ClinicalTrials.gg
CompletedNCT03830905Updated Nov 16, 2020

Study to Assess Efficacy and Safety of XC221 200 mg in the Treatment of Influenza or Other ARVI

A Phase 2 interventional study of XC221 and Placebo in Influenza and Acute Respiratory Viral Infections, sponsored by PHARMENTERPRISES LLC. Completed at 16 sites in Russian Federation. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-11-16.

Sponsored by PHARMENTERPRISES LLC · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The innovative drug XC221 is planned for use in treatment of acute respiratory viral infections in a double-blind, randomized, placebo-controlled, comparative multicenter study assessing the safety, tolerability and efficacy of XC221 at a dose of 200 mg per day in patients with uncomplicated influenza or other acute respiratory viral infections during the 3-days treatment.

Read the detailed description

A double-blind, randomized, placebo-controlled, comparative multicenter study in two groups. A total of 120 patients with uncomplicated influenza or other acute respiratory viral infections are planned to be randomized. Patients will be randomized into 2 groups: 60 patients in the treatment group 200 mg XC221 and 60 patients in the placebo group. The purpose of the clinical trial is to assess the safety, tolerability and efficacy of the drug XC21 in treatment of influenza or other acute respiratory viral infections. The primary objective is to demonstrate the difference between the groups in the time of the onset of sustained improvement in clinical symptoms according to the Modified Jackson Scale. The study will consist of the following periods: screening (duration not more than 36 hours from the moment of the first symptoms of the disease), treatment period (3 days), follow-up period (11 ± 1 days after completion of treatment with the study drug/placebo). The duration of participation in the study for each patient is no more than 16 days and 12 hours.

02

Conditions studied

  • Influenza
  • Acute Respiratory Viral Infections

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03

In context

Influenza, Human

2,356 studies on the registry are indexed under Influenza, Human; 184 are open to participants now.

This study's enrollment of 120 is below the median of 227 across 1,957 interventional studies indexed under Influenza, Human.

Browse Influenza, Human studies →

Lead sponsor

PHARMENTERPRISES LLC is the lead sponsor of 11 studies on the registry; 1 is 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
No

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

  1. Both sexes aged 18 years and older.
  2. Clinically diagnosed influenza or ARVI mild or moderate severity.
  3. Patient's body temperature ≥37.5ºС and at least 1 symptom from Modified Jackson Scale estimated more than 2 points.
  4. Uncomplicated course of influenza or ARVI based on clinical estimations.
  5. The first 36 hours from the beginning of symptoms of influenza or ARVI.
  6. Women of reproductive age (who are not in menopause and who have not undergone surgical sterilization) and men who have sexual activity should use a reliable method of (acceptable methods of contraception in this study are: intrauterine devices, oral contraceptives, contraceptive patch, long-acting injectable contraceptives, a double barrier method (condom and diaphragm with spermicide) throughout the study period.
  7. Compliance with the treatment regimen, visits and laboratory examinations provided by the protocol.
  8. Signed Form.

Exclusion criteria

Exclusion Criteria:

  1. Complications of influenza or ARVI (including the presence / development of bacterial infection).
  2. The need for inpatient treatment of influenza and ARVI.
  3. to of the drug XC221 or placebo.
  4. Antiviral medications 7 days prior to screening (antiviral agents, interferons and interferon inducers, drugs that have immunomodulating action) or anti-infective agents of systemic or local action.
  5. Severe infection with signs of cardiovascular insufficiency development and other manifestations of infectious-toxic shock, as well as with the presence of neuroinfection syndrome (encephalic and meningoencephalic reactions, polyradiculoneuritis, neuritis).
  6. Signs of of viral pneumonia symptoms (the presence of two or more of the following symptoms): dyspnea, chest pain when coughing, systemic cyanosis, dullness of percussion sound with a symmetrical evaluation of the upper and lower sections of the lungs).
  7. Infectious diseases during the last week before including into the study.
  8. Bronchial asthma, , pulmonary emphysema in history.
  9. History of increased convulsive activity.
  10. Severe, decompensated or unstable somatic diseases (any diseases or conditions that are life-threatening or may worsen the patient's prognosis, and make him/her ineligible for the clinical study).
  11. History of oncological diseases, , tuberculosis.
  12. Drug or alcohol abuse.
  13. Lactose intolerance, lactase deficiency, glucose-galactose malabsorption.
  14. Participation in any other clinical trial in the last 90 days.
  15. Pregnancy or lactation.
  16. Military or prison populations.
  17. Impossibility or inability to comply with the study procedures.
  18. A member of the investigator's family or other person interested in the results of the study.
  19. Deviations from laboratory standards, which prevent the inclusion of the patient in the study according to the Investigator.
  20. A history of kidney failure.
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
120 participants (actual)

