<clinical_study>
  <!-- This xml conforms to an XML Schema at:
    https://clinicaltrials.gov/ct2/html/images/info/public.xsd -->
  <required_header>
    <download_date>ClinicalTrials.gov processed this data on September 20, 2023</download_date>
    <link_text>Link to the current ClinicalTrials.gov record.</link_text>
    <url>https://clinicaltrials.gov/ct2/show/NCT03830905</url>
  </required_header>
  <id_info>
    <org_study_id>ARI-XC221-03</org_study_id>
    <nct_id>NCT03830905</nct_id>
  </id_info>
  <brief_title>Study to Assess Efficacy and Safety of XC221 200 mg in the Treatment of Influenza or Other ARVI</brief_title>
  <official_title>Double-blind Randomized Placebo-controlled Comparative Multicenter Study to Assess the Safety, Tolerability and Efficacy of XC221 in a Dose of 200mg Per Day in Patients With Uncomplicated Influenza or Other ARVI</official_title>
  <sponsors>
    <lead_sponsor>
      <agency>PHARMENTERPRISES LLC</agency>
      <agency_class>Industry</agency_class>
    </lead_sponsor>
    <collaborator>
      <agency>RSV Therapeutics LLC</agency>
      <agency_class>Industry</agency_class>
    </collaborator>
  </sponsors>
  <source>PHARMENTERPRISES LLC</source>
  <oversight_info>
    <has_dmc>No</has_dmc>
    <is_fda_regulated_drug>No</is_fda_regulated_drug>
    <is_fda_regulated_device>No</is_fda_regulated_device>
  </oversight_info>
  <brief_summary>
    <textblock>
      The innovative drug XC221 is planned for use in treatment of acute respiratory viral&#xD;
      infections in a double-blind, randomized, placebo-controlled, comparative multicenter study&#xD;
      assessing the safety, tolerability and efficacy of XC221 at a dose of 200 mg per day in&#xD;
      patients with uncomplicated influenza or other acute respiratory viral infections during the&#xD;
      3-days treatment.&#xD;
    </textblock>
  </brief_summary>
  <detailed_description>
    <textblock>
      A double-blind, randomized, placebo-controlled, comparative multicenter study in two groups.&#xD;
      A total of 120 patients with uncomplicated influenza or other acute respiratory viral&#xD;
      infections are planned to be randomized. Patients will be randomized into 2 groups: 60&#xD;
      patients in the treatment group 200 mg XC221 and 60 patients in the placebo group. The&#xD;
      purpose of the clinical trial is to assess the safety, tolerability and efficacy of the drug&#xD;
      XC21 in treatment of influenza or other acute respiratory viral infections. The primary&#xD;
      objective is to demonstrate the difference between the groups in the time of the onset of&#xD;
      sustained improvement in clinical symptoms according to the Modified Jackson Scale. The study&#xD;
      will consist of the following periods: screening (duration not more than 36 hours from the&#xD;
      moment of the first symptoms of the disease), treatment period (3 days), follow-up period (11&#xD;
      ± 1 days after completion of treatment with the study drug/placebo). The duration of&#xD;
      participation in the study for each patient is no more than 16 days and 12 hours.&#xD;
    </textblock>
  </detailed_description>
  <overall_status>Completed</overall_status>
  <start_date type="Actual">January 31, 2019</start_date>
  <completion_date type="Actual">July 3, 2019</completion_date>
  <primary_completion_date type="Actual">July 3, 2019</primary_completion_date>
  <phase>Phase 2</phase>
  <study_type>Interventional</study_type>
  <has_expanded_access>No</has_expanded_access>
  <study_design_info>
    <allocation>Randomized</allocation>
    <intervention_model>Parallel Assignment</intervention_model>
    <primary_purpose>Treatment</primary_purpose>
    <masking>Double (Participant, Investigator)</masking>
  </study_design_info>
  <primary_outcome>
    <measure>Time to sustained improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>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.&#xD;
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.</description>
  </primary_outcome>
  <secondary_outcome>
    <measure>The time before the onset of persistent improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms (0 points).</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>The time of the first assessment of 3 consecutive ratings on the Modified Jackson Scale, in which all the clinical symptoms were 0 points.&#xD;
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.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>The time before the onset of persistent improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>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.&#xD;
