A Phase 2 interventional study of PrEP-001 and G-004 in Asthma, sponsored by Hvivo. Completed. Open to participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2017-09-29.
Sponsored by Hvivo · Phase 2, Interventional, and Prevention
Phase 2 study, to examine the prophylactic efficacy, safety and tolerability of PrEP-001 in asthmatics who have been infected with the human rhinovirus (HRV16) after receiving two doses of the study drug/placebo.
Screening took place up to 90 days before quarantine, where volunteers were asked to complete an informed consent and undergo scheduled screening assessments to determine their eligibility.
Eligible volunteers were invited to test and record their respiratory symptoms and peak expiratory flow (PEF), medications and any adverse events in diary cards from Day -14 to Day -5.
They attended Quarantine on Day -4/-3, received the study drug/placebo intra nasally on Day -2 and Day -1 and subsequently challenged with HRV16 on Day 0. Randomisation to receive study drug/placebo was 1:1.
Volunteers remained in the quarantine unit for 8 days after inoculation.
PEF self-testing continued from Day 9 to Day 28.
On Day 20 (±3 days) and Day 28 (±5 days), volunteers attended follow up visits where they were assessed by a study physician for well-being, on-going symptoms and adverse events.
Exclusion Criteria:
In Viral Challenge arm cohort: A nasal dose of 6400 μg PrEP-001 equally divided over both nostrils on 2 consecutive days (Day -2 and Day -1). In the Safety arm's first dose cohort: A nasal dose of 6400 μg PrEP-001 equally divided over both nostrils on 2 consecutive days (Day -2 and Day -1). Then assuming no significant safety issues with the lower dose (as determined by blinded review by the DSMB team), the Safety arm's second dose cohort will consist of: A nasal dose of 12800 μg PrEP-001 equally divided over both nostrils on 2 consecutive days (Day -2 and Day -1)
Drug: PrEP-001
In the Viral Challenge arm and each Safety Arm cohort: A nasal dose of placebo equally divided over both nostrils on 2 consecutive days (Day -2 and Day -1).
Drug: G-004
A spray dried powder for intranasal administration formulated from an aqueous mixture of pre-gelatinized waxy maize starch and the drug substance delivered using a single dose nasal powder device.
A spray dried pre-gelatinized waxy maize starch powder (G-001) in the single dose nasal powder device
Primary Efficacy Endpoint: The Area Under the Curve (AUC) of total symptom score post viral challenge.
AUC of total symptom scores (upper respiratory tract (URT), lower respiratory tract (LRT) and systemic viral symptoms (SVS)). Total symptom scores (from the symptom diary card) used to calculate the AUC. The primary endpoint is only being derived from the Viral Challenge arm.
Time frame: Day -14 to Day 28
Secondary Efficacy Endpoint: Symptom Scores: Area Under the Curve (AUC)
AUC of individual symptom scores (upper respiratory tract (URT), lower respiratory tract (LRT) and systemic viral symptoms (SVS)). A total symptom score is derived for each subject, separately for each assessment (symptom diary card) on each day.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Symptom Scores: Duration of symptoms
Time (days).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Symptom Scores: Peak symptoms score
Numerical sum of all individual composite symptoms.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Symptom Scores: Time to peak symptoms
Time (days).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Symptom Scores: Time to resolution from peak symptoms
Time (days).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: viral shedding
Number of subjects with viral shedding.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: incidence of laboratory-confirmed Influenza illness
The number of subjects with laboratory-confirmed influenza infection.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: laboratory confirmed Influenza A/Perth/16/2009 (H3N2) Virus infection
The number of subjects with laboratory-confirmed influenza A/Perth/16/2009 (H3N2) Virus infection.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: HRV-like-illness
The number of subjects with HRV-like illness.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: Sub-clinical infection
The number of subjects with Sub-clinical illness.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: Upper respiratory tract illness
The number of subjects with Upper respiratory tract illness.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: Lower respiratory tract illness
The number of subjects with Lower respiratory tract illness.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: Febrile illness
The number of subjects with Febrile illness.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: Systemic illness
The number of subjects with Systemic illness.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: Non-sick and uninfected
The number of subjects Non-sick and uninfected.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: Viral replication, as measured by tissue culture assay
The number of subjects with viral replication.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Incidence(s) of illness and infection: Seroconversion
The number of subjects with seroconversion.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Viral Load Parameters: Area under the curve (AUC) of viral load, as measured by nasopharyngeal swab RT-qPCR
Viral load data supplied in Log10 Copies/mL. These values used to calculate the Area Under the Curve (AUC) for each subject.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Duration of virus shedding, as measured by nasal wash RT-qPCR
Time (days).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Peak virus shedding, as measured by nasal wash RT-qPCR
The highest observed RT-qPCR viral load value.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Viral Load Parameters: Time to peak viral shedding, as measured by nasal wash RT-qPCR
Time (days).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Time to resolution from peak viral shedding, as measured by nasal wash RT-qPCR.
Time (days).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Area under the curve (AUC) of viral load, as measured by nasal wash TCID50.
Tissue culture viral load data supplied in log10 TCID50/mL. These values used to calculate the Area Under the Curve (AUC) for each subject.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Duration of virus shedding, as measured by nasal wash TCID50.
Time (days).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Peak virus shedding, as measured by nasal wash TCID50.
The highest observed RT-qPCR viral load value.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Time to peak viral shedding, as measured by nasal wash TCID50.
