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PREterm Infants With Bronchial Obstruction - Prospective Study of Efficacy and Safety of Inhaled Tiotropium (PRETIO)

15 september 2026 bijgewerkt door: Jana Tuková, General University Hospital, Prague

A Prospective, Randomized, Controlled, Crossover Phase IV Study to Evaluate the Efficacy and Safety of Inhaled Tiotropium in Preterm Infants With Bronchial Obstruction Compared to Standard Treatment

The purpose of this clinical trial is to evaluate the efficacy and safety of inhaled tiotropium bromide (Spiriva Respimat) in preterm-born children and adolescents suffering from chronic bronchial obstruction.

Preterm infants often experience persistent narrowing of the airways, which leads to shortness of breath, chronic respiratory symptoms, and reduced exercise tolerance.

Tiotropium is a long-acting muscarinic antagonist (LAMA) that helps dilate the airways and facilitate breathing. While this medication is already approved for pediatric patients aged 6 years and older with severe asthma, its efficacy and safety have not yet been validated in the specific population of preterm infants with bronchial obstruction. This study aims to fill this clinical knowledge gap.

This is a non-commercial, monocentric, prospective, randomized, open-label, phase IV study utilizing a 2x2 crossover design. The trial will enroll 50 participants aged 6 to 18 years. Each participant will undergo two distinct 3-month phases: a treatment period with daily inhaled tiotropium (5 µg once daily) and a control observation period without long-term anticholinergic therapy. The sequence of these periods will be randomly assigned to each participant. The primary objective is to demonstrate lung function improvement by evaluating the change in forced expiratory volume in 1 second (FEV1) expressed in liters and Forced Vital Capacity (FVC) expressed in liters between the treatment and control periods. No blood samples or invasive procedures are required for this study.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

This clinical trial is designed as an investigator-initiated, academic, phase IV, randomized, open-label, 2x2 crossover study to evaluate the response to inhaled tiotropium bromide in children and adolescents born prematurely who suffer from chronic bronchial obstruction.

The study consists of two different sequences:

  • Sequence A (Treatment first): Participants receive inhaled tiotropium (5 µg once daily via Spiriva Respimat) for 3 months, followed by a 4-week washout period, and subsequently undergo a 3-month control observation period under standard treatment.
  • Sequence B (Control first): Participants start with a 3-month control observation period under standard treatment, followed immediately (without a washout period) by a 3-month treatment period with daily inhaled tiotropium.

Clinical and spirometric assessments (including Forced Expiratory Volume in 1 second in liters - FEV₁, Forced Vital Capacity in liters - FVC, Peak Expiratory Flow in liters per second - PEF, Forced Expiratory Flow between 25% and 75% of FVC in liters per second - FEF₂₅-₇₅ parameters) will be performed at baseline, at the crossover point (end of the first period), and at the end of the study (end of the second period). Participants or their parents will maintain daily diaries to log respiratory symptoms, rescue medication - short-acting beta₂-agonist (SABA) use, and potential acute exacerbations throughout the trial.

Studietype

Ingrijpend

Inschrijving (Geschat)

50

Fase

  • Fase 4

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Contact Back-up

Studie Locaties

  • Tsjechië
      • Prague, Tsjechië, 128 08
        • General University Hospital in Prague, Department of Paediatrics and Inherited Metabolic Disorders (KPDPM)

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Kind
  • Volwassen

Accepteert gezonde vrijwilligers

Nee

Beschrijving

Inclusion Criteria:

  • Age between 6 and 18 years.
  • History of preterm birth (defined as delivery at < 37 gestational weeks).
  • Spirometrically proven bronchial obstruction, defined as a z-score of FEV1 and/or >= 2 other parameters - Forced Vital Capacity (FVC; liters [L]), Peak Expiratory Flow (PEF; liters per second [L/s]), and Forced Expiratory Flow between 25% and 75% of Forced Vital Capacity (FEF25-75; liters per second [L/s]).) below -1.65 SD.
  • Positive bronchodilatation test, defined as an increase in FEV₁ or FVC of more than 10% of the corresponding GLI-predicted value following administration of ipratropium bromide. Bronchodilator responsiveness will be calculated separately for FEV₁ and FVC as:

[(post-bronchodilator value - pre-bronchodilator value) / predicted value] × 100.

FEV₁ and FVC will be measured in litres (L) after ipratropium administration.

  • Acceptable spirometry performance in accordance with American Thoracic Society/European Respiratory Society (ATS/ERS) 2019 standards.
  • No long-term inhalation therapy (such as a long-acting beta₂-agonist (LABA) or a combination of an inhaled corticosteroid and a long-acting beta₂-agonist (ICS/LABA)) within the last month prior to study enrollment.

