A Trial to Compare the Pharmacokinetics of Two Presentations of Navenibart in Healthy Participants

Key Inclusion Criteria: * Males and females 18 to 55 years of age * In good health, as determined by the Investigator * Written informed consent, including confirmation of willingness to comply with all trial procedures * Body weight between 50 and 100 kg, and body mass index (BMI) between 18 and 30 kg/m\^2 * Has not previously received navenibart * Not pregnant or breastfeeding and agreement to comply with requirements for pregnancy and breastfeeding, contraception use, and egg donation for the specified periods. Key Exclusion Criteria: * Prior or ongoing medical history, or results of a medical assessment, that the Investigator feels could result in a risk to the safety of the participant or the quality of data from the trial. * Key laboratory results outside of defined ranges * History or positive test results for tobacco, nicotine products, alcohol, marijuana (cannabis), or drugs of abuse * Receipt of other prohibited medications, biologic medications, or investigational products within defined windows prior to dosing * History of severe allergic reactions with an unknown cause * Donation of blood (at least 500 mL), or any amount of platelets or plasma within defined windows prior to dosing. * Known hypersensitivity to any component of navenibart * Any condition that the Investigator feels may affect the ability to provide written informed consent or demonstrates unwillingness or inability to comply with trial procedures