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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT04859517
Other study ID # ADG20-PREV-001
Secondary ID
Status Terminated
Phase Phase 2/Phase 3
First received
Last updated
Start date April 27, 2021
Est. completion date November 4, 2022

Study information

Verified date November 2022
Source Invivyd, Inc.
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This placebo-controlled study is intended to evaluate ADG20's safety and ability to prevent COVID-19 infection.


Description:

This is a Phase 2/3, multicenter, double-blind, placebo-controlled, randomized study of the mAb ADG20 in the prevention of symptomatic COVID-19 in adults and adolescents with no known history of SARS-CoV-2 infection but whose circumstances place them at increased risk of acquiring SARS-CoV-2 infection and developing symptomatic COVID-19. This objective will be independently evaluated in a cohort of participants with reported recent exposure to an individual diagnosed with a SARS-CoV-2 infection (post-exposure prophylaxis) and in a cohort of participants with no reported exposure to SARS-CoV-2 ( pre-exposure prophylaxis). These cohorts will enrich for participants whose advanced age (≥55 years old) or health status places them at risk for severe COVID-19 or COVID-19 complications.


Recruitment information / eligibility

Status Terminated
Enrollment 5951
Est. completion date November 4, 2022
Est. primary completion date April 11, 2022
Accepts healthy volunteers No
Gender All
Age group 12 Years and older
Eligibility Inclusion Criteria: - Tests negative for current or previous SARS-CoV-2 infection by RT-PCR and serology (Pre-exposure population only) - Is at high risk of SARS-CoV-2 infection as assessed by the Investigator: 1. Post-exposure population: exposure to an individual with a diagnosis of SARS-CoV-2 infection (index case). Note: Participants with recent exposure to a laboratory-confirmed index case must be asymptomatic and randomized within 5 days (120 hours) of collection of the index case's positive SARS-CoV-2 diagnostic test. 2. Pre-exposure population: Occupational, housing, recreational and/or social conditions that are likely to increase risk of exposure to SARS-CoV-2. - Agrees to defer receipt of COVID-19 vaccination for minimum of 180 days (6 months) after dosing Exclusion Criteria: - Has received (1) a SARS-CoV-2 vaccine, (2) mAb or (3) convalescent plasma from a person who has recovered from COVID-19 or prior participation in SARS-CoV2 vaccine, convalescent plasma, or mAb clinical trial any time prior to participation in the study. - Receipt of any investigational product within 30 days or 5 half lives before the day of enrollment. - Is acutely ill or febrile 72 hours before or at Screening or has other COVID-19 symptoms including cough, fatigue, muscle or body aches, headache, or loss of taste or smell. Fever is defined as a body temperature =38.0°C (=100.4°F). - Has received or plans to receive a non-COVID-19 vaccine within 28 days before or after dosing (except for seasonal influenza vaccine, which is not permitted within 14 days before or after dosing). NOTE: Other protocol defined inclusion/exclusion criteria apply

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
ADG20
Single dose of ADG20
Placebo
Single dose of placebo

