NCT04902183

Brief Summary

This is a phase II randomized, single-blind dose study to evaluate the safety and efficacy of exosomes overexpressing CD24 of two doses, Dose 1 - 10\^9 exosome particles (per dose) versus Dose 2 - 10\^10 exosome particles (per dose), to prevent clinical deterioration in patients with Moderate or Severe COVID-19 infection.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
90

participants targeted

Target at P25-P50 for phase_2 covid19

Timeline
Completed

Started Jun 2021

Shorter than P25 for phase_2 covid19

Geographic Reach
1 country

3 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 21, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 26, 2021

Completed
14 days until next milestone

Study Start

First participant enrolled

June 9, 2021

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2021

Completed
Last Updated

June 15, 2021

Status Verified

June 1, 2021

Enrollment Period

3 months

First QC Date

May 21, 2021

Last Update Submit

June 12, 2021

Conditions

Outcome Measures

Primary Outcomes (2)

  • Collection of serious adverse events

    * Incidence of treatment (dose)-related serious adverse events. * Incidence of all adverse events related or unrelated to the study treatment.

    Through study completion, an average of 4 months

  • Proportion of patients related with Respiratory rate and SpO2 saturation

    * Proportion of patients with respiratory rate \< 23/min for at least 24 hours, on Day 7. * Proportion of patients with SpO2 saturation \>94%, on room air for at least 24 hours, on Day 7. * Proportion of patients with a decrease by 50% in either CRP/LDH/Fibrinogen/Ferritin/D-dimers from baseline to Day 7.

    Through study completion, an average of 4 months

Secondary Outcomes (23)

  • Improvement of COVID19 status from severe to moderate

    Through study completion, an average of 4 months

  • Time to recovery

    Through study completion, an average of 4 months

  • Death rate

    Through study completion, an average of 4 months

  • No need for mechanical ventilation

    Through study completion, an average of 4 months

  • Patients status regarding haemodynamic instability

    Through study completion, an average of 4 months

  • +18 more secondary outcomes

Study Arms (2)

10^9 dose of exosomes overexpressing CD24

EXPERIMENTAL

The patients will receive the dose of 10\^9 exosomes overexpressing CD24

Drug: CovenD24

10^10 dose of exosomes overexpressing CD24

EXPERIMENTAL

The patients will receive the dose of 10\^10 exosomes overexpressing CD24

Drug: CovenD24

Interventions

The drug will be administrated once daily for 5 days

Also known as: Exo-CD24
10^10 dose of exosomes overexpressing CD2410^9 dose of exosomes overexpressing CD24

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • A COVID-19 diagnosis confirmed with a SARS-CoV-2 infection positive polymerase chain reaction (PCR) within 30 days of screening.
  • Age 18-80 years.
  • Severity of disease according to the following criteria (at least one clinical parameter and one laboratory parameter are required):
  • a. Clinical and Imaging-based evaluation i. Respiratory rate \> 23/min and \< 30/min ii. SpO2 at room air ≤94% and ≥90% iii. Bilateral pulmonary infiltrates \>25% within 24-48 hours or a severe deterioration compared to imaging at admission.
  • b. Evidence of an exacerbated inflammatory process i. LDH \> 300 U/L or what is the upper limit for normal per age ii. CRP \>25 mg/L iii. Ferritin \>500 ng/ml iv. Lymphocytes \<800 cells/mm3 v. D-dimers \> 500ng/ml
  • Willing and able to sign an informed consent.

You may not qualify if:

  • Any concomitant illness that, based on the judgment of the Investigator might affect the interpretation or the results of the study (i.e., immunodeficiency).
  • Mechanically-ventilated patient or patient who will probably require ICU admission or mechanical ventilation within 24 hours from enrolment, according to the Investigator's judgment.
  • Previous complete or partial vaccination for SARS-CoV-2.
  • Pregnancy \[positive urine pregnancy test (women of childbearing potential only)\] or breastfeeding.
  • Participation in any other Interventional study in the last 30 days
  • Active cancer.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

3rd Department of Medicine, "Sotiria" Thoracic Diseases General Hospital of Athens

Athens, Attica, 11527, Greece

NOT YET RECRUITING

7th Respiratory Medicine Department, "Sotiria" Thoracic Diseases General Hospital of Athens

Athens, Attica, 11527, Greece

NOT YET RECRUITING

Attikon University Hospital

Athens, Attica, 12462, Greece

RECRUITING

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Officials

  • Sotirios Tsiodras, Prof

    Attikon University Hospital, Athens, Greece

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Sotirios Tsiodras, Prof

CONTACT

Nadir Arber, Prof

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
The administrated dose will be unknown to the patients
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This is a two arms study; one arm will receive 10\^9 dose and the second arm will receive 10\^10 dose of exosomes overexpressing CD24
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 21, 2021

First Posted

May 26, 2021

Study Start

June 9, 2021

Primary Completion

September 1, 2021

Study Completion

September 1, 2021

Last Updated

June 15, 2021

Record last verified: 2021-06

Data Sharing

IPD Sharing
Will not share

Locations