Clinical trial Recruiting at 22 sites Phase 3 Interventional Ages 6 Months to 3

Rengalin liquid for dry cough in children aged 6 months to 3 years

Official title: Multicenter, Double-blind, Placebo-controlled, Randomized, Parallel-group Clinical Trial of the Efficacy and Safety of Rengalin in the Treatment of Cough in Acute Viral Upper Respiratory Tract Infections Tract Infections in Children During the Epidemic Growth of Influenza and ARVI

Run by Materia Medica Holding · NCT07171099 · Data updated 2026-11-12

This will test whether Rengalin liquid reduces dry cough in children 6 months to 3 years old with acute viral upper respiratory infections.

More Cough trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages6 Months to 3 Years
SexAll
Enrollment264 (estimated)
SponsorMateria Medica Holding
Industry-sponsored
Locations30 sites (Gatchina and 29 other locations)
StatusRecruiting
StartedOctober 3, 2025
Main results expectedDecember 31, 2028
Study endsDecember 31, 2028
Registry record updatedFebruary 13, 2026
Trial IDNCT07171099 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are outpatients aged over 6 months and under 3 years with clinically diagnosed acute viral upper respiratory infection, a dry cough present 24–72 hours, and a total cough severity score of 6 or more, whose parent or guardian can attend one of the study sites and provide consent.

Probably not a fit

Children with productive cough, lower respiratory tract inflammation, chronic ENT conditions listed in the exclusions, gastroesophageal reflux, or those outside the specified age or cough-duration windows are unlikely to benefit from this intervention in this trial.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a multicenter, double-blind, randomized, placebo-controlled, parallel-group phase 3 trial of Rengalin in a liquid form given orally as 5 ml three times daily for 7 days. The trial enrolls outpatients aged 6 months to under 3 years who have a dry (non-productive) cough of 24–72 hours' duration and a total cough severity score of 6 or more. At baseline parents complete the cough severity score, vital signs and physical exam are recorded, and at least 50% of participants will have basic blood and urine tests; safety and symptom outcomes are compared between Rengalin and placebo. The investigators will monitor cough severity and adverse events over the treatment period to determine efficacy and tolerability.

Why it matters

Potential benefit: If successful, Rengalin could shorten the duration or reduce the severity of dry cough in very young children, offering a tolerated symptomatic treatment option.

How similar studies have gone: Some smaller or non-randomized reports and post-marketing experience from the manufacturer’s region have suggested symptomatic benefit from Rengalin, but randomized placebo-controlled phase 3 evidence in this pediatric age group is limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Outpatients of both genders aged over 6 months and under 3 years.
2. Clinically confirmed diagnosis of acute viral upper respiratory tract infections (acute pharyngitis, nasopharyngitis, tonsillitis, laryngitis, laryngotracheitis, tracheitis, acute viral respiratory infection of multiple and unspecified localization) during the epidemic growth of influenza and ARVI.
3. Dry (non-productive) cough lasting at least 24 hours but not more than 72 hours.
4. Total (day and night) cough severity score of 6 or more.
5. Availability of a patient information sheet and an informed consent form for participation in the clinical trial signed by one of the patient's parents/adoptive parents.

Exclusion Criteria:

1. Presence of the following diseases at the time of inclusion in the clinical trial:

   1.1 Inflammatory processes in the lower respiratory tract. 1.2 Grade III adenoid hypertrophy. 1.3 Chronic adenoiditis. 1.4 Postnasal drip syndrome. 1.5 Gastroesophageal reflux. 1.6 Bronchial asthma. 1.7 Cystic fibrosis. 1.8 Primary ciliary dyskinesia 1.9 Bronchopulmonary dysplasia 1.10 Malformations of the respiratory and ENT organs 1.11 Other chronic lung diseases. 1.12 Primary/secondary immunodeficiency. 1.13 Oncological disease of any localization.
2. Suspected bacterial infection of any localization, including pneumonia, sinusitis, otitis media.
3. Allergic rhinitis.
4. Bronchial obstruction syndrome.
5. Acute obstructive laryngitis \[croup\] and epiglottitis.
6. Congenital heart defects with hypervolemia in pulmonary circulation.
7. Acute respiratory failure.
8. Inflammatory, degenerative, demyelinating diseases of the central nervous system, polyneuropathies, epilepsy.
9. Exacerbation or decompensation of chronic diseases affecting the patient's ability to participate in a clinical trial.
10. Presence of allergy/hypersensitivity to any components of the medicines used in the treatment.
11. Taking medications listed in the section "Prohibited Concomitant Therapy" within 4 weeks prior to inclusion in the study.
12. Patients whose parents/adoptive parents, from the investigator's point of view, will not comply with observation requirements during the study or with the administration of study drugs.
13. Participation in other clinical trials within 3 months prior to inclusion in this trial.
14. A patient's parent/adoptive parent is related to on-site research personnel directly involved in the trial, or is the immediate family member of the investigator. 'Immediate family members' mean spouses, parents, children, or siblings, whether related or adopted.
15. The patient's parent/adoptive parent is employed by OOO "NPF "MATERIA MEDICA HOLDING", i.e., is an employee of the company, a temporary contract employee, or a designated official responsible for conducting the trial or their immediate family member.

