The Containing Coronavirus Disease 19 (COVID-19) Trial
ConCorD-19
A Cluster Randomised Trial of Interferon Versus Standard of Care in the Reduction of Transmission of SARS-Cov-2. The Containing Coronavirus Disease 19 Trial (ConCorD-19)
1 other identifier
interventional
1,173
1 country
1
Brief Summary
In recent months severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) has emerged as a novel human pathogen and, susceptibility amongst humans is presumed to be universal. Prevention measures of COVID-19 have included distancing, quarantines, use of facemasks in public places, and hand hygiene measures. Mandatory quarantines have also been applied on index cases and their contacts, as well as an active search for asymptomatic patients. Current strategies to reduce the spread of SARS-CoV-2 do not include measures that could prevent transmission prior to the onset of symptoms. Subjects infected with SARS-CoV-2 have been known to shed virus and be contagious for up to 5 days prior to developing symptoms ('pre-symptomatic transmission'). In fact, nearly 60% of all infected subjects can shed virus pre-symptomatically. Pre- or even asymptomatic shedding occurs across all age groups, contributing to the rapidly expanding pandemic. Post-exposure prophylaxis (PEP) using type 1 interferon (IFN) can potentially eliminate the spread of SARS-CoV-2. IFN could reduce the period of viral shedding by \~1 week. Since pre-symptomatic shedding of virus can start up to 5 days prior to symptom onset, our approach of a PEP intervention to all contacts recently exposed to a case could possibly entirely interrupt the spread of the virus, and with that, the pandemic. The current study focuses on prevention of the disease in addition to its treatment. Thus, the key distinction between these other trials and this study is that this study focuses on containing coronavirus (i.e. cause) in the community, rather than simply its treatment (i.e. consequence) in the individual. Viral spread could be eliminated through interventions effective at abolishing viral transmission. However, such post-exposure prophylaxis interventions, that is initiation of antiviral therapy in pre-infectious contacts to reduce or even eliminate such spread, must be safe since they are given to asymptomatic and possibly uninfected subjects. In none of the previous clinical trials of IFN therapy for SARS-CoV-2 have serious adverse events been recorded. Furthermore, the IFN chosen for this study (pegylated IFN 1b) has been extensively studied in clinical trials, and has been in clinical use for years for multiple sclerosis. Pegylated IFN formulations allow for weekly injections while maintaining serum levels and limiting dose-dependent side effects. Together these data support a sound safety profile for the planned intervention. The aim of this study is to ascertain whether IFN administered to index cases and household contacts of an index case, starting immediately following confirmed exposure (index case confirmed positive for SARS-CoV-2), will reduce duration of SARS-CoV-2 detectable by PCR in the index cases, and incidence of SARS-CoV-2 detectable by PCR in household contacts.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Dec 2020
Shorter than P25 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 21, 2020
CompletedFirst Posted
Study publicly available on registry
September 17, 2020
CompletedStudy Start
First participant enrolled
December 1, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 31, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
June 30, 2021
CompletedSeptember 10, 2021
December 1, 2020
6 months
August 21, 2020
September 2, 2021
Conditions
Outcome Measures
Primary Outcomes (2)
The proportion of index cases shedding SARS-CoV-2, at Day 11, in the active arm compared to the standard of care arm.
Day 11
The proportion of household contacts shedding SARS-CoV-2, at Day 11, in the active arm compared to the standard of care arm.
Day 11
Secondary Outcomes (4)
Duration (in days) of SARS-CoV-2 by PCR of samples taken on study days 1, 6, 11, 16, 21, and 29.
Days 1,6,11, 21 and 29
Number of household contacts of participants in the IFN arm with positive upper airway PCR compared to that in the standard of care arm at day 1 & 11, and seroconversion (Ig) over the study period, up to day 29.
Days 1,11 and 29
The proportion of infected cases in the active arm that are hospitalised or die due to COVID-19, as compared to the proportion in the standard of care arm.
Days 1 to 29
Incidence and severity of reported adverse events in the interferon arm compared to the standard of care arm.
Days 1 to 29
Study Arms (2)
Interferon
ACTIVE COMPARATORPeginterferon beta-1alfa will be made available from Biogen Inc. Switzerland. 125 micrograms of pegylated IFNß1alfa (PLEGRIDY, Biogen) administered on Study Days 1, 6 and 11 (i.e. for a total of 3 doses) via subcutaneous injection.
Standard of Care
NO INTERVENTIONStandard of Care; following national guidelines regarding self-isolation and infection prevention
Interventions
Administration of trial drug: PLEGRIDY is given by an injection under the skin (subcutaneous injection). It will be administered to participants in accordance with product insert instructions by appropriately trained trial staff for whom administration of subcutaneous injections is within their normal scope of practice (e.g. RN or MD). They will wait for 20 mins after the last individual receives the interferon before leaving a residence. Administering staff will be supplied with appropriate PPE, trained in the use of this equipment and protocols for infection control, and will always attend in pairs. PLEGRIDY will be administered in the home of the participants. Due to the heat-labile nature of the trial product (storage required at \~4oC) a verified English Spanish version of the product label will be printed by a GMP certified company and applied to the product and patient band just at the time of use.