Locations

Country Name City State
Argentina Invivyd Investigative Site Ciudad Autonoma de Buenos Aire Buenos Aires
Argentina Invivyd Investigative Site Mar Del Plata Buenos Aires
Argentina Invivyd Investigative Site Munro Buenos Aires
Argentina Invivyd Investigative Site Ramos Mejía Buenos Aires
Argentina Invivyd Investigative Site Rosario Santa Fe
Argentina Invivyd Investigative Site Rosario Sante Fe
Czechia Invivyd Investigative Site Ostrava
Czechia Invivyd Investigative Site Praha
Czechia Invivyd Investigative Site Rychnov Nad Knežnou
Georgia Invivyd Investigative Site Batumi
Georgia Invivyd Investigative Site Kutaisi
Georgia Invivyd Investigative Site Rust'avi
Georgia Invivyd Investigative Site Tbilisi
Georgia Invivyd Investigative Site Tbilisi
Georgia Invivyd Investigative Site Tbilisi
Georgia Invivyd Investigative Site Tbilisi
Germany Invivyd Investigative Site Berlin
Moldova, Republic of Invivyd Investigative Site Chisinau
Poland Invivyd Investigative Site Kajetany
Poland Invivyd Investigative Site Lódz
Poland Invivyd Investigative Site Lublin
Poland Invivyd Investigative Site Siedlce
Poland Invivyd Investigative Site Skierniewice
Poland Invivyd Investigative Site Swidnica
Poland Invivyd Investigative Site Warszawa
Poland Invivyd Investigative Site Zamosc
Romania Invivyd Investigative Site Bucuresti
Ukraine Adagio Investigative Site Kyiv
Ukraine Invivyd Investigative Site Kyiv
United States Invivyd Investigative Site Albuquerque New Mexico
United States Invivyd Investigative Site Banning California
United States Invivyd Investigative Site Beachwood Ohio
United States Invivyd Investigative Site Beaumont Texas
United States Invivyd Investigative Site Birmingham Alabama
United States Invivyd Investigative Site Burlington Massachusetts
United States Invivyd Investigative Site Caro Michigan
United States Invivyd Investigative Site Charlotte North Carolina
United States Invivyd Investigative Site Chicago Illinois
United States Invivyd Investigative Site Chula Vista California
United States Invivyd Investigative Site Cincinnati Ohio
United States Invivyd Investigative Site Clearwater Florida
United States Invivyd Investigative Site College Station Texas
United States Invivyd Investigative Site Corpus Christi Texas
United States Invivyd Investigative Site Culver City California
United States Invivyd Investigative Site Dresden Ohio
United States Invivyd Investigative Site Edgewater Florida
United States Invivyd Investigative Site Escondido California
United States Invivyd Investigative Site Fayetteville Arkansas
United States Invivyd Investigative Site Fullerton California
United States Invivyd Investigative Site Grosse Pointe Woods Michigan
United States Invivyd Investigative Site Hialeah Florida
United States Invivyd Investigative Site Hinesville Georgia
United States Invivyd Investigative Site Houston Texas
United States Invivyd Investigative Site Houston Texas
United States Invivyd Investigative Site Hurst Texas
United States Invivyd Investigative Site Jackson Tennessee
United States Invivyd Investigative Site Lawrenceville Georgia
United States Invivyd Investigative Site Long Beach California
United States Invivyd Investigative Site Los Angeles California
United States Invivyd Investigative Site Marrero Louisiana
United States Invivyd Investigative Site Medford Oregon
United States Invivyd Investigative Site Mesquite Texas
United States Invivyd Investigative Site Miami Florida
United States Invivyd Investigative Site Miami Florida
United States Invivyd Investigative Site Miami Florida
United States Invivyd Investigative Site Middleburg Heights Ohio
United States Invivyd Investigative Site Milan Tennessee
United States Invivyd Investigative Site Missoula Montana
United States Invivyd Investigative Site Modesto California
United States Invivyd Investigative Site Mount Dora Florida
United States Invivyd Investigative Site Nashville Tennessee
United States Invivyd Investigative Site New Orleans Louisiana
United States Invivyd Investigative Site New York New York
United States Invivyd Investigative Site North Little Rock Arkansas
United States Invivyd Investigative Site North Miami Beach Florida
United States Invivyd Investigative Site Oak Brook Illinois
United States Invivyd Investigative Site Ormond Beach Florida
United States Invivyd Investigative Site Owensboro Kentucky
United States Invivyd Investigative Site Palm Springs California
United States Invivyd Investigative Site Pearl City Hawaii
United States Invivyd Investigative Site Pembroke Pines Florida
United States Invivyd Investigative Site Richmond Virginia
United States Invivyd Investigative Site Rockville Maryland
United States Invivyd Investigative Site Saint George Utah
United States Invivyd Investigative Site San Diego California
United States Invivyd Investigative Site Shelby North Carolina
United States Invivyd Investigative Site Sugar Land Texas
United States Invivyd Investigative Site Sunrise Florida
United States Invivyd Investigative Site Tampa Florida
United States Invivyd Investigative Site The Villages Florida
United States Invivyd Investigative Site Tucson Arizona
United States Invivyd Investigative Site West Columbia South Carolina
United States Invivyd Investigative Site West Jordan Utah
United States Invivyd Investigative Site West Palm Beach Florida
United States Invivyd Investigative Site Yukon Oklahoma

Sponsors (1)

Lead Sponsor Collaborator
Invivyd, Inc.