Study arms

  • Experimental
    XC221

    XC221 200 mg orally. 2 tablets of XC221 100 mg once daily during 3 days of treatment period

    Drug: XC221

  • Placebo comparator
    Placebo

    Placebo orally. 2 tablets of Placebo once daily during 3 days of treatment period

    Drug: Placebo

Interventions

  • DrugXC221

    Participants will receive 200 mg XC221 once a day during 3 days

  • DrugPlacebo

    Participants will receive Placebo once a day during 3 days

06

What researchers measure

Primary outcomes

  1. Time to sustained improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.

    The time before the onset of sustained improvement in clinical symptoms according to the Modified Jackson Scale (no more than 1 point for each symptom), measured in hours from the moment of the first dose of the drug. Modified Jackson Scale measures individuals' subjective ratings the severity of 12 respiratory symptoms. Ranges for each symptom: 0 points (no symptoms) - 3 points (the most severe). Total score (ranges from 0 to 32 points) is a sum of the point for each symptom.

    Time frame: From the moment of the first dose up to Day 14

Secondary outcomes

  1. The time before the onset of persistent improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms (0 points).

    The time of the first assessment of 3 consecutive ratings on the Modified Jackson Scale, in which all the clinical symptoms were 0 points. Modified Jackson Scale measures individuals' subjective ratings the severity of 12 respiratory symptoms. Ranges for each symptom: 0 points (no symptoms) - 3 points (the most severe). Total score (ranges from 0 to 32 points) is a sum of the point for each symptom.

    Time frame: From the moment of the first dose up to Day 14

  2. The time before the onset of persistent improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.

    Total score of no more than 3 points, when there is no more than 1 point for each symptom, measured in hours from the moment of taking the first dose of the drug. Modified Jackson Scale measures individuals' subjective ratings the severity of 12 respiratory symptoms. Ranges for each symptom: 0 points (no symptoms) - 3 points (the most severe). Total score (ranges from 0 to 32 points) is a sum of the point for each symptom.

    Time frame: From the moment of the first dose up to Day 14

  3. Time to normalization of body temperature.

    Measured in hours. Normalization means the establishment of body temperature below 37° C without a rise above these values in the subsequent observation period.

    Time frame: From the moment of the first dose up to Day 14

  4. The average score according to the Modified Jackson Scale for measuring respiratory symptoms at the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th days.

    The average score according to the Modified Jackson Scale on the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th days. Modified Jackson Scale measures individuals' subjective ratings the severity of 12 respiratory symptoms. Ranges for each symptom: 0 points (no symptoms) - 3 points (the most severe). Total score (ranges from 0 to 32 points) is a sum of the point for each symptom.

    Time frame: From the moment of the first dose up to Day 14

  5. The proportion of patients with a sum of not more than 3 points according to the Modified Jackson Scale for measuring respiratory symptoms at the 1st, 2nd, 3rd, 4th, 5th, 6th , The 7th, 8th days

    Score for each symptom should be no higher than 1 point at the 1st, 2nd, 3rd, 4th, 5th, 6th , The 7th, 8th days from the moment of the start of treatment. Modified Jackson Scale measures individuals' subjective ratings the severity of 12 respiratory symptoms. Ranges for each symptom: 0 points (no symptoms) - 3 points (the most severe). Total score (ranges from 0 to 32 points) is a sum of the point for each symptom.

    Time frame: From the moment of the first dose up to Day 14

  6. The proportion of patients with the normalization of body temperature on the first - the 14th days from the start of treatment;

    Time frame: From the moment of the first dose up to Day 14

  7. Time to disappearance (0 points) of each of the symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.

    Symptom (sneezing, rhinorrhea, nasal congestion, cough, fever, malaise, chills, headache, myalgia, sore throat, tickling, hoarseness) manifested at the level of 2 or 3 points at the first assessment at Visit 0 (Day 0). Modified Jackson Scale measures individuals' subjective ratings the severity of 12 respiratory symptoms. Ranges for each symptom: 0 points (no symptoms) - 3 points (the most severe). Total score (ranges from 0 to 32 points) is a sum of the point for each symptom.

