ expressed in parasites/microliter) of parasitemia (quantitative content of parasites present in the blood) was defined as the time (in days) for which no parasites were seen i.e., time corresponding to PCT, up to the time of occurrence of a new malaria infection or recrudescence. If there was no occurrence of a new malaria infection or recrudescence, then this was the time corresponding to the first negative thick blood film, until the end of study. PCT (k) is the minus slope of the natural logarithm parasitemia versus time linear relationship, after exclusion of outliers, lag phase and Tail, using the worldwide antimalarial resistance network, Parasite clearance estimator. Participants with confirmed parasite clearance were involved in the analysis and Kaplan-Meier method was used for estimation. (NCT03660839)
Timeframe: Up to Day 28

Interventiondays (Median)
Ferroquine 400 mg25.0
Ferroquine 400 mg + Artefenomel 300 mg26.0
Ferroquine 400 mg + Artefenomel 600 mg26.5
Ferroquine 400 mg + Artefenomel 1000 mg26.0

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Time to Re-emergence

Time to re-emergence (in days) was defined as the time to appearance of asexual parasites after clearance of initial infection irrespective of genotype. Re-emergence was confirmed by microscopy (positive blood smear). Participants with confirmed parasite clearance were included in the analysis and Kaplan-Meier method was used for estimation. (NCT03660839)
Timeframe: Up to Day 28

Interventiondays (Median)
Ferroquine 400 mgNA
Ferroquine 400 mg + Artefenomel 300 mgNA
Ferroquine 400 mg + Artefenomel 600 mgNA
Ferroquine 400 mg + Artefenomel 1000 mgNA

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Time to Re-infection

Time to re-infection (in days) was defined as the time to appearance of asexual parasites after clearance of initial infection with a genotype that differed from that of parasites present at Baseline. Re-infection was confirmed by PCR analysis. Participants with confirmed parasite clearance were involved in the analysis and Kaplan-Maier method was used for estimation. (NCT03660839)
Timeframe: Up to Day 28

Interventiondays (Median)
Ferroquine 400 mgNA
Ferroquine 400 mg + Artefenomel 300 mgNA
Ferroquine 400 mg + Artefenomel 600 mgNA
Ferroquine 400 mg + Artefenomel 1000 mgNA

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Time to Recrudescence

Time to recrudescence (in days) was defined as the time to appearance of asexual parasites after clearance of initial infection with a genotype identical to that of parasites present at Baseline. Recrudescence was confirmed by PCR analysis. Participants with confirmed parasite clearance were included in the analysis and Kaplan-Meier method was used for estimation. (NCT03660839)
Timeframe: Up to Day 28

Interventiondays (Median)
Ferroquine 400 mgNA
Ferroquine 400 mg + Artefenomel 300 mgNA
Ferroquine 400 mg + Artefenomel 600 mgNA
Ferroquine 400 mg + Artefenomel 1000 mgNA

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Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and Adverse Event of Special Interest (AESI)

An AE was defined as any untoward medical occurrence in a participant who received study drug and did not necessarily had to have a causal relationship with the treatment. SAEs were any untoward medical occurrence that resulted in any of the following outcomes: death, life-threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. TEAEs were defined as AEs that developed or worsened or became serious during on-treatment phase that was defined as the time from the start of study drug up to the Day 28. AE of special interest (AESI) was an AE (serious or non-serious) of scientific and medical concern specific to the Sponsor's product or program, for which ongoing monitoring and immediate notification by the Investigator to the Sponsor was required. (NCT03660839)
Timeframe: From Baseline up to Day 28

,,,
InterventionParticipants (Count of Participants)
Any TEAEAny treatment-emergent SAEAny treatment-emergent AESIAny TEAE led to treatment discontinuationAny TEAE led to death
Ferroquine 400 mg180000
Ferroquine 400 mg + Artefenomel 1000 mg240100
Ferroquine 400 mg + Artefenomel 300 mg210100
Ferroquine 400 mg + Artefenomel 600 mg241000

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Observed Parasite Reduction Ratio (PRR) at 24 Hours, 48 Hours, and 72 Hours

The observed PRR was defined as the ratio of the number of parasites at time t=0 (baseline) divided by the parasite count at each specified time t (post-treatment). If the post dose parasite count = 0 (due to a negative parasitemia) then a value of 1 parasite per microliter was imputed to allow a parasite reduction ratio calculation. (NCT03660839)
Timeframe: Baseline, 24, 48 and 72 hours post-dose

,,,
Interventionratio (Mean)
At Hour 24At Hour 48At Hour 72
Ferroquine 400 mg638.4369709.09315655.447
Ferroquine 400 mg + Artefenomel 1000 mg7929.72019328.05719125.715
Ferroquine 400 mg + Artefenomel 300 mg5921.19717594.70018069.583
Ferroquine 400 mg + Artefenomel 600 mg5715.04613120.40914561.409

