Open Label Extension Study to Assess the Safety and Long-Term Immunogenicity of ARCT-021

NCT ID: NCT04728347

Last Updated: 2024-12-30

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

65 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-01-04

Study Completion Date

2021-12-28

Brief Summary

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This is an open-label study enrolling healthy adults that participated in Study ARCT-021-01 (the Parent Study). Participants will receive either a single injection of ARCT-021 or no injection and be followed for up to 365 days.

Detailed Description

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This is a phase 2a, open-label study enrolling up to 106 healthy adults that participated in Study ARCT-021-01 (the Parent Study). Participants will enter this study approximately 3 months after their final study visit in the Parent Study. Participants that received placebo in the Parent Study or who are seronegative for SARS-CoV-2 neutralizing antibodies at screening will receive a single dose of ARCT-021 and will be followed for 365 days. Participants that received two injections of ARCT-021 in the Parent Study will not receive any further injections of ARCT-021 and will be followed for 281 days.

Conditions

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SARS-CoV-2

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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ARCT-021

Participants will receive a single dose of ARCT-021 on Day 1

Group Type EXPERIMENTAL

ARCT-021

Intervention Type BIOLOGICAL

ARCT-021 single dose

Long-term follow up from ARCT-021-01

Participants will not receive intervention but will be followed for safety.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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ARCT-021

ARCT-021 single dose

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

Individuals who:

1. are able to give consent
2. must have completed Study ARCT-021-01
3. agree to comply with all study visits and procedures

Only for subjects that will receive ARCT-021 in this study:
4. are healthy and medically stable
5. are not planning to donate blood or plasma until 28 days after the last dose of ARCT-021.
6. are willing to refrain from strenuous exercise/activity and alcohol for at least 72 hours prior to study visits and until 28 days after the last dose of ARCT-021.
7. are willing to adhere to contraception requirements if sexually active and/or are of child-bearing potential

Exclusion Criteria

Individuals who:

1. are unable to comply with the study visits or procedures in Study ARCT-021-01
2. received placebo in the Parent Study and who are not willing to receive ARCT-021 in this study.

Only for subjects that will receive ARCT-021 in this study:
3. have or will receive any of the SARS CoV-2 or another experimental coronavirus during this study.
4. have a diagnosis of new clinically significant abnormalities including but not limited to

* Respiratory disease requiring daily medications or oxygen currently or any treatment of respiratory disease exacerbations
* Significant heart conditions
* Significant neurological conditions
* Significant blood disorders
* Newly diagnosed autoimmune disease
* Major surgery
5. have abnormal screening laboratory results
6. have uncontrolled diabetes
7. use of any prescription or over-the-counter medications within 7 days prior to vaccination
8. have received immunoglobulins and/or any blood or blood products
9. have a bleeding disorder
10. have uncontrolled blood pressure
11. have been treated with another investigational drug, biological agent, or device since completion of the Parent Study
12. have received or plan to receive:

* A licensed, live vaccine within 4 weeks before or after study vaccination, or
* A licensed, inactivated vaccine within 2 weeks before or after study vaccination
13. have traveled outside of Singapore within 30 days before the vaccination or plans to travel outside of Singapore within 60 days after vaccination.
14. other restrictions may apply
Minimum Eligible Age

21 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Arcturus Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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SingHealth Investigational Medicine Unit (IMU), Singapore General Hospital

Singapore, , Singapore

Site Status

Countries

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Singapore

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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ARCT-021-02

Identifier Type: -

Identifier Source: org_study_id