NCT04730895

Brief Summary

Investigating the role of 13cis retinoic acid in the treatment of COVID-19 and enhancement of Its spike protein based vaccine efficacy and safety.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
360

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Jul 2021

Typical duration for phase_1

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 28, 2021

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 29, 2021

Completed
5 months until next milestone

Study Start

First participant enrolled

July 1, 2021

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2021

Completed
2.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2023

Completed
Last Updated

June 2, 2021

Status Verified

May 1, 2021

Enrollment Period

2 months

First QC Date

January 28, 2021

Last Update Submit

May 28, 2021

Conditions

Outcome Measures

Primary Outcomes (5)

  • Assess the efficacy of the candidate oral and aerosolized isotretinoin for providing complete protection against COVID-19 in adults aged 18 years and older.

    Occurrence of COVID-19 infection

    Time Frame: Study duration (12 months from last dose donation ) ]

  • Assess the safety of the candidate spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine in adults aged 18 years and older.

    Occurrence of expected serious side effects throughout the study duration and in the duration of followup: 1. Generation of Autoantibodies against host ACE2 2. Platelets aggregation 3. Thrombosis 4. Lung damage and fibrosis 5. Sexual problems 6. Neurological problems

    Time Frame: Study duration (24 months from last vaccination) ]

  • Assess the efficacy of the candidate vaccine spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine for providing complete protection against COVID-19 in adults aged 18 years and older.

    Occurrence of COVID-19 infection

    Time Frame: Study duration (12 months from last dose donation ) ]

  • Assess the efficacy of the candidate spike protein based vaccine such as ChAdOx1 nCoV-19 combined with oral and aerosolized isotetinoin in adults aged 18 years and older. for providing complete protection against COVID-19

    Occurrence of COVID-19 infection

    Time Frame: Study duration (12 months from last dose donation ) ]

  • Assess the safety of the candidate spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine in combination with oral or aersolized 13 cis retinoic acid in adults aged 18 years and older.

    Occurrence of expected serious side effects throughout the study duration and in the duration of followup: 1. Generation of Autoantibodies against host ACE2 2. Platelets aggregation 3. Thrombosis 4. Lung damage and fibrosis 5. Sexual problems 6. Neurological problems

    Time Frame: Study duration (24 months from last vaccination) ]

Secondary Outcomes (11)

  • Assess efficacy of the candidate oral and aerosolized isotretinoin against COVID-19

    Time Frame: Study duration (12 months from last dose donation ) ]

  • Assess efficacy of the candidate spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine against COVID-19

    Time Frame: Study duration (12 months from last dose donation ) ]

  • Assess safety of the candidate spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine combined with oral and aerosolized isotetinoin in vaccinated participants

    Time Frame: Study duration (48 months from last vaccination) ]

  • Assessment the expression of MDAP-5 , RIG-1 , IFN1, TLR3 and IFN1 in Isotretinoin treated participants in comparison with vaccinated participants with spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine

    Time Frame: Study duration (12 months from last dose donation ) ]

  • Absolute lymphocyte counts (CD4,CD8 and CD25+FOXP3+ Regulatory T cells ) in Isotretinoin treated participants in comparison with vaccinated participants with spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine

    Time Frame: Study duration (12 months from last dose donation ) ]

  • +6 more secondary outcomes

Study Arms (5)

Oral 13 cis retinoic acid

EXPERIMENTAL

The participants will receive 13 cis retinoic acid (0.5 mg/kg/day in 2 divided doses orally for 14 days . All subjects were encouraged to complete the full course of treatment and common side effects were explained. Side effects and compliance will be documented.

Drug: Oral 13 cis retinoic acid

Aerosolized 13 cis retinoic acid

EXPERIMENTAL

The participants will receive Aerosolized 13 cis retinoic acid in gradual in 2 divided doses increases froms 0.2 mg/kg/day to 4 mg/kg/day as inhaled 13 cis retinoic acid therapy for 14 days. All subjects were encouraged to complete the full course of treatment and common side effects were explained. Side effects and compliance will be documented.

