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Safety, Immunogenicity, and Efficacy of INO-4800 for COVID-19 in Adults at High Risk of SARS-CoV-2 Exposure

Primary Purpose

Coronavirus Infection, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), COVID-19 Disease

Status
Terminated
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
INO-4800
CELLECTRA® 2000
Placebo
CELLECTRA® 2000
Sponsored by
Inovio Pharmaceuticals
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Coronavirus Infection focused on measuring DNA vaccine, Electroporation, Healthy, COVID-19

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Key Inclusion Criteria:

  • Working or residing in an environment with high risk of exposure to SARS-CoV-2 for whom exposure may be relatively prolonged or for whom personal protective equipment (PPE) may be inconsistently used, especially in confined settings.
  • Phase 2 only: Screening laboratory results within normal limits for testing laboratory or are deemed not clinically significant by the Investigator.
  • Be post-menopausal or be surgically sterile or have a partner who is sterile or use medically effective contraception with a failure rate of < 1% per year when used consistently and correctly from Screening until 3 months following last dose (Phase 2) or until last dose (Phase 3).

Key Exclusion Criteria:

  • Acute febrile illness with temperature higher than or equal to 100.4°F (38.0°C) or acute onset of upper or lower respiratory tract symptoms (e.g., cough, shortness of breath, sore throat).
  • Positive serologic or molecular (Reverse transcription polymerase chain reaction (RT-PCR)) test for SARS-CoV-2 at Screening (this criterion applies to all Phase 2 participants and only applies after approximately 402 participants positive for SARS-CoV-2 serologic test are randomized in the Phase 3 segment of the study).
  • Pregnant or breastfeeding or intending to become pregnant or intending to father children within the projected duration of the trial starting from the Screening visit until 3 months following the last dose (Phase 2) or until last dose (Phase 3).
  • Known history of uncontrolled HIV based on a CD4 count less than 200 cells per cubic millimeter (/mm^3) or a detectable viral load within the past 3 months.
  • Is currently participating or has participated in a study with an investigational product within 30 days preceding Day 0.
  • Previous or planned receipt of an investigational (including Emergency Use Authorization (EUA) or local equivalent authorization) or licensed vaccine for prevention or treatment of COVID-19, middle east respiratory syndrome (MERS), or severe acute respiratory syndrome (SARS) (documented receipt of placebo in previous trial would be permissible for trial eligibility).
  • Respiratory diseases (e.g., asthma, chronic obstructive pulmonary disease) requiring significant changes in therapy or hospitalization for worsening disease during the 6 weeks prior to enrolment.
  • Immunosuppression as a result of underlying illness or treatment.
  • Lack of acceptable sites available for ID injection and EP.
  • Blood donation or transfusion within 1 month prior to Day 0.
  • Reported alcohol or substance abuse or dependence, or illicit drug use (excluding marijuana use).
  • Any illness or condition that in the opinion of the investigator may affect the safety of the participant or the evaluation of any study endpoint.

Sites / Locations

  • Synexus Clinical Research US, Inc - Phoenix Southeast
  • Central Phoenix Synexus Clinical Research
  • AMR Tempe
  • Optimal Research, LLC
  • AMR South Florida
  • Clinical Research Trials of Florida, Inc
  • AMR Lexington
  • Walter Reed Army Institute of Research
  • Ascension St. John Hospital
  • AMR Kansas City
  • AMR, Clinical Research Consortium- Las Vegas
  • University of Pennsylvania
  • Thomas Jefferson University
  • Tekton Research
  • DM Clinical Research
  • Advanced Clinical Research
  • Centro de Investigacion Medico Asistencial S.A.S
  • Clinica de la Costa LTDA
  • Corazon IPS S.A.S
  • Ips Centro Cientifico Asistencial Sas
  • Centro de Investigaciones Clinicas IPS Cardiomet Pereira
  • BRCR Global Mexico
  • Eukarya Pharmasite SC
  • Unidad de Medicina Especializada SMA
  • Clinstile, SA de CV
  • SMIQ, S. de R. L. de C.V.
  • FAICIC S. de R.L. de C.V.

