Clinical Trial of the Efficacy and Safety of Raphamin in Combined Treatment of Community-acquired Pneumonia

Multicenter, Double-blind, Placebo-controlled, Randomized, Parallel-group Clinical Trial to Evaluate the Efficacy and Safety of Raphamin in Combined Treatment of Community-acquired Pneumonia

Multicenter double-blind placebo-controlled randomized in parallel groups clinical trial.

Study Overview

• Status: Completed
• Conditions: Pneumonia; Community-acquired Pneumonia
• Intervention / Treatment: Drug: Placebo; Drug: Raphamin

Detailed Description

Design: a multicenter, double-blind, placebo-controlled, randomized in parallel-group trial.

The study enrolls male and female outpatients aged 18 to 65 years with typical symptoms of community-acquired pneumonia (CAP): axillary body temperature ≥38.00C, acute cough, shortness of breath (dyspnea), chest pain when breathing, fatigue, night sweats. Symptoms are associated with previous upper respiratory tract infection or acute bronchitis. The investigator assesses a prognosis and determines where the patient will receive treatment using the CRB-65 score which includes estimation of Confusion, Respiratory rate, Blood pressure, and Age (≥ 65 years) (min "0", max "4" points; only estimation "0" points is indication for outpatient treatment).

At the first visit (day 1), after signing the patient information sheet and informed consent form for participation in a clinical trial, the investigator collects complaints and medical history, conducts a physical examination and assessment of vital signs, and measures capillary blood oxygen saturation (SpO2), records comorbidities and concomitant therapies, collects blood samples for laboratory tests, and orders a dual-view chest X-ray or chest CT scan. If X-ray/CT shows no changes in the lungs or changes that are not typical for pneumonia, the patient is not included in the clinical trial. The investigator determines a therapeutic approach in compliance with the current standards.

At the first visit (day 1), patients are randomized to one of two treatment groups: patients in Group 1 receive Amoxicillin + Clavulanic acid (Amoxiclav) and Rafamine for 7 days; patients in Group 2 take Amoxiclav and Placebo for 7 days. All patients are provided with the drug Amoxiclav. In addition, all patients are provided with the antipyretic drug Paracetamol and a classic mercury-free thermometer to measure axillary temperature.

A second visit (3/4 days) is carried out 48-72 hours after the start of treatment to assess the effectiveness and safety of the initial course of antibiotic therapy. The investigator collects complaints, performs physical examination, and evaluates the vital signs and SpO2 level. If there is no response to initial antibiotic therapy, the decision about the therapeutic approach is made by the investigator. If hospitalization occurs, the patient ends participation in the study because he or she has reached the study endpoint.

If antibiotic therapy is effective, it is continued for 7 days. After 7 days of treatment, a third visit is carried out (day 8), at which the researcher collects the patient's complaints, conducts a physical examination and assessment of vital signs, measures SpO2 and prescribes a clinical blood test. If the patient meets the criteria for sufficiency of antibiotic therapy, the investigator stops prescribing the antibiotic.

If a positive response to the first course of antibiotic therapy is achieved, the patient continues to participate in the study. The patient is observed for 7 days. On day 15±1, the fourth visit is carried out, during which the researcher collects the patient's complaints, conducts a physical examination and assesses vital signs, measures SpO2 and prescribes a follow-up X-ray/CT scan. The patient returns the study drug and the investigator performs a compliance calculation. In total, patients are observed for 15 days.

The study uses an electronic patient diary (EPD) to record axillary temperature daily in the morning and evening. All temperature measurements during the study should be made with the same thermometer. The patient should bring the thermometer used for measurements to the health center visit. In addition, the patient should also use the EPD to record symptoms, if any, time of administration of the antipyretic dose, and any worsening of his/her condition (if applicable) to assess safety and record adverse events.

The investigator teaches the patient how to complete the diary at Visit 1. The EPD is available for completion throughout the patient's participation in the study.

An unscheduled visit may be made during the study if the patient's condition worsens or at the discretion of the investigator.

If clinical cure is not achieved by 15±1 days, the patient ends participation in the study because he or she has reached the study endpoint. The researcher determines the approach to further observation and treatment of the patient in accordance with current recommendations.

