Trial of Treatments for COVID-19 in Hospitalized Adults

Study Overview
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Brief Summary
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DisCoVeRy is a randomized controlled trial among adults (≥18-year-old) hospitalized for COVID-19. This study is an adaptive, randomized, open or blinded, depending on the drug to be evaluated, clinical trial to evaluate the safety and efficacy of possible therapeutic agents in hospitalized adult patients diagnosed with COVID-19. The study is a multi-centre/country trial that will be conducted in various sites in Europe with Inserm as sponsor. The study will compare different investigational therapeutic agents to a control group managed with the SoC including corticosteroids and anticoagulants. There will be interim monitoring to allow early stopping for safety and to introduce new therapies as they become available. If one therapy proves to be superior to others in the trial, this treatment may become part of the SoC for comparison(s) with new experimental treatment(s). In previous versions of the DisCoVeRy protocol, remdesivir, lopinavir/ritonavir with or without interferon ß-1a and hydroxychloroquine were evaluated as potential treatments for COVID-19. These treatments have been discontinued based on analyses review by both DSMC/DSMB, the Solidarity Executive Group and the DisCoVeRy steering committee. This version of the protocol, therefore, describes a randomized blinded placebo-controlled trial among adults (≥18-year-old) hospitalized for COVID-19 that randomly allocates them (1:1 ratio) between 2 arms: SoC + placebo versus SoC + AZD7442. Randomization will be stratified by region (according to the administrative definition in each country), antigenic status (positive or negative) obtained from the result of a rapid antigen test on nasopharyngeal swab performed at enrolment and vaccination initiation (yes or no). The primary analyses will be conducted on patients with antigen-positive results. A positive antigenic test is evidence of high viral shedding consistent with a recently started or uncontrolled infection. Overall, the number of antigen-negative patients will be at most 30% of all included subjects. The number of patients with vaccination (partly or fully) will be limited to 20% of all participants, split evenly between antigen positive and antigen negative patients (i.e. vaccinated patients can make up at most 20% of antigene positive patients and 20% of antigene negative patients). Sensitivity analyses will be performed in all patients, stratified by antigenic status and vaccination initiation. A global independent data and safety monitoring board (DSMB) monitors interim data to make recommendations about early study closure or changes to conduct, including adding or removing treatment arms. However, the current version of the protocol does not allow for efficacy or futility analysis, and the ability to add trial arms will be limited by the study being blinded and placebo-controlled during the investigation of AZD7442.

Detailed Description
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DisCoVeRy is a randomized controlled trial among adults (≥18-year-old) hospitalized for COVID-19. This study is an adaptive, randomized, open or blinded, depending on the drug to be evaluated, clinical trial to evaluate the safety and efficacy of possible therapeutic agents in hospitalized adult patients diagnosed with COVID-19. The study is a multi-centre/country trial that will be conducted in various sites in Europe with Inserm as sponsor. The study will compare different investigational therapeutic agents to a control group managed with the SoC including corticosteroids and anticoagulants. There will be interim monitoring to allow early stopping for safety and to introduce new therapies as they become available. If one therapy proves to be superior to others in the trial, this treatment may become part of the SoC for comparison(s) with new experimental treatment(s). In previous versions of the DisCoVeRy protocol, remdesivir, lopinavir/ritonavir with or without interferon ß-1a and hydroxychloroquine were evaluated as potential treatments for COVID-19. These treatments have been discontinued based on analyses review by both DSMC/DSMB, the Solidarity Executive Group and the DisCoVeRy steering committee. This version of the protocol, therefore, describes a randomized blinded placebo-controlled trial among adults (≥18-year-old) hospitalized for COVID-19 that randomly allocates them (1:1 ratio) between 2 arms: SoC + placebo versus SoC + AZD7442. Randomization will be stratified by region (according to the administrative definition in each country), antigenic status (positive or negative) obtained from the result of a rapid antigen test on nasopharyngeal swab performed at enrolment and vaccination initiation (yes if at least one injection of any vaccine against SARS-CoV-2 was reveived prior to enrolment whatever the delay or no). The primary analyses will be conducted on patients with antigen-positive results. A positive antigenic test is evidence of high viral shedding consistent with a recently started or uncontrolled infection. Overall, the number of antigen-negative patients will be at most 30% of all included subjects. The number of patients with vaccination (partly or fully) will be limited to 20% of all participants, split evenly between antigen positive and antigen