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Dosed First Patient in the Single Ascending Dose Part 1 of the Phase 1 Clinical Trial of DA-1726 in Obesity, With Top-Line Data Readout Expected in the Third Quarter of 2024 Anticipate First Patient to be Dosed in the Multiple Ascending Dose Part 2 of the Phase 1 Clinical Trial of DA-1726 in the Third Quarter of 2024 Part 2 of the Phase 2a Trial of DA-1241 for the Treatment of MASH Underway After Enrollment of Part 1 Completed, With Data Expected in the Fourth Quarter of 2024 Cash of $16.0 Million, Expected to Fund the Company Into the Fourth Quarter of 2024 CAMBRIDGE, Mass., May 9, 2024 /PRNewswire/ -- NeuroBo Pharmaceuticals, Inc. (Nasdaq: NRBO), a clinical-stage biotechnology company focused on transforming cardiometabolic diseases, today announced financial results for the first quarter ended March 31, 2024 and provided a corporate update. "During the first quarter and subsequently, we continued to diligently advance the clinical development of our two, next generation cardiometabolic assets, with promising therapeutic potential in the obesity and metabolic dysfunction-associated steatohepatitis (MASH) markets," stated Hyung Heon Kim, President and Chief Executive Officer of NeuroBo. "This past month, we began dosing patients in our first-in-human, Phase 1 clinical trial of DA-1726, a novel, dual oxyntomodulin (OXM) analog agonist that functions as a glucagon-like peptide-1 receptor (GLP1R) and glucagon receptor (GCGR), in obesity. Based on pre-clinical evidence generated to date, we strongly believe that DA-1726 may offer a superior tolerability profile compared to currently available GLP-1 agonists, due to its unique ratio of GLP1R and glucagon receptors, reducing food intake while increasing energy expenditure, leading to improved patient outcomes. Looking ahead for DA-1726, we eagerly anticipate presenting new, compelling pre-clinical data at the American Diabetes Association 84th Scientific Sessions in June of this year. We anticipate reporting top-line data from the single ascending dose (SAD) Part 1 in the third quarter of this year and also expect to dose the first patient in the multiple ascending dose (MAD) Part 2 in the third quarter of this year, with the expectation for the top-line data from the MAD Part 2 in the first quarter of 2025." Mr. Kim continued, "Additionally, just after quarter end, we fully enrolled Part 1 of the Phase 2a clinical trial for DA-1241, a novel G-Protein-Coupled Receptor 119 (GPR119) agonist for treating MASH. This milestone followed closely on the heels of the Safety Review Committee (SRC) approval, allowing the study to continue without modification, an early indication of the safety of DA-1241. Part 2 of this trial, in combination with sitagliptin, a DPP4 inhibitor, continues to enroll patients. Pre-clinical safety data, reported in January, showed promising results for DA-1241 for this combination therapy. Notably, two poster presentations, with new pre-clinical evidence on DA-1241 in combination with semaglutide (Segovia®), will be presented at the EASL Congress 2024, in June. Based on both pre-clinical and clinical evidence generated to date, we continue to believe that DA-1241 has the potential to be a safe and effective treatment for MASH and anticipate reporting top-line results in the fourth quarter of this year." First Quarter 2024 and Subsequent Highlights April 2024: Dosed the first patient in the SAD Part 1 of its two-part Phase 1 clinical trial of DA-1726 for the treatment of obesity. April 2024: Completed enrollment of Part 1 of its two-part Phase 2a trial evaluating the efficacy and safety of DA-1241 in MASH. Approximately 49 patients with presumed MASH were randomized into Part 1 with a 1:2:1 ratio into 3 treatment groups: DA-1241 50 mg, DA-1241 100 mg, or placebo. March 2024: Received SRC approval to continue the two-part Phase 2a trial of DA-1241 for the treatment of MASH without modification following a blinded safety review of the first six months of study conduct. March 2024: Announced the appointment of Marshall Woodworth as Chief Financial Officer, following his tenure as Acting Chief Financial Officer. February 2024: Received first site Institutional Review Board (IRB) approval for Alexander Prezioso, M.D., Investigator, Clinical Pharmacology of Miami, in Hialeah, FL, to proceed with the Phase 1 clinical trial of DA-1726 for the treatment of obesity. February 2024: Announced that the FDA has cleared its Investigational New Drug (IND) application for the Phase 1 clinical trial of DA-1726 in obesity. January 2024: Reported positive pre-clinical safety data of