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This presentation contains, in addition to historical information, forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to future events or future

Key Takeaway: Corporate Overview March 2019 NASDAQ: GALT www.galectintherapeutics.com Harold H. Shlevin, Ph.D. Chief Executive Officer Jack W. Callicutt Chief Financial Officer Exhibit 99.1 This presentation contains, in addition to historical information, forward-looking statements within

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Corporate Overview March 2019 NASDAQ:
GALT www.galectintherapeutics.com Harold H. Shlevin, Ph.D. Chief Executive Officer Jack W. Callicutt Chief Financial Officer Exhibit 99.1
This presentation contains, in addition
to historical information, 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" and others. They are based on our 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 potential therapeutic benefits of our drugs, expectations, plans and timelines related to our clinical trials, supporting activities, potential partnering opportunities and estimated spending for
2019 and beyond. Factors that could cause our actual performance to differ materially from those discussed in the forward-looking statements include, among others, our trials and supporting CMC information may not lead to positive outcomes or
regulatory approval. We may experience delays in our trials, which could include enrollment delays. Future phases or future clinical studies may not begin or produce positive results in a timely fashion, if at all, and could prove time consuming and
costly. Plans regarding development, approval and marketing of any of our drugs are subject to change at any time based on the changing needs of our company as determined by management and regulatory agencies. Strategies and spending projections may
change. We may be unsuccessful in developing partnerships with other companies or obtaining capital that would allow us to complete our clinical trials or further develop and/or fund any future studies or trials. To date, we have incurred operating
losses since our inception, and our future success may be impacted by our ability to manage costs and finance our continuing operations. For a discussion of additional factors impacting our business, see our Annual Report on Form 10-K for the year
ended December 31, 2018, and our subsequent filings with the SEC. You should not place undue reliance on forward-looking statements. Although subsequent events may cause our views to change, we disclaim any obligation to update forward-looking
statements. Forward-Looking Statements
Galectin is advancing its lead
compound, GR-MD-02 (belapectin), towards a Phase 3 trial in NASH Cirrhosis, First Patient ~ Fall, 2019 NASH market opportunity estimated to reach $35 - $40 Billion/Year by 2025* Proven biological activity in both Phase 2b and animal trials Phase 3
ready asset - target starting Fall, 2019 First randomized clinical trial of any drug to demonstrate statistically significant positive efficacy in compensated NASH cirrhosis without varices (NASH-CX trial) Demonstrated efficacy in a population
with a high degree of clinical unmet need with no available therapies and few in development GR-MD-02 is protected by a strong and robust IP portfolio of 77 granted and 27 pending patents across a broad group of human diseases through at least 2033
Cover composition of matter for complex carbohydrate drugs and/or various methods of use in treatment of fibrosis and other relevant diseases. Experienced Leadership * Deutsche Bank "NASH - the next big global epidemic in 10
years?" July 14, 2014 Galectin Summary
Investigating NASH cirrhosis, a
condition that is more closely linked to liver failure and its life-threatening implications than earlier stages of NASH Have engaged leading NASH experts to provide advice and counsel to strengthen our plan for the NASH-RX Phase 3 clinical trial
Type C Meeting with the FDA on February 6, 2019 discussed Galectin's proposal for use of progression to varices as the primary surrogate endpoint moving forward FDA supports use of progression to varices as a potential surrogate endpoint and