Where it's running

  • Gatchina Clinical Interdistrict Hospital
    Gatchina, Russia
    Recruiting
  • Llc "Medlight"
    Kazan', Russia
    Recruiting
  • Specialized Clinical Infectious Diseases Hospital
    Krasnodar, Russia
    Recruiting
  • Central Research Institute of Epidemiology
    Moscow, Russia
    Recruiting
  • First Moscow State Medical University named after I.M. Sechenov
    Moscow, Russia
    Recruiting
  • City Children's Clinical Polyclinic # 5
    Perm, Russia
    Recruiting
Show 24 more locations
  • LLC "Professor's Clinic"
    Perm, Russia
    Recruiting
  • Clinical and diagnostic center "Health" in Rostov-on-Don
    Rostov-on-Don, Russia
    Recruiting
  • Rostov State Medical University/Department of Childhood Diseases # 3
    Rostov-on-Don, Russia
    Recruiting
  • Children's City Polyclinic # 44
    Saint Petersburg, Russia
    Recruiting
  • LLC "Zvezdnaya Clinic"
    Saint Petersburg, Russia
    Recruiting
  • Children's City Polyclinic # 35
    Saint Petersburg, Russia
    Recruiting
  • Federal Scientific and Clinical Center for Infectious Diseases of the Federal Medical and Biological Agency
    Saint Petersburg, Russia
    Recruiting
  • City Polyclinic # 3
    Saint Petersburg, Russia
    Recruiting
  • City Polyclinic # 4
    Saint Petersburg, Russia
    Recruiting
  • Samara Regional Children's Clinical Hospital named after N.N. Ivanova
    Samara, Russia
    Recruiting
  • National Research Mordovian State University named after N.P. Ogarev/Department of Pediatrics
    Saransk, Russia
    Recruiting
  • Bashkir State Medical University/Department of Outpatient and Emergency Pediatrics
    Ufa, Russia
    Recruiting
  • Yaroslavl State Medical University/Department of Pediatrics, INPO
    Yaroslavl, Russia
    Recruiting
  • Clinical Hospital # 2
    Yaroslavl, Russia
    Recruiting
  • Children's City Clinical Hospital # 11
    Yekaterinburg, Russia
    Recruiting
  • Ural State Medical University/Department of Infectious Diseases, Phthisiology and Pulmonology
    Yekaterinburg, Russia
    Recruiting
  • Llc "Diagnosis and Vaccines"
    Moscow, Russia
    Withdrawn
  • LLC "Health Laboratory"
    Mytishchi, Russia
    Not yet recruiting
  • Omsk State Medical University/Department of Hospital Pediatrics with a Course of Continuing Professional Education
    Omsk, Russia
    Not yet recruiting
  • LLC "Clinic EuroDon"
    Rostov-on-Don, Russia
    Not yet recruiting
  • yazan State Medical University named after Academician I.P. Pavlov/Department of Childhood Diseases with a course in hospital pediatrics
    Ryazan, Russia
    Not yet recruiting
  • Saint Petersburg State Pediatric University/Department of Infectious Diseases of Adults and Epidemiology
    Saint Petersburg, Russia
    Not yet recruiting
  • Samara State Medical University/Department of Hospital Pediatrics
    Samara, Russia
    Withdrawn
  • Saratov City Children's Clinical Hospital
    Saratov, Russia
    Withdrawn

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.