Clinical Trial to Study the Efficacy and Safety of Fluorothiazinone (N.F. Gamaleya NRCEM) in Prophylaxis of Nosocomial Bacterial Infections With Participation of Patients on MV

A Randomized, Double-blind, Placebo Controlled Clinical Trial to Study the Efficacy and Safety of the Drug Fluorothiazinone (Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation) in Prophylaxis of Nosocomial Bacterial Infections With Participation of Patients on Mechanical Ventilation

This study is designed to evaluate the clinical and antibacterial efficacy, safety and pharmacokinetics of the drug Fluorothiazinone compared to placebo to prevent nosocomial gram-negative bacterial infections with participation of patients on mechanical ventilation.

The main objectives of this study are:

• Evaluation of the clinical and antibacterial efficacy of the drug Fluorothiazinone in combination with standard measures for the prevention of nosocomial infections compared to placebo in combination with standard measures for the prevention of nosocomial infections for the prevention of nosocomial infections caused by bacterial gram-negative flora in patients on mechanical ventilation.
• Evaluation of the safety and tolerability of the drug Fluorothiazinone in patients on mechanical ventilation.
• Evaluation of the pharmacokinetics (in whole blood) of the drug Fluorothiazinone with a single daily dose of 2400 mg/day.

Researchers will compare results for the treatment and the placebo arms.

Study Overview

• Status: Recruiting
• Conditions: Gram-Negative Bacterial Infections; Bacteremia Caused by Gram-Negative Bacteria; Gram Negative Pneumonia
• Intervention / Treatment: Drug: Fluorothiazinone, tablets 300 mg at a dose of 2400 mg/day; Other: Placebo

• Study Type: Interventional
• Enrollment (Estimated): 234
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Nailya A. Zigangirova, Doctor of Biological Sciences; Phone Number: +7 (499) 193-30-01; Email: zigangirova@mail.ru

Study Locations

• Russian Federation
  • Moscow, Russian Federation, 119049
    • Recruiting
    • State Budgetary Healthcare Institution of Moscow City Clinical Hospital No. 1 named after N.I. Pirogov of the Moscow Department of Health (State Clinical Hospital No. 1 named after N.I. Pirogov)
    • Contact: Anastasia A. Anderzhanova; Phone Number: +79161937499; Email: Gkb1.clinpharm@gmail.com
  • Moscow, Russian Federation, 127015
    • Recruiting
    • City Clinical Hospital No. 24 of the Moscow City Department of Health
    • Contact: Sergey K. Zyryanov; Phone Number: +7 499 251-00-59; Email: zelena0566@mail.ru

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Patient's written consent to participate in the study in accordance with the current legislation or the decision of the board in case of absence of consciousness of the patient.
2. Patients are at least 18 years old, male and female.
3. Patients who are in the ICU (intensive care unit).

4. Patients with:

   4.1. Laboratory confirmed SARS-CoV-2 (Severe acute respiratory syndrome-related coronavirus-2) on screening (a patient's coronavirus infection can be confirmed either before admission to the hospital (for outpatient treatment) or when admitted to the hospital) by RT-PCR (reverse transcription polymerase chain reaction) AND severe community-acquired pneumonia in ICU with evidence of viral lung injury and symptoms of respiratory failure:

   • SpO2 (peripheral oxygen saturation) ≤ 93%;
   • Lung changes of 3rd- to 4th-degree according to CT (results of computed tomography), consistent with viral involvement; OR 4.2. Acute stroke; OR 4.3. Acute heart failure: Cardiogenic shock of any cause, pulmonary edema, or acute decompensated chronic heart failure.
5. Patients who have been on ALV (artificial lung ventilation) for no more than 12 hours.
6. Patients who are according to the investigator are at high risk to be transferred to ALV within 72 hours of the initiation of the therapy.
7. All women of childbearing age and men with partners of childbearing age should agree to use an effective contraceptive methods (e.g., implants, infections, combination oral contraceptives, intrauterine device, abstinence, vasectomy or vasectomy partner) during the entire study.

Exclusion Criteria:

1. The patient was not switched to ALV within 72 hours (3 days) after receiving the investigational drug.
2. People who have a bloodstream infection, identified during the screening.
3. A patient may terminate his/her participation in the study at any time for any reason and without any explanation.

3. The investigator may also decide to terminate the patient's participation at any time if it is required due to the patient's condition.

4. The sponsor or the regulator may also request the trial to be terminated early, either due to how the trial was conducted, or due to application safety data, or other reasons.

5. The main reasons why the patient may withdraw from the study are:

• Refusal of the patient to participate in the study;
• Development of an AE (adverse event) / SAE (serious adverse event) that prevents further study participation;
• The occurrence of concomitant somatic diseases / symptoms or exacerbation of chronic diseases not related to the investigational drug (at the discretion of the medical investigator).

