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TerminatedNCT04730427Updated Nov 30, 2022

Safety and Preliminary Efficacy Study of GX-I7 in Patients With COVID-19

A Phase 1 interventional study of GX-I7 and GX-I7 vehicle in Covid19, sponsored by Genexine, Inc.. Terminated at 1 site in Korea, Republic of. Open to participants aged 19 Years and older. Per ClinicalTrials.gov, last updated 2022-11-30.

Sponsored by Genexine, Inc. · Phase 1, Interventional, and Treatment

Why this study was terminated
Sponsor's decision
Phase
Phase 1
Study type
Interventional
Enrollment
10
Allocation
Randomized
Ages
19 Years and older
Sex
All
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Study summary

This study is a phase 1b clinical trial to investigate the safety and preliminary effects of a single dose of a test drug or placebo to the subjects who has diagnosed as COVID-19 infection.

Read the detailed description

This study is a phase 1b clinical trial to investigate the safety and preliminary effects of a single dose of a test drug or placebo to the subjects who has diagnosed as COVID-19 infection.

Study design: prospective, randomized, placebo-controlled, single-blind, single-center

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Conditions studied

  • Covid19

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03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's enrollment of 10 is below the median of 100 across 4,098 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Genexine, Inc. is the lead sponsor of 35 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
19 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  1. Subjects who have been confirmed to be COVID-19 corresponding to mild cases of severity categorization classified by FDA through polymerase chain reaction (PCR) test or virus gene test (sequencing) and who can be available to be administered within seven days from the date of manifestation.
  2. Subjects who are or will be inpatient.

Key Exclusion Criteria:

  1. Patients with symptoms of moderate or higher in the severity classification presented by FDA have evidence of lower respiratory tract infection in their imaging findings or need supplemental oxygen therapy or mechanical respiration (ie, non-invasive ventilation, invasive mechanical ventilation, extracorporeal membrane oxygenation, etc)
  2. Subjects with infectious diseases such as bacteremia or severe pneumonia requiring active treatment within four weeks prior to the IP administration
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Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    GX-I7

    GX-I7

    Drug: GX-I7

  • Placebo comparator
    GX-I7 vehicle

    GX-I7 vehicle

    Drug: GX-I7 vehicle

Interventions

  • DrugGX-I7

    Recombinant human interleukin-7 hybrid Fc

    Also known as: Efineptakin alfa, rhIL-7-hyFc, NT-I7, TJ107

  • DrugGX-I7 vehicle

    Formulation buffer of recombinant human interleukin-7 hybrid Fc

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What researchers measure

Primary outcomes

  1. Incidence rate, characteristics, and severity of adverse reactions

    To evaluate the safety of GX-I7 in patients with COVID-19 (rating according to NCI CTCAE v5.0)

    Time frame: up to 52 weeks

  2. Shift from baseline of vital sign

    The number of patients in vital sign shifted from normal or abnormal (NCS) to abnormal (CS)

    Time frame: up to 52 weeks

  3. Shift from baseline of physical examination

    The number of patients in physical examination shifted from normal or abnormal (NCS) to abnormal (CS)

    Time frame: up to 52 weeks

  4. Shift from baseline of hematology

    The number of patients in hematology shifted from normal or abnormal (NCS) to abnormal (CS)

    Time frame: up to 52 weeks

  5. Shift from baseline of blood chemistry

    The number of patients in blood chemistry shifted from normal or abnormal (NCS) to abnormal (CS)

    Time frame: up to 52 weeks

  6. Dose limiting toxicity (DLT)

    The incident rate of DLT

    Time frame: up to 52 weeks

Secondary outcomes

  1. Absolute lymphocyte count (ALC)

    The change of absolute lymphocyte count from baseline

    Time frame: up to 3 weeks

  2. RT-PCR for COVID-19

    To evaluate the efficacy of GX-I7 in patients with COVID-19

    Time frame: up to 52 weeks

  3. Assessment of clinical improvement by modified early warning score (MEWS)

    Changes of modified early warning score (MEWS) from the baseline after the IP administration \[Low-risk (score 0) \~ high-risk (score 3)\]

    Time frame: up to 52 weeks

  4. Ordinal scale for clinical improvement (WHO) in each visit

    Changes of ordinal scale for clinical improvement (WHO) from the baseline after the IP administration \[Uninfected 0 \~ Dead 8\]

    Time frame: up to 52 weeks

  5. The proportion of subjects who have progressed to death or a critical illness

    To evaluate the efficacy of GX-I7 in patients with COVID-19

    Time frame: up to 52 weeks

  6. Immune repertoire

    Changes in the rate of different immune cell types and regulatory T cell in the blood after the IP administration

    Time frame: up to 52 weeks

07

Study locations

1 site
  • Borame Medical Center
    Seoul, 07061, Korea, Republic of
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 30, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04730427
Lead sponsor
Genexine, Inc.
Responsible party
Sponsor
First posted
Jan 29, 2021
Start date
Mar 24, 2021
Primary completion
May 8, 2022
Completion
Jul 7, 2022
Last update
Nov 30, 2022

Study contacts

Minkyu Heo
study director · Genexine_Clinical Development Dept.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Mar 2022. You cannot join it, but the record below documents what was studied.

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