Subjects are permitted to take medications for concomitant medical conditions during the study, with the exception of medications listed in the Prohibited Concomitant Treatments section.

• Study Type: Interventional
• Enrollment (Actual): 370
• Phase: Phase 3

Contacts and Locations

Study Locations

• Russian Federation
  • Aramil, Russian Federation, 624002
    • Aramil City Hospital
  • Arkhangelsk, Russian Federation, 163000
    • Northern Medical Clinical Center named after N.A. Semashko Federal Medical and Biological Agency
  • Gatchina, Russian Federation, 188300
    • Gatchina Clinical Interdistrict Hospital
  • Ivanovo, Russian Federation, 153025
    • Ivanovo Clinical Hospital named after Kuvayevs
  • Izhevsk, Russian Federation, 426063
    • City Clinical Hospital # 9 of the Ministry of Health of the Udmurt Republic
  • Kaliningrad, Russian Federation, 236005
    • Central City Clinical Hospital
  • Kazan, Russian Federation, 420012
    • Kazan State Medical University
  • Kazan, Russian Federation, 420012
    • Kazan State Medical University/Department of Infectious Diseases
  • Krasnodar, Russian Federation, 350063
    • Kuban State Medical University/Department of Infectious Diseases and Phthisiopulmonology
  • Moscow, Russian Federation, 111123
    • Central Research Institute of Epidemiology
  • Moscow, Russian Federation, 119991
    • First Moscow State Medical University named after I.M. Sechenov
  • Moscow, Russian Federation, 129110
    • Moscow Regional Research Clinical Institute named after. M.F. Vladimirsky
  • Nizhny Novgorod, Russian Federation, 603093
    • Nizhny Novgorod Regional Clinical Hospital named after N.A. Semashko
  • Nizhny Novgorod, Russian Federation, 603155
    • LLC "Persona Group of Companies"
  • Penza, Russian Federation, 440067
    • Clinical Hospital # 4
  • Perm, Russian Federation, 614070
    • LLC "Professor's Clinic"
  • Petergof, Russian Federation, 198510
    • Nikolaevskaya Hospital
  • Pyatigorsk, Russian Federation, 357502
    • LLC "4D Ultrasound Clinic"
  • Rostov, Russian Federation, 152155
    • Rostov Central District Hospital
  • Saint Petersburg, Russian Federation, 194156
    • LLC "Energy of Health"
  • Saint Petersburg, Russian Federation, 199406
    • LLC "Meili"
  • Saint Petersburg, Russian Federation, 194356
    • LLC "Medical Clinic"
  • Saint Petersburg, Russian Federation, 199178
    • City Polyclinic # 4
  • Saint Petersburg, Russian Federation, 191036
    • St. Petersburg Research Institute of Phthisiopulmonology
  • Saint Petersburg, Russian Federation, 194354
    • LLC "Medical center "Reavita Med SPb"
  • Saint Petersburg, Russian Federation, 195427
    • City Polyclinic # 112
  • Saint Petersburg, Russian Federation, 196158
    • LLC "Zvezdnaya Clinic"
  • Saint Petersburg, Russian Federation, 199106
    • City Pokrovskaya Hospital
  • Samara, Russian Federation, 443001
    • Medical University "Reaviz"
  • Samara, Russian Federation, 443099
    • Samara State Medical University/Department of General and Clinical Microbiology, Immunology and Allergology
  • Smolensk, Russian Federation, 214019
    • Smolensk State Medical University
  • Stavropol, Russian Federation, 355000
    • LLC "Scientific Medical Center of General Therapy and Pharmacology"
  • Ufa, Russian Federation, 450008
    • Bashkir State Medical University/Department of Internal Medicine
  • Ulyanovsk, Russian Federation, 432017
    • Ulyanovsk Regional Clinical Hospital
  • Vladimir, Russian Federation, 600023
    • Regional Clinic Hospital
  • Voronezh, Russian Federation, 394066
    • Voronezh Regional Clinical Hospital # 1
  • Yaroslavl, Russian Federation, 150030
    • Clinical Hospital # 2
  • Yaroslavl, Russian Federation, 150040
    • LLC "Medical Center for Diagnostics and Prevention Plus"

Participation Criteria

Eligibility Criteria

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

Description

Inclusion Criteria:

1. Male and female patients aged 18-65 years.

2. The diagnosis of community-acquired pneumonia presupposes that the patient has focal infiltration of the lung tissue, confirmed by imaging (X-ray/CT), and the presence of at least two clinical symptoms:

   а) acute fever at the onset of the disease (axillary temperature ≥ 38.0°C); b) wet cough; c) physical signs (crepitus/wheezing, bronchial breathing sounds, local dullness to percussion); d) leukocytosis >10×10^9/L and/or shift of band neutrophils (>10%).