DA-1241 in combination with sitagliptin, a DPP4 inhibitor. The pre-clinical results demonstrated that once daily oral administration in rats, of sitagliptin alone (180 mg/kg/day), DA-1241 alone (100 mg/kg/day), or sitagliptin in combination with DA-1241 (up to 180/100 mg/kg/day sitagliptin+DA-1241) for 13 weeks, was well tolerated with no adverse effects. Additionally, opened enrollment for Part 2 of its Phase 2a clinical trial of DA-1241 when co-administered with sitagliptin for the treatment of MASH. Anticipated Clinical Milestones DA-1726 in Obesity: Top-line data from the single ascending dose (SAD) Part 1 is expected in the third quarter of 2024. Initiation of the multiple ascending dose (MAD) study Part 2 is expected in the third quarter of 2024 and the top-line data expected in the first quarter of 2025. DA-1241 in MASH: Full enrollment of the two-part Phase 2a clinical trial of DA-1241 in MASH is expected in the third quarter of 2024. Top-line results are expected to be available in the fourth quarter of 2024. First Quarter Financial and Operating Results Research and Development (R&D) Expenses were approximately $4.9 million for the three months ended March 31, 2024, as compared to approximately $0.6 million for the three months ended March 31, 2023. The increase of approximately $4.3 million was primarily attributable to increased development activities for DA-1241 and DA-1726. Specifically, the $4.3 million increase in R&D expenses was primarily attributable to (i) $3.9 million in higher expenditures for investigational drug manufacturing costs, non-clinical and preclinical services, clinical trials and consulting and (ii) $0.4 million in higher employee compensation and benefits. General and Administrative Expenses were approximately $2.0 million for the three months ended March 31, 2024, compared to approximately $1.9 million for the three months ended March 31, 2023. The increase of approximately $0.1 million was primarily attributable to $0.2 million in higher non-cash stock-based compensation, partially offset by $0.1 million in lower legal and professional fees. Other Income (Expense) was approximately $0.2 million for the three months ended March 31, 2024, compared to approximately ($0.1 million) for the three months ended March 31, 2023. The change was primarily attributable to $0.2 million of interest income earned on our cash balance for the three months ended March 31, 2024, of which there was none for the three months ended March 31, 2023. Net Loss for the three months ended March 31, 2024, was approximately $6.7 million, or $1.32 per basic and diluted share, based on 5,089,408 weighted average shares of common stock, basic and diluted, compared with a net loss of approximately $2.6 million, or $0.51 per basic and diluted share, based on 5,059,003 weighted average shares of common stock, basic and diluted, for the three months ended March 31, 2023. Cash was approximately $16.0 million as of March 31, 2024, compared to approximately $22.4 million as of December 31, 2023. The company expects its cash position will be adequate to fund operations into the fourth quarter of 2024 and we are currently exploring various financing alternatives. About NeuroBo Pharmaceuticals NeuroBo Pharmaceuticals, Inc. is a clinical-stage biotechnology company focused on transforming cardiometabolic diseases. The company is currently developing DA-1726 for the treatment of obesity, and is developing DA-1241 for the treatment of Metabolic Dysfunction-Associated Steatohepatitis (MASH). DA-1726 is a novel oxyntomodulin (OXM) analogue that functions as a glucagon-like peptide-1 receptor (GLP1R) and glucagon receptor (GCGR) dual agonist. OXM is a naturally-occurring gut hormone that activates GLP1R and GCGR, thereby decreasing food intake while increasing energy expenditure, thus potentially resulting in superior body weight loss compared to selective GLP1R agonists. DA-1241 is a novel G-protein-coupled receptor 119 (GPR119) agonist that promotes the release of key gut peptides GLP-1, GIP, and PYY. In pre-clinical studies, DA-1241 demonstrated a positive effect on liver inflammation, lipid metabolism, weight loss, and glucose metabolism, reducing hepatic steatosis, hepatic inflammation, and liver fibrosis, while also improving glucose control. For more information, please visit . Forward Looking Statements Certain statements in this release may be considered forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as "believes", "expects", "anticipates", "may", "will", "should", "seeks", "approximately", "potential", "intends", "projects," "plans", "estimates" or the negative of these words