Evaluation of Efficacy and Safety of Suzetrigine (SUZ) for Pain Associated With Diabetic Peripheral Neuropathy

Key Inclusion Criteria: * Body weight greater than or equal to (≥)45 kilogram (kg) * Body mass index (BMI) ≥18 to less than (\<) 40 kilogram per meter square (kg/m\^2) * Diagnosis of diabetes mellitus type 1 or type 2 and with glycosylated hemoglobin A1c (HbA1c) ≤9% and the presence of bilateral pain in lower extremities due to DPN for at least 1 year * Weekly average of daily NPRS score ≥4 and less than or equal to (≤) 9 with limited variation in the 7-day Baseline Period Key Exclusion Criteria: * More than 3 missing daily NPRS scores during the 7-day Baseline Period * Received Journavx within 30 days of study drug dosing * Any sensory abnormality (excluding DPN) as pre-specified in the protocol Other protocol defined Inclusion/Exclusion criteria may apply.