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.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>Time to normalization of body temperature.</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>Measured in hours. Normalization means the establishment of body temperature below 37° C without a rise above these values in the subsequent observation period.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>The average score according to the Modified Jackson Scale for measuring respiratory symptoms at the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th days.</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>The average score according to the Modified Jackson Scale on the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th days.&#xD;
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.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>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</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>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.&#xD;
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.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>The proportion of patients with the normalization of body temperature on the first - the 14th days from the start of treatment;</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
  </secondary_outcome>
  <secondary_outcome>
    <measure>Time to disappearance (0 points) of each of the symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>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).&#xD;
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.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>The proportion of patients with 0 points score for each of the symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>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).&#xD;
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.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>The proportion of patients with a detected viral pathogen</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>The proportion of patients with a detected viral pathogen at Visit 0, Visit 4 and Visit 6.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>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.</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
  </secondary_outcome>
  <secondary_outcome>
    <measure>The frequency of adverse events (AEs) and serious adverse events (SAEs) in the XC221 treatment group and in the placebo group.</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
  </secondary_outcome>
  <other_outcome>
    <measure>The average concentration of MxA protein in the blood at Visit 1, Visit 4 and at Visit 6.</measure>
    <time_frame>From Day 1 up to Day 6</time_frame>
  </other_outcome>
  <other_outcome>
    <measure>Changes in the concentration of MxA protein in the blood at Visit 4 and at Visit 6 compared to Visit 1.</measure>
    <time_frame>From Day 1 up to Day 6</time_frame>
  </other_outcome>
  <other_outcome>
    <measure>The average concentration of C-reactive protein in the blood at Visit 1, Visit 4 and Visit 6.</measure>
    <time_frame>From Day 1 up to Day 6</time_frame>
  </other_outcome>
  <other_outcome>
    <measure>Changes in the concentration of C-reactive protein in the blood at Visit 4 and Visit 6 compared to Visit 1.</measure>
    <time_frame>From Day 1 up to Day 6</time_frame>
  </other_outcome>
  <other_outcome>
    <measure>The average concentration of cytokines at Visit 1, Visit 4 and at Visit 6.</measure>
    <time_frame>From Day 1 up to Day 6</time_frame>
    <description>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.</description>
  </other_outcome>
  <other_outcome>
    <measure>The percentage change in the concentration of cytokines at Visit 4 and at Visit 6 compared with Visit 1.</measure>
    <time_frame>From Day 1 up to Day 6</time_frame>
    <description>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.</description>
  </other_outcome>
  <other_outcome>
    <measure>Correlation between the concentration of cytokines/chemokines and the assessment of the Modified Jackson scale for measuring respiratory symptoms (in dynamics).</measure>
    <time_frame>From the moment of the first dose up to Day 14</time_frame>
    <description>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.</description>
  </other_outcome>
  <other_outcome>
    <measure>The average concentration of cytokines in a smear from the mucosa of the nasopharynx and oropharyngeal at Visit 1, Visit 4 and Visit 6</measure>
    <time_frame>From Day 1 up to Day 6</time_frame>
    <description>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.</description>
  </other_outcome>
  <other_outcome>
    <measure>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.</measure>
    <time_frame>From Day 1 up to Day 6</time_frame>
    <description>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.</description>
  </other_outcome>
  <number_of_arms>2</number_of_arms>
  <enrollment type="Actual">120</enrollment>
  <condition>Influenza</condition>
  <condition>Acute Respiratory Viral Infections</condition>
  <arm_group>
    <arm_group_label>XC221</arm_group_label>
    <arm_group_type>Experimental</arm_group_type>
    <description>XC221 200 mg orally. 2 tablets of XC221 100 mg once daily during 3 days of treatment period</description>