or other comparable terminology (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. Forward-looking statements are predictions, projections and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this release, including, without limitation, those risks associated with NeuroBo's ability to execute on its commercial strategy; the timeline for regulatory submissions; the ability to obtain regulatory approval through the development steps of NeuroBo's current and future product candidates; the ability to realize the benefits of the license agreement with Dong-A ST Co. Ltd., including the impact on future financial and operating results of NeuroBo; the cooperation of NeuroBo's contract manufacturers, clinical study partners and others involved in the development of NeuroBo's current and future product candidates; potential negative interactions between NeuroBo's product candidates and any other products with which they are combined for treatment; NeuroBo's ability to initiate and complete clinical trials on a timely basis; NeuroBo's ability to recruit subjects for its clinical trials; whether NeuroBo receives results from NeuroBo's clinical trials that are consistent with the results of pre-clinical and previous clinical trials; impact of costs related to the license agreement, known and unknown, including costs of any litigation or regulatory actions relating to the license agreement; the effects of changes in applicable laws or regulations; the effects of changes to NeuroBo's stock price on the terms of the license agreement and any future fundraising; and other risks and uncertainties described in our filings with the SEC. Forward-looking statements speak only as of the date when made. NeuroBo does not assume any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. Contacts: NeuroBo Pharmaceuticals, Inc. Marshall H. Woodworth Chief Financial Officer +1-857-299-1033 [email protected] Rx Communications Group Michael Miller +1-917-633-6086 [email protected] - Tables to Follow - SOURCE NeuroBo Pharmaceuticals, Inc.

CAMBRIDGE, Mass., April 30, 2024 /PRNewswire/ -- NeuroBo Pharmaceuticals, Inc. (Nasdaq: NRBO), a clinical-stage biotechnology company focused on the transformation of cardiometabolic diseases, today announced the acceptance of poster presentations for its promising cardiometabolic assets, DA-1241 and DA-1726, at the EASL Congress 2024 and the American Diabetes Association (ADA) 84th Scientific Sessions in June. "Having multiple posters selected for presentation at two of the most esteemed scientific forums emphasizes the scientific community's recognition of the compelling pre-clinical data that we have generated for DA-1241 and DA-1726," stated Hyung Heon Kim, President and Chief Executive Officer of NeuroBo. "We have completed enrollment for Part 1 of our Phase 2a clinical trial of DA-1241, a novel G-Protein-Coupled Receptor 119 (GPR119) agonist for the treatment of metabolic dysfunction-associated steatohepatitis (MASH). Additionally, we have recently dosed the first patient in the single ascending dose (SAD) Part 1 of our Phase 1 trial of DA-1726, a novel, dual oxyntomodulin (OXM) analog agonist that functions as a glucagon-like peptide-1 receptor (GLP1R) and glucagon receptor (GCGR) for the treatment of obesity. DA-1726 has consistently shown, in our preclinical data, to sustain weight loss in diet-induced obese models by decreasing food consumption and boosting energy expenditure. Both programs are progressing well, and we have been able to significantly accelerate the clinical timelines for DA-1726. We currently expect to both dose the first patient in the multiple ascending dose (MAD) Part 2 and read-out top-line data from the SAD Part 1 in the third quarter of 2024, with top-line data from the MAD Part 2 expected in the first quarter of 2025." June 5-8: EASL Congress 2024. Members of the Dong-A ST Research Center and DA-1241 Phase 2 trial Contract Research Organization (CRO), Gubra, will present pre-clinical data on DA-1241, in two poster presentations at this congress in Milan, Italy. Abstract Title: DA-1241, a GPR119 Agonist, Combined with Semaglutide Synergistically Improved Liver Fibrosis in Mice with CCl4-Induced Liver Fibrosis Authors: Il Hoon Jung, Tae Hyoung Kim, Sujin Lee, Yuna Chae, Hyung Heon Kim, Mi-Kyung Kim Presenter Name: II Hoon Jung, Dong-A ST Research Center Abstract Number: 117 Session: Poster - Fibrosis / Stellate cell biology Session Date: Thursday, June 6, 2024 Session Time: 8:30 am – 6:00 pm CET Abstract Title: Additive Hepatoprotective Effects of DA-1241, a Novel GPR119 Agonist, in Combination with Semaglutide in the GAN Diet-Induced Obese