Galectin Therapeutics Reports 2024 Financial Results and Provides Business Update NORCROSS, Ga.

Galectin Therapeutics Reports 2024 Financial Results and Provides Business Update

NORCROSS, Ga., May 15, 2025 (GLOBE NEWSWIRE) - Galectin Therapeutics, Inc. (NASDAQ: GALT), the leading developer of therapeutics that target galectin proteins, today reported financial results and provided a business update

for the three months ended March 31, 2025.

Joel Lewis, Chief Executive Officer and President of Galectin Therapeutics, stated "This quarter, we remained laser-focused on advancing

additional analyses for belapectin. I was extremely encouraged by the feedback we received last week at the European Association for the Study of the Liver (EASL), specifically that we successfully demonstrated a clinically significant response in a

key biomarker (Fibroscan ) that is used to support outcomes in MASH trials at every stage of disease progression. In December 2024, as part of the topline results from the NAVIGATE trial, we reported that the 2 mg/kg dose of belapectin led to a

significantly lower incidence of new varices compared to placebo in the per protocol population-validating the findings from our earlier Phase 2 study where 2 mg/kg dose showed significant reduction in portal pressure and new varices in cohort of

patients without varices at baseline.

Based on these results from the NAVIGATE trial presented at EASL, we continue to believe that belapectin has the potential to offer a much-needed new treatment option for

the growing number of patients with MASH-associated liver cirrhosis and portal hypertension - a significant area of unmet medical need."

Khurram Jamil, M.D., Chief Medical Officer, added "We were pleased to present the analysis of the NAVIGATE trial coupled with biomarker analysis to the scientific community

and industry stakeholders at EASL. We are particularly encouraged by the liver stiffness measure (LSM), which showed that approximately double the number of patients demonstrated worsening of liver stiffness on placebo compared to on belapectin. We

also showed that the difference in new varices between the 2 mg/kg dose and placebo was primarily driven by a reduction in medium and large varices, rather than small ones. This is relevant for clinicians since it's medium or large size varices that

are more likely to bleed and or require additional treatment. We also demonstrated that the proportion of patients who experienced a significant worsening of LSM were significantly higher in the placebo group compared to the 2 mg/kg belapectin group,

thus reinforcing the relationship between disease progression and development of varices.

These findings further support the potential clinical efficacy of belapectin. With Fast Track Designation in place, we are hopeful that the belapectin program will

ultimately deliver the first targeted treatment for patients with MASH cirrhosis and portal hypertension."

Mr. Lewis added, "We are pleased to share that after a complete analysis of all existing valid Fibroscan data, we observed several important findings. First, the total

baseline Fibroscan data was normally distributed (n=269). Additionally, the 2 mg/kg population (n=94) and the 4 mg/kg population (n=87) showed statistically significant changes from baseline on Fibroscan data, while the placebo population (n=88) did

not show a statistically significant change from baseline. Most importantly, on several clinical endpoints indicating increased severity of LSM worsening, the 2 mg/kg population significantly outperformed the placebo group (see below). We look

forward to sharing more biomarker data as it becomes available."

Belapectin Program Highlights

Belapectin is a complex carbohydrate drug that targets galectin-3, a critical protein in the pathogenesis of MASH and fibrosis.

Statistically significant reductions in liver stiffness from baseline were observed in the belapectin 2 mg/kg treatment arm at Week 26, Week 52 and Week

Belapectin 2 mg/kg (absolute kPa change from baseline)

This finding indicates that belapectin treatment may lead to regression of liver stiffness in this high-risk population, while placebo-treated patients

continued to show no improvement.

In addition, significantly fewer patients with >30% worsening in liver stiffness were observed in the 2 mg/kg belapectin groups compared to placebo:

Further, compared to the 2 mg/kg group, 64% more patients in the placebo group experienced an absolute increase in LSM of >10 kPa (p=0.02).

Additionally, 62.5% more patients in the placebo group experienced both worsening of > 10 kPa and >30% increase (p=0.04) over 18 months, thus reinforcing the progression of disease in the absence of treatment.

