ClinicalTrials.gg
CompletedNCT06437210Updated Jun 3, 2024

Evaluation of Treatment With Viusid in Post-COVID-19 Syndrome

An interventional study of Viusid Oral Solution and Placebo in Post-COVID-19 Syndrome, COVID-19 and Dyspnea, sponsored by Catalysis SL. Completed at 1 site in Colombia. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-06-03.

Sponsored by Catalysis SL · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years 3 months after the study started (first participant enrolled Feb 2022, registered May 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
200
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Reports of long-lasting symptoms of COVID-19 are increasing, but little is known about the prevalence of risk factors or whether it is possible to predict a prolonged course at disease onset. Prolonged COVID is characterized on the basis of symptoms such as fatigue, headache, dyspnea, and anosmia present for weeks, with older age, high body mass index, and female sex being more susceptible.

Accordingly, and in the absence of specific treatments, the present study seeks to establish a treatment protocol for Post-COVID syndrome through the application of the dietary supplement VIUSID, due to its anti-inflammatory and immunomodulatory effect, thus helping to reduce and/or control the symptoms of the syndrome.

Read the detailed description

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2e) is the pathogen responsible for the 2019 coronavirus disease pandemic (COVID-19), which has caused global health care crises and overstretched health care resources, Scientific and clinical evidence is evolving on the subacute and long-term effects of COVID-19, which can affect multiple organ systems. As the population of patients recovering from COVID-19 grows, it is critical to establish an understanding of the healthcare issues surrounding them. COVID-19 is now recognized as a multi-organ disease with a broad spectrum of manifestations.

Early reports suggest residual effects of SARS-CoV-2c infection, such as fatigue, dyspnea, chest pain, cognitive impairment, arthralgia and impaired quality of life. Cellular damage, a robust innate immune response with inflammatory cytokine production and a procoagulant state induced by SARS-CoV-2 infection may contribute to these sequelae. Survivors of previous coronavirus infections, including the 2003 SARS epidemic and the 2012 Middle East Respiratory Syndrome (MERS) outbreak, have demonstrated a similar set of persistent symptoms, reinforcing concerns about clinically significant sequelae of COVID-19.

Some countries use several drugs to treat coronavirus. In one of its documents, the Spanish Society of Medicine mentions the recommendations of the protocol developed for the treatment of COVID-19. Specific antiviral treatment requires drugs such as lopinavir/ritonavir administered orally. This drug is indicated to help control human immunodeficiency virus (HIV) infection. It is only administered orally 0 in concomitant treatment with interferon beta-lb. In this case Betaferon is recommended, which is indicated for the treatment of multiple sclerosis. Interferons are proteins produced by the body that help fight against attacks on the immune system, such as viral infections. Lopinavir / ritonavir can also be used in combination with an alpha-2B interferon, such as Intron A, which modifies the immune system response of the patient. the body's immune system to help fight infections and serious illnesses.

Viusid (Catalysis Laboratories, Madrid, Spain) is a nutritional supplement with recognized antioxidant and immunomodulatory properties that have beneficial effects on clinical outcomes related to cirrhosis, such as survival, disease progression and the development of hepatocellular carcinoma (HCC). It contains different molecules (ascorbic acid, zinc and glycyrrhizic acid) with recognized antioxidant and immunomodulatory properties. Glycyrrhizin (0.033g), the most important active ingredient of the supplement, is known to have an immunomodulatory, antiviral and biological effect, and has also demonstrated various anti-inflammatory properties (such as increased production of IL-10: a potent anti-inflammatory cytokine that inhibits the synthesis of many proinflammatory proteins), as well as an anti-apoptotic effect, hepatocyte proliferation and stabilization of cell membranes in the liver. Recent data suggest that Viusid ameliorates oxidative stress through the reduction of 105 lipid peroxidation products and that it has an immunomodulatory effect on cytokine secretion through increased cytokine secretion by the liver. cytokines through increased production of IFN-y and IL-l0, decreased production of IL-ly, stabilized tumor necrosis factor and secretion in HCV patients who have failed previous antiviral treatments.