progression to large varices as a component of a composite clinical benefit endpoint pending additional requested information NASH cirrhosis patients with portal hypertension are at risk of developing esophageal varices which may bleed and exhibit
other decompensating events. Protocol is now in the process of finalization to provide meaningful clinical outcomes and address suggestions made by FDA First Patient First Visit target Fall, 2019; Top Line Data: Q4 2022 Galectin Phase 3 Trial
Over 34 years of relevant experience
Solvay Pharmaceuticals, CEO CIBA Vision Ophthalmics (n/k/a Novartis Vision), SVP & co-founder Tikvah Therapeutics, Founder and CEO CIBA-Geigy Pharmaceuticals Harold H. Shlevin, Ph.D., CEO and President Over 27 years of relevant experience Reach
Health, CFO, Vystar Corporation, CFO, Corautus Genetics, Deloitte Jack W. Callicutt, CFO Over 34 years of relevant experience: Koor Biotechnologies, Charm Sciences, Glycogenesis, HU Medical School (Jerusalem), and Harvard University Eli Zomer,
PhD, Pharm Development Over 30 years experience in clinical development, medical affairs & regulatory processes. UCB Inc., Abbott Laboratories, Solvay Pharmaceuticals Adam Allgood, Pharm D., Clinical Development Rex Horton, Regulatory Over 29
years of experience; Director Regulatory Affairs at Solvay Pharmaceuticals and Chelsea Therapeutics; Georgia Institute of Technology Head of regulation, quality assurance and manufacturing Strong, experienced management team
Contents General NASH Competitive
Landscape NASH Cirrhosis and GR-MD-02 Phase 2b Results Phase 3 plans Cancer Immunotherapy Combination Summary
Source: Torres DM, et al. Clin
Gastroenterol Hepatol. 2012;10:837-858. NASH Disease Progression
Industry Pipeline Is Relatively Less
Crowded in Cirrhotic NASH GR-MD-02 Uniquely Positioned
Contents General NASH Competitive
Landscape NASH Cirrhosis and GR-MD-02 Phase 2b Results Phase 3 plans Cancer Immunotherapy Combination Summary
Galectin is developing a compound
for the most serious stages of the disease Reprinted from: B Riley FBR Research, Feb., 2019
GR-MD-02 targets and disrupts the
function of galectin-3, which plays a major role in diseases that involve organ fibrosis Galectin proteins' ability to dimerize creates the opportunity for galectins to link glycoproteins and form a lattice structure on the cellular surface
and to promote cell-cell and cell-matrix interactions Galectin-3 expression is up-regulated in established human fibrotic liver disease, and disruption of Galectin-3 can markedly reduce liver fibrosis (*) * Source: Henderson et al., PNAS, 2006.
Central Role of Gal-3 in Multiple Pathological Processes
There is currently no treatment for
NASH cirrhosis, a progressive disease that can lead to significant mortality Fatty Liver NASH: Cell Death Inflammation Fibrosis 1 Garcia-Tsao, G., Friedman, S., Iredale, J., Prinzani, M. Hepatology. 2010;51:14451449 Compensated Cirrhosis
Decompensated Cirrhosis Stage 1 Stage 2 Stage 3 and 4 No Varices Varices Develop Bleeding, Ascites, Encephalopathy Low one year mortality (1-3%) ~50% one year mortality 6 >10 >12 Portal Pressure (mmHg) The majority of companies are
focused on pre-cirrhotic NASH Few companies with Phase 2/3 trials in NASH cirrhosis Unlike many companies in the NASH space, Galectin is focusing on the compensated cirrhotic patients
Unlike many companies in the NASH
space, Galectin is focusing on the compensated cirrhotic patients The majority of companies are focused on pre-cirrhotic NASH Few companies with Phase 2/3 trials in NASH cirrhosis Patients with NASH cirrhosis without varices are at high risk for
severe complications and have a high degree of unmet need Fatty Liver NASH: Cell Death Inflammation Fibrosis 1 Garcia-Tsao, G., Friedman, S., Iredale, J., Prinzani, M. Hepatology. 2010;51:14451449 Compensated Cirrhosis Decompensated Cirrhosis Stage
1 Stage 2 Stage 3 and 4 No Varices Varices Develop Bleeding, Ascites, Encephalopathy Low one year mortality (1-3%) ~50% one year mortality 6 >10 >12 Portal Pressure (mmHg) Significance of Targeting NASH Cirrhosis without Varices: Once