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm Type

Experimental

Experimental

Placebo Comparator

Placebo Comparator

Experimental

Placebo Comparator

Arm Label

Phase 2: INO-4800 Dose Group 1

Phase 2: INO-4800 Dose Group 2

Phase 2: Placebo Dose Group 1

Phase 2: Placebo Dose Group 2

Phase 3: INO-4800 Dose Group (2.0mg per dosing visit)

Phase 3: Placebo Dose Group

Arm Description

Participants received one ID injection of 1.0 milligram (mg) of INO-4800 followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.

Participants received two ID injections of 1.0 mg (total 2.0 mg per dosing visit) of INO-4800 followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.

Participants received one ID injection of placebo followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.

Participants received 2 ID injections of placebo followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.

Participants received two 1.0 mg ID injections of INO-4800, each followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.

Participants received 2 ID injections of placebo per dosing visit, each followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.

Outcomes

Primary Outcome Measures

Phase 2: Change From Baseline in Antigen-specific Cellular Immune Response Measured by Interferon-gamma (IFN-γ) Enzyme-linked Immunospot (ELISpot) Assay
Phase 2: Change From Baseline in Neutralizing Antibody Response Measured by a Pseudovirus-based Neutralization Assay
Phase 3: Percentage of Participants, (SARS-CoV-2 seronegative at baseline), With Virologically-confirmed COVID-19 Disease

Secondary Outcome Measures

Phase 2 and 3: Percentage of Participants With Solicited and Unsolicited Injection Site Reactions
Phase 2 and 3: Percentage of Participants With Solicited and Unsolicited Systemic Adverse Events (AEs)
Phase 2 and 3: Percentage of Participants With Serious Adverse Events (SAEs)
Phase 2 and 3: Percentage of Participants With Adverse Events of Special Interest (AESIs)
Phase 3: Percentage of Participants With Death From All Causes
Phase 3: Percentage of Participants, (SARS-CoV-2 seronegative at baseline), With Non-Severe COVID-19 Disease
Phase 3: Percentage of Participants, (SARS-CoV-2 seronegative at baseline), With Severe COVID-19 Disease
Phase 3: Percentage of Participants, (SARS-CoV-2 seronegative at baseline), With Death From COVID-19 Disease
Phase 3: Percentage of Participants, (SARS-CoV-2 seropositive at baseline), With Virologically-Confirmed SARS-CoV-2 COVID-19 Disease
Phase 3: Change From Baseline in Antigen-specific Cellular Immune Response Measured by IFN-gamma ELISpot Assay
Phase 3: Change From Baseline in Neutralizing Antibody Response Measured by a Pseudovirus-based Neutralization Assay

Full Information

First Posted
November 23, 2020
Last Updated
September 12, 2023
Sponsor
Inovio Pharmaceuticals
Collaborators
Advaccine (Suzhou) Biopharmaceuticals Co., Ltd.
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1. Study Identification

Unique Protocol Identification Number
NCT04642638
Brief Title
Safety, Immunogenicity, and Efficacy of INO-4800 for COVID-19 in Adults at High Risk of SARS-CoV-2 Exposure
Official Title
Phase 2/3 Randomized, Blinded, Placebo-Controlled Trial to Evaluate the Safety, Immunogenicity, and Efficacy of INO-4800, a Prophylactic Vaccine Against COVID-19 Disease, Administered Intradermally Followed by Electroporation in Adults at High Risk of SARS-CoV-2 Exposure
Study Type
Interventional

2. Study Status

Record Verification Date
September 2023
Overall Recruitment Status
Terminated
Why Stopped
The study was terminated to prioritize Inovio's COVID-19 efforts to advance a heterologous booster strategy and optimize potential impact on global public health.
Study Start Date
November 30, 2020 (Actual)
Primary Completion Date
September 13, 2022 (Actual)
Study Completion Date
September 13, 2022 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Inovio Pharmaceuticals
Collaborators
Advaccine (Suzhou) Biopharmaceuticals Co., Ltd.