3. SpO2 ≥95% according to pulse oximetry.
4. Overall CRB-65 score "0" points.
5. Patients willing to use reliable methods of contraception during the study (men and women of reproductive potential).
6. Patients who have signed the patient information sheet and informed consent.

Exclusion Criteria:

1. Any indications for patient hospitalization.
2. Suspected infiltrative pulmonary tuberculosis.
3. Medical history of/suspected malignant neoplasm of any location, including primary lung cancer and metastases to the lung parenchyma.
4. Suspected pulmonary embolism and pulmonary infarction.
5. Medical history of chronic obstructive pulmonary disease, bronchial asthma, chronic respiratory failure.
6. Medical history of immune system diseases: systemic vasculitis, lupus pneumonitis, allergic bronchopulmonary aspergillosis, obliterating bronchiolitis, idiopathic pulmonary fibrosis, eosinophilic pneumonia, bronchocentric granulomatosis.
7. Chronic heart failure III or IV FC (according to the New York Heart Association classification, 1964).
8. Suspicion of drug-induced (toxic) pneumopathy, aspiration of foreign body, sarcoidosis, pulmonary alveolar proteinosis, lipoid pneumonia, rounded atelectasis.
9. Exacerbated or decompensated chronic diseases, including diabetes mellitus, affecting a patient's ability to participate in the clinical trial.
10. Prior diagnosis of immunodeficiency of any etiology.
11. Patients having unstable angina pectoris or myocardial infarction in the previous 6 months.
12. Prior history of chronic kidney disease (categories С3-5 А3).
13. Prior history of hepatic failure (Child-Pugh class C).
14. Any surgery within the previous 3 months.
15. Patients who received any medicine specified in the section "Prohibited concomitant treatment" within 3 months preceding the inclusion in this study or who require the use of medicines that are prohibited within this trial.
16. Malabsorption syndrome, including congenital or acquired lactase deficiency (or any other disaccharidase deficiency) and galactosemia.
17. Hypersensitivity to any of the components of medications used in the treatment.
18. Pregnancy, breast-feeding; childbirth less than 3 months prior to the inclusion in the trial, unwillingness to use contraceptive methods during the trial.
19. Patients who, from the investigator's point of view, will not comply with study monitoring requirements or with study drug administration requirements.
20. Prior history of a psychiatric disorder, alcoholism or drug abuse, which in the opinion of the investigator may compromise compliance with the study protocol.
21. Participation in other clinical studies within 3 month prior to enrollment in the study.
22. Patients who are related to any of the on-site research personnel directly involved in the conduct of the trial or are an immediate relative of the study investigator. 'Immediate relative' means husband, wife, parents, children, or siblings, regardless of whether they are natural or adopted.
23. Patients who work for OOO "NPF "MATERIA MEDICA HOLDING" (i.e. the company's employees, temporary contract employees, persons designated officials responsible for carrying out the research or any immediate relatives of the aforementioned).

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Raphamin; Oral administration, without food. The tablet should be held in the mouth until complete dissolution. On the first day 8 tablets are administered using the following scheme: 1 tablet every 30 minutes in the first 2 hours (5 tablets in total within 2 hours), followed by three more tablets at regular intervals during the rest of the day. From day 2 onwards, 1 tablet taken 3 times daily. The treatment period is 7 days.	Drug: Raphamin; Tablet for oral use.; Other Names: MMH-407
Placebo Comparator: Placebo; Oral administration, without food. The tablet should be held in the mouth until complete dissolution. Placebo is administered according to the Raphamin regimen for 7 days.	Drug: Placebo; Tablet for oral use.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Percentage of patients with clinical cure at the test of cure (TOC) visit	Percentage of patients with clinical cure at the TOC visit (on day 8 after randomization based on the physician's assessment of clinical symptoms).	On 8 days

