Single-dose to Evaluate the Pharmacokinetics of GTX-101 and Subcutaneous Injectable Bupivacaine in Healthy Subjects

Inclusion Criteria: * Provision of signed and dated informed consent form (ICF) * Healthy adult male or female, aged 18 to 55 years, inclusive, at Screening * Body mass index (BMI) within 18.0 kg/m2 to 30.0 kg/m2, inclusively at Screening * Have no clinically significant diseases captured in the medical/surgical history or evidence of clinically significant findings on the physical examination (including vital signs), weight and/or clinical laboratory tests and/or ECG, as determined by an Investigator Exclusion Criteria: * History of significant hypersensitivity to bupivacaine, local anesthetic agents of amide type, or any related products (including excipients of the formulations) as well as severe hypersensitivity reactions (like angioedema) to any drugs * Presence of significant gastrointestinal, liver or kidney disease, or any other conditions known to interfere with the absorption, distribution, metabolism or excretion of drugs or known to potentiate or predispose to undesired effects * History of significant gastrointestinal, liver or kidney disease that may affect drug bioavailability