Cystic Fibrosis (CF) is a rare, life-threatening, genetic disease that affects the lungs and digestive system, significantly impairing the quality of life, with those affected having a median age of death at 40. The main objectives of this study are to assess the safety and pharmacokinetics of the combination therapy of galicaftor/navocaftor/ABBV-576.

Inclusion Criteria:

• Body Mass Index (BMI) is ≥ 18.0 to ≤ 29.9 kg/m2 after rounding to the tenths decimal.
• A condition of general good health, based upon the results of a medical history, physical examination, vital signs, laboratory profile and a 12-lead electrocardiogram (ECG).

Exclusion Criteria:

• History of epilepsy, any clinically significant cardiac, respiratory (except mild asthma as a child), renal, hepatic, gastrointestinal, hematologic or psychiatric disease or disorder, or any uncontrolled medical illness.
• History of any clinically significant sensitivity or allergy to any medication or food.
• History of any clinically significant condition listed in the protocol.