Taking into account the benefits of Viusid, such as the reduction of inflammation and the immunomodulatory effect, a randomized double-blind study is proposed to evaluate the treatment with this food supplement in 200 patients with post-COVID syndrome diagnosed, assessing the improvement of their symptoms before and after treatment for 1 month, through clinical and paraclfnical examinations.

02

Conditions studied

  • Post-COVID-19 Syndrome
  • COVID-19
  • Dyspnea
  • Fatigue
  • Cough
  • Inflammation

Keywords

  • COVID-19
  • Antioxidants
  • Post-COVID-19 Syndrome
  • Fatigue
  • Immunomodulator
03

In context

Post-Acute COVID-19 Syndrome

604 studies on the registry are indexed under Post-Acute COVID-19 Syndrome; 201 are open to participants now.

This study's enrollment of 200 is above the median of 60 across 416 interventional studies indexed under Post-Acute COVID-19 Syndrome.

Browse Post-Acute COVID-19 Syndrome studies →

Lead sponsor

Catalysis SL is the lead sponsor of 53 studies on the registry; 4 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Patients with one or more of the following symptoms, persistent after suffering COVID-19:

  • Extreme tiredness (Fatigue).
  • Shortness of breath
  • Chest pain
  • Problems with memory or concentration ("Brain fog")
  • Insomnia
  • Palpitations
  • Dizziness
  • Tingling
  • Joint pain
  • Depression and anxiety
  • Tinnitus or ear pain
  • Malaise, diarrhea, stomach pain, loss of appetite
  • Fever, cough, headache, dry throat, changes in sense of smell or taste
  • Rash

Exclusion criteria

Exclusion Criteria:

  • Patients with a positive diagnosis of COVID-19 in the last 14 days.
  • Patients who have presented symptoms similar to Post-COVID syndrome prior to the onset of COVID-19 due to a concomitant disease.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
200 participants (actual)

Study arms

  • Experimental
    Viusid Group

    Oral administration of viusid oral solution 30 mL 3 times a day with the main meals (breakfast, lunch and dinner) for 30 days.

    Dietary Supplement: Viusid Oral Solution

  • Placebo comparator
    Placebo Group

    Oral administration of placebo 30 mL 3 times a day with the main meals (breakfast, lunch and dinner) for 30 days.

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementViusid Oral Solution

    Patients in the experimental intervention group will be administered Viusid Oral Solution (CATALYSIS S.L., Madrid, Spain) 30 mL orally 3 times a day with the main meals (breakfast, lunch and dinner) for 30 days.

  • Dietary supplementPlacebo

    Patients in the experimental intervention group will be administered Placebo (CATALYSIS S.L., Madrid, Spain) 30 mL orally 3 times a day with the main meals (breakfast, lunch and dinner) for 30 days.

06

What researchers measure

Primary outcomes

  1. Evaluation of the symptoms associated with post-COVID-19 syndrome.

    Symptom assessment will be performed using the Visual Analogue Scale to Evaluate Fatigue Severity (VAS-F). The scale consists of 18 items relating to the subjective experience of fatigue. Each item asks respondents to place an "X," representing how they currently feel, along a visual analogue line that extends between two extremes. In contrast to discrete, Likert-type scales, the VAS-F places fewer restrictions on the range of responses available to individuals. However, the benefi ts of a visual analogue scale may be offset by the frequent reluctance of individuals to use the highest and lowest extremes. Scoring Each line is 100 mm in length - thus, scores fall between 0 and 100. The instrument also possesses two subscales: fatigue (items 1-5 and 11-18) and energy (items 6-10). Though individuals do not require training in order to score the scale, developers are quick to point out that high levels of inter-rater reliability are vital if results are to be correctly interpreted.

    Time frame: 30 days

  2. Evaluation of inflammation associated with Post-COVID-19 syndrome.

    Evaluation of inflammation associated with Post-COVID-19 syndrome by analysis of IL-6 in venous blood samples before and after treatment, compared to the placebo group. The values for IL-6 concentration in the blood of healthy donors varied between 0 and 43.5 pg/ml. IL-6 concentrations above 43.5 pg/ml will be taken as inflammation values.