  </arm_group>
  <arm_group>
    <arm_group_label>Placebo</arm_group_label>
    <arm_group_type>Placebo Comparator</arm_group_type>
    <description>Placebo orally. 2 tablets of Placebo once daily during 3 days of treatment period</description>
  </arm_group>
  <intervention>
    <intervention_type>Drug</intervention_type>
    <intervention_name>XC221</intervention_name>
    <description>Participants will receive 200 mg XC221 once a day during 3 days</description>
    <arm_group_label>XC221</arm_group_label>
  </intervention>
  <intervention>
    <intervention_type>Drug</intervention_type>
    <intervention_name>Placebo</intervention_name>
    <description>Participants will receive Placebo once a day during 3 days</description>
    <arm_group_label>Placebo</arm_group_label>
  </intervention>
  <eligibility>
    <criteria>
      <textblock>
        Inclusion Criteria:&#xD;
&#xD;
          1. Both sexes aged 18 years and older.&#xD;
&#xD;
          2. Clinically diagnosed influenza or ARVI mild or moderate severity.&#xD;
&#xD;
          3. Patient's body temperature ≥37.5ºС and at least 1 symptom from Modified Jackson Scale&#xD;
             estimated more than 2 points.&#xD;
&#xD;
          4. Uncomplicated course of influenza or ARVI based on clinical estimations.&#xD;
&#xD;
          5. The first 36 hours from the beginning of symptoms of influenza or ARVI.&#xD;
&#xD;
          6. Women of reproductive age (who are not in menopause and who have not undergone&#xD;
             surgical sterilization) and men who have sexual activity should use a reliable method&#xD;
             of contraception (acceptable methods of contraception in this study are: intrauterine&#xD;
             devices, oral contraceptives, contraceptive patch, long-acting injectable&#xD;
             contraceptives, a double barrier method (condom and diaphragm with spermicide)&#xD;
             throughout the study period.&#xD;
&#xD;
          7. Compliance with the treatment regimen, visits and laboratory examinations provided by&#xD;
             the protocol.&#xD;
&#xD;
          8. Signed Informed Consent Form.&#xD;
&#xD;
        Exclusion Criteria:&#xD;
&#xD;
          1. Complications of influenza or ARVI (including the presence / development of bacterial&#xD;
             infection).&#xD;
&#xD;
          2. The need for inpatient treatment of influenza and ARVI.&#xD;
&#xD;
          3. Hypersensitivity to excipients of the drug XC221 or placebo.&#xD;
&#xD;
          4. Antiviral medications 7 days prior to screening (antiviral agents, interferons and&#xD;
             interferon inducers, drugs that have immunomodulating action) or anti-infective agents&#xD;
             of systemic or local action.&#xD;
&#xD;
          5. Severe infection with signs of cardiovascular insufficiency development and other&#xD;
             manifestations of infectious-toxic shock, as well as with the presence of&#xD;
             neuroinfection syndrome (encephalic and meningoencephalic reactions,&#xD;
             polyradiculoneuritis, neuritis).&#xD;
&#xD;
          6. Signs of of viral pneumonia symptoms (the presence of two or more of the following&#xD;
             symptoms): dyspnea, chest pain when coughing, systemic cyanosis, dullness of&#xD;
             percussion sound with a symmetrical evaluation of the upper and lower sections of the&#xD;
             lungs).&#xD;
&#xD;
          7. Infectious diseases during the last week before including into the study.&#xD;
&#xD;
          8. Bronchial asthma, COPD, pulmonary emphysema in history.&#xD;
&#xD;
          9. History of increased convulsive activity.&#xD;
&#xD;
         10. Severe, decompensated or unstable somatic diseases (any diseases or conditions that&#xD;
             are life-threatening or may worsen the patient's prognosis, and make him/her&#xD;
             ineligible for the clinical study).&#xD;
&#xD;
         11. History of oncological diseases, HIV, tuberculosis.&#xD;
&#xD;
         12. Drug or alcohol abuse.&#xD;
&#xD;
         13. Lactose intolerance, lactase deficiency, glucose-galactose malabsorption.&#xD;
&#xD;
         14. Participation in any other clinical trial in the last 90 days.&#xD;
&#xD;
         15. Pregnancy or lactation.&#xD;
&#xD;
         16. Military or prison populations.&#xD;
&#xD;
         17. Impossibility or inability to comply with the study procedures.&#xD;
&#xD;
         18. A member of the investigator's family or other person interested in the results of the&#xD;
             study.&#xD;
&#xD;
         19. Deviations from laboratory standards, which prevent the inclusion of the patient in&#xD;
             the study according to the Investigator.&#xD;
&#xD;
         20. A history of kidney failure.&#xD;
      </textblock>
    </criteria>
    <gender>All</gender>
    <minimum_age>18 Years</minimum_age>
    <maximum_age>N/A</maximum_age>
    <healthy_volunteers>No</healthy_volunteers>
