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:

* Diagnosis of CF, as determined by the 1997 CF Consensus Conference criteria: sweat chloride level greater than 60 milliequivalent/liter (mEq/L) by quantitative pilocarpine iontophoresis; or a genotype with two identifiable mutations consistent with CF; or an abnormal nasal transepithelial potential difference and one or more clinical features consistent with CF
* For participants greater than 15 months of age: documented new onset of positive oropharyngeal, sputum, or lower respiratory tract culture for PA within 6 months of study entry, defined as either: 1) first lifetime documented PA positive culture; or 2) PA recovered after at least a 2-year history of PA negative respiratory cultures (at least one culture per year)
* For participants 12-15 months of age: at least one documented positive oropharyngeal, sputum, or lower respiratory tract culture for PA since birth or CF diagnosis
* Clinically stable with no evidence of any significant respiratory symptoms or chest radiograph findings at screening that would require administration of intravenous anti-pseudomonal antibiotics, oxygen supplementation, or hospitalization

Exclusion Criteria:

* History of aminoglycoside hypersensitivity or adverse reaction to inhaled aminoglycoside
* History of hypersensitivity or adverse reaction to ciprofloxacin or other fluoroquinolone medications
* History of persistent, unresolved hearing loss documented by audiometric testing on at least two occasions and not associated with middle ear disease or an abnormal tympanogram
* Abnormal kidney function at study entry (defined as a serum creatinine level greater than 1.5 times the upper limit of normal for participant's age)
* Abnormal liver function test results at study entry (defined as alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) levels greater than two times the upper limit of normal range)
* Use of any investigational drug within 30 days of study entry
* Use of loop diuretics, phenytoin, warfarin, theophylline, or other methylxanthines within 30 days of study entry
* Use of more than one course of intravenous anti-pseudomonal antibiotics (at least 10 continuous days of medication use) or more than one course of inhaled anti-pseudomonal antibiotics (at least 28 continuous days of medication use) within 2 years of study entry; intravenous or inhaled anti-pseudomonal antibiotics must be stopped at least 30 days prior to study entry
* Chronic macrolide use (more than 90 day duration) in the 3 months prior to study entry
* Presence of a condition or abnormality that would compromise the participant's safety or the quality of the study data, in the opinion of the investigator
B: Inclusion Criteria:

* Documentation of CF diagnosis as evidenced by one or more clinical features consistent with the CF phenotype and one or more of the following criteria:

  * Sweat chloride greater than or equal to 60 mEq/L by quantitative pilocarpine iontophoresis test (QPIT);
  * Two well-characterized mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene; or
  * Abnormal nasal potential difference.
* PA present in expectorated sputum or throat swab culture at Screening.
* FEV1 between (and including) 25% and 75% predicted at Screening.
* Negative pregnancy test at Screening.
* Ability to perform reproducible pulmonary function tests.
* Arterial oxygen saturation (SaO2) greater than or equal to 90% on room air at Screening.
* Ability to provide written informed consent.

Exclusion Criteria:

* Administration of antipseudomonal antibiotics by inhalation, IV, or oral routes (including azithromycin) within 14 days of Screening.
* Current use of oral corticosteroids in doses exceeding the equivalent of 10 mg prednisone/day or 20 mg prednisone every other day.
* History of sputum or throat swab culture yielding Burkholderia cepacia in the previous 2 years.
* History of daily continuous oxygen supplementation or requirement for more than 2 liters/minute at night.
* Administration of any investigational drug or use of any investigational device within 28 days of Screening and within 6 half-lives of the investigational drug (whichever was longer).
* Known local or systemic hypersensitivity to monobactam antibiotics.
* Inability to tolerate short-acting bronchodilator use at least three times daily.
* Changes in protocol-permitted antimicrobial, bronchodilator, anti-inflammatory, or corticosteroid medications within 7 days prior to Screening or between Screening and the next visit.
* Changes in physiotherapy technique or schedule within 7 days prior to Screening or between Screening and the next visit.
* History of lung transplantation.
* A chest x-ray indicating abnormal findings at Screening or within the previous 90 days.
* Abnormal renal or hepatic function at Screening.
* Any serious or active medical or psychiatric illness which, in the opinion of the investigator, would have interfered with participant treatment, assessment, or compliance with the protocol.
* Use of aerosolized hypertonic saline (except for sputum induction) during the 14 days preceding Visit 1.
C: 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.
D: Inclusion Criteria (selected):

* \> 12 years of age
* Confirmed Diagnosis of Cystic Fibrosis
* Positive sputum culture for P. aeruginosa 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 tobramycin 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 inhaled or systemic aminoglycosides including tobramycin or any excipients
* Evidence of acute upper within 10 days or lower respiratory infections within 28 days prior to dosing
* CrCl \< 20 at Screening
* History of lung transplantation

Extension Portion of the Study: Patients enrolled in Mpex 209 are permitted to participate in the open label extension as long as they complete Visit 7 (Day 168), provide informed consent for participation in the open label extension of in the study and are clinically stable, as assessed by the Investigator.

Answer: C