This is a multicenter, first-in-human (FIH), open label, Phase 1 dose escalation and recommended Phase 2 dose (RP2D) extension trial with a primary objective to define the RP2D of SRG-514 when administered intraoperatively to patients undergoing breast-conserving cancer surgery. SRG-514 will be investigated utilizing a 3+3 convention dose escalation cohorts.

This is a multicenter, first-in-human (FIH), open label, Phase 1 dose escalation and recommended Phase 2 dose (RP2D) extension trial with a primary objective to define the RP2D of SRG-514 when administered intraoperatively to patients undergoing breast-conserving cancer surgery. SRG-514 will be investigated utilizing a 3+3 convention dose escalation cohorts, with 3 to 6 patients enrolled at each dose level, and a minimum of 6 patients enrolled at the highest dose level, for a total of approximately 12-18 patients in the dose escalation portion of the study.

SRG-514 doses will be escalated based on safety and potential dose-limiting toxicities (DLTs) within the 14-day period following SRG-514 administration. Patients who do not complete the DLT period for reasons other than study drug related toxicity would be considered non-evaluable for DLT assessment and may be replaced.

Inclusion Criteria:

• Aged 18 years or older
• Body weight >50kg
• Have a history of histologically confirmed diagnosis of breast carcinoma or ductal carcinoma in situ, except inflammatory breast cancer.
• Plan to undergo breast-conserving surgical treatment of breast cancer with curative intent. Adjuvant or neoadjuvant chemotherapy is allowed.
• Have Eastern Cooperative Oncology Group (ECOG) Performance Status <2
• Have adequate organ and bone marrow function at screening

Exclusion Criteria:

• Any known contraindication to ketorolac or other non-steroidal anti-inflammatory drugs (NSAIDs)
• Patients anticipated to require the use of a drain after breast-conserving surgery (BCS)
• Patients undergoing immediate reconstruction surgery, intraoperative radiation therapy (IORT) or brachytherapy requiring the placement of balloons or catheters during the lumpectomy procedure.