negative patients (i.e. vaccinated patients can make up at most 20% of antigene positive patients and 20% of antigene negative patients). Sensitivity analyses will be performed in all patients, stratified by antigenic status and vaccination initiation. A global independent data and safety monitoring board (DSMB) monitors interim data to make recommendations about early study closure or changes to conduct, including adding or removing treatment arms. However, the current version of the protocol does not allow for efficacy or futility analysis, and the ability to add trial arms will be limited by the study being blinded and placebo-controlled during the investigation of AZD7442. All subjects will undergo a series of efficacy and safety assessments, including laboratory assays. Subjects will be assessed at baseline, and at Days 3, 8 and 15 while hospitalized. Patients will be contacted by phone at Day 15 for evaluation of the Primary Endpoint if they have been discharged prior to Day 15-, and 14-days following hospital discharge for efficacy assessment. Further follow-up assessments will be organized at Days 29, 90, 180, 365 and 456. If discharged from the hospital, days 29 and 90 assessments will be organized as outpatients' consultations for all. For Days 180 and 365 assessments, a subset of 25% of patients enrolled in centers with available resources and selected at Day 90 will be evaluated during a medical consultation, while the other will be contacted by phone. For Day 456, all patients will be contacted by phone. Nasopharyngeal swabs (NP) or lower respiratory tract samples will be obtained at baseline (Day 1 pre-treatment) and at Days 3, 8, 15 (while hospitalized) and 29 (while hospitalized or, if discharged from the hospital, in the outpatient setting). Blood samples will be obtained at baseline (Day 1 pre-treatment) and at Days 3, 8, 15 (while hospitalized), at Days 29 and 90, and at Days 180 and 365 (for the subset of patients evaluated during a medical consultation at these times). Thoracic computed tomography (CT)-scan will be obtained at baseline, depending on the centre's imagery capacities.

Official Title
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Multi-centre, Adaptive, Randomized Trial of the Safety and Efficacy of Treatments of COVID-19 in Hospitalized Adults

Conditions
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Corona Virus Infection

Intervention / Treatment
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* Drug: Remdesivir
* Drug: Lopinavir/ritonavir
* Drug: Interferon Beta-1A
* Drug: Hydroxychloroquine
* Other: Standard of care
* Drug: AZD7442
* Other: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult ≥18 years of age at the time of enrolment Hospitalized patients with any of the following criteria: the presence of pulmonary rales/crackles on clinical exam OR SpO2 ≤ 94% on room air OR requirement of supplementary oxygen including high flow oxygen devices or non-invasive ventilation A time between onset of symptoms and randomization of less than 11 days A positive SARS-CoV-2 PCR performed on a NP swab within the 5 days preceding randomization The result of a rapid antigen test performed on a NP swab within the 6 hours preceding randomization Contraceptive use by men or women. Male participants: Contraception for male participants is required; to avoid the transfer of any fluids, all male participants must use a condom from Day 1 and agree to continue for 90 days following administration of IMP. Female participants: Women of child-bearing potential must agree to use contraception for 365 days following administration of IMP Exclusion Criteria: Refusal to participate expressed by patient or legally authorized representative Need for invasive mechanical ventilation and/or ECMO at the time of enrolment Spontaneous blood ALT/AST levels > 5 times the upper limit of normal Glomerular filtration rate (GFR) < 15 mL/min or requiring maintenance dialysis Pregnancy or breast-feeding Anticipated transfer to another hospital, which is not a study site within 72 hours following randomization Known history of allergy or reaction to any component of the study drug formulation. Previous hypersensitivity, infusion-related reaction, or severe adverse reaction following administration of monoclonal or polyclonal antibodies. Any prior receipt of investigational or licensed other mAb/biologic indicated for the prevention of SARS-CoV-2 infection or COVID-19, and for those not vaccinated, expected receipt of vaccine in the 30 days following hospital discharge, according to current recommendation in each country. Any medical condition which, in the judgment of the investigator, could interfere with the interpretation of the trial results or that preludes to protocol adherence.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: From March 22, 2020 to May 24, 2020, the study randomized participants 1:1:1:1:1 to standard of care alone (control) or with investigational product added. From May 24, 2020 to June 29, 2020, the study randomized participants 1:1:1:1 to standard of care alone (control) or with investigational product added. From June 29, 2020 to January 19,2021, the study randomized participants 1:1 to standard of care alone (control) or with investigational product added. Since April, 2021, the study will randomize participants 1:1 to standard of care with placebo (control) or standard of care with investigational product added.