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
Yes
Device Product Not Approved or Cleared by U.S. FDA
Yes
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a Phase 2/3, randomized, placebo-controlled, multi-center trial to evaluate the safety, immunogenicity and efficacy of INO-4800 administered by intradermal (ID) injection followed by electroporation (EP) using CELLECTRA® 2000 device to prevent coronavirus disease 2019 (COVID-19) in participants at high risk of exposure to severe acute respiratory syndrome coronavirus - 2 (SARS-CoV-2). The Phase 2 segment will evaluate immunogenicity and safety in approximately 400 participants at two dose levels across three age groups. Safety and immunogenicity information from the Phase 2 segment will be used to determine the dose level for the Phase 3 efficacy segment of the study involving approximately 7116 participants.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Coronavirus Infection, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), COVID-19 Disease
Keywords
DNA vaccine, Electroporation, Healthy, COVID-19

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 2, Phase 3
Interventional Study Model
Sequential Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
1307 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Phase 2: INO-4800 Dose Group 1
Arm Type
Experimental
Arm Description
Participants received one ID injection of 1.0 milligram (mg) of INO-4800 followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.
Arm Title
Phase 2: INO-4800 Dose Group 2
Arm Type
Experimental
Arm Description
Participants received two ID injections of 1.0 mg (total 2.0 mg per dosing visit) of INO-4800 followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.
Arm Title
Phase 2: Placebo Dose Group 1
Arm Type
Placebo Comparator
Arm Description
Participants received one ID injection of placebo followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.
Arm Title
Phase 2: Placebo Dose Group 2
Arm Type
Placebo Comparator
Arm Description
Participants received 2 ID injections of placebo followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.
Arm Title
Phase 3: INO-4800 Dose Group (2.0mg per dosing visit)
Arm Type
Experimental
Arm Description
Participants received two 1.0 mg ID injections of INO-4800, each followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.
Arm Title
Phase 3: Placebo Dose Group
Arm Type
Placebo Comparator
Arm Description
Participants received 2 ID injections of placebo per dosing visit, each followed by EP using the CELLECTRA® 2000 device on Day 0 and Day 28.
Intervention Type
Drug
Intervention Name(s)
INO-4800
Intervention Description
INO-4800 was administered ID on Day 0 and Day 28.
Intervention Type
Device
Intervention Name(s)
CELLECTRA® 2000
Intervention Description
EP using the CELLECTRA® 2000 device was administered following ID delivery of INO-4800 on Day 0 and Day 28.
Intervention Type
Drug
Intervention Name(s)
Placebo
Other Intervention Name(s)
SSC-0001, Placebo for INO-4800
Intervention Description
Sterile saline sodium citrate (SSC) buffer (SSC-0001) was administered ID on Day 0 and Day 28.
Intervention Type
Device
Intervention Name(s)
CELLECTRA® 2000
Intervention Description
EP using the CELLECTRA® 2000 device was administered following ID delivery of sterile saline sodium citrate (SSC) buffer (SSC-0001) on Day 0 and Day 28.
Primary Outcome Measure Information:
Title
Phase 2: Change From Baseline in Antigen-specific Cellular Immune Response Measured by Interferon-gamma (IFN-γ) Enzyme-linked Immunospot (ELISpot) Assay
Time Frame
Baseline up to Day 393
Title
Phase 2: Change From Baseline in Neutralizing Antibody Response Measured by a Pseudovirus-based Neutralization Assay
Time Frame
Baseline up to Day 393
Title
Phase 3: Percentage of Participants, (SARS-CoV-2 seronegative at baseline), With Virologically-confirmed COVID-19 Disease
Time Frame
From 14 days after completion of the 2-dose regimen up to 12 months post-dose 2 (i.e. Day 42 up to Day 393)
Secondary Outcome Measure Information:
Title
Phase 2 and 3: Percentage of Participants With Solicited and Unsolicited Injection Site Reactions
Time Frame
From time of consent up to 28 days post-dose 2 (up to Day 56)
Title
Phase 2 and 3: Percentage of Participants With Solicited and Unsolicited Systemic Adverse Events (AEs)
Time Frame
From time of consent up to 28 days post-dose 2 (up to Day 56)
Title
Phase 2 and 3: Percentage of Participants With Serious Adverse Events (SAEs)
Time Frame
Baseline up to Day 393
Title
Phase 2 and 3: Percentage of Participants With Adverse Events of Special Interest (AESIs)
Time Frame
Baseline up to Day 393
Title
Phase 3: Percentage of Participants With Death From All Causes
Time Frame
Baseline up to Day 393
Title
Phase 3: Percentage of Participants, (SARS-CoV-2 seronegative at baseline), With Non-Severe COVID-19 Disease
Time Frame
From 14 days after completion of the 2-dose regimen up to 12 months post-dose 2 (i.e. Day 42 up to Day 393)
Title
Phase 3: Percentage of Participants, (SARS-CoV-2 seronegative at baseline), With Severe COVID-19 Disease
Time Frame
From 14 days after completion of the 2-dose regimen up to 12 months post-dose 2 (i.e. Day 42 up to Day 393)
Title
Phase 3: Percentage of Participants, (SARS-CoV-2 seronegative at baseline), With Death From COVID-19 Disease
Time Frame
From 14 days after completion of the 2-dose regimen up to 12 months post-dose 2 (i.e. Day 42 up to Day 393)
Title
Phase 3: Percentage of Participants, (SARS-CoV-2 seropositive at baseline), With Virologically-Confirmed SARS-CoV-2 COVID-19 Disease
Time Frame
From 14 days after completion of the 2-dose regimen up to 12 months post-dose 2 (i.e. Day 42 up to Day 393)
Title
Phase 3: Change From Baseline in Antigen-specific Cellular Immune Response Measured by IFN-gamma ELISpot Assay
Time Frame
Baseline up to Day 393
Title
Phase 3: Change From Baseline in Neutralizing Antibody Response Measured by a Pseudovirus-based Neutralization Assay
Time Frame
Baseline up to Day 393

