Evaluation of Efficacy and Safety of VX-993 for Pain Associated With Diabetic Peripheral Neuropathy

Key Inclusion Criteria: * Diagnosis of diabetes mellitus type 1 or type 2 with * Glycosylated hemoglobin A1c (HbA1c) less than or equal to (≤) 9% and * Presence of bilateral pain in lower extremities due to DPN (defined as a symmetric, length-dependent sensory or sensorimotor polyneuropathy) for at least 1 year Key Exclusion Criteria: * Painful neuropathy other than DPN * History of cardiac dysrhythmias requiring anti-arrhythmia treatment(s) * History of a clinical atherosclerotic event, such as myocardial infarction or stroke, within the past 12 months Other protocol defined Inclusion/Exclusion criteria may apply.