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Remdesivir<br>Remdesivir will be administered as a 200 mg intravenous loading dose on Day 1, followed by a 100 mg once-daily intravenous maintenance dose for the duration of the hospitalization up to a 10 days total course. n=475 | Drug: Remdesivir<br>* The lyophilized formulation of Remdesivir is a preservative-free, white to off-white or yellow, lyophilized solid containing 100 mg of Remdesivir to be reconstituted with 19 mL of sterile water for injection and diluted into IV infusion fluids prior to IV infusion. Following reconstitution, each vial contains a 5 mg/mL Remdesivir concentrated solution with sufficient volume to allow withdrawal of 20 mL (100 mg of remdesivir). It is supplied as a sterile product in a single-use, 30 mL, Type 1 clear glass vial.<br>Other: Standard of care<br>* Standard of care<br>|
| Experimental: Lopinavir/ritonavir (stopped on June 29, 2020)<br>Lopinavir/ritonavir (400 lopinavir mg/100 mg ritonavir) will be administered every 12 h for 14 days in tablet form. For patients who are unable to take medications by mouth, the lopinavir/ritonavir (400 lopinavir mg/100 mg ritonavir) will be administered as a 5-ml suspension every 12 h for 14 days via a pre-existing or newly placed nasogastric tube. n=620 | Drug: Lopinavir/ritonavir<br>* The oral tablets of lopinavir/ritonavir contain 200 mg lopinavir, 50 mg ritonavir. They have a yellow colour, film-coated, ovaloid shape debossed with the a logo and the code KA. The oral solution for patients who cannot swallow is a light yellow to orange colored liquid containing 400 mg lopinavir and 100 mg ritonavir per 5 mL (80 mg lopinavir and 20 mg ritonavir per mL).<br>Other: Standard of care<br>* Standard of care<br>|
| Experimental: Lopinavir/ritonavir plus Interferon ß-1a (stopped on June 29)<br>Lopinavir/ritonavir (400 lopinavir mg/100 mg ritonavir) will be administered every 12 h for 14 days in tablet form. For patients who are unable to take medications by mouth, the lopinavir/ritonavir (400 lopinavir mg/100 mg ritonavir) will be administered as a 5-ml suspension every 12 h for 14 days via a pre-existing or newly placed nasogastric tube. Interferon ß1a will be administered subcutaneously at the dose of 44 µg for a total of 3 doses in 6 days (day 1, day 3, day 6). n=620 | Drug: Lopinavir/ritonavir<br>* The oral tablets of lopinavir/ritonavir contain 200 mg lopinavir, 50 mg ritonavir. They have a yellow colour, film-coated, ovaloid shape debossed with the a logo and the code KA. The oral solution for patients who cannot swallow is a light yellow to orange colored liquid containing 400 mg lopinavir and 100 mg ritonavir per 5 mL (80 mg lopinavir and 20 mg ritonavir per mL).<br>Drug: Interferon Beta-1A<br>* IFN-ß-1a is supplied as a sterile solution containing no preservative available in a prefilled syringe. It will be provided as a single-dose prefilled graduated syringe with 44 µg per 0.5 mL. The liquid should be clear to slightly yellow. Do not use if the liquid is cloudy, discolored or contains particles. Use a different syringe.<br>Other: Standard of care<br>* Standard of care<br>|