NASH progresses to cirrhosis, patients are at risk for severe complications, liver failure, and death and the condition is not reversible with lifestyle changes alone Presence/absence of varices is part of standard care for NASH patients and is
easily assessed by endoscopy, and an important goal of treatment of patients with Stage 1 is to prevent progression to varices and complications The only currently available therapy for NASH cirrhosis is liver transplant when clinical progression is
4 Liver-related complications
(varices/bleeding, ascites, hepatic encephalopathy, liver-related death, or transplant) Endpoints Baseline Week 54 Primary Endpoint Portal Pressure: HVPG2 Secondary Endpoints Liver Biopsy3 Endoscopy (varices)
Complications4 1 Subjects were enrolled across 36 sites in the US 2 HVPG = Hepatic Venous Pressure Gradient 3 Histologic staging & quantitative morphometry for collagen Major Inclusion Criteria NASH cirrhosis (biopsy) HVPG2
6 mmHg No cirrhosis complications No or small varices (50:50) Every other week infusion x 26 Treatment #Patients Placebo 54 GR-MD-02 2 mg/kg 54 GR-MD-02 8 mg/kg 54 Additional trial data on website NASH-CX was a randomized, double-blind,
placebo-controlled phase 2b clinical trial that enrolled 162 NASH cirrhosis patients1 Dosing and Administration Phase 2b Trial Design
The GR-MD-02 2 mg/kg group showed a
statistically significant reduction in HVPG from baseline to week 54 for patients without varices Placebo GR-MD-02 2 mg/kg GR-MD-02 8 mg/kg 13 9 8 10 11 12 n=33 Baseline Week 54 n=31 Baseline n=25 Week 54 n=23 n=23 Baseline n=22 Week 54 HVPG (mmHg)
Statistically significant effect of 2 mg/kg dose on change in HVPG at baseline Mean Change from Baseline to Week 541 0.8 mmHg -1.08 mmHg p = 0.01 0.15 mmHg ns 1 ITT with LOCF, ANCOVA with LSD Mean SEM
43% of patients without varices in
the GR-MD-02 2mg/kg group showed a 2 mmHg and 20% decrease from baseline compared to 13% in the placebo group p = 0.011 Placebo GR-MD-02 2 mg/kg 50% 10% 0% 4/31 20% 30% 40% 10/23 13% 44% 1 Chi Square High bar to demonstrating efficacy
that is contingent on clinically important reduction in HVPG from baseline Percentage of Patients Who Had a Clinically Relevant Reduction in HVPG With: 2 mmHg Decrease From Baseline AND 20% Decrease From Baseline
Patients in the 2 mg/kg treatment
group showed statistically significant improvement of liver cell death on liver biopsy1 Placebo GR-MD-02 2 mg/kg GR-MD-02 8 mg/kg p = 0.03 p = 0.09 0.4 0.2 0.0 -0.2 n=54 n=54 Mean SEM n=53 Change in Hepatocyte Ballooning Score at Week 54 In
the total population there was improvement in cell death, a critical feature of NASH 1 ITT population Ordinal Logistic Regression Analysis
Significantly fewer new varices
developed in treatment groups versus placebo, and no patients in the 2 mg/kg treatment group developed new varices Trial hit a clinically relevant endpoint related to patient outcomes 1 Chi Square Percent New Varices Formation Placebo GR-MD-02 2
mg/kg 6/33 0/25 p = 0.02 20 15 10 5 0
GR-MD-02 has demonstrated efficacy
in two clinically meaningful endpoints, where no current therapies exist Portal hypertension (PH) is a critical, clinically important consequence of cirrhosis and responsible for the majority of associated complications Portal pressures of 10
mmHg are associated with increased risk of decompensation, varices, hepatocellular carcinoma, and 1-year mortality For example, an HVPG 10 mmHg is associated with a 28% rate of varices development and a 20% rate of first decompensation at two
years Patients with an HVPG <10 mmHg have only a 10% chance of developing clinical decompensation (over median follow-up of 4 years) For patients with compensated cirrhosis and PH without varices, there are no specific therapies indicated for
reducing PH and/ or directly treating the underlying liver disease Beta-blockers are efficacious in improving outcomes in patients with portal hypertension and varices, but likely do not prevent development of varices/ slow disease progression in
early stage