Clinical Trial Results:
A Multicenter, Observational, 6-Month Follow-up Study of Patients With COVID-19 Previously Enrolled in a RO7496998 (AT-527) Study
Summary
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EudraCT number |
2021-000627-12 |
Trial protocol |
BE PT DK DE IT RO |
Global end of trial date |
16 Mar 2022
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Results information
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Results version number |
v1(current) |
This version publication date |
25 Sep 2022
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First version publication date |
25 Sep 2022
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
CV43140
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT05059080 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
F. Hoffmann-La Roche AG
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Sponsor organisation address |
Grenzacherstrasse 124, Basel, Switzerland, CH-4070
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Public contact |
F. Hoffmann-La Roche AG, F. Hoffmann-La Roche AG, 41 616878333, global.trial_information@roche.com
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Scientific contact |
F. Hoffmann-La Roche AG, F. Hoffmann-La Roche AG, 41 616878333, global.trial_information@roche.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
Yes
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EMA paediatric investigation plan number(s) |
EMEA-002963-PIP01-21 | ||
Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
16 Mar 2022
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
16 Mar 2022
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Was the trial ended prematurely? |
Yes
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General information about the trial
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Main objective of the trial |
This study evaluated the long-term sequelae of COVID-19 in subjects diagnosed with COVID-19 who previously enrolled in a RO7496998 (AT-527) study (i.e. parent study 2020-005759-18 [CV43043]), for approximately 6 months after the end of the parent study.
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Protection of trial subjects |
All study subjects were required to read and sign an Informed Consent Form.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
15 Jun 2021
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Argentina: 1
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Country: Number of subjects enrolled |
Belgium: 8
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Country: Number of subjects enrolled |
Brazil: 5
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Country: Number of subjects enrolled |
Denmark: 2
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Country: Number of subjects enrolled |
Germany: 3
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Country: Number of subjects enrolled |
Mexico: 15
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Country: Number of subjects enrolled |
Romania: 1
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Country: Number of subjects enrolled |
Switzerland: 1
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Country: Number of subjects enrolled |
Turkey: 19
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Country: Number of subjects enrolled |
Ukraine: 17
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Worldwide total number of subjects |
72
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EEA total number of subjects |
14
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
1
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Adults (18-64 years) |
69
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From 65 to 84 years |
2
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85 years and over |
0
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Recruitment
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Recruitment details |
Participants were enrolled into the study at 27 investigational sites in 10 countries: Mexico, Ukraine, Turkey, Brazil, Belgium, Denmark, Argentina, Germany, Romania, and Switzerland. | ||||||||||||
Pre-assignment
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Screening details |
Participants diagnosed with COVID-19, who previously enrolled in a RO7496998 (AT-527) study (i.e. parent study 2020-005759-18 [CV43043]), were enrolled in this study after the end of the parent study. | ||||||||||||
Period 1
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Period 1 title |
Overall Study (overall period)
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Is this the baseline period? |
Yes | ||||||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | ||||||||||||
Arms
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Arm title
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All Participants | ||||||||||||
Arm description |
Participants were previously enrolled in a RO7496998 (AT-527) study (i.e. parent study 2020-005759-18 [CV43043]). | ||||||||||||
Arm type |
No intervention | ||||||||||||
Investigational medicinal product name |
AT-527
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Investigational medicinal product code |
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Other name |
RO7496998
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
In the parent study participants were randomized 1:2 to receive either placebo or AT-527 550 milligrams (mg). AT-527 (RO7496998) was administered twice daily (BID) for 5 days. No study drug was administered in this follow-up study.
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Investigational medicinal product name |
Placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
In the parent study participants were randomized 1:2 to receive either placebo or AT-527 550 milligrams (mg). The dose and regimen of the placebo matched that of AT-527 (RO7496998). No placebo was administered in this follow-up study.
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Baseline characteristics reporting groups
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Reporting group title |
All Participants
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Reporting group description |
Participants were previously enrolled in a RO7496998 (AT-527) study (i.e. parent study 2020-005759-18 [CV43043]). | |||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
All Participants
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Reporting group description |
Participants were previously enrolled in a RO7496998 (AT-527) study (i.e. parent study 2020-005759-18 [CV43043]). |
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End point title |
Percentage of Participants With COVID-19 Symptoms Assessed through the COVID-19 Symptom Diary from Baseline up to Month 6 [1] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
COVID-19 symptoms were evaluated using the COVID-19 Symptom Diary. The COVID-19 Symptom Diary included the following 14 items: nasal congestion or runny nose, sore throat, cough, shortness of breath, muscle or body aches, fatigue, headache, chills/sweats, feeling hot or feverish, nausea, vomiting, diarrhea, sense of smell over the past 7 days and sense of taste over the past 7 days. The severity of items 1-12 were recorded on a 4-point Likert scale (i.e none/mild/moderate/severe). Items 13-14 were recorded on a 3-point Likert scale (i.e. same as usual/less than usual/no sense). Reported here is the percentage of participants with COVID-19 symptoms (mild/moderate/severe or less than usual/no sense) recorded during week 4 of each month following the baseline assessment. Here, n indicates the number of participants analyzed at each time point. BL=Baseline, M1=Month 1 -Week 4, M2=Month 2 - Week 4, M3=Month 3 - Week 4, M4=Month 4 - Week 4, M5=Month 5 - Week 4, M6=Month 6 - Week 4
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End point type |
Primary
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End point timeframe |
Baseline, Month 1 - Week 4, Month 2 - Week 4, Month 3 - Week 4, Month 4 - Week 4, Month 5 - Week 4, Month 6 - Week 4
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Notes [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: The primary analysis was planned to be descriptive in nature and there were no plans for formal hypothesis testing in the analysis of the primary endpoint. |
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No statistical analyses for this end point |
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End point title |
Dyspnea Symptoms Assessment Score through the Patient Reported Outcomes Measurement Information System - Short Form (PROMIS-SF) - Dyspnea Questionnaire | ||||||||||||||||||||||
End point description |
The PROMIS-SF-Dyspnea Questionnaire is a 10-item questionnaire to evaluate the impact of dyspnea on specific activities. Participants self-assessed the severity of shortness of breath and difficulty of breathing in response to specific activities with a recall of the past 7 days. The PROMIS SF-Dyspnea Severity instrument is scored on a 4-point Likert scale, with an option to indicate that an activity had not been performed. Total score range is 0-30, where a higher score indicates a higher symptom severity of dyspnea.