    Time frame: 30 days

  3. Evaluation of oxidative stress associated with Post-COVID-19 syndrome

    Evaluation of oxidative stress associated with Post-COVID-19 syndrome by analysis of glutathione peroxidase concentration in venous blood samples before and after treatment, compared to the placebo group. Reference normal intervals range from 196 to 477 U/L in plasma, from 49 to 93 U/gHb in erythrocytes and from 52 to 96 U/gHb in whole blood.

    Time frame: 30 days

  4. Evaluation of pulmonar fibrosis associated with Post-COVID-19 syndrome

    To evaluate the effect of Viusid on the recovery of respiratory symptoms associated with Post-COVID-19 syndrome by thoracic CT imaging analysis before and after treatment and in comparison with the placebo group. For the CT assessment, image analysis will be performed through digital processing, where different grayscale image data will be extracted in order to obtain numerical information about the evident pulmonary fibrosis, taking into account the intensity of the targets in the region of interest (i.e. lung tissue), comparing it with control images of healthy lungs. In addition, radiomic analysis and segmentation of the affected areas will be applied to obtain quantitative data on the severity of fibrosis. In addition, the images of interest will be visually analyzed by the project's medical staff, so that fibrosis can be directly diagnosed.

    Time frame: 30 days

07

Study locations

1 site
  • Fundación CR INVESTIGATION INSTITUTE
    Bogotá, Bogotá DC 110131, Colombia
08

References and documents

Publications

  • Montani D, Savale L, Noel N, Meyrignac O, Colle R, Gasnier M, Corruble E, Beurnier A, Jutant EM, Pham T, Lecoq AL, Papon JF, Figueiredo S, Harrois A, Humbert M, Monnet X; COMEBAC Study Group. Post-acute COVID-19 syndrome. Eur Respir Rev. 2022 Mar 9;31(163):210185. doi: 10.1183/16000617.0185-2021. Print 2022 Mar 31. PubMed 35264409 ↗
  • Silvagno F, Vernone A, Pescarmona GP. The Role of Glutathione in Protecting against the Severe Inflammatory Response Triggered by COVID-19. Antioxidants (Basel). 2020 Jul 16;9(7):624. doi: 10.3390/antiox9070624. PubMed 32708578 ↗
  • Sudre CH, Murray B, Varsavsky T, Graham MS, Penfold RS, Bowyer RC, Pujol JC, Klaser K, Antonelli M, Canas LS, Molteni E, Modat M, Jorge Cardoso M, May A, Ganesh S, Davies R, Nguyen LH, Drew DA, Astley CM, Joshi AD, Merino J, Tsereteli N, Fall T, Gomez MF, Duncan EL, Menni C, Williams FMK, Franks PW, Chan AT, Wolf J, Ourselin S, Spector T, Steves CJ. Attributes and predictors of long COVID. Nat Med. 2021 Apr;27(4):626-631. doi: 10.1038/s41591-021-01292-y. Epub 2021 Mar 10. Erratum In: Nat Med. 2021 Jun;27(6):1116. doi: 10.1038/s41591-021-01361-2. PubMed 33692530 ↗
  • Vilar Gomez E, Gra Oramas B, Soler E, Llanio Navarro R, Ruenes Domech C. Viusid, a nutritional supplement, in combination with interferon alpha-2b and ribavirin in patients with chronic hepatitis C. Liver Int. 2007 Mar;27(2):247-59. doi: 10.1111/j.1478-3231.2006.01411.x. PubMed 17311621 ↗

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Statistical analysis plan, Clinical study report

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 3, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06437210
Lead sponsor
Catalysis SL
Responsible party
Sponsor
First posted
May 31, 2024
Start date
Feb 15, 2022
Primary completion
Dec 15, 2023
Completion
Mar 15, 2024
Last update
Jun 3, 2024

Oversight

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

Not currently enrolling

This study is completed, as verified in May 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Viusid

Start the discussion