Time (days).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Total weight of nasal discharge produced post Viral Challenge to Quarantine discharge.
Weight (grams).
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Change in lung function compared to pre-Challenge.
Peak Expiratory Flow (L/min) and FEV1 (L)
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Change in Asthma Control Questionnaire (ACQ) score compared to pre-Challenge.
ACQ score.
Time frame: Day -4 to Day 28
Secondary Efficacy Endpoint: Change in Fractional exhaled nitric oxide (FeNO) compared to pre-Challenge.
FeNO (ppb).
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion (on any occasion) of subjects with Grade 2 or worse symptoms at any day post-Viral Challenge.
Number of subjects with Grade 2 or higher symptoms at any day post-Viral Challenge.
Time frame: Day -14 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with Grade 2 or worse symptoms at each day post-Viral Challenge.
Number of subjects with symptoms at Grade 2 or higher, at each day post-Viral Challenge.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Duration of Grade 2 or worse symptoms (post-Viral Challenge).
Time (days).
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with any clinical symptoms (i.e., with Grade ≥ 1) (post-Viral Challenge).
The proportion of subjects with symptoms grade 1 or higher.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with Grade ≥1 symptom score for upper respiratory tract (URT) symptoms (post-Viral Challenge).
The proportion of subjects with upper respiratory tract symptoms.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with Grade ≥1 symptom score for lower respiratory tract (LRT) symptoms (post-Viral Challenge).
The proportion of subjects with lower respiratory tract symptoms.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with Grade ≥1 symptom score for systemic symptoms (post-Viral Challenge).
The proportion of subjects with systemic symptoms.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Time to peak for each reported and any symptoms (post-Viral Challenge).
Time (days).
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with pyrexia.
The proportion of subjects with pyrexia.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Duration of pyrexia.
Time (hours).
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Tympanic temperature.
Changes in tympanic temperature over time (post Viral Challenge) (degrees Celcius)
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Area under the curve (AUC) of symptom scores using the 13-item symptom diary card (total, URT, LRT and SVS), Day 1 (assessment 1) to Day 8.
AUC of individual symptom scores.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with Lab-confirmed Clinical Symptoms of URTI.
The number of subjects with lab-confirmed clinical symptoms of URTI.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with Lab-confirmed Clinical Symptoms of LRTI.
The number of subjects with lab-confirmed clinical symptoms of LRTI.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Proportion of subjects with Lab-confirmed Clinical Symptoms of Systemic Illness (SI).
The number of subjects with lab-confirmed clinical symptoms of SI.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Overall total symptom score, Day 1 (assessment 1) to Day 8, using the 10-item symptom diary card.
Total symptom score.
Time frame: Day -4 to Day 28
Exploratory Efficacy Analysis: Overall symptom scores (URT, LRT SVS), Day 1 (assessment 1) to Day 8, using the 10-item symptom diary card.
Total symptom score.
Time frame: Day -4 to Day 28
Safety endpoint: Treatment-emergent Adverse Events (TEAE).
Incidence of treatment-emergent AEs (TEAE), overall, and by severity and causality (analysed descriptively).
Time frame: Day -4 to Day 28
Safety endpoint: Clinical laboratory parameters.
Absolute values and change from baseline in routine clinical laboratory parameters by timepoint (analysed descriptively). Includes haematology, biochemistry, coagulation, cardiac enzymes, thyroid function tests and urinalysis parameters.
Time frame: Day -4 to Day 28
Safety endpoint: Vital signs.
Absolute values and change from baseline in vital signs parameters by timepoint (analysed descriptively); systolic blood pressure (SBP) (mmHg), diastolic blood pressure (DBP) (mmHg), respiratory rate (RR) (breaths per minute), heart rate (HR) (beats per minute) and SpO2 (%).
Time frame: Day -4 to Day 28
Safety endpoint: Physical Examination.
Physical examination findings (analysed descriptively).
Time frame: Day -4 to Day 28
Safety endpoint: Spirometry.
Absolute and changes from baseline for FEV1 \[absolute\] (L), FEV1 \[% predicted\] (%), FVC \[absolute\] (L), FVC \[% predicted\] (%), FEV1/FVC ratio \[absolute\], FEV1/FVC ratio \[% predicted\] (%), maximum mid expiratory flow (MMEF) \[absolute\] (L/sec) and MMEF \[% predicted\]). The lung function parameter Peak Expiratory Flow \[L/min\] will also be summarised (analysed descriptively).
Time frame: Day -4 to Day 28
Safety endpoint: ECGs.
12-lead electrocardiogram (ECG) findings (analysed descriptively).
Time frame: Day -4 to Day 28
Safety endpoint: Asthma Exacerbations (Number)
Number and percentage of subjects experiencing any asthma exacerbations.
Time frame: Day -4 to Day 28
Safety endpoint: Duration of each asthma exacerbation
Time (days)
Time frame: Day -4 to Day 28
Safety endpoint: Time to first asthma exacerbation
Time (days)
Time frame: Day -4 to Day 28
Safety endpoint: Subjects requiring treatment for asthma exacerbation
Number of subjects requiring oral or parenteral steroids as treatment for their exacerbation.
Time frame: Day -4 to Day 28
Safety endpoint: Subjects requiring hospitalisation for asthma exacerbation
Number of subjects requiring hospitalisation for their exacerbation.
Time frame: Day -4 to Day 28
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