  </eligibility>
  <location>
    <facility>
      <name>Federal State Budgetary Institution of Health &quot;Northern Medical Clinical Center named after NA Semashko of the Federal Medical and Biological Agency&quot;</name>
      <address>
        <city>Arkhangelsk</city>
        <zip>163000</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>Regional State Budgetary Institution of Health &quot;Belgorod Regional Clinical Hospital of St. Joasaph&quot;</name>
      <address>
        <city>Belgorod</city>
        <zip>308007</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>City Clinical Hospital №9</name>
      <address>
        <city>Izhevsk</city>
        <zip>426063</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>Kuban State Medical University</name>
      <address>
        <city>Krasnodar</city>
        <zip>350063</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>State budget institution of health care of the Moscow region &quot;Krasnogorsk city hospital number 1&quot;</name>
      <address>
        <city>Krasnogorsk</city>
        <zip>143408</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>Non-governmental Healthcare Institution &quot;N.A.Semashko Road Clinical Hospital at the Lyublino station of the open joint-stock company &quot;Russian Railways&quot;</name>
      <address>
        <city>Moscow</city>
        <zip>109386</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>Ryazan State Medical University n.a. Pavlov</name>
      <address>
        <city>Ryazan'</city>
        <zip>390026</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>Federal State Budgetary Educational Institution of Higher Education &quot;Ryazan State Medical University named after Academician I.P. Pavlova&quot; of the Ministry of Health of the Russian Federation</name>
      <address>
        <city>Ryazan</city>
        <zip>390026</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>The Center for Prevention and Fight about AIDS and Infectious Diseases</name>
      <address>
        <city>Saint Petersburg</city>
        <zip>190103</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>The Consulting and Diagnostic Center with out-patient help of the Administration of the President of the Russian Federation</name>
      <address>
        <city>Saint Petersburg</city>
        <zip>197110</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>Research Institute of Influenza</name>
      <address>
        <city>Saint Petersburg</city>
        <zip>197376</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>City Clinical Hospital №40 of Kurortny District</name>
      <address>
        <city>Saint Petersburg</city>
        <zip>197706</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>LLC &quot;Aurora Medi&quot;</name>
      <address>
        <city>St. Petersburg</city>
        <zip>193232</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>LLC &quot;Astarta&quot;</name>
      <address>
        <city>St. Petersburg</city>
        <zip>199226</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>Federal State Budgetary Educational Institution of Higher Education &quot;Yaroslavl State Medical University&quot; of the Ministry of Health of the Russian Federation</name>
      <address>
        <city>Yaroslavl</city>
        <zip>150000</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location>
    <facility>
      <name>State Budgetary Healthcare Institution (SBHI) of Yaroslavl region</name>
      <address>
        <city>Yaroslavl</city>
        <zip>150007</zip>
        <country>Russian Federation</country>
      </address>
    </facility>
  </location>
  <location_countries>
    <country>Russian Federation</country>
  </location_countries>
  <verification_date>November 2020</verification_date>
  <study_first_submitted>January 30, 2019</study_first_submitted>
  <study_first_submitted_qc>February 2, 2019</study_first_submitted_qc>
  <study_first_posted type="Actual">February 5, 2019</study_first_posted>
  <last_update_submitted>November 12, 2020</last_update_submitted>
  <last_update_submitted_qc>November 12, 2020</last_update_submitted_qc>
  <last_update_posted type="Actual">November 16, 2020</last_update_posted>
  <responsible_party>
    <responsible_party_type>Sponsor</responsible_party_type>
  </responsible_party>
  <condition_browse>
    <!-- CAUTION:  The following MeSH terms are assigned with an imperfect algorithm            -->
    <mesh_term>Influenza, Human</mesh_term>
    <mesh_term>Virus Diseases</mesh_term>
  </condition_browse>
  <patient_data>
    <sharing_ipd>No</sharing_ipd>
  </patient_data>
  <pending_results>
    <submitted>August 26, 2021</submitted>
    <returned>September 23, 2021</returned>
  </pending_results>
  <!-- Results have not yet been posted for this study                                          -->
</clinical_study>


download date: ClinicalTrials.gov processed this data on September 20, 2023
link text: Link to the current ClinicalTrials.gov record.