These thresholds of increases are clinically meaningful since they are based on published trials in MASH populations where categorical increases meeting

these thresholds result in significantly increased rates of liver complications.1

Q1 2025 Financial Highlights

1 Gawrieh S, Vilar-Gomez E,

Wilson LA, Pike F, Kleiner DE, Neuschwander-Tetri BA, Diehl AM, Dasarathy S, Kowdley KV, Hameed B, Tonascia J, Loomba R, Sanyal AJ, Chalasani N; NASH Clinical Research Network. Increases and decreases in liver stiffness measurement are independently

associated with the risk of liver-related events in NAFLD. J Hepatol. 2024 Oct;81(4):600-608. doi: 10.1016/j.jhep.2024.05.008. Epub 2024 May 16. PMID: 38762169; PMCID: PMC11410523.

Loomba R, Huang DQ, Sanyal AJ, et al Liver stiffness thresholds to predict disease progression and clinical outcomes in bridging fibrosis and cirrhosis Gut 2023;72:581-589.

van Doorn DJ, Holleboom AG, Takkenberg RB, Verheij J, Lantinga MA. Can liver stiffness measurement accurately predict disease progression and clinical outcome in patients

with metabolic dysfunction-associated steatotic liver disease and bridging fibrosis or cirrhosis? Hepatobiliary Surg Nutr. 2023 Dec 1;12(6):912-915. doi: 10.21037/hbsn-23-445. 2023 Oct 30. PMID: 38115935; PMCID: PMC10727830.

About Galectin Therapeutics

Galectin Therapeutics is dedicated to developing novel therapies to improve the lives of patients with chronic liver disease and cancer. Galectin's lead drug belapectin is

a carbohydrate-based drug that inhibits the galectin-3 protein, which is directly involved in multiple inflammatory, fibrotic, and malignant diseases, for which it has Fast Track designation by the U.S. Food and Drug Administration. The lead

development program is in metabolic dysfunction-associated steatohepatitis (MASH) with cirrhosis, the most advanced form of MASH-related fibrosis. Liver cirrhosis is one of the most pressing medical need

and a significant drug development opportunity. Additional development programs are in treatment of combination immunotherapy for advanced head and neck cancers and other malignancies. Advancement of these additional clinical programs is largely

dependent on finding a suitable partner. Galectin seeks to leverage extensive scientific and development expertise as well as established relationships with external sources to achieve cost-effective and efficient development. Additional information

is available at www.galectintherapeutics.com.

Forward Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements

relate to future events or future financial performance, and use words such as "may," "estimate," "could," "expect", "look forward", "believe", "hope" and others. They are based on management's current expectations and are subject to factors and

uncertainties that could cause actual results to differ materially from those described in the statements. These statements include those regarding the hope that Galectin's development program for belapectin will lead to the first therapy for the

treatment of MASH with cirrhosis and those regarding the hope that our lead compounds will be successful in cancer immunotherapy and in other therapeutic indications. Factors that could cause actual performance to differ materially from those

discussed in the forward-looking statements include, among others, full analysis of the NAVIGATE trial data may not product positive data; Galectin may not be successful in developing effective treatments and/or obtaining the requisite approvals for

the use of belapectin or any of its other drugs in development; the Company may not be successful in scaling up manufacturing and meeting requirements related to chemistry, manufacturing and control matters; the Company's current clinical trial and

any future clinical studies may not produce positive results in a timely fashion, if at all, and could require larger and longer trials, which would be time consuming and costly; plans regarding development, approval and marketing of any of

Galectin's drugs are subject to change at any time based on the changing needs of the Company as determined by management and regulatory agencies; regardless of the results of any of its development programs, Galectin may be unsuccessful in

developing partnerships with other companies or raising additional capital that would allow it to further develop and/or fund any studies or trials. Galectin has incurred operating losses since inception, and its ability to successfully develop and

market drugs may be impacted by its ability to manage costs and finance continuing operations. For a discussion of additional factors impacting Galectin's business, see the Company's Annual Report on Form 10-K for the year ended December 31, 2024,

and subsequent filings with the SEC. You should not place undue reliance on forward-looking statements. Although subsequent events may cause its views to change, management disclaims any obligation to update forward-looking statements.

Jack Callicutt, Chief Financial Officer

Investors Relations Contacts:

Galectin Therapeutics and its associated logo is a registered trademark of Galectin Therapeutics Inc. Belapectin is the USAN assigned name for Galectin

Therapeutics' galectin-3 inhibitor belapectin.

Condensed Consolidated Statements of Operations

Condensed Consolidated Balance Sheet Data