Exclusion Criteria:

  • Other chronic respiratory diseases (e.g., asthma, cystic fibrosis).
  • Anatomical abnormalities of the respiratory tract or presence of glaucoma.
  • Congenital malformations of the uropoetic tract or cardiac arrhythmias/congenital heart defects.
  • Concomitant use of anticholinergic medications for enuresis nocturna.
  • Pregnancy (mandatory urine screening required for all female participants aged 13 years and older).
  • Insufficient cooperation or inability to properly perform spirometry maneuvers.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Crossover-opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Sequence A: Tiotropium first
Participants in this sequence receive inhaled tiotropium bromide (5 µg once daily via Spiriva Respimat) for 3 months, followed by a 4-week washout period, and then undergo a 3-month control observation period with standard treatment.
Geneesmiddel: tiotropium bromide (Spiriva Respimat)
Inhaled tiotropium bromide administered via Spiriva Respimat inhaler. Dose: 5 µg (2 actuations of 2.5 µg) once daily for a total duration of 12 weeks.
Experimenteel: Sequence B: Control first
Participants in this sequence begin with a 3-month control observation period under standard treatment (no long-term anticholinergic therapy), immediately followed by a 3-month treatment period with daily inhaled tiotropium (5 µg once daily).
Geneesmiddel: tiotropium bromide (Spiriva Respimat)
Inhaled tiotropium bromide administered via Spiriva Respimat inhaler. Dose: 5 µg (2 actuations of 2.5 µg) once daily for a total duration of 12 weeks.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Absolute change from Baseline in Forced Expiratory Volume in 1 Second (FEV1) expressed in liters (L)
Tijdsspanne: At the end of the 3-month treatment period and at the end of the 3-month control period (specifically at Week 12 and Week 28 for Sequence A, or at Week 12 and Week 24 for Sequence B)

The outcome will be the within-participant difference in forced expiratory volume in 1 second (FEV₁), expressed in litres (L) and Forced Vital Capacity in liters - FVC, between the end of the 3-month tiotropium treatment period and the end of the 3-month control observation period. FEV₁ and FVC will also be expressed as a z-score and percentage of the predicted value calculated using the applicable Global Lung Function Initiative (GLI) reference equations. The treatment effect will be calculated as:

FEV₁ after the tiotropium treatment period (L) - FEV₁ after the control observation period (L).
At the end of the 3-month treatment period and at the end of the 3-month control period (specifically at Week 12 and Week 28 for Sequence A, or at Week 12 and Week 24 for Sequence B)

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change from Baseline in Secondary Spirometric Parameters (FVC expressed in liters [L], PEF in liters per second [L/s], and MEF25-75 in liters per second [L/s])
Tijdsspanne: At the end of the 3-month treatment period and at the end of the 3-month control period (specifically at Week 12 and Week 28 for Sequence A, or at Week 12 and Week 24 for Sequence B)
The absolute changes in Forced Vital Capacity (FVC, expressed in liters [L]), Peak Expiratory Flow (PEF, expressed in liters per second [L/s],), and Forced Expiratory Flow at 25%, 50%, and 75% of FVC (FEF25-75, expressed in liters per second [L/s],) evaluated between the end of the 3-month tiotropium treatment period and the end of the 3-month control observation period.
At the end of the 3-month treatment period and at the end of the 3-month control period (specifically at Week 12 and Week 28 for Sequence A, or at Week 12 and Week 24 for Sequence B)
Frequency of Acute Respiratory Exacerbations and Rescue Medication Use
Tijdsspanne: Continuously throughout both 3-month periods (treatment and control) and the 4-week washout phase, evaluated over a total span of up to 7 months per participant.
The total number of acute respiratory exacerbations and the frequency of rescue medication (Short-acting Beta-2 Agonist - SABA) usage tracked via daily patient/parent diaries during the 3-month tiotropium treatment period compared to the 3-month control observation period.
Continuously throughout both 3-month periods (treatment and control) and the 4-week washout phase, evaluated over a total span of up to 7 months per participant.

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

General University Hospital, Prague

Onderzoekers

  • Hoofdonderzoeker: Jana Tuková, MUDr., Ph.D., General University Hospital, Prague

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

1 november 2026

Primaire voltooiing (Geschat)

1 mei 2029

Studie voltooiing (Geschat)

1 augustus 2029

Studieregistratiedata

Eerst ingediend

20 juli 2026

Eerst ingediend dat voldeed aan de QC-criteria

15 september 2026

Eerst geplaatst (Werkelijk)

18 september 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

18 september 2026

Laatste update ingediend die voldeed aan QC-criteria

15 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • PRETIO-2026
  • 2026-525773-39-00 (Ctis)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Beschrijving IPD-plan

Individual participant data (IPD) will not be shared to protect patient privacy, as this study evaluates a vulnerable pediatric population and is subject to strict GDPR and institutional data protection regulations.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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