Countries where clinical trial is conducted

United States,  Argentina,  Czechia,  Georgia,  Germany,  Moldova, Republic of,  Poland,  Romania,  Ukraine, 

Outcome

Type Measure Description Time frame Safety issue
Primary Proportion of participants with RT-PCR confirmed symptomatic COVID-19 Post-exposure prophylaxis (PEP) population Through Day 28
Primary Proportion of participants with RT-PCR confirmed symptomatic COVID-19 Pre-exposure prophylaxis (PrEP) population Through 3 months
Primary Incidence of solicited injection site reactions PEP and PrEP populations Through Day 4
Primary Incidence of treatment emergent adverse events PEP and PrEP populations Through 14 months
Secondary Proportion of participants with RT-PCR confirmed symptomatic COVID-19 PEP population Through 3 months
Secondary Proportion of participants with SARS-CoV-2 infection (asymptomatic or symptomatic) as determined by positive RT-PCR or serology PEP and PrEP populations. Through Day 28 (PEP only) and 3 months (PrEP)
Secondary Proportion of participants with asymptomatic SARS-CoV-2 infection as determined by RT-PCR PEP population On Days 8 and 15 after randomization
Secondary Proportion of participants with asymptomatic SARS-CoV-2 infection as determined by serology PEP and PrEP populations On Day 28 (PEP) and 6 months (PrEP)
Secondary Peak post-baseline SARS-CoV-2 viral load as measured by RT-qPCR in participants with asymptomatic SARS-CoV-2 infection detected by qRT-PCR at baseline via surveillance PEP population Through Day 15
Secondary SARS-CoV-2 viral load as assessed by RT-qPCR change from baseline in asymptomatic participants PEP population Through Day 15
Secondary Proportion of participants with RT-PCR confirmed mild, moderate, or severe/critical COVID-19 PEP and PrEP populations Through COVID-19-like illness Day 28
Secondary Time to sustained resolution of COVID-19 symptoms PEP and PrEP populations Through COVID-19-like illness Day 28
Secondary Proportion of participants with at least 1 COVID-19 related medically attended outpatient visit PEP and PrEP populations Through COVID-19-like illness Day 28
Secondary Proportion of participants with a COVID-19 related hospitalization PEP and PrEP populations Through COVID-19-like illness Day 28
Secondary Incidence of COVID-19 related mortality PEP and PrEP populations Through COVID-19-like illness Day 28
Secondary Incidence of all cause mortality PEP and PrEP populations Through COVID-19-like illness Day 28
Secondary Viral load as assessed by RT-qPCR in participants with COVID-19-like illness PEP and PrEP populations CLI Day 1 sample
Secondary Assessment of PK Parameter: Cmax for ADG20 PEP and PrEP populations 12 months
Secondary Assessment of PK Parameter: Area under the curve for ADG20 PEP and PrEP populations 12 months
Secondary Assessment of PK Parameter: Half-life of ADG20 PEP and PrEP populations 12 months
Secondary Assessment of PK Parameter: Clearance of ADG20 PEP and PrEP populations 12 months
Secondary Assessment of PK Parameter: volume of distribution of ADG20 PEP and PrEP populations 12 months
Secondary Incidence of ADA to ADG20 PEP and PrEP populations 12 months
Secondary Time from randomization to first RT-PCR-confirmed symptomatic COVID-19 PEP and PrEP populations Through Day 28 (PEP); through 3 months
Secondary Time from randomization to first SARS-CoV-2 infection (asymptomatic or symptomatic) as determined by positive RT-PCR or serology PEP and PrEP populations Through Day 28 (PEP); through 3 months
Secondary Probability of RT-PCR-confirmed symptomatic COVID-19 PEP and PrEP populations Through Day 28 (PEP); through 3 months
Secondary Probability of SARS-CoV-2 infection (asymptomatic or symptomatic) as determined by positive RT-PCR or serology PEP and PrEP populations Through Day 28 (PEP); through 3 months
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