and Biopsy-Confirmed Mouse Model of MASH Authors: Monika Lewinska, Malte H. Nielsen, Susanne Pors, Henrik B. Hansen, Il Hoon Jung, Hyung Heon Kim, Michael Feigh, Mi-Kyung Kim Presenter Name: Dr. Michael Feigh, Vice President Scientific Research, Gubra Abstract Number: 1950 Session: Poster - MASLD: Experimental and pathophysiology Session Date: Thursday, June 6, 2024 Session Time: 8:30 am – 6:00 pm CET June 21-24: American Diabetes Association (ADA) 84th Scientific Sessions. A member of the Dong-A ST Research Center will present pre-clinical data on DA-1726 in a poster presentation at this scientific session in Orlando, FL. Abstract Title: DA-1726, a GLP1R/GCGR Dual Agonist, A Promising Approach in Obesity Treatment and Lipid Management Presenter Name: Yuna Chae, DA-1726 Project Manager, Dong-A ST Research Center Authors: Il-Hun Jung, Tae-Hyoung Kim, Su Jin Lee, Hyung Heon Kim, Mi-Kyung Kim, Yuna Chae Abstract Number: 2024-LB-5728 Poster Presentation Number: 2058-LB Session: 23-A Obesity-Animal Session Date: Saturday, June 22, 2024 Session Time: 12:30 pm – 1:30 pm ET After the presentations, the posters will be accessible within the "Presentations" section of NeuroBo's website at: . About NeuroBo Pharmaceuticals NeuroBo Pharmaceuticals, Inc. is a clinical-stage biotechnology company focused on transforming cardiometabolic diseases. The company is currently developing DA-1241 for the treatment of Metabolic Dysfunction-Associated Steatohepatitis (MASH) and Type 2 Diabetes Mellitus (T2DM), and is developing DA-1726 for the treatment of obesity. DA-1241 is a novel G-protein-coupled receptor 119 (GPR119) agonist that promotes the release of key gut peptides GLP-1, GIP, and PYY. In preclinical studies, DA-1241 demonstrated a positive effect on liver inflammation, lipid metabolism, weight loss, and glucose metabolism, reducing hepatic steatosis, hepatic inflammation, and liver fibrosis, while also improving glucose control. DA-1726 is a novel oxyntomodulin (OXM) analogue that functions as a glucagon-like peptide-1 receptor (GLP1R) and glucagon receptor (GCGR) dual agonist. OXM is a naturally-occurring gut hormone that activates GLP1R and GCGR, thereby decreasing food intake while increasing energy expenditure, thus potentially resulting in superior body weight loss compared to selective GLP1R agonists. For more information, please visit . Forward Looking Statements Certain statements in this release may be considered forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as "believes", "expects", "anticipates", "may", "will", "should", "seeks", "approximately", "intends", "projects," "plans", "estimates" or the negative of these words or other comparable terminology (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. Forward-looking statements are predictions, projections and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this release, including, without limitation, those risks associated with NeuroBo's ability to execute on its commercial strategy; the timeline for regulatory submissions; ability to obtain regulatory approval through the development steps of NeuroBo's current and future product candidates, the ability to realize the benefits of the license agreement with Dong-A ST Co. Ltd., including the impact on future financial and operating results of NeuroBo; the cooperation of our contract manufacturers, clinical study partners and others involved in the development of NeuroBo's current and future product candidates; potential negative interactions between our product candidates and any other products with which they are combined for treatment; NeuroBo's ability to initiate and complete clinical trials on a timely basis; our ability to recruit subjects for its clinical trials; whether NeuroBo receives results from NeuroBo's clinical trials that are consistent with the results of pre-clinical and previous clinical trials; impact of costs related to the license agreement, known and unknown, including costs of any litigation or regulatory actions relating to the license agreement; effects of changes in applicable laws or regulations; effects of changes to NeuroBo's stock price on the terms of the license agreement and any future fundraising; and other risks and uncertainties described in our filings with the SEC. Forward-looking statements speak only as of the date when made. NeuroBo does not assume any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. Contact: NeuroBo Pharmaceuticals Marshall H. Woodworth Chief Financial Officer +1-857-299-1033 [email protected] Rx Communications Group Michael Miller +1-917-633-6086 [email protected] SOURCE NeuroBo Pharmaceuticals, Inc.