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Average duration of antibacterial therapy	Average duration of antibacterial therapy in two groups	15 days

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Proportions of patients with a positive response to the initial course of antibiotic therapy after 48-72 hours	Proportion of patients with a positive response to the initial course of antibiotic therapy after 48-72 hours in two groups. The main criteria for the effectiveness of the starting regimen of antibacterial therapy after 48-72 hours: a decrease in temperature (below 38.0C), a decrease in the severity of intoxication syndrome and the main clinical symptoms of pneumonia, primarily shortness of breath.	3 days
Proportion of patients who discontinue antibiotic therapy after 7 days of treatment (based on physician assessment of clinical symptoms).	Proportions of patients who discontinue antibiotic therapy after 7 days of treatment in two groups (based on physician assessment of clinical symptoms). Criteria for the sufficiency of antibacterial therapy (all of the following must be present): persistent decrease in body temperature ≤37.2ºС for at least 48 hours;; absence of intoxication syndrome;; respiratory rate <20/min (in patients without chronic respiratory failure);; absence of purulent sputum (except for patients with its constant secretion);; the number of leukocytes in the blood <10×109/l, neutrophils <80%, young forms <6%.	7 days
Proportion of patients who required a change in antibiotic 48-72 hours after initiation of therapy.	Proportions of patients who required a change in antibiotic 48-72 hours after initiation of therapy in two groups due to treatment failure. The main criteria for the treatment failure: temperature higher than 38.0C), presence of intoxication syndrome and the main clinical symptoms of pneumonia, shortness of breath.	3 days
Time until a persistent decrease in body temperature ≤37.2ºС (according to the patient's diary).	Time until a persistent decrease in body temperature ≤37.2ºС (according to the patient's diary) in two groups.	15 days
Proportion of patients who required a second course of antibiotic therapy.	Proportions of patients who required a second course of antibiotic therapy in two groups due to treatment failure. The main criteria for the treatment failure: temperature higher than 38.0C), presence of intoxication syndrome and the main clinical symptoms of pneumonia, shortness of breath.	15 days
Proportion of patients who required hospitalization during 15 days of follow-up.	Proportions of patients who required hospitalization during 15 days of follow-up due to treatment failure. The main criteria for the treatment failure: temperature higher than 38.0C), presence of intoxication syndrome and the main clinical symptoms of pneumonia, shortness of breath.	15 days
Number of antipyretic drug doses taken during 7 days of the initial course of antibacterial therapy (per patient).	Average number of antipyretic drug doses taken during 7 days of the initial course of antibacterial therapy (per patient) in two groups according to the patient's diary.	7 days
Proportion of patients without infiltration on x-ray/CT 14 days after randomization.	Proportions of patients without infiltration on X-ray/CT on 14th day after randomization in two groups according to medical records.	14 days
The Presence of Adverse Events (AEs).	The presence and nature of adverse events, their intensity (severity), causal relationship to the study drug, outcome. Based on medical records.	15 days
Changes in Vital Signs (Blood Pressure measured in mm Hg)	Changes in Blood Pressure at the end of treatment. Based on medical records.	15 days
Changes in Vital Signs (Pulse Rate (Heart Rate) measured in beats per minute)	Changes in Heart Rate at the end of treatment. Based on medical records.	15 days
Changes in Vital Signs (Respiratory Rate (Breathing Rate) measured in breaths per minute)	Changes in Respiratory Rate at the end of treatment. Based on medical records.	15 days

Collaborators and Investigators

• Sponsor: Materia Medica Holding

Study record dates

Study Major Dates

• Study Start (Actual): December 1, 2023
• Primary Completion (Actual): March 19, 2025
• Study Completion (Actual): March 19, 2025

Study Registration Dates

• First Submitted: February 9, 2024
• First Submitted That Met QC Criteria: February 9, 2024
• First Posted (Actual): February 16, 2024

Study Record Updates

• Last Update Posted (Actual): April 4, 2025
• Last Update Submitted That Met QC Criteria: April 3, 2025
• Last Verified: April 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Respiratory Tract Infections; Infections; Respiratory Tract Diseases; Lung Diseases; Pneumonia
• Other Study ID Numbers: MMH-407-009

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