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Parasitemia: Change From Baseline in Number of Parasites Per Microliter of Blood at 6, 12, 18, 24, 30, 36, 48, 72, 96, 120, 144 and 168 Hours

Parasitemia (quantitative content of parasites present in the blood) at baseline until Day 7 (i.e. 168 hours) was assessed by optical microscope. (NCT03660839)
Timeframe: Baseline, 6, 12, 18, 24, 30, 36, 48, 72, 96, 120, 144 and 168 hours post-dose

,,,
Interventionparasites per microliter (Mean)
BaselineChange from baseline at 6 hours post-doseChange from baseline at 12 hours post-doseChange from baseline at 18 hours post-doseChange from baseline at 24 hours post-doseChange from baseline at 30 hours post-doseChange from baseline at 36 hours post-doseChange from baseline at 48 hours post-doseChange from baseline at 72 hours post-doseChange from baseline at 96 hours post-doseChange from baseline at 120 hours post-doseChange from baseline at 144 hours post-doseChange from baseline at 168 hours post-dose
Ferroquine 400 mg17496.0-1349.3-5721.5-9181.2-14238.4-16571.1-17036.9-17595.3-18231.8-18287.6-19280.0-18526.0-18962.8
Ferroquine 400 mg + Artefenomel 1000 mg20546.8893.2-11319.4-18281.9-19461.9-19657.5-19587.9-20327.7-20314.2-20662.0-20350.4-20029.7-20349.5
Ferroquine 400 mg + Artefenomel 300 mg18799.6-96.9-11471.6-17021.4-17939.0-19110.5-18792.2-17706.1-18396.3-19024.7-19024.7-19023.3-18922.2
Ferroquine 400 mg + Artefenomel 600 mg15171.98515.4-4156.6-9447.5-10674.6-13299.6-14573.9-14542.3-15333.7-15258.5-15265.3-15254.5-15268.5

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Pharmacokinetics (PK): Concentration of OZ439 in Plasma

"Concentrations of OZ439 in plasma was analyzed by liquid chromatography tandem mass spectroscopy (LC-MS/MS). The lower limit of quantification (LLOQ) was 1 nanograms per milliliter for analysis of OZ439. Data for this outcome measure was not planned to be collected and analyzed for Ferroquine 400 mg arm, since artefenomel was not administered." (NCT03660839)
Timeframe: 1, 2, 4, 6, 12, 24, 48, 72, 120, 168 and 336 hours post-dose

,,
Interventionnanograms per milliliter (Geometric Mean)
1 hour post-dose2 hours post-dose4 hours post-dose6 hours post-dose12 hours post-dose24 hours post-dose48 hours post-dose72 hours post-dose120 hours post-dose168 hours post-dose336 hours post-dose
Ferroquine 400 mg + Artefenomel 1000 mg188.423655.851978.649865.581369.33584.16729.55416.6658.5965.9033.149
Ferroquine 400 mg + Artefenomel 300 mg88.641269.075349.134234.37592.61417.5266.0973.2242.1441.7451.227
Ferroquine 400 mg + Artefenomel 600 mg149.199450.218576.673478.929164.02848.25714.6118.1625.3393.4081.970

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Pharmacokinetics: Area Under the Concentration Curve Form Time 0 to Day 28 (AUC0-28) of Ferroquine and Its Active Metabolite SSR97213

Area under the plasma concentration versus time curve from time 0 to Day 28 (i.e. 672 hours). (NCT03660839)
Timeframe: Pre-dose, 1, 4, 6, 8, 12, 24, 72, 168, 336 and 672 hours post-dose

,,,
Interventionmicrograms*hour per milliliter (Geometric Mean)
FQSSR97213
Ferroquine 400 mg8.8748.878
Ferroquine 400 mg + Artefenomel 1000 mg10.148.487
Ferroquine 400 mg + Artefenomel 300 mg10.339.051
Ferroquine 400 mg + Artefenomel 600 mg10.138.483

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Pharmacokinetics: Area Under the Concentration Curve From Time 0 to Infinity of Ferroquine and Its Active Metabolite SSR97213

Area under the plasma concentration versus time curve from time 0 to infinity. (NCT03660839)
Timeframe: Pre-dose, 1, 4, 6, 8, 12, 24, 72, 168, 336 and 672 hours post-dose

,,,
Interventionmicrograms*hour per milliliter (Geometric Mean)
FQSSR97213
Ferroquine 400 mg15.519.58
Ferroquine 400 mg + Artefenomel 1000 mg16.8718.32
Ferroquine 400 mg + Artefenomel 300 mg17.8120.09
Ferroquine 400 mg + Artefenomel 600 mg16.317.94