    Time frame: From the moment of the first dose up to Day 14

  8. The proportion of patients with 0 points score for each of the symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.

    Modified Jackson Scale (sneezing, rhinorrhea, nasal congestion, cough, fever, malaise, chills, headache, myalgia, sore throat, tickling, hoarseness) at the 2nd, 3rd 2nd, 4th, 5th, 6th, 7th and 8th days from the moment of the start of treatment in a population of patients with the corresponding symptom shown at the level of 2 or 3 points at Visit 0 (Day 0). Modified Jackson Scale measures individuals' subjective ratings the severity of 12 respiratory symptoms. Ranges for each symptom: 0 points (no symptoms) - 3 points (the most severe). Total score (ranges from 0 to 32 points) is a sum of the point for each symptom.

    Time frame: From the moment of the first dose up to Day 14

  9. The proportion of patients with a detected viral pathogen

    The proportion of patients with a detected viral pathogen at Visit 0, Visit 4 and Visit 6.

    Time frame: From the moment of the first dose up to Day 14

  10. The proportion of patients with a detected viral pathogen at Visit 4 and Visit 6 compared with the initial proportion of such patients in the XC221.

    Time frame: From the moment of the first dose up to Day 14

  11. The frequency of adverse events (AEs) and serious adverse events (SAEs) in the XC221 treatment group and in the placebo group.

    Time frame: From the moment of the first dose up to Day 14

Other outcomes

  1. The average concentration of MxA protein in the blood at Visit 1, Visit 4 and at Visit 6.

    Time frame: From Day 1 up to Day 6

  2. Changes in the concentration of MxA protein in the blood at Visit 4 and at Visit 6 compared to Visit 1.

    Time frame: From Day 1 up to Day 6

  3. The average concentration of C-reactive protein in the blood at Visit 1, Visit 4 and Visit 6.

    Time frame: From Day 1 up to Day 6

  4. Changes in the concentration of C-reactive protein in the blood at Visit 4 and Visit 6 compared to Visit 1.

    Time frame: From Day 1 up to Day 6

  5. The average concentration of cytokines at Visit 1, Visit 4 and at Visit 6.

    The average concentration of 6Ckine, BCA-1, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, Fractalkine, GCP-2, GM-CSF, Gro-α, Gro-β, I-309, IFN- γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-16, IP-10, I-TAC, MCP-1, MCP-2, MCP-3, MCP-4, MDC, MIF, MIG, MIP-1α, MIP-1δ, MIP-3α, MIP-3β, MPIF-1, SCYB16, SDF-1α + β, TARC, TECK, TNF-α in blood at Visit 1, Visit 4 and at Visit 6.

    Time frame: From Day 1 up to Day 6

  6. The percentage change in the concentration of cytokines at Visit 4 and at Visit 6 compared with Visit 1.

    The percentage change in the concentration of 6Ckine, BCA-1, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, Fractalkine, GCP-2, GM-CSF, Gro-α, Gro-β, I-309, IFN -γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-16, IP-10, I-TAC, MCP-1, MCP-2, MCP-3 , MCP-4, MDC, MIF, MIG, MIP-1α, MIP-1δ, MIP-3α, MIP-3β, MPIF-1, SCYB16, SDF-1α + β, TARC, TECK, TNF-α in blood at Visit 4 and Visit 6 compared with Visit 1.

    Time frame: From Day 1 up to Day 6

  7. Correlation between the concentration of cytokines/chemokines and the assessment of the Modified Jackson scale for measuring respiratory symptoms (in dynamics).

    Modified Jackson Scale measures individuals' subjective ratings the severity of 12 respiratory symptoms. Ranges for each symptom: 0 points (no symptoms) - 3 points (the most severe). Total score (ranges from 0 to 32 points) is a sum of the point for each symptom.

