NCT04552379

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,173

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Dec 2020

Shorter than P25 for phase_3

Geographic Reach
1 country

1 active site

Status
completed

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

Completed
27 days until next milestone

First Posted

Study publicly available on registry

September 17, 2020

Completed
3 months until next milestone

Study Start

First participant enrolled

December 1, 2020

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2021

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2021

Completed
Last Updated

September 10, 2021

Status Verified

December 1, 2020

Enrollment Period

6 months

First QC Date

August 21, 2020

Last Update Submit

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 COMPARATOR

Peginterferon 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.

Biological: Peginterferon beta-1a

Standard of Care

NO INTERVENTION

Standard 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.

Also known as: Plegridy
Interferon

Eligibility Criteria

Age18 Years - 79 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

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

Study Sites (1)

Pontificia Universidad Católica de Chile

Santiago, Chile

Location

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.

  • Iturriaga 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.

MeSH Terms

Conditions

Severe Acute Respiratory SyndromeCOVID-19

Interventions

peginterferon beta-1a

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract DiseasesPneumonia, ViralPneumoniaLung Diseases

Study Officials

  • 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

    PRINCIPAL INVESTIGATOR
  • Arturo Borzutzky, MD

    Pontificia Universidad Catolica de Chile, Santiago, Chile

    STUDY DIRECTOR
  • 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 CHAIR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: A prospective, cluster randomised trial of interferon versus standard of care. Index cases will be identified from databases of positive COVID-19 PCR patients from the virology lab,('Fever') clinics, outpatient clinics and hospital emergency room visits for possible COVID-19. Household contacts will be identified via the index cases and will be approached with the consent of the index case. Randomisation: Households will be randomised to receive IFN or standard of care (as recommended by the Public Health Department). Trial population: Index cases positively infected with SARS-CoV-2 and their exposed household contacts. Index cases will be recruited from databases of individuals with confirmed COVID-19 identified from COVID-19 ('Fever') clinics and emergency room visits in Santiago, Chile. Eligibility criteria: Households will be randomised only if cases and at least one treatment-eligible household contact meets all the inclusion criteria and none of the exclusion criteria.
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

We are evaluating the best way to share the information.

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.

Locations