Drug: Aerosolized 13 cis retinoic acid

13 cis retinoic acid doses orally in combination with spike protein based vaccine

EXPERIMENTAL

The participants will receive 13 cis retinoic acid (0.5 mg/kg/day in 2 divided doses orally for 14 days and also, participants will receive two doses of spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine in deltoid of non-dominant arm, 28 days apart. Participants will have 15 routine visits over a 24 month period.All subjects were encouraged to complete the full course of treatment and common side effects were explained. Side effects and compliance will be documented

Combination Product: 13 cis retinoic acid doses orally in combination with spike protein based vaccine

Aerosolized 13 cis retinoic acid in combination with spike protein based vaccine

EXPERIMENTAL

The participants will receive Aerosolized 13 cis retinoic acid in gradual in 2 divided doses increases froms 0.2 mg/kg/day to 4 mg/kg/day as inhaled 13 cis retinoic acid therapy for 14 days and also, participants will receive two doses of 5-7.5x10\^10 vp spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine in deltoid of non-dominant arm, 28 days apart. Participants will have 15 routine visits over a 24 month period.All subjects were encouraged to complete the full course of treatment and common side effects were explained. Side effects and compliance will be documented

Combination Product: Aerosolized 13 cis retinoic acid in combination with spike protein based vaccine

spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine

SHAM COMPARATOR

The participants will receive two doses of 5-7.5x10\^10 vp spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine in deltoid of non-dominant arm, 28 days apart. Participants will have 15 routine visits over a 24 month period.All subjects were encouraged to complete the full course of treatment and common side effects were explained. Side effects and compliance will be documented

Biological: Biological: spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine

Interventions

Dose of 0.5 mg/kg/day in 2 divided doses orally for 14 days

Oral 13 cis retinoic acid

Dose of Aerosolized 13 cis retinoic acid in gradual in 2 divided doses increases froms 0.2 mg/kg/day to 4 mg/kg/day

Aerosolized 13 cis retinoic acid

Dose of 13 cis retinoic acid (0.5 mg/kg/day in 2 divided doses orally for 14 days and also, participants will receive two doses of 5-7.5x10\^10 vp spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine in deltoid of non-dominant arm, 28 days apart

13 cis retinoic acid doses orally in combination with spike protein based vaccine

Dose of Aerosolized 13 cis retinoic acid in gradual in 2 divided doses increases from 0.2 mg/kg/day to 4 mg/kg/day for 14 days and also, participants will receive two doses of 5-7.5x10\^10 vp spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine in deltoid of non-dominant arm, 28 days apart

Aerosolized 13 cis retinoic acid in combination with spike protein based vaccine

Dose of 5-7.5x10\^10vp of spike protein based vaccine such as ChAdOx1 nCoV-19 in deltoid of non-dominant arm, 28 days apart

spike protein based vaccine such as ChAdOx1 nCoV-19 vaccine

Eligibility Criteria

Age18 Years - 40 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy adults aged 18-40 years.
  • Increased risk of SARS-CoV-2 infection
  • Medically stable

You may not qualify if:

  • Confirmed or suspected immunosuppressive or immunodeficient state
  • Prior or concomitant vaccine therapy for COVID-19
  • significant disease, disorder, or finding
  • Hypercholesterolemia
  • Hypertriglyceridemia
  • Liver disease
  • Renal disease
  • Sjögren syndrome
  • Pregnancy
  • Lactation
  • Depressive disorder
  • Body mass index less than 18 points or higher than 25 points
  • Contraindications for hormonal contraception or intrauterine device.
  • Autoimmune diseases A history of organ, bone marrow or hematopoietic stem cell transplantation
  • Patients receiving anti-hcv treatment
  • +16 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Interventions

IsotretinoinChAdOx1 nCoV-19

Intervention Hierarchy (Ancestors)

RetinoidsCarotenoidsPolyenesAlkenesHydrocarbons, AcyclicHydrocarbonsOrganic ChemicalsCyclohexenesCyclohexanesCycloparaffinsHydrocarbons, AlicyclicHydrocarbons, CyclicTerpenesPigments, BiologicalBiological FactorsVaccines, DNANucleic Acid-Based VaccinesVaccines, SyntheticVaccinesBiological ProductsComplex MixturesCOVID-19 VaccinesViral Vaccines

Study Officials

  • Mahmoud Elkazzaz, M.Sc in Biochemistry

    Facculty of Science, Damietta University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Mahmoud Elkazzaz, M.Sc in Biochemistry

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Faculty of Science, Damietta University

Study Record Dates

First Submitted

January 28, 2021

First Posted

January 29, 2021

Study Start

July 1, 2021

Primary Completion

September 1, 2021

Study Completion

December 1, 2023

Last Updated

June 2, 2021

Record last verified: 2021-05