Document

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1) Registration Statement (Form S-8 No. 333-60293) pertaining to the Stock Incentive Plan of Vical Incorporated,

(2) Registration Statement (Form S-8 No. 333-80681) pertaining to the Stock Incentive Plan of Vical Incorporated,

(3) Registration Statement (Form S-8 No. 333-66254) pertaining to the Stock Incentive Plan of Vical Incorporated,

(4) Registration Statement (Form S-8 No. 333-97019) pertaining to the Stock Incentive Plan of Vical Incorporated,

(5) Registration Statement (Form S-8 No. 333-107581) pertaining to the Stock Incentive Plan of Vical Incorporated,

(6) Registration Statement (Form S-8 No. 333-116951) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(7) Registration Statement (Form S-8 No. 333-135266) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(8) Registration Statement (Form S-8 No. 333-143885) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(9) Registration Statement (Form S-8 No. 333-169344) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(10) Registration Statement (Form S-8 No. 333-183215) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(11) Registration Statement (Form S-8 No. 333-190343) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(12) Registration Statement (Form S-8 No. 333-213034) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(13) Registration Statement (Form S-8 No. 333-219804) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(14) Registration Statement (Form S-8 No. 333-233698) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated and the Equity Incentive Plan of Brickell Biotech, Inc.,

(15) Registration Statement (Form S-3 No. 333-236757) of Brickell Biotech, Inc.,

(16) Registration Statement (Form S-3 No. 333-236353) of Brickell Biotech, Inc.,

(17) Registration Statement (Form S-1 No. 333-237568) of Brickell Biotech, Inc.,

(18) Registration Statement (Form S-8 No. 333-237859) pertaining to the 2020 Omnibus Long-Term Incentive Plan of Brickell Biotech, Inc., the Equity Incentive Plan of Brickell Biotech, Inc., and the Amended and Restated Stock Incentive Plan of Vical Incorporated,

(19) Registration Statement (Form S-1 No. 333-238298) of Brickell Biotech, Inc.,

(20) Registration Statement (Form S-8 No. 333-248688) pertaining to the 2020 Omnibus Long-Term Incentive Plan of Brickell Biotech, Inc.,

(21) Registration Statement (Form S-1 No. 333-249441) of Brickell Biotech, Inc.,

(22) Registration Statement (Form S-3 No. 333-254037) of Brickell Biotech, Inc.,

(23) Registration Statement (Form S-8 No. 333-256113) pertaining to the 2020 Omnibus Long-Term Incentive Plan of Fresh Tracks Therapeutics, Inc.,

(24) Registration Statement (Form S-8 No. 333-256114) pertaining to the Employee Stock Purchase Plan of Fresh Tracks Therapeutics, Inc.,

(25) Registration Statement (Form S-8 No. 333-265183 pertaining to the 2020 Omnibus Long-Term Incentive Plan of Brickell Biotech, Inc.,

(25) Registration Statement (Form S-8 No. 333-237859 pertaining to the 2020 Omnibus Long-Term Incentive Plan of Brickell Biotech, Inc.,

(26) Registration Statement (Form S-8 No. 333-233698) pertaining to the Amended and Restated Stock Incentive Plan of Vical Incorporated and the Equity Incentive Plan of Brickell Biotech, Inc., and

(27) Registration Statement (Form S-1 No. 333-267254) of Brickell Biotech, Inc.

of our report dated March 30, 2023, with respect to the consolidated financial statements of Fresh Tracks Therapeutics, Inc., included in this Annual Report (Form 10-K) of Fresh Tracks Therapeutics, Inc. for the year ended December 31, 2022.