A Phase 4 interventional study of Elixirium thymi compositum (FoNo VIII.) and Elixirium thymi compositum (FoNo VIII.) placebo in Acute Bronchitis, sponsored by Semmelweis University. Enrolling by invitation at 1 site in Hungary. Open to participants aged 6 Years to 17 Years. Per ClinicalTrials.gov, last updated 2025-06-26.
Sponsored by Semmelweis University · Phase 4, Interventional, and Treatment
The aim of this study is to evaluate the efficacy and safety of Elixirium thymi compositum (Formulae Normales (FoNo) VIII.) compared to a placebo in children between 6 and 17 years old to treat their acute bronchitis. The main question it aims to answer is: Is Elixirium thymi compositum (FoNo VIII.) safe and effective in the treatment of acute bronchitis compared to placebo?
Acute bronchitis is a common disease caused mainly by viral infections. Although there is a standard symptomatic therapy for it, antibiotics are often prescribed, which contributes to an increase in antibiotic resistance. Elixirium thymi compositum (FoNo VIII.) might be an alternative therapeutic option.
The aim is to establish the role of this product by evaluating its clinical efficacy and safety, meanwhile reducing the misuse of antibiotics in treating this condition.
This is a randomized, controlled, double-blinded, two-arm multicenter phase 4 trial. Eligible patients will be pediatric individuals between 6 and 17 years old diagnosed with acute bronchitis. The trial will enroll at least 56 eligible participants with a Total Bronchitis Severity Score (BSS) ranging from 5 to 12 points. Participants will be assigned randomly in a 1:1 ratio to receive either Elixirium thymi compositum at an age-dependent dosage (18-30 ml daily) for 5 days or a placebo with the same concentration and duration.
The trial's primary endpoint is the assessment of symptom improvement in acute bronchitis, as indicated by changes in the BSS score on Day 7. Secondary endpoints include evaluating use of concomitant medications and dietary supplements, safety and tolerability through reported adverse events, and the necessity of antibiotic usage. These secondary endpoints will provide deeper insights into the differences between the treatment and placebo groups. The primary and secondary endpoints will be monitored throughout a follow-up period of 7 days.
156 studies on the registry are indexed under Bronchitis; 21 are open to participants now.
This study's planned enrollment of 56 is below the median of 185 across 105 interventional studies indexed under Bronchitis.
Browse Bronchitis studies →Semmelweis University is the lead sponsor of 140 studies on the registry; 56 are open to participants now.
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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.
Exclusion Criteria:
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.
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.
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.
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
COPD
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
For 6-9 years old patients, 6 ml oral solution three times a day for 5 days. For 9-15 years old patients, 8 ml oral solution three times a day for 5 days. For 15-17 years old patients, 10 ml oral solution three times a day for 5 days.
Combination Product: Elixirium thymi compositum (FoNo VIII.)
A placebo identical in appearance (color) and taste to the investigational product, without the active ingredient (thyme tincture). For 6-9 years old patients, 6 ml oral solution three times a day for 5 days. For 9-15 years old patients, 8 ml oral solution three times a day for 5 days. For 15-17 years old patients, 10 ml oral solution three times a day for 5 days.
Combination Product: Elixirium thymi compositum (FoNo VIII.) placebo
During the study, the dosage is for children and adolescents as follows: 6 ml three times a day for 6-9 years, 8 ml three times a day for 9-15 years, and 10 ml three times a day for 15-17 years.
During the study, the dosage is for children and adolescents as follows: 6 ml three times a day for 6-9 years, 8 ml three times a day for 9-15 years, and 10 ml three times a day for 15-17 years.
Bronchitis Severity Score
The Bronchitis Severity Scale (BSS) is a tool that assesses the five most important symptoms of acute bronchitis: cough, sputum production, wheezing, chest pain on coughing, and dyspnea. The assessment is based on the examiner's clinical judgment and patient feedback. The examiner rates each parameter of the BSS on a 5-point verbal scale from 0 to 4 (0: absent; 1: mild; 2: moderate; 3: severe; 4: very severe). The total BSS score is the sum of the ratings of the five symptoms, with a maximum score of 20.
Time frame: From enrollment to the end of study at 7 days, measured on Day 0, Day 3 and Day 7.
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]
Any adverse events and concomitant medications during the 7-day period.
Time frame: From enrollment to the end of study at 7 days.
Quality of life in acute bronchitis
Quality of life in patients with acute bronchitis was assessed using the Quality of Life Questionnaire, which measures the physical, psychological, and social impact of symptoms during illness. Each question is scored from 1 (absent symptom) to 5 (very severe symptom). Domain scores are calculated as the average of item scores within each domain (Physical: 6 items, Psychological: 7 items, Social: 5 items), resulting in a range of 1 to 5 per domain. The total score, obtained by summing the three domain scores, ranges from 3 (best possible quality of life) to 15 (worst possible quality of life).
Time frame: From enrollment to the end of study at 7 days.
Plan to share: No — There is not a plan to make individual participant data (IPD) available for this study. The informed consent form, in compliance with the EU General Data Protection Regulation (GDPR) and relevant Hungarian laws, specifically informs participants that their data will be handled confidentially, stored anonymously, and presented only in aggregate, anonymized form in any resulting publications. The consent does not include permission for broader sharing of individual-level data outside the study team or approved data processors.
Start is estimated for Jul 2025; primary completion for Jun 2027, 23 months later.
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