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Colchicine and Post-COVID-19 Pulmonary Fibrosis

Study Purpose

Pulmonary fibrosis is a sequela to adult respiratory distress syndrome (ARDS). 40% of patients with corona virus disease 2019 (COVID-19) develop ARDS, and 20% of them are severe. Clinical, radiographic, and autopsy reports of pulmonary fibrosis were commonplace following SARS and MERS, and current evidence suggests pulmonary fibrosis could complicate infection by SARS-CoV-2 too. Colchicine has a direct anti-inflammatory effect by inhibiting the synthesis of tumor necrosis factor alpha and IL-6, monocyte migration, and the secretion of matrix metalloproteinase-9. It suppress secretion of cytokines and chemokines as well as in vitro platelet aggregation. All these are potentially beneficial effects that might diminish the COVID-19 inflammatory storm associated with severe cases.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 18 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - Patients who are confirmed to have COVID-19 clinically, radiologically and PCR.
  • - Age above 18 years old.
  • - Informed written consent.

Exclusion Criteria:

  • - History of hypersensitivity to colchicine.
  • - Pregnancy or breastfeeding women.
  • - Patients with severe renal impairment (creatinine clearance (CCL) <30 mL / min) - Patients with severe hepatic impairment (AST or ALT> 5 times the normal limits in International Units (ULN) - Patients with blood dyscrasias, neutrophils <1.000 / mmc or platelets <50.000 / mmc.
  • - Patients with history of severe cardiac insufficiency.
  • - Patients with history of pulmonary fibrosis.
  • - Severe diarrhoea or bowel diverticulitis, or perforation.
  • - Patients who cannot take oral therapy.
  • - Patients already in ICU or requiring mechanical ventilation.
  • - Patients already enrolled in other clinical trials.
- Patients with taking P-glycoprotein inhibitor (e.g. ciclosporin, verapamil or quinidine) or a CYP3A4 inhibitor (e.g. ritonavir, remdesivir, atazanavir, indinavir, clarithromycin, telithromycin, itraconazole or ketaconazole) or Tocilizumab

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 4
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Emad Issak
Principal Investigator Affiliation Ain Shams Univeristy
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Recruiting
Countries Egypt

The disease, disorder, syndrome, illness, or injury that is being studied.

Covid19, Pulmonary Fibrosis Interstitial
Additional Details

Approximately 96 million people have been diagnosed with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), and around two million people have died from this deadly disease worldwide. The pulmonary symptoms associated with SARS-CoV-2 vary from mild respiratory symptoms to severe respiratory failure. Of those infected with SARS-CoV-2, 40% will progress to ARDS. Radiologically, most of those infected by SARS COV 2 have bilateral lower lobes ground-glass opacities with or without consolidation. However, long term lung impairment may develop particularly interstitial lung disease (ILD), the fibrotic type. Besides, pulmonary fibrosis (PF) is recognized sequelae of ARDS, and several studies have shown that protective lung ventilation tends to diminish the radiographic abnormalities following ARDS. Colchicine has anti-fibrotic effects as a microtubule-destabilizing agent. In an in vitro study using human lung fibroblasts, colchicine inhibited myofibroblast differentiation via Rho/serum response factor (SRF) dependent. In COVID19 cases, colchicine was used by where they assessed its impact on the inflammatory biomarkers and clinical outcomes.

Arms & Interventions


Experimental: Colchicine group

Colchicine 0.5 mg (2 tablets: 1 mg) twice per day as a loading dose, followed by one tablet 0.5 twice per day for three weeks in addition to the local standard protocol of COVID19 management

Placebo Comparator: Control group

the local standard protocol of COVID19 management


Drug: - Colchicine 0.5 MG

colchicine 0.5 mg (2 tablets: 1 mg) twice per day as a loading dose, followed by one tablet 0.5 twice per day for three weeks in addition to the standard protocol

Other: - the standard protocol only

the local standard protocol for COVID19

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

International Sites

El-Demerdash Hospital, Cairo, Egypt




El-Demerdash Hospital

Cairo, ,

Site Contact

Mariam Maged, MD