    Time frame: From the moment of the first dose up to Day 14

  8. The average concentration of cytokines in a smear from the mucosa of the nasopharynx and oropharyngeal at Visit 1, Visit 4 and Visit 6

    The average concentration of 6Ckine, BCA-1, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, Fractalkine, GCP-2, GM-CSF, Gro-α, Gro-β, I-309, IFN- γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-16, IP-10, I-TAC, MCP-1, MCP-2, MCP-3, MCP-4, MDC, MIF, MIG, MIP-1α, MIP-1δ, MIP-3α, MIP-3β, MPIF-1, SCYB16, SDF-1α + β, TARC, TECK, TNF-α in a smear from the mucosa of the nasopharynx and oropharyngeal at Visit 1, Visit 4 and Visit 6.

    Time frame: From Day 1 up to Day 6

  9. The percentage change in the concentration of cytokines in a smear from the mucous membrane of the nasopharynx and oropharynx of patients on Visit 4 and on Visit 6 compared to Visit 1.

    The percentage change in the concentration of 6Ckine, BCA-1, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, Fractalkine, GCP-2, GM-CSF, Gro-α, Gro-β, I-309, IFN- γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-16, IP-10, I-TAC, MCP-1, MCP-2, MCP-3, MCP-4, MDC, MIF, MIG, MIP-1α, MIP-1δ, MIP-3α, MIP-3β, MPIF-1, SCYB16, SDF-1α + β, TARC, TECK, TNF-α in a smear from the mucous membrane of the nasopharynx and oropharynx of patients on Visit 4 and on Visit 6 compared to Visit 1.

    Time frame: From Day 1 up to Day 6

07

Study locations

16 sites
  • Federal State Budgetary Institution of Health "Northern Medical Clinical Center named after NA Semashko of the Federal Medical and Biological Agency"
    Arkhangelsk, 163000, Russian Federation
  • Regional State Budgetary Institution of Health "Belgorod Regional Clinical Hospital of St. Joasaph"
    Belgorod, 308007, Russian Federation
  • City Clinical Hospital №9
    Izhevsk, 426063, Russian Federation
  • Kuban State Medical University
    Krasnodar, 350063, Russian Federation
  • State budget institution of health care of the Moscow region "Krasnogorsk city hospital number 1"
    Krasnogorsk, 143408, Russian Federation
  • Non-governmental Healthcare Institution "N.A.Semashko Road Clinical Hospital at the Lyublino station of the open joint-stock company "Russian Railways"
    Moscow, 109386, Russian Federation
  • Ryazan State Medical University n.a. Pavlov
    Ryazan', 390026, Russian Federation
  • Federal State Budgetary Educational Institution of Higher Education "Ryazan State Medical University named after Academician I.P. Pavlova" of the Ministry of Health of the Russian Federation
    Ryazan, 390026, Russian Federation
  • The Center for Prevention and Fight about AIDS and Infectious Diseases
    Saint Petersburg, 190103, Russian Federation
  • The Consulting and Diagnostic Center with out-patient help of the Administration of the President of the Russian Federation
    Saint Petersburg, 197110, Russian Federation
  • Research Institute of Influenza
    Saint Petersburg, 197376, Russian Federation
  • City Clinical Hospital №40 of Kurortny District
    Saint Petersburg, 197706, Russian Federation
  • LLC "Aurora Medi"
    St. Petersburg, 193232, Russian Federation
  • LLC "Astarta"
    St. Petersburg, 199226, Russian Federation
  • Federal State Budgetary Educational Institution of Higher Education "Yaroslavl State Medical University" of the Ministry of Health of the Russian Federation
    Yaroslavl, 150000, Russian Federation
  • State Budgetary Healthcare Institution (SBHI) of Yaroslavl region
    Yaroslavl, 150007, Russian Federation
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2019 to primary completion in Jul 2019, 5 months.

Of 86 industry-sponsored phase 2 interventional studies under Influenza, Human, half reached primary completion within 7 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 14. This study's 5 months is below that.

Counting every sponsor, half of 122 studies reached it within 10 months; a quarter within 5 and three quarters within 19.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 30, 2019
First posted
Feb 5, 2019
StartActual
Jan 31, 2019
Primary completionActual
Jul 3, 2019
CompletionActual
Jul 3, 2019
Last update
Nov 16, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 16, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03830905
Lead sponsor
PHARMENTERPRISES LLC
Collaborators
RSV Therapeutics LLC
Responsible party
Sponsor
First posted
Feb 5, 2019
Start date
Jan 31, 2019
Primary completion
Jul 3, 2019
Completion
Jul 3, 2019
Last update
Nov 16, 2020

Oversight

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

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Studies of the drug tested here: XC221

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