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Peginterferon Lambda-1a for the Prevention and Treatment of SARS-CoV-2 (COVID-19) Infection

Peginterferon Lambda-1a for the Prevention and Treatment of SARS-CoV-2 Infection

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04344600
Acronym
PROTECT
Enrollment
6
Registered
2020-04-14
Start date
2020-06-29
Completion date
2021-09-24
Last updated
2022-07-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sars-CoV-2 Infection

Keywords

SARS-CoV-2, COVID-19, Lambda interferon

Brief summary

This is a phase 2b prospective, randomized, single-blind, controlled trial of a single subcutaneous injection of peginterferon lambda-1a versus placebo for prevention of SARS-CoV-2 infection in non-hospitalized participants at high risk for infection due to household exposure to an individual with coronavirus disease (COVID-19). The study will also evaluate the regimens participants with asymptomatic SARS-CoV-2 infection detected at study entry. All participants will be followed for up to 12 weeks.

Interventions

DRUGPeginterferon lambda alfa-1a subcutaneous injection

Peginterferon lambda-1a 180 micrograms by subcutaneous injection

OTHERSaline

Saline subcutaneous injection

Sponsors

Eiger BioPharmaceuticals
CollaboratorINDUSTRY
Johns Hopkins University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)

Masking description

Single-blinded study

Intervention model description

Prospective, randomized, single-blind, controlled trial

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Willing and able to provide written informed consent * Peripheral capillary oxygen saturation (SpO2) ≥ 95% on room air at screening * Age ≥18 years

Exclusion criteria

* Hospitalized or impending hospitalization at the time of screening * Symptoms of cough, fever or shortness of breath within 72 hours * Prior or current treatment with other experimental or approved agents targeting SARS-CoV-2 or SARS-CoV-1 * Positive pregnancy test * Active autoimmune disease or sarcoidosis (with the exception of controlled thyroid disease) * Active decompensated liver disease (ascites, encephalopathy) * Active congestive heart failure

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With no Evidence of SARS-CoV-2 InfectionUp to 28 daysNumber of participants with no evidence of SARS-CoV-2 infection at or before study day 28.

Secondary

MeasureTime frameDescription
Time to no Detection of SARS-CoV-2Up to 14 daysResolution of SARS-CoV-2 infection in the upper respiratory tract as assessed by time (in days) to no detection of SARS-CoV-2 in two upper respiratory samples.

Countries

United States

Participant flow

Participants by arm

ArmCount
Peginterferon Lambda Alfa-1a
peginterferon lambda-1a (Lambda) 180 micrograms by subcutaneous injection for participants who are not infected with SARS-CoV-2 Peginterferon lambda alfa-1a subcutaneous injection: Peginterferon lambda-1a 180 micrograms by subcutaneous injection
2
Placebo
Placebo (saline) by subcutaneous injection for participants who are not infected with SARS-CoV-2 Saline: Saline subcutaneous injection
4
Total6

Baseline characteristics

CharacteristicPeginterferon Lambda Alfa-1aPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants2 Participants3 Participants
Age, Categorical
Between 18 and 65 years
1 Participants2 Participants3 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants4 Participants6 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
2 Participants3 Participants5 Participants
Sex: Female, Male
Female
2 Participants3 Participants5 Participants
Sex: Female, Male
Male
0 Participants1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 20 / 4
other
Total, other adverse events
0 / 20 / 4
serious
Total, serious adverse events
0 / 20 / 4

Outcome results

Primary

Number of Participants With no Evidence of SARS-CoV-2 Infection

Number of participants with no evidence of SARS-CoV-2 infection at or before study day 28.

Time frame: Up to 28 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Peginterferon Lambda Alfa-1aNumber of Participants With no Evidence of SARS-CoV-2 Infection2 Participants
PlaceboNumber of Participants With no Evidence of SARS-CoV-2 Infection4 Participants
Secondary

Time to no Detection of SARS-CoV-2

Resolution of SARS-CoV-2 infection in the upper respiratory tract as assessed by time (in days) to no detection of SARS-CoV-2 in two upper respiratory samples.

Time frame: Up to 14 days

Population: This outcome was not assessed because all participants were negative at the time of entering study and didn't test positive. No data was collected.

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026