| Experimental: Hydroxychloroquine (stopped on May 24, 2020)<br>Hydroxychloroquine will be administered orally as a loading dose of 400 mg twice daily for one day followed by 400 mg once daily for 9 days. The loading dose of hydroxychloroquine through a nasogastric tube will be increased to 600 mg twice a day for one day, followed by a maintenance dose of 400 mg once a day for 9 days n=620 | Drug: Hydroxychloroquine<br>* Hydroxychloroquine is supplied as film-coated 200 mg tablets. Hydroxychloroquine sulfate tablets are presented as white or whitish, peanut-shaped, oblong or round film-coated tablets containing 200 mg of hydroxychloroquine sulfate (equivalent to 155 mg base).<br>Other: Standard of care<br>* Standard of care<br>|
| Active Comparator: Standard of care alone<br>Standard of care alone before March, 2021. | Other: Standard of care<br>* Standard of care<br>|
| Experimental: AZD7442<br>Participants randomized to the AZD7442 group will receive a total dose of 600 mg AZD7442 via a co-administered (300 mg AZD8895 and 300 mg AZD1061) single IV infusion on Day 1. n=620 | Other: Standard of care<br>* Standard of care<br>Drug: AZD7442<br>* AZD7442 will be supplied as separate vials of AZD8895 and AZD1061 containing 150 mg colorless to slightly yellow, clear to opalescent solutions for injection.<br>|
| Active Comparator: Standard of care with placebo<br>Standard of care with placebo since April, 2021 n=620 | Other: Standard of care<br>* Standard of care<br>Other: Placebo<br>* Since April, 2021, the placebo will be a 0.9% (w/v) NaCl solution for infusion also called saline. The placebo will be supplied as a single 10-mL, clear and colorless vial.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of subjects reporting each severity rating on a 7-point ordinal scale | Not hospitalized, no limitations on activities Not hospitalized, limitation on activities; Hospitalized, not requiring supplemental oxygen; Hospitalized, requiring supplemental oxygen; Hospitalized, on non-invasive ventilation or high flow oxygen devices; Hospitalized, on invasive mechanical ventilation or ECMO; Death. | Day 15 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Status on an ordinal scale | Percentage of subjects reporting each severity rating on a 7-point on an ordinal scale | Days 29, 90, 180 and 365 | 
| National Early Warning Score 2 (NEWS-2 score) | Change from baseline in NEWS-2. | Days 3, 8, 15, and 29 | 
| Number of oxygenation free days in the first 28 days |  | 29 days | 
| Incidence of new oxygen use, non-invasive ventilation or high flow oxygen devices during the trial. |  | 29 days | 
| Ventilator free days in the first 28 days |  | 29 days | 
| Incidence of new mechanical ventilation use during the trial. |  | 29 days | 
| Need for mechanical ventilation or death by Day 15 | Proportion of patients with mechanical ventilation or death at day 15 | Day 15 | 
| Hospitalization | Time to hospital discharge (days). | 29 days | 
| Mortality | Rate of mortality | In hospital, Days 29, 90, 180, 365, 456 | 
| Occurrence of new hospitalization |  | Days 90, 180 and 365 | 
| Occurrence of confirmed re-infection with SARS-CoV-2 |  | Days 90, 180 and 365 | 
| Cumulative incidence of serious adverse events (SAEs) |  | 29 days | 
| Cumulative incidence of Grade 1- 2 hypersensitivity- related and infusion related AEs until D29 visit |  | 29 days | 
| Cumulative incidence of Grade 3 and 4 adverse events (AEs) |  | 29 days | 
| Number of participants with a discontinuation or temporary suspension of study drugs (for any reason) |  | 29 days | 
| Cumulative incidence of AEs of Special Interest |  | 29 days | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Pneumonia, COVID-19, SARS-CoV-2