Efficacy of Aerosol Combination Therapy of 13 Cis Retinoic Acid and Captopril for Treating Covid-19 Patients Via Indirect Inhibition of Transmembrane Protease, Serine 2 (TMPRSS2)
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Brief Summary
Efficacy of Aerosol Combination Therapy of 13 Cis Retinoic Acid and Captopril for Treating Covid-19 Patients Via Indirect Inhibition of Transmembrane Protease, Serine 2 (TMPRSS2) Severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) has infected over 20,000,000 people causing over 700,000 deaths. It has no currently approved treatments.Airborne SARS-CoV-2 infections in humans initiate from the virus entering nasal and airway epithelial cells through binding to angiotensin-converting enzyme 2 (ACE2). Transmembrane protease, serine 2 (TMPRSS2), a cellular protease that activates the SARS-CoV-2 spike protein, colocalizes with ACE2 and can prime SARS-CoV-2 fusion directly at the plasma membrane. Transmembrane protease, serine 2 (TMPRSS2) is an androgen receptor signaling target gene and an androgen-regulated cell-surface serine protease expressed predominantly in prostate and lung epithelial cell. TMPRSS2 is normally expressed several folds higher in the prostate relative to any other human tissue, though the normal physiological function(s) remains unknown. A study found that dihydrotestosterone (DHT) s a potent activator of TMPRSS2.On the other hand, Feily et al noted that low-dose isotretinoin (0.5 mg/kg/day for 15-20 weeks) in PCO patients with moderate to severe nodulocystic acne resulted in significant decreases in levels of serum total testosterone, prolactin, and dihydrotestosterone A study demonstrated that 13- cis -Retinoic acid competitively and reversibly inhibits dihydrotestosterone. Therefore, we suggest that 13- cis -Retinoic acid will downregulate TMPRSS2 expression thorough temporary preventing the effect of dihydrotestosterone (DHT) on the activation of TMPRSS2 gene expression. ACE inhibitors and ARBs are commonly taken by heart patients to reduce blood pressure and to treat heart failure.Earlier studies had cautioned that this class of drugs could possibly increase the risk for the novel coronavirus, SARS-CoV-2, infection and elevate COVID-19 severity. There is conflicting observational evidence about the potential clinical impact of ACE inhibitors and ARBs on patients with COVID-19. Select preclinical investigations have raised concerns about their safety in patients with COVID-19. On the other hand, Preliminary data hypothesise that angiotensin-converting enzyme (ACE) inhibitors and renin-angiotensin- aldosterone system (RAAS) inhibitors could benefit patients with COVID-19 by decreasing acute lung damage and preventing angiotensin-II-mediated pulmonary inflammation. Here in our review, we use established and emerging evidence based on the findings of previous studies and researches to propose that ACE inhibitors may benefit patients with COVID-19 via attenuating and abolishing the effect of androgenic hormones on inducing the expression of Transmembrane protease, serine 2 (TMPRSS2), even though, at the same time, ACE inhibitors cause an increase in the human cell surface receptor protein ACE2 which the novel coronavirus uses to enter and infect cells. A study on hypertensive rats demonstrated that using ACE inhibitors(captopril) abolished and attenuated the effect of dihydrotestosterone (DHT). In this study RAS inhibition exhibited beneficial effects on androgen-induced obesity and abolished the androgen-mediated increase in blood pressure (BP) observed in this model of PCOS. (83 ± 1 vs 115 ± 3 mmHg, p\<0.0001). A another study found that the angiotensin converting enzyme inhibitor captopril abolished testosterone effect and attenuates testosterone-induced benign prostatic hyperplasia in rats; a mechanistic approach. Captopril is a potent inhibitor of the angiotensin converting enzyme. These effects of testosterone were almost prevented by captopril (100 mg/kg). In conclusion, generally treatment with ACE inhibitors is associated with reduced androgen levels. Therefore,we think that Transmembrane protease, serine 2 (TMPRSS2) is an indirect target of ACE inhibitors and 13 cis retinoic acid As aresult, we hypothesize that any drug which downregulates TMPRSS2 expression through targeting AR, AR co-regulatory factors, or AR downstream transcription factors might be potentially effective against COVID-19 and is worth investigating under a clinical trial.. Keywords: COVID -19, Transmembrane protease, serine 2 (TMPRSS2), ACE inhibitors, ACE2.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2 covid19
Started Nov 2020
Shorter than P25 for phase_2 covid19
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
October 4, 2020
CompletedFirst Posted
Study publicly available on registry
October 8, 2020
CompletedStudy Start
First participant enrolled
November 1, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2021
CompletedOctober 26, 2020
October 1, 2020
1 month
October 4, 2020
October 23, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
lung injury score
Proportion of lung injury score decreased or increased after treatmen
at 7days
Secondary Outcomes (13)
Transe membrane protease ,serine II (TMPRSS2) changes over time
at day 7 and 14
Testosterone levels changes over time
at day 7 and 14
Dihydrotestosterone(DHT) levels changes over time
at day 7 and 14]
Cholesterol levels changes over time
at day 7 and 14
Angiotensin 1-7 (Ang 1-7) changes over time
at day 7 and 14
- +8 more secondary outcomes
Study Arms (2)
Aerosolized 13 cis retinoic acid plus Inhalation administration by nebulization captopril 25mg
EXPERIMENTALInfected patients will receive aerosolized 13 cis retinoic acid in gradual one dose per day increases from 0.2 mg/kg/day to 4 mg/kg/day as inhaled 13 cis retinoic acid therapy for 14 days plus Inhalation administration by nebulization captopril 25mg for 14 days
The standard therapy
SHAM COMPARATORinfected patients will receive the standard therapy for COVID-19 for 14 days
Interventions
Infected patients will receive aerosolized 13 cis retinoic acid in gradual one dose per day increases from 0.2 mg/kg/day to 4 mg/kg/day as inhaled 13 cis retinoic acid therapy for 14 days plus Inhalation administration by nebulization captopril 25mg for 14 days
Drug: Standard treatment Standard treatment is according to the protocol of treatment of 2019-nCoV infection
Eligibility Criteria
You may qualify if:
- Adult SARI patients with 2019-ncov infection confirmed by PCR; Absolute value of lymphocytes \< 0. 6x 109/L; Severe respiratory failure within 48 hours and requires admission to ICU. (severe respiratory failure was defined as PaO2/FiO2 \< 200 mmHg and was supported by positive pressure mechanical ventilation (including non-invasive and invasive mechanical ventilation, PEEP\>=5cmH2O))
You may not qualify if:
- Age \< 18 Pregnant Allergic to experimental drugs and patients have the following conditions:
- 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
- Permanent blindness in one eye
- History of iritis, endophthalmitis, scleral inflammation or retinitis 15-90 days of retinal detachment or eye surgery
- +7 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mahmoud Elkazzaz, B.Sc in Biochemistry
Faculty of Science, Damietta University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Faculty of Science, Damietta University
Study Record Dates
First Submitted
October 4, 2020
First Posted
October 8, 2020
Study Start
November 1, 2020
Primary Completion
December 1, 2020
Study Completion
January 1, 2021
Last Updated
October 26, 2020
Record last verified: 2020-10
Data Sharing
- IPD Sharing
- Will not share