url: https://clinicaltrials.gov/ct2/show/NCT03830905
org study id: ARI-XC221-03
nct id: NCT03830905
lead sponsor: 
collaborator: 
has dmc: No
is fda regulated drug: No
is fda regulated device: No
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.
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.
allocation: Randomized
intervention model: Parallel Assignment
primary purpose: Treatment
masking: Double (Participant, Investigator)
measure: Time to sustained improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.
time frame: From the moment of the first dose up to Day 14
description: 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.
measure: The time before the onset of persistent improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms (0 points).
time frame: From the moment of the first dose up to Day 14
description: 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.
measure: The time before the onset of persistent improvement in clinical symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.
time frame: From the moment of the first dose up to Day 14
description: 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.
measure: Time to normalization of body temperature.
time frame: From the moment of the first dose up to Day 14
description: Measured in hours. Normalization means the establishment of body temperature below 37° C without a rise above these values in the subsequent observation period.
measure: The average score according to the Modified Jackson Scale for measuring respiratory symptoms at the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th days.
time frame: From the moment of the first dose up to Day 14
description: 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.
measure: 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
time frame: From the moment of the first dose up to Day 14
description: 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.
measure: 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
measure: Time to disappearance (0 points) of each of the symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.
time frame: From the moment of the first dose up to Day 14
description: 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.
measure: The proportion of patients with 0 points score for each of the symptoms according to the Modified Jackson Scale for measuring respiratory symptoms.
time frame: From the moment of the first dose up to Day 14
description: 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.
measure: The proportion of patients with a detected viral pathogen
time frame: From the moment of the first dose up to Day 14
description: The proportion of patients with a detected viral pathogen at Visit 0, Visit 4 and Visit 6.
measure: 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
measure: 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
measure: 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
measure: 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
measure: 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
measure: 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
measure: The average concentration of cytokines at Visit 1, Visit 4 and at Visit 6.
time frame: From Day 1 up to Day 6
description: 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.
measure: The percentage change in the concentration of cytokines at Visit 4 and at Visit 6 compared with Visit 1.
time frame: From Day 1 up to Day 6
description: 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.
measure: Correlation between the concentration of cytokines/chemokines and the assessment of the Modified Jackson scale for measuring respiratory symptoms (in dynamics).
time frame: From the moment of the first dose up to Day 14
description: 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.
measure: The average concentration of cytokines 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
description: 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.
measure: 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.
time frame: From Day 1 up to Day 6
description: 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.
arm group label: XC221
arm group type: Experimental
description: XC221 200 mg orally. 2 tablets of XC221 100 mg once daily during 3 days of treatment period
arm group label: Placebo
arm group type: Placebo Comparator
description: Placebo orally. 2 tablets of Placebo once daily during 3 days of treatment period
intervention type: Drug
intervention name: XC221
description: Participants will receive 200 mg XC221 once a day during 3 days
arm group label: XC221
intervention type: Drug
intervention name: Placebo
description: Participants will receive Placebo once a day during 3 days
arm group label: Placebo
criteria: 
gender: All
minimum age: 18 Years
maximum age: N/A
healthy volunteers: No
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country: Russian Federation
responsible party type: Sponsor
mesh term: Influenza, Human
mesh term: Virus Diseases
sharing ipd: No
submitted: August 26, 2021
returned: September 23, 2021