Eligibility Criteria
You may qualify if:
- Index Cases:
- Provided a signed and dated informed consent form
- Aged 18 to \<80 years of age
- Confirmed SARS-CoV-2 diagnosis by PCR within 72 hours of first treatment dose
- The first known diagnosis in the household
- Not currently enrolled in a clinical trial and agree to not take any other investigational treatments over the next 28 days
- Must plan to remain resident in the household during the study
- Lives in household with at least one other 'treatment-eligible household contact'
- Treatment-eligible Household Contacts:
- Provided a signed and dated informed consent form
- Aged 18 to \<80 years of age,
- Not currently enrolled in a clinical trial and agree to not take any other investigational treatments over the next 28 days
- Must plan to remain resident in the household during the study
- No history of previously confirmed SARS-CoV-2 diagnosis
- Treatment-ineligible Household Contacts:
- +1 more criteria
You may not qualify if:
- Not currently enrolled in a clinical trial and agree to not take any other investigational treatments over the next 28 days
- Must plan to remain resident in the household during the study
- No history of previously confirmed SARS-CoV-2 diagnosis
- Index Cases and Treatment-eligible Household contacts:
- Inability to take medications orally or injected
- Known sensitivity/allergy to interferons or use of interferons for another indication
- Known adverse drug-drug interactions with any study drugs
- Malignancy
- Known clinical immune deficiency
- Pregnancy or unwillingness, of female participants of childbearing potential to use recognised methods of birth control/contraception during the trial period,
- Retinopathy,
- Known grade 4 or 5 chronic kidney or liver disease,
- Known arrhythmias,
- Known autoimmune diseases or chronic inflammatory disease,
- Chronic liver disease,
- +6 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Pontificia Universidad Catolica de Chilelead
- Telethon Kids Institutecollaborator
Study Sites (1)
Pontificia Universidad Católica de Chile
Santiago, Chile
Related Publications (2)
Castro-Rodriguez JA, Fish EN, Montgomery ST, Kollmann TR, Iturriaga C, Shannon C, Karpievitch Y, Ho J, Chen V, Balshaw R, Ben-Othman R, Aniba R, Gidi-Yunge F, Hartnell L, Hancock DG, Perez-Mateluna G, Urzua M, Tebbutt SJ, Garcia-Huidobro D, Perret C, Borzutzky A, Stick SM. Interferon beta-1a ring prophylaxis to reduce household transmission of SARS-CoV-2: a cluster randomised clinical trial. EClinicalMedicine. 2023 Jul 20;62:102082. doi: 10.1016/j.eclinm.2023.102082. eCollection 2023 Aug.
PMID: 37538539DERIVEDIturriaga C, Eiffler N, Aniba R, Ben-Othman R, Perez-Mateluna G, Meyer JKV, Fish EN, Kollmann TR, Severino N, Stick S, Borzutzky A, Perret C, Castro-Rodriguez JA, Garcia-Huidobro D. A cluster randomized trial of interferon ss-1a for the reduction of transmission of SARS-Cov-2: protocol for the Containing Coronavirus Disease 19 trial (ConCorD-19). BMC Infect Dis. 2021 Aug 13;21(1):814. doi: 10.1186/s12879-021-06519-4.
PMID: 34388972DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jose A Castro-Rodriguez, MD,PhD
Pontificia Universidad Catolica de Chile, Santiago, Chile
- PRINCIPAL INVESTIGATOR
Stephen Stick, MD,PhD
Telethon Kids Institute, University of Western Australia, Perth, Australia
- STUDY DIRECTOR
Arturo Borzutzky, MD
Pontificia Universidad Catolica de Chile, Santiago, Chile
- STUDY CHAIR
Carolina Iturriaga, NP
Pontificia Universidad Catolica de Chile, Santiago, Chile
- STUDY CHAIR
Tobias Kollmann, MD,PhD
Telethon Kids Institute, University of Western Australia, Perth, Australia
- STUDY CHAIR
Eleanor N Fish, PhD
Department of Immunology, University of Toronto, Canada
- STUDY CHAIR
Cecilia Perret, MD
Pontificia Universidad Catolica de Chile, Santiago, Chile
- STUDY CHAIR
Diego Garcia-Huidobro, MD,PhD
Pontificia Universidad Catolica de Chile, Santiago, Chile
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 21, 2020
First Posted
September 17, 2020
Study Start
December 1, 2020
Primary Completion
May 31, 2021
Study Completion
June 30, 2021
Last Updated
September 10, 2021
Record last verified: 2020-12
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR
- Time Frame
- We are evaluating the best time to share the information.
- Access Criteria
- We are evaluating the best way to share the information.
We are evaluating the best way to share the information.