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A two-part, randomized, double-blind, placebo-controlled, single-center study to evaluate the safety and causal prophylactic efficacy of KAF156 in a controlled human malaria challenge model

A two-part, randomized, double-blind, placebo-controlled, single-center study to evaluate the safety and causal prophylactic efficacy of KAF156 in a controlled human malaria challenge model - CKAF156X2202

Status
Unknown
Phases
Phase 2
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON38223
Enrollment
126
Registered
2013-12-17
Start date
Unknown
Completion date
Unknown
Last updated
2024-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

malaria Plasmodium falciparum

Interventions

Administration of a single dose of the novel antimalarial drug KAF156.

Sponsors

Novartis
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: • Written informed consent must be obtained before any assessment is performed. • Healthy male subjects aged 18 to 35 years of age included, and in good health as determined by past medical history, physical examination, vital signs, electrocardiogram, and laboratory tests at screening. • At screening and baseline, vital signs (systolic and diastolic blood pressure and pulse rate) will be assessed in the sitting position after the subject has rested for at least three minutes, and again (when required) after three minutes in the standing position. Sitting vital signs should be within the normal range. • Subjects must weigh at least 50 kg to participate in the study, and must have a body mass index (BMI) within the range of 18 - 30 kg/m2. BMI = Body weight (kg) / [Height (m)]2. • Availability and willingness to comply with the study protocol for the duration of the study, including attendance of all study visits. • Agreement to inform the General Practitioner and to sign a request to release medical information concerning contraindications for participation in the study. • Able to communicate well with the investigator, to understand and comply with the requirements of the study.

Exclusion criteria

Exclusion criteria: • Use of other investigational drugs at the time of enrollment, or within 5 half-lives of enrollment, or within 30 days, whichever is longer; or longer if required by local regulations. • A history of clinically significant ECG abnormalities • Known history or current clinically significant arrhythmias. • An estimated 10-year risk of fatal cardiovascular disease >=5%, according to the Systematic Coronary Risk Evaluation (SCORE) system. • Known family history or known presence of long QT syndrome or Torsades de Pointes. • Sexually active males must use a condom during intercourse while taking drug and for at least 4 weeks (>5 times the study drug terminal half-lives) after stopping study medication and should not father a child in this period. • History of malaria or residence in a malaria-endemic area over a period of 6 months before study entry. • Contraindications to Malarone® or chloroquine, including hypersensitivity or treatment taken by the volunteer that interferes with Malarone® or chloroquine. • Any confirmed or suspected immunosuppressive or immunodeficient condition, including functional asplenia or history of spleenectomy. • History of bleeding disorders, blood dyscrasias, including sickle cell anemia, sickle cell trait, thalassemia, thalassemia trait, or G6PD deficiency.

Design outcomes

Primary

MeasureTime frame
The primary outcome variable is the number of subjects that become infected with malaria. A malaria infection is defined as: 1. Two consecutive positive real-time qPCR result (defined as >500 parasites per mililiter) in a patient with a temperature =38.0 degrees Celsius.

Secondary

MeasureTime frame
Prophylactic Efficacy assessments: quantative PCR (qPCR) analysis. Safety assessments • Physical examination • Vital signs • Height and weight • Laboratory evaluations • Hematology • Clinical chemistry • Urinalysis • ECG

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)