PC786 is a new medicine being developed for treatment of respiratory syncytial virus. The main purpose of this study is to evaluate the antiviral activity of PC786 in healthy adults infected with RSV virus in a viral challenge study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
56
Repeat doses
Repeat doses
hVIVO Services Ltd
London, United Kingdom
RSV viral load
AUC 0-t for RSV viral load measured in nasal washes by reverse transcription quantitative polymerase chain reaction (RT-qPCR)
Time frame: Baseline to Day 28
Number of participants reporting one or more treatment-emergent adverse event (TEAE)
Time frame: Screening to Day 28
Number of participants who discontinue due to an adverse event
Time frame: Screening to Day 28
Number of participants who meet the markedly abnormal criteria for 12-lead ECG assessment at least once post dose
Time frame: Screening to Day 28
Number of participants who meet the markedly abnormal criteria for vital signs assessments at least once post dose
Time frame: Screening to Day 28
Number of participants who meet the markedly abnormal criteria for safety laboratory assessments at least once post dose
Time frame: Screening to Day 28
Number of participants who meet the markedly abnormal criteria for spirometry (FEV1 & FVC measured together) assessments at least once post dose
Time frame: Screening to Day 28
Area under the plasma concentration versus time curve (AUC) of PC786 measured in plasma
Time frame: Pre-dose and at multiple time points to Day 12
Maximum observed concentration (Cmax) of PC786 measured in plasma
Time frame: Pre-dose and at multiple time points to Day 12
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Time maximum concentration observed (Tmax) of PC786 measured in plasma
Time frame: Pre-dose and at multiple time points to Day 12
Apparent terminal half life (T1/2) of PC786 measured in plasma
Time frame: Pre-dose and at multiple time points to Day 12
Determination of nasal concentrations of PC786
PC786 concentrations in mucosal lining fluid collected using synthetic absorptive matrix
Time frame: Pre-dose and at multiple time points to Day 28
Comparison of mucus production following treatment with PC786 or placebo post viral inoculation
Reduction in weight of mucus produced post viral infection
Time frame: Baseline to Day 12
Comparison of the effect of treatment with PC786 or placebo on RSV symptoms
Composite score of self-reported symptoms on a symptom diary card. Nasal symptoms, sneezing, sore throat, cough, headache, wheezing, chest tightness, shortness of breath, joint aches, feverishness, malaise, earache are assessed using a score of 0 (no symptoms), 1 (just noticeable), 2 (bothersome but able to participate in activities), 3 (bothersome and not able to participate in activities)
Time frame: Baseline to Day 12
Change in viral load measured in nasal wash
Change in viral load before first dose of PC786 to Day 12
Time frame: Baseline to Day 12
Time to non-detectability of virus measured in nasal wash
Time frame: Baseline to Day 12
Peak viral load measured in nasal wash
Time frame: Baseline to Day 12
Time peak viral load observed measured in nasal wash
Time frame: Baseline to Day 12