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End point type |
Secondary
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End point timeframe |
Baseline, Month 1, Month 2, Month 3, Month 4, Month 5, Month 6
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No statistical analyses for this end point |
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End point title |
Respiratory-specific Health-related Quality of Life Score as Assessed by the St. George's Respiratory Questionnaire (SGRQ) | ||||||||||||||||||||||
End point description |
The SGRQ is a 50-item respiratory-specific health-related quality of life instrument that measures health impairment. The questionnaire contains 3 domains: symptoms, activity, and impacts. Items were assessed on various response scales, including a 5-point Likert scale and True/False scale. Each scale is scored from 0 to 100, and the total score represents the weighted average of these three subscores. Higher scores correspond to worse quality of life. The SGRQ had a recall specification of 4 weeks. Here, n indicates the number of participants analyzed at each time point.
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End point type |
Secondary
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End point timeframe |
Baseline, Month 1, Month 2, Month 3, Month 4, Month 5, Month 6
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No statistical analyses for this end point |
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End point title |
Percentage of Participants with COVID-19 Related Medically-Attended Visits | ||||||||
End point description |
COVID-19-related medically-attended visits were defined as hospitalization, ER visit, urgent care visit, physician’s office visit, or telemedicine visit with the primary reason for the visit being COVID-19 or COVID-19-related symptoms. The analysis population included all enrolled participants in the study.
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End point type |
Secondary
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End point timeframe |
Up to 6 months
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No statistical analyses for this end point |
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End point title |
Percentage of Participants with Death Attributable to Progression of COVID-19 | ||||||
End point description |
The analysis population included all enrolled participants in the study.
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End point type |
Secondary
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End point timeframe |
Up to 6 months
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No statistical analyses for this end point |
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End point title |
Percentage of Participants Re-Infected with Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) | ||||||
End point description |
Reinfection was defined as any nasopharyngeal (NP) swab that was positive for SARS-CoV-2 infection via reverse-transcriptase polymerase chain reaction (RT-PCR), taken when clinically indicated based on symptoms. The analysis population included all enrolled participants in the study.
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End point type |
Secondary
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End point timeframe |
Up to 6 months
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No statistical analyses for this end point |
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End point title |
Percentage of Participants with any Post-Treatment Infection | ||||||||
End point description |
Post-treatment infections were defined as any adverse event with a primary system organ class of infections and infestations. The analysis population included all enrolled participants in the study.
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End point type |
Secondary
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End point timeframe |
Up to 6 months
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No statistical analyses for this end point |
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End point title |
Percentage of Participants with COVID-19-Related Complications | ||||||||
End point description |
COVID-19 related complications included pneumonia, acute respiratory failure, sepsis, coagulopathy, pericarditis and/or myocarditis, and cardiac failure. The analysis population included all enrolled participants in the study.
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End point type |
Secondary
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End point timeframe |
Up to 6 months
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No statistical analyses for this end point |
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End point title |
Percentage of Participants with Adverse Events (AEs) | ||||||||
End point description |
An AE is any untoward medical occurrence in a clinical investigation subject administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any of the following: any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the medicinal product, any new disease or exacerbation of an existing disease, recurrence of an intermittent medical condition not present at baseline or related to a protocol-mandated intervention. The safety population included all enrolled participants in the study.
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End point type |
Secondary
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End point timeframe |
Up to 6 months
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
Up to 6 months
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Adverse event reporting additional description |
All AEs/Serious AEs continuing/persisting from the parent study or any new AEs with an onset date on or after the first day of enrollment and during this follow-up study are displayed. The safety population included all participants enrolled in the study.
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
24.1
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Reporting groups
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Reporting group title |
All Participants
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Reporting group description |
Participants were previously enrolled in a RO7496998 (AT-527) study (i.e. parent study 2020-005759-18 [CV43043]). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? No | |||||||
Interruptions (globally) |
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Were there any global interruptions to the trial? Yes | |||||||
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Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||||||
None reported |