Safety, Tolerability, Pharmacokinetics, and Efficacy of JBT-101 (Lenabasum) in Cystic Fibrosis

Inclusion Criteria: * Documentation of a CF diagnosis as evidenced by 1 or more clinical features consistent with the CF phenotype and 1 or more of the following criteria: 1. Sweat chloride equal to or greater than 60 mEq/L by quantitative pilocarpine iontophoresis test; 2. Two well-characterized mutations in the CFTR gene * FEV1 ≥ 40% predicted corrected * Stable treatment of CF for 14 days before Visit 1 Exclusion Criteria: * Severe or unstable CF, such as: 1. Intravenous antibiotic treatment within 14 days before Visit 1 2. Treatment with any corticosteroids \> 10 mg per day or \> 20 mg every other day oral prednisone or equivalent within 14 days before Visit 1 * Any one of the following values for laboratory tests at Screening: 1. A positive pregnancy test (or at Visit 1); 2. Hemoglobin \< 10 g/dL 3. Neutrophils \< 1.0 x 10\~9/L 4. Platelets \< 75 x 10\~9/L 5. Creatinine clearance \< 50 ml/min according to modified Cockcroft-Gault equation 6. Serum transaminases \> 2.5 x upper normal limit 7. Total bilirubin ≥ 1.5 x upper limit of normal * Any other condition that, in the opinion of the Principal Investigator, is clinically significant and may put the subject at greater safety risk, influence response to study product, or interfere with study assessments.