Please select the eligibility criteria that correspond to the clinical trial below.
Title: To Investigate the PRevention of OM-85 on Bronchiectasis Exacerbation (iPROBE): a Multicenter, Randomised, Double-dummy, Placebo-controlled Clinical Trial in Chinese Patients
Brief Summary: Non-cystic fibrosis bronchiectasis is characterized by irreversible dilatation of the medium-sized bronchi as a result of airway injury due to recurrent or chronic inflammation and infection. Bronchiectasis airways are often colonized with bacterial species. Infections of the airways are thought to play an important role in bronchiectasis exacerbation. The non-specific prevention of recurrent airway infections by immunostimulating agents has gained growing scientific interest. OM-85, consisting extracts of eight kinds of bacteria important in respiratory infections, has shown the benefit for significantly reducing the incidence of exacerbations of chronic obstructive pulmonary disease (COPD). The purpose of this study is to investigate the PReventive effect of OM-85 on Bronchiectasis Exacerbation in Chinese patients (iPROBE).

This study is designed as a prospective randomised double-blind placebo-controlled multi-centred trial.


Options:
A: Inclusion Criteria:

* Moderate and Severe Bronchiectasis
* No regular chest physiotherapy

Exclusion Criteria:

* Moderate or Severe COPD
B: Inclusion Criteria:

* Bronchiectasis confirmed by HRCT of the chest
* Clinically stable (not requiring antibiotics for at least 4 weeks preceding the study start date)
* Aged 18-70
* Chronic sputum production \> 5 mls for the majority of days in 3 months before enrolment
* Chronically colonized (on at least 2 occasions in the preceding 12 months) whilst clinically stable
* At least two exacerbations in the past year
* Patients able to tolerate a nebulized gentamicin challenge
* FEV1 \> 30% predicted
* Smoking \< 20 pack year history and ex-smokers \>1 year.

Exclusion Criteria:

* Cystic fibrosis
* Emphysema on HRCT chest
* Thoracic surgery within the past 1 year
* Allergic bronchopulmonary aspergillosis
* Poorly controlled asthma ( \> 20% diurnal variation in peak expiratory flows despite treatment)
* Unstable angina or uncontrolled congestive cardiac failure
* Active malignancy
* Pregnancy or breast feeding
* Creatinine clearance \< 30 mls/minute
* Vestibular instability
* Previous documented intolerance to aminoglycosides
C: Inclusion Criteria:

* An Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved written Informed Consent form is signed and dated by the subject. The Informed Consent form will be signed.
* Subject/legal representative is considered reliable and capable of adhering to the protocol (eg, able to understand and complete diaries), visit schedule or medication intake according to the judgment of the investigator.
* Subject with both genders is adult patients (\>18 years) diagnosed with bronchiectasis by high-resolution computed tomography (HRCT) of chest within 3 years of study inclusion having had at least 1 acute exacerbation in the previous year when recruiting.

Exclusion Criteria:

* History of cystic fibrosis;
* Hypogammaglobulinaemia;
* Allergic bronchopulmonary aspergillosis;
* Active tuberculosis;
* Subject has been assigned to treatment in a study of the medication under investigation in this study in the previous 6 months.
* Subject has a history of chronic alcohol or drug abuse within the last 6 months.
* Subject has any medical or psychiatric condition that, in the opinion of the investigator, could jeopardize or would compromise the subject's ability to participate in this study.
* Subject has a known hypersensitivity to any components of OM85.
* Recent immunostimulant in last 3 months, cancer, stroke, severe cardiovascular disease, hepatic/kidney impairment, active TB, immuno-related diseases (RA and inflammatory bowel diseases), active ABPA.
* Subjects are free to withdraw from the study at any time, without prejudice to their continued care.
* Subject develops an illness that would interfere with his/her continued participation.
* Subject is noncompliant with the study procedures or medications in the opinion of the investigator.
* Subject takes prohibited concomitant medications as defined in this protocol (flu vaccine and pneumococcal vaccine).
* Subject withdraws his/her consent.
* There will have a confirmation of a pregnancy during the study, as evidenced by a positive pregnancy test.
* The sponsor or a regulatory agency requests withdrawal of the subject.
D: Inclusion Criteria:

* Patients aged 18 ≥ years
* Bronchiectasis diagnosed by plain bronchography or high resolution computer tomography.
* Minimal 3 lower respiratory tract infections (LRTI) treated with oral/intravenous (IV) antibiotics in the year preceding the study inclusion.
* The presence of chronic respiratory symptoms such as cough, dyspnoea, expectoration of sputum.
* At least one positive sputum culture in the preceding year.
* Informed consent

Exclusion Criteria:

* Previous ( ≥ 4 weeks) prolonged macrolide therapy.
* Pregnant or lactating women.
* Allergy to macrolides.
* Intolerance to macrolides.
* Liver disease (alanine transaminase and/or aspartate transaminase levels 2 or more times the upper limit of normal).
* Use of antibiotics within 14 days of screening.
* Use of oral or IV corticosteroids (≥ 30 mg prednisolone/daily) within 30 days of screening.
* Other research medication started 2 months prior to inclusion.

Answer: C