RV16UB
BiologicalRV16UB is administered by spraying an atomized viral suspension into a single nostril. Planned doses of RV16UB in Part 1 are 10 Tissue Culture Infective Dose 50 (TCID50), 100 TCID50, 1000 TCID50 and 10,000 TCID50.
NCT Number: NCT01866306
The purpose of this study is to establish the safety and tolerability of Unbiased Biomarkers for the Prediction of Respiratory Disease Outcomes (U-BIOPRED) human rhinovirus 16 (RV16UB) in healthy and asthmatic participants, and to identify an appropriate dosage of RV16UB in order to study biomarkers in asthmatic participants. The study is divided into 2 parts. Part 1 is a dose-finding study where healthy participants, and asthmatic participants, who were either treated or not treated with a class of long-acting beta antagonists (LABA) will be recruited to undergo nasal challenge with increasing doses of RV16UB. Part 2 is a biomarker study where mild to moderate asthmatics undergo challenge with the most appropriate dose of RV16UB identified in Part 1, based on tolerability and viral effects. .
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Notify Me18 year–55 year
All sexes
Interventional
Phase 1
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Parts 1 and 2:
Part 1:
Either of the following:
Part 2:
Exclusion criteria
RV16UB is administered by spraying an atomized viral suspension into a single nostril. Planned doses of RV16UB in Part 1 are 10 Tissue Culture Infective Dose 50 (TCID50), 100 TCID50, 1000 TCID50 and 10,000 TCID50.
Asthmatic participants were treated with LABA as part of their standard of care
Time frame: Up to Day 24
ECI are selected non-serious and serious adverse events which include the following: an overdose of Sponsor's product; requirement for systemic steroids to treat asthma exacerbation related to virus challenge; acute reaction to virus challenge, confirmed through repeat measurement and when considered potentially associated with administration of virus; specified vital sign findings within 4hr of challenge; specified symptom findings within 24hr of challenge; >20% decrease in Forced Expiratory Volume in 1 second (FEV1) relative to baseline within 4hr of challenge; dyspnea associated with drop in FEV1 (within 4hr of challenge) that is unresponsive to a bronchodilator rescue agent within 20 minutes; Grade 2+ deviation from normal values of liver-related laboratory parameters at any time between challenge and day 14.
Time frame: Up to Day 24
A SAE is any adverse event occurring at any dose or during any use of the Sponsor's product that: results in death; is life threatening; results in persistent or significant disability/incapacity; results in or prolongs an existing in-patient hospitalization; is a congenital anomaly/birth defect; is a cancer; is associated with an overdose; is another important medical event.
Time frame: Day 1 up to Day 7
Asthmatic participants from Part 1 were treated with RV16UB virus at a dose of 100 TCID50, and challenge induced upper airway symptoms were monitored with a diary recording Jackson Cold Symptom Score (CSS). The CSS measures 8 cold symptoms, with each symptom scored from 0 (absent) to 3 (severe). The total score ranges from 0-24, with higher scores reflecting greater severity. The number of participants with a CSS score equal or greater than 3 for two days in a row are presented.
Time frame: Baseline and Days 1 - 7
Log-transformed FEV1 data were fit by Bayesian hierarchical longitudinal models, with a random participant effect and a fixed categorical effect for day. All baseline (day -7 to day -1) FEV1 were assumed to be with equal mean. FEV1 assessments obtained between 3 am to 3 pm were counted as morning measurements. The TWA CFB morning FEV1 on days 1-7 was calculated as the difference of the mean of estimated day 1-7 morning FEV1 value and the corresponding estimated baseline value. The 95% Confidence Interval actually refers to a 95% Credible Interval. The anticipated mean reduction from baseline is 10%.
Time frame: Baseline and Days 1- 7
Log-transformed FEV1 data were fit by Bayesian hierarchical longitudinal models, with a random participant effect and a fixed categorical effect for day. All baseline (day -7 to day -1) FEV1 were assumed to be with equal mean. FEV1 assessments obtained between 3 pm to next day 3 am were counted as evening measurements. The TWA CFB evening FEV1 on days 1-7 was calculated as the difference of the mean of estimated day 1-7 evening FEV1 value and the corresponding estimated baseline value. The FEV1 readings on the evenings of sputum inductions were excluded from the analyses. The 95% Confidence Interval actually refers to a 95% Credible Interval. The anticipated mean reduction from baseline is 10%.
Time frame: Baseline and Days 1 - 14
Asthmatic participants from Part 1 were treated with RV16UB virus, and challenge induced upper airway symptoms were monitored with a diary recording CSS. The CSS measures 8 cold symptoms, with each symptom scored from 0 (absent) to 3 (severe). The total score ranges from 0-24, with higher scores reflecting greater severity, and a positive change from baseline indicating worsening symptoms.
Time frame: Days 1 - 14
Viral RNA was measured by real time reverse transcriptase polymerase chain reaction (qRT-PCR) from nasal lavage fluid collected on day 3 and day 7 from asthmatic participants, and the number of participants with at least 10^3 copies/ml was determined.
Time frame: Baseline and up to day 7
Log-transformed FEV1 data were fit by Bayesian hierarchical longitudinal models, with a random participant effect and a fixed categorical effect for day. All baseline (day -7 to day -1) FEV1 were assumed to be with equal mean. The FEV1 readings on the evenings of sputum inductions were excluded from the analyses. The percent decrease of the lowest FEV1 measurement after viral challenge compared to the TWA of the baseline FEV1 is presented. The 95% Confidence Interval actually refers to a 95% Credible Interval. The mean percent decrease is anticipated to be different from zero.
Time frame: Baseline and Days 3 to 10
The ACD contains seven symptom questions (nocturnal awakening, waking in the morning with symptoms, activity limitation, shortness of breath and wheezing) which are answered on rising in the morning and retiring at bedtime. Missing scores are imputed by linear interpolation or extrapolation. Daily ACD score was fit by a Bayesian hierarchical longitudinal model with participant-specific intercept and a fixed categorical effect for day. All baseline (day -7 to day -1) ACD scores are assumed to be with equal mean. The ACD score is the sum of responses to the seven questions, with answers on a 7-point scale (0= no impairment; 6 = maximum impairment) with the score ranging from 0 to 42, and higher scores indicating greater impairment. The 95% Confidence Interval actually refers to a 95% Credible Interval. The mean percent increase is anticipated to be different from zero.
Merck Sharp & Dohme LLC
Industry
A Dose-Finding and Longitudinal Biomarker Study of Rhinovirus Challenge in Healthy Volunteers and Mild-Moderate Asthmatics to Evaluate the Safety and Use of a Human Rhinovirus Preparation in Developing High Dimensionality Phenotypes ("Handprints") for Asthma
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