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Key Inclusion Criteria: Working or residing in an environment with high risk of exposure to SARS-CoV-2 for whom exposure may be relatively prolonged or for whom personal protective equipment (PPE) may be inconsistently used, especially in confined settings. Phase 2 only: Screening laboratory results within normal limits for testing laboratory or are deemed not clinically significant by the Investigator. Be post-menopausal or be surgically sterile or have a partner who is sterile or use medically effective contraception with a failure rate of < 1% per year when used consistently and correctly from Screening until 3 months following last dose (Phase 2) or until last dose (Phase 3). Key Exclusion Criteria: Acute febrile illness with temperature higher than or equal to 100.4°F (38.0°C) or acute onset of upper or lower respiratory tract symptoms (e.g., cough, shortness of breath, sore throat). Positive serologic or molecular (Reverse transcription polymerase chain reaction (RT-PCR)) test for SARS-CoV-2 at Screening (this criterion applies to all Phase 2 participants and only applies after approximately 402 participants positive for SARS-CoV-2 serologic test are randomized in the Phase 3 segment of the study). Pregnant or breastfeeding or intending to become pregnant or intending to father children within the projected duration of the trial starting from the Screening visit until 3 months following the last dose (Phase 2) or until last dose (Phase 3). Known history of uncontrolled human immunodeficiency virus (HIV) based on clusters of differentiation (CD4) count less than 200 cells per cubic millimeter (/mm^3) or a detectable viral load within the past 3 months. Is currently participating or has participated in a study with an investigational product within 30 days preceding Day 0. Previous or planned receipt of an investigational (including Emergency Use Authorization (EUA) or local equivalent authorization) or licensed vaccine for prevention or treatment of COVID-19, middle east respiratory syndrome (MERS), or severe acute respiratory syndrome (SARS) (documented receipt of placebo in previous trial would be permissible for trial eligibility). Respiratory diseases (e.g., asthma, chronic obstructive pulmonary disease) requiring significant changes in therapy or hospitalization for worsening disease during the 6 weeks prior to enrolment. Immunosuppression as a result of underlying illness or treatment. Lack of acceptable sites available for ID injection and EP. Blood donation or transfusion within 1 month prior to Day 0. Reported alcohol or substance abuse or dependence, or illicit drug use (excluding marijuana use). Any illness or condition that in the opinion of the investigator may affect the safety of the participant or the evaluation of any study endpoint.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Jose Colmenares
Organizational Affiliation
Inovio Pharmaceuticals
Official's Role
Study Director
Facility Information:
Facility Name
Synexus Clinical Research US, Inc - Phoenix Southeast
City
Chandler
State/Province
Arizona
ZIP/Postal Code
85224
Country
United States
Facility Name
Central Phoenix Synexus Clinical Research
City
Phoenix
State/Province
Arizona
ZIP/Postal Code
85020
Country
United States
Facility Name
AMR Tempe
City
Tempe
State/Province
Arizona
ZIP/Postal Code
85283
Country
United States
Facility Name
Optimal Research, LLC
City
San Diego
State/Province
California
ZIP/Postal Code
92108
Country
United States
Facility Name
AMR South Florida
City
