Please select the eligibility criteria that correspond to the clinical trial below.
Title: Longitudinal Assessment of Risk Factors For and Impact of Pseudomonas Aeruginosa Acquisition and Early Anti-Pseudomonal Treatment in Children With CF
Brief Summary: The purpose of this study is to better define risk factors preceding first isolation of Pseudomonas aeruginosa (Pa) from respiratory cultures in cystic fibrosis (CF) lung disease and to better define clinical outcomes associated with acquisition of Pa. This study will also collect and bank DNA samples for current and future studies designed to enhance the understanding of the pathogenesis of CF.


Options:
A: Inclusion Criteria:

* Male or female ages less than or equal to 12 years.
* Diagnosis of CF based upon the criteria established by the 1997 CF Consensus Conference: (i) sweat chloride \> 60 mEq/L by quantitative pilocarpine iontophoresis; or (ii) genotype with two identifiable mutations consistent with CF; or (iii) an abnormal nasal transepithelial potential difference, and (iv) one or more clinical features consistent with CF.
* No prior isolation of Pa from respiratory cultures (1 or more cultures in 24 months prior to enrollment), or, if prior isolation of Pa from respiratory cultures, at least a two-year history of Pa negative cultures (1 or more cultures/year), or concurrently enrolled in the EPIC Clinical Trial.
* Signed informed consent to participate in data submission to the CFF National Patient Registry.
* Signed informed consent by parent or legal guardian.
B: Inclusion Criteria:

* Patients of either sex aged ≥ 6;
* Clinical diagnosis of cystic fibrosis defined as: (1)Patients preferably registered in the National Registry of CF (or other documents depending on country legislation); (2) Evidence of two or more typical pulmonary clinical features observed in CF, e.g., persistent colonization/infection with typical CF pathogens, chronic cough and sputum production, persistent chest radiography abnormalities, airway obstruction, nasal polyps and/or digital clubbing;
* Positive response in the standard sweat test (sweat chloride concentration ≥ 60 mmol/l for the standard method or ≥ 80 mmol/L for a microduct technique) documented in the clinical records and/or gene mutation documented in the clinical records;
* Chronic colonization of P. aeruginosa: presence in a sputum or throat culture of a minimum of 2 positive samples for P. aeruginosa over the previous 12 months and/or presence of more than two precipitating antibodies against P. aeruginosa;
* Sputum containing P. aeruginosa susceptible to tobramycin (defined as a zone diameter ≥ 16 mm after testing with 10 µg tobramycin disk or as a minimal inhibition concentration based on microdilution testing system) as identified by local laboratory at screening visit;
* Forced expiratory volume in 1 sec (FEV₁) ≥ 40% and ≤ 80% of the predicted normal value;
* Written informed consent obtained by parents/legal representative according to local regulations) and by the patient (when appropriate).

Exclusion Criteria:

* Administration of antipseudomonal antibiotic therapy by any route in the previous 4 weeks;
* 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;
* Patients with end-stage lung disease, candidates for heart-lung transplantation;
* History of other clinically significant cardiac, renal, neurological, gastrointestinal, hepatic or endocrine disease related to cystic fibrosis, whose sequelae and/or treatment can interfere with the results of the present study;
* Female subjects: pregnant or with active desire to be pregnant, lactating mother or lack of efficient contraception in a subject with child-bearing potential (i.e., contraceptive methods other than rod containing a hormone that prevents user from getting pregnant and that will be placed under the skin, syringes that contain a contraceptive hormone, combined birth control pill, i.e., such that contains two hormones, some intrauterine devices (IUDs) and sexual abstinence). A pregnancy test in urine is to be carried out in women of a fertile age at screening and at the last clinic visit;
* Known hypersensitivity to aminoglycosides;
* Patients with evidence of alcohol or drug abuse, likely to be not compliant with the study protocol or likely to be not compliant with the study treatments;
* Participation in another clinical trial with an investigational drug in the four weeks preceding the screening visit.
C: Inclusion Criteria (selected):

* \> 16 years of age
* Confirmed Diagnosis of Cystic Fibrosis
* Positive sputum culture for P. aeruginosa within the past 18 months
* Patients are able to elicit a forced expiratory volume in 1 second (FEV1) \>/= 25% but \</= 85% of predicted value at screening
* Have received at least 3 courses of inhaled antimicrobials over the preceding 12 months
* Clinically stable with no changes in health status within the last 30 days
* Able to reproducibly produce sputum and perform spirometry

Exclusion Criteria (selected):

* Use of any nebulized or systemic antibiotics within 30 days prior to baseline
* History of hypersensitivity to fluoroquinolones or intolerance with aerosol medication
* Evidence of acute upper within 10 days or lower respiratory infections within 30 days prior to dosing
* Creatine clearance \< 50mg/ml, aspartate transaminase (AST), alanine transaminase (ALT) or total bilirubin \>/= 3 x upper limit of normal (ULN) at Screening
D: Inclusion Criteria (selected):

* \>/= 12 years of age
* Confirmed Diagnosis of Cystic Fibrosis
* Positive sputum culture for P. aeruginosa at screening and within the past 12 months
* Patients are able to elicit an FEV1 \>/= 25% but \</= 85% of predicted value at screening
* Have received at least 3 courses of inhaled antimicrobials over the preceding 12 months
* Clinically stable with no changes in health status within the last 28 days
* Able to reproducibly produce sputum and perform spirometry

Exclusion Criteria (selected):

* Use of any nebulized or systemic antibiotics within 28 days prior to baseline
* History of hypersensitivity to fluoroquinolones or intolerance with aerosol medication
* Evidence of respiratory infections within 14 days prior to dosing
* CrCl \< 20ml/min or \< 20ml/min/1.73 m2 at Screening

Answer: A