Cystic Fibrosis
Conditions
Keywords
Cystic fibrosis, tobramycin,nebulizer, PK
Brief summary
The purpose of this study is to assess pharmacokinetic and safety comparability of Bramitob® when administered for inhalation by using PARI eFlow® rapid electronic nebulizer vs PARI LC® PLUS nebulizer in Cystic Fibrosis Patients infected with Pseudomonas Aeruginosa
Interventions
(tobramycin 300mg /4mL) solution administered by inhalation twice daily for 28 days
(tobramycin 300mg /4mL) solution administered by inhalation twice daily for 28 days
Sponsors
Study design
Eligibility
Inclusion criteria
Main inclusion Criteria: * Patients of either sex aged ≥ 18 years; * Clinical diagnosis of cystic fibrosis (patients registered in the National Registry of cystic fibrosis or other documents, if applicable, depending on country legislation); * Positive response (sweat chloride concentration ≥ 60 mmol/l) in the standard sweat test documented in the clinical records or sweat chloride concentration ≥ 40 mmol/l and at least two gene mutations consistent with CF documented in the clinical records; * Chronic colonization of Pseudomonas aeruginosa * FEV1 ≥ 35% of the predicted normal value calculated according to the recommendation of the Official Statement of the European Respiratory Society and American Thoracic Society Main
Exclusion criteria
* Evidence of impaired renal function (serum creatinine level ≥ 1.5 mg/dl); * Evidence of impaired auditory function (auditory threshold in either ear above 20 dB at frequencies between 250 and 8000Hz); * Sputum culture containing Burkholderia cepacia; * Received loop diuretics within 7 days before study drug administration;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Plasma tobramycin pharmacokinetic parameters (Cmax and AUC0-t) after twice daily inhalation of Bramitob® using PARI eFlow® nebulizer vs PARI LC® PLUS nebulizer | on day 28 |
Secondary
| Measure | Time frame |
|---|---|
| Sputum tobramycin pharmacokinetic parameters (Cmax, tmax and AUC0-t) after inhalation of Bramitob® using PARI eFlow® nebulizer vs PARI LC® PLUS nebulizer | on day 1 and on day 28 |
| Accumulation of tobramycin in plasma and sputum after repeated doses calculated as the ratio: AUC0-t DAY 28 / AUC0-t DAY 1 and Cmax DAY 28 / Cmax DAY 1 | day 1 - day 28 |
| Plasma tobramycin pharmacokinetic parameters (Cmax, tmax and AUC0-t) after inhalation of Bramitob® using PARI eFlow® nebulizer vs PARI LC® PLUS nebulizer | on day 1 |
| Number of patients with minimum plasma tobramycin levels Cmin > 2mcg/mL and maximum plasma tobramycin levels Cmax > 12 mcg/mL | on day 28 |
| Time necessary for the nebulization of the dose | on day 1 and on day 28 |
| Safety assessed by adverse events, adverse drug reactions, incidence of bronchospasm, laboratory parameters, physical examination, body weight, vital signs results | day1-day28 |
Countries
Czechia, Moldova, Slovakia