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Pharmacokinetics: Concentration of FQ and Its Active Metabolite SSR97213 in Blood

Concentrations of FQ and SSR97213 in blood was analyzed by LC-MS/MS. The LLOQ was 5 nanograms per milliliter for analysis of FQ and SSR97213. (NCT03660839)
Timeframe: 1, 4, 6, 8, 12, 24, 72, 168, 336 and 672 hours post-dose

,,,
Interventionnanograms per milliliter (Geometric Mean)
1 hour post-dose: FQ1 hour post-dose: SSR972134 hours post-dose: FQ4 hours post-dose: SSR972136 hours post-dose: FQ6 hours post-dose: SSR972138 hours post-dose: FQ8 hours post-dose: SSR9721312 hours post-dose: FQ12 hours post-dose: SSR9721324 hours post-dose: FQ24 hours post-dose: SSR9721372 hours post-dose: FQ72 hours post-dose: SSR97213168 hours post-dose: FQ168 hours post-dose: SSR97213336 hours post-dose: FQ336 hours post-dose: SSR97213672 hours post-dose: FQ672 hours post-dose: SSR97213
Ferroquine 400 mg36.09413.20964.93420.07969.00523.17064.29325.13150.62119.95744.35118.87425.34316.75716.97316.30810.54313.6126.7379.751
Ferroquine 400 mg + Artefenomel 1000 mg26.5996.80597.00717.55995.06220.68782.99020.29971.74318.20351.25016.76329.79217.75621.32219.10811.26313.6867.34212.014
Ferroquine 400 mg + Artefenomel 300 mg27.21410.375100.56929.63292.65728.09882.63929.31968.38424.38553.21122.96731.16120.05920.52419.19611.67814.7977.62310.324
Ferroquine 400 mg + Artefenomel 600 mg21.1656.16179.65618.37784.80325.95478.19625.30459.10620.61547.56819.82631.37321.31521.54320.46312.46915.6477.60110.977

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Pharmacokinetics: Plasma Concentration at 168 Hours Post-dose of Ferroquine and Its Active Metabolite SSR97213

The observed plasma concentration of FQ and SSR97213 post 168 hours of FQ administration. (NCT03660839)
Timeframe: At 168 hours post-dose

,,,
Interventionnanograms per milliliter (Geometric Mean)
FQSSR97213
Ferroquine 400 mg15.8616.15
Ferroquine 400 mg + Artefenomel 1000 mg17.8314.95
Ferroquine 400 mg + Artefenomel 300 mg18.3216.03
Ferroquine 400 mg + Artefenomel 600 mg18.6915.2

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Time to 50% and 99% Parasite Reduction

Time to 50% and 99% parasite reduction was defined as time needed for the parasitemia (quantitative content of parasites present in blood) to be reduced to 50% and 99% of the initial value, respectively. (NCT03660839)
Timeframe: Up to Day 28

,,,
Interventionhours (Mean)
Time to 50% Parasite reductionTime to 99% Parasite reduction
Ferroquine 400 mg14.0736.92
Ferroquine 400 mg + Artefenomel 1000 mg9.4722.95
Ferroquine 400 mg + Artefenomel 300 mg7.7419.33
Ferroquine 400 mg + Artefenomel 600 mg7.7818.34

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Pharmacokinetics: Maximum Observed Plasma Concentration (Cmax) of Artefenomel

"Cmax is the maximum observed plasma concentration of Artefenomel. Data for this outcome measure was not planned to be collected and analyzed for Ferroquine 400 mg arm, since artefenomel was not administered." (NCT03660839)
Timeframe: Pre-dose, 1, 2, 4, 6, 12, 24, 48, 72, 120, 168 and 336 hours post-dose

Interventionnanograms per milliliter (Geometric Mean)
Ferroquine 400 mg + Artefenomel 300 mg277.3
Ferroquine 400 mg + Artefenomel 600 mg488.3
Ferroquine 400 mg + Artefenomel 1000 mg920.6

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Pharmacokinetics: Maximum Observed Plasma Concentration of Ferroquine and Its Active Metabolite SSR97213

Cmax is the maximum observed plasma concentration of Ferroquine. (NCT03660839)
Timeframe: Pre-dose, 1, 4, 6, 8, 12, 24, 72, 168, 336 and 672 hours post-dose

,,,
Interventionnanograms per milliliter (Geometric Mean)
FQSSR97213
Ferroquine 400 mg80.9924.58
Ferroquine 400 mg + Artefenomel 1000 mg82.4519.76
Ferroquine 400 mg + Artefenomel 300 mg79.9522.65
Ferroquine 400 mg + Artefenomel 600 mg72.6419.14

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