Registry to Monitor the Susceptibility to Aztreonam of Pseudomonas Aeruginosa Isolates From Cystic Fibrosis Patients

A Prospective, 5-year Registry Study to Monitor the Susceptibility to Aztreonam of Pseudomonas Aeruginosa (PA) Isolates From Patients With Cystic Fibrosis in the United States [AIR-CF5]

This is a prospective, longitudinal, 5-year study that will enroll participants from the existing Cystic Fibrosis Foundation (CFF) patient registry. Each enrolled participant will provide samples for microbiological evaluation, obtained upon enrollment and then once per year thereafter for 5 years.

Key Inclusion Criteria:

Subjects must meet all of the following inclusion criteria to be eligible for participation in this study.

• Current participant or willingness to participate in the CFF patient registry database

• ≥ 6 years of age

• Subject has CF as diagnosed by one of the following

  • Documented sweat chloride ≥ 60 mEq/L by quantitative pilocarpine iontophoresis test, or
  • Two well-characterized genetic mutations in the CFTR gene, or
  • Abnormal nasal potential difference (NPD) AND accompanying clinical characteristics consistent with CF. For subjects who lack documentation of either a positive sweat chloride test or an abnormal NPD, and who have only one well-characterized genetic mutation of the CFTR gene, the diagnosis of CF is determined by the Investigator.

• FEV1 ≥ 25% predicted and ≤ 90% predicted.

• ≥ 2 lower respiratory tract cultures positive for PA with results documented in the subject's medical history.

• Subject must be able to provide written informed consent/assent prior to any study related procedure; parent/guardian must be able to give written informed consent as necessary prior to any study related procedure.

Key Exclusion Criteria:

Subjects who meet the following exclusion criterion are not to be enrolled in this study.

• Any serious active medical or psychiatric illness that, in the opinion of the Investigator, would interfere with subject assessment.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.