The purpose of this study is to evaluate the antiviral effect, as measured by the time to alleviation of influenza symptoms and viral titer in nasopharyngeal secretions in adults with acute uncomplicated influenza A following administration of ZSP1273.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
172
1 X 200-mg tablet taken orally
2 tablets taken orally
2 X 200-mg tablet taken orally
The Second Hospital Of Anhui Medical University
Time to alleviation of influenza symptoms in participants
Participants assessed the severity of seven influenza-associated symptoms (cough, sore throat, headache, nasal congestion, feverishness or chills, muscle or joint pain, and fatigue) on a 4-point scale (with 0 indicating no symptoms, 1 mild symptoms, 2 moderate symptoms, and 3 severe symptoms). Time to alleviation of symptoms was defined as the time from the start of the study treatment to the time when all 7 influenza-related symptoms were assessed by the participant as absent (0) or mild (1) for at least 21.5 hours
Time frame: Initiation of study treatment (Day 1) up to Day 15
AUC of the log10 pharyngeal viral load
Area under the curve (AUC) of the log10 pharyngeal viral load is measured by viral culture and quantitative reverse transcriptase polymerase chain reaction (qRT-PCR).
Time frame: Days 6
Change in the total score of 7 influenza symptoms
Participants assessed the severity of seven influenza-associated symptoms(cough, sore throat, headache, nasal congestion, feverishness or chills, muscle or joint pain, and fatigue) on a 4-point scale (with 0 indicating no symptoms, 1 mild symptoms, 2 moderate symptoms, and 3 severe symptoms). The composite symptom score is the total score of the 7 influenza symptoms(Sum of symptom scores) as assessed by the participant, and ranges from 0 to 21.
Time frame: Up to Day15
Time to alleviation of each influenza symptom.
Participants assessed the severity of seven influenza-associated symptoms(cough, sore throat, headache, nasal congestion, feverishness or chills, muscle or joint pain, and fatigue) on a 4-point scale (with 0 indicating no symptoms, 1 mild symptoms, 2 moderate symptoms, and 3 severe symptoms). Time to alleviation of each symptom was defined as the time from the start of treatment to the start of the time period when the individual symptom was assessed by the participant as 0 (None) or 1 (Mild) for a duration of at least 21.5 hours.
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1 tablet taken orally
3 X 200-mg tablet taken orally
3 tablets taken orally
Subjects will receive matching placebo of ZSP1273
Hefei, Anhui, China
Beijing Ditan Hospital Capital Medical University
Beijing, Beijing Municipality, China
Beijing Luhe Hospital,Capital Medical University
Beijing, Beijing Municipality, China
Peking University Third Hospital
Beijing, Beijing Municipality, China
Zhongshan Hospital Xiamen University
Xiamen, Fujian, China
Dongguan people's Hospital
Dongguan, Guangdong, China
Nanfang Hospital,South Medical Hospital
Guangzhou, Guangdong, China
The First Affiliated Hospital Of Guangzhou Medical University
Guangzhou, Guangdong, China
Traditional Chinese Medicine Hospital of Guangdong Province
Guangzhou, Guangdong, China
Huizhou Municipal Central Hospital
Huizhou, Guangdong, China
...and 16 more locations
Time frame: Up to Day15
Time to Resolution of Fever
Time to resolution of fever was defined as the time between the initiation of the study treatment and the resolution of fever. The resolution of fever was defined as the time when the participant's self-measured axillary temperature became less than 37ºC and was maintained at less than 37ºC for a duration of at least 12 hours.
Time frame: Up to Day15
Proportion of patients reporting normal temperature
Defined as the percentage of patients whose axillary temperature dropped to less than 37ºC after the initiation of study treatment.
Time frame: Up to Day15
Percentage of subjects with virus titer detected
Influenza virus RNA was quantified from throat swabs.Proportion of patients positive for influenza virus titer is defined as the percentage of patients whose virus titer is not less than the lower limit of quantification among those assessed for virus titer measured by viral culture and quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) on Days 2,4, 6.
Time frame: Days 2,4, 6
Duration of detectable virus
Defined as the time from the start of treatment to the time when the titer is less than the lower limit of quantification measured by viral culture and quantitative reverse transcriptase polymerase chain reaction (qRT-PCR).
Time frame: Days 2,4, 6
Change in virus titer
Defined as the change from baseline in virus titer measured by viral culture and quantitative reverse transcriptase polymerase chain reaction (qRT-PCR).
Time frame: Days 2,4, 6
Change in viral RNA load
Defined as the change from baseline in viral RNA load measured by viral culture and quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) on Days 2, 4, 6.
Time frame: Days 2,4, 6
Incidence of influenza-related complications
Defined as the percentage of subjects in the analysis population who experience each influenza-related complication (sinusitis, otitis media, bronchitis, and pneumonia) as an adverse event after the initiation of the study treatment.
Time frame: Up to Day21
Time to return to normal activities of daily life
Participants were asked to record their activities of daily life on a scale from 0 (worst possible health) to 10 (normal activities of daily life). Time to return to normal activities of daily life defined as the time between the initiation of the study treatment and the return to normal activities of daily life. The return to normal activities of daily life is defined as the time when the subject assesses his/her activities as 10.Subjects with a baseline self-rated daily activity score of 10 are not included in this analysis.
Time frame: Up to Day15
Proportion of patients with the Serological conversion of neutralizing antibody titer relative to that in Visit 1 ≥4
Defined as the protprtion of patients with a ratio of 4 or more at Visit 5 antibody titer relative to Visit 1 titer
Time frame: Baseline and Day 21
Proportion of patients and frequency in combination use of acetaminophen.
The proportion of patients who use acetaminophen in the duration of the study
Time frame: Up to 21 days post-dose
Change in EQ-5D-5L
Defined as the change from baseline in the index value and that in EQ VAS score as calculated from the EQ-5D-5L questionnaire.
Time frame: Baseline up to Day 15