Low-dose Theophylline as Anti-inflammatory Enhancer in Severe Chronic Obstructive Pulmonary Disease

Study Overview
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Brief Summary
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The main objective of the study is to determine the effects of low-dose oral theophylline added to combination treatment with long-acting β-agonist (LABA) and inhaled corticosteroid (ICS) in patients with severe Chronic Obstructive Pulmonary Disease (COPD) on the rate of exacerbations defined as increase of symptoms that requires a change of medication (antibiotics and/or systemic glucocorticoid) or hospitalisation. DESIGN: Phase III multicenter, randomized, placebo-controlled, double blind, parallel, prospective study. Patient will be recruited during an hospitalisation due to COPD exacerbation and randomised at the time of discharge to receive theophylline 100 mg or placebo on top of combination therapy with inhaled corticosteroids and long-acting beta agonist. The rate of exacerbations will be determined every three months up to one year follow-up. Cl inic visits: every 3 months (total number of clinic visits = 4). In each of them, the following information will be obtained: Number/severity of exacerbations or hospitalisation since last clinic visit Compliance and side effects Blood sample Plasma levels of theophylline Sputum (induced) MMRC SGRQ Forced spirometry + inspiratory capacity - At the beginning and at the end of the study 6MWT BMI BODE

Official Title
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Multicenter 52 Weeks Double Blind Placebo-controlled Trial for the Assessment of Theophylline on Top of Combination Therapy in Severe COPD

Conditions
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Chronic Obstructive Pulmonary Disease

Intervention / Treatment
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* Drug: theophylline
* Other: placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Participant is willing and able to give informed consent for participation in the study. Ability to understand study procedures and to comply with them for the entire length of the study. Any gender. No contraception is required neither pregnancy expected in the range of age Age > 45 years Smoking history > 10 pack-years (current or ex-smokers) Clinical diagnosis of COPD Presence of severe airflow obstruction on forced spirometry (FEV1/FVC < 0.7 and post-BD FEV1 < 50% of reference value) staged as GOLD III or IV Diagnosis of COPD exacerbation on discharge. Exclusion Criteria: Presence or history of other chronic respiratory diseases (asthma, bronchiectasis, TB lesions) Cancer Heart failure Pregnancy, or risk of pregnancy Other inflammatory diseases Previous treatment with theophylline For drug studies: allergy/sensitivity to study drugs or their ingredients. Current drug or alcohol use or dependence that, in the opinion of the site investigator, would interfere with adherence to study requirements. Inability or unwillingness of individual or legal guardian/representative to give written informed consent.

Ages Eligible for Study
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Minimum Age: 45 Years
Maximum Age: 90 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intervention<br>Inhaled corticosteroids and long-acting beta agonist + theophylline (Slophylline capsules 100 mg/Theo-dur Retard 100 mg b.i.d.) | Drug: theophylline<br>* theophylline 100 mg, twice at day<br>|
| Placebo Comparator: Control<br>inhaled corticosteroids and long-acting beta agonist + Placebo | Other: placebo<br>* Placebo<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Rate of exacerbations | Rate of exacerbations defined as increase of symptoms that requires a change of medication (antibiotics and/or systemic glucocorticoid) or hospitalisation. | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of hospitalisation |  | 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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COPD