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Triple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: Placebo arm	Other: Placebo; Placebo arm patients will receive placebo: 4 tablets twice a day for the first 2 days and;; 3 tablets twice a day and further (but no more than 14 days) until the occurrence of ventilator-associated pneumonia caused by gram-negative bacteria, confirmed clinically and microbiologically, OR the completion of the patient's participation in the study for other reasons. Tablets are taken 2 times a day 12 hours apart 30 minutes after meal, no more than 14 days.
Experimental: Treatment arm	Drug: Fluorothiazinone, tablets 300 mg at a dose of 2400 mg/day; Treatment arm patients will receive Fluorothiazinone, tablets 300 mg at a dose: 2400 mg/day (4 tablets twice a day) for the first 2 days and;; 1800 mg/day (3 tablets twice a day) from the third day and further (but no more than 14 days) until the occurrence of ventilator-associated pneumonia caused by gram-negative bacteria, confirmed clinically and microbiologically, OR the completion of the patient's participation in the study for other reasons. Tablets are taken 2 times a day 12 hours apart 30 minutes after meal, no more than 14 days.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
MV-associated pneumonia caused by gram-negative bacteria (72-120 hours from the moment of tracheal intubation and the start of the MV)	The proportion of patients in the study groups without clinically and microbiologically confirmed MV-associated pneumonia caused by gram-negative bacteria, which developed no earlier than 72 hours (3 days) and no later than 120 hours (5 days) from the moment of tracheal intubation and the start of the MV, in the absence of signs of pulmonary infection at the time of intubation.	Throughout the therapy period (14 days).

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Time from the beginning of the MV to the development of MV-associated pneumonia	The time from the beginning of the MV to the development of MV-associated pneumonia caused by gram-negative bacteria, confirmed clinically and microbiologically, in the study groups during the entire period of therapy.	Throughout the therapy period (14 days).
Time from the beginning of the MV to the development of a bloodstream infection	The time from the beginning of the MV to the development of a bloodstream infection caused by gram-negative bacteria, confirmed microbiologically in the study groups during the entire period of therapy.	Throughout the therapy period (14 days).
Time from the beginning of the MV to the development of urinary tract infection	The time from the beginning of the MV to the development of urinary tract infection caused by gram-negative bacteria, confirmed microbiologically in the study groups during the entire period of therapy.	Throughout the therapy period (14 days).
Proportion of patients who developed urinary tract infection	The proportion of patients who developed urinary tract infection caused by gram-negative bacteria, confirmed microbiologically, in the study groups during the entire period of reception of the investigative drug (IMP).	Throughout the therapy period (14 days).
Proportion of patients who did not develop MV-associated pneumonia	The proportion of patients who did not develop MV-associated pneumonia caused by gram-negative bacteria, confirmed clinically and microbiologically, in the study groups during the entire period of reception of the investigative drug (IMP).	Throughout the therapy period (14 days).
Proportion of patients who have gram-negative bacteria	The proportion of patients who have gram-negative bacteria isolated from the respiratory tract, with no clinical picture of pneumonia.	Throughout the therapy period (14 days).
Proportion of patients who developed a bloodstream infection (during the entire period of therapy)	The proportion of patients who developed a bloodstream infection caused by gram-negative microflora, confirmed microbiologically in the study groups during the entire period of therapy.	Throughout the therapy period (14 days).
Proportion of patients who developed a bloodstream infection (after the patient was transferred to the MV)	The proportion of patients who developed a bloodstream infection caused by gram-negative microflora, confirmed microbiologically in the study groups after the patient was transferred to the MV.	Throughout the therapy period (14 days).
Proportion of patients with septic complications	The proportion of patients with septic complications in the study groups during the entire period of therapy.	Throughout the therapy period (14 days).
The proportion of fatal outcomes	The proportion of fatal outcomes in the study groups during the entire period of therapy.	Throughout the therapy period (14 days).

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Comparative characteristics of colonization of the respiratory and urinary tracts	Comparative characteristics of colonization of the respiratory and urinary tracts by individual pathogens in patients on the MV.	Throughout the therapy period (14 days).
Comparative assessment of the condition on the SOFA scale	Comparative assessment of the condition on the Sequential Organ Failure Assessment (SOFA) scale. Comparative assessment of the condition on the SOFA scale throughout the study. Score ranges from 0 (best) to 24 (worst) points.	Throughout the therapy period (14 days).
Comparative assessment of the condition on the APACHE II scale	Comparative assessment of the condition on the Acute Physiology and Chronic Health Evaluation II (APACHE II) scale throughout the study. Calculates an integer score from 0 to 71 based on multiple measurements. Higher scores correspond to more severe disease and a higher risk of death.	Throughout the therapy period (14 days).

Collaborators and Investigators

• Sponsor: Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation

Publications and helpful links

Helpful Links

• Related Info

Study record dates

Study Major Dates

• Study Start (Actual): November 6, 2023
• Primary Completion (Estimated): December 31, 2025
• Study Completion (Estimated): December 31, 2025

Study Registration Dates

• First Submitted: November 9, 2023
• First Submitted That Met QC Criteria: November 14, 2023
• First Posted (Actual): November 18, 2023

Study Record Updates

• Last Update Posted (Actual): June 24, 2025
• Last Update Submitted That Met QC Criteria: June 18, 2025
• Last Verified: May 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Disease Attributes; Sepsis; Systemic Inflammatory Response Syndrome; Inflammation; Bacterial Infections and Mycoses; Bacteremia; Infections; Communicable Diseases; Bacterial Infections; Gram-Negative Bacterial Infections
• Other Study ID Numbers: 06-FT-2021, v. 3.0, 03.11.2022

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No