Coral Gables
State/Province
Florida
ZIP/Postal Code
33134
Country
United States
Facility Name
Clinical Research Trials of Florida, Inc
City
Tampa
State/Province
Florida
ZIP/Postal Code
33607
Country
United States
Facility Name
AMR Lexington
City
Lexington
State/Province
Kentucky
ZIP/Postal Code
40509
Country
United States
Facility Name
Walter Reed Army Institute of Research
City
Silver Spring
State/Province
Maryland
ZIP/Postal Code
20910
Country
United States
Facility Name
Ascension St. John Hospital
City
Detroit
State/Province
Michigan
ZIP/Postal Code
48236
Country
United States
Facility Name
AMR Kansas City
City
Kansas City
State/Province
Missouri
ZIP/Postal Code
64114
Country
United States
Facility Name
AMR, Clinical Research Consortium- Las Vegas
City
Las Vegas
State/Province
Nevada
ZIP/Postal Code
89119
Country
United States
Facility Name
University of Pennsylvania
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19104
Country
United States
Facility Name
Thomas Jefferson University
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19107
Country
United States
Facility Name
Tekton Research
City
San Antonio
State/Province
Texas
ZIP/Postal Code
78229
Country
United States
Facility Name
DM Clinical Research
City
Tomball
State/Province
Texas
ZIP/Postal Code
78229
Country
United States
Facility Name
Advanced Clinical Research
City
West Jordan
State/Province
Utah
ZIP/Postal Code
84088
Country
United States
Facility Name
Centro de Investigacion Medico Asistencial S.A.S
City
Barranquilla
State/Province
Atlántico
ZIP/Postal Code
800001
Country
Colombia
Facility Name
Clinica de la Costa LTDA
City
Barranquilla
State/Province
Atlántico
ZIP/Postal Code
80002
Country
Colombia
Facility Name
Corazon IPS S.A.S
City
Barranquilla
State/Province
Atlántico
ZIP/Postal Code
80020
Country
Colombia
Facility Name
Ips Centro Cientifico Asistencial Sas
City
Barranquilla
State/Province
Atlántico
ZIP/Postal Code
80020
Country
Colombia
Facility Name
Centro de Investigaciones Clinicas IPS Cardiomet Pereira
City
Pereira
State/Province
Risaralda
ZIP/Postal Code
660003
Country
Colombia
Facility Name
BRCR Global Mexico
City
Guadalajara
State/Province
Jalisco
ZIP/Postal Code
44600
Country
Mexico
Facility Name
Eukarya Pharmasite SC
City
Monterrey
State/Province
Nuevo Leon
ZIP/Postal Code
64718
Country
Mexico
Facility Name
Unidad de Medicina Especializada SMA
City
San Juan del Río
State/Province
Querétaro
ZIP/Postal Code
76800
Country
Mexico
Facility Name
Clinstile, SA de CV
City
Mexico City
ZIP/Postal Code
06700
Country
Mexico
Facility Name
SMIQ, S. de R. L. de C.V.
City
Querétaro
ZIP/Postal Code
76070
Country
Mexico
Facility Name
FAICIC S. de R.L. de C.V.
City
Veracruz
ZIP/Postal Code
91900
Country
Mexico

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Data dictionaries and all collected IPD will be stripped of identifiers and may be made available upon request.
IPD Sharing Time Frame
Anonymous IPD may be shared following or during the publication of summary data. Archival data may be accessed for up to 10 years following the end of the study.
IPD Sharing Access Criteria
Those who request the anonymous IPD must provide a plan of study explaining how the data will be used. Requests may be sent to the Central Contact Person. Requests will be reviewed based on the potential for the planned use of the IPD for advancing scientific knowledge and theory.

Learn more about this trial

Safety, Immunogenicity, and Efficacy of INO-4800 for COVID-19 in Adults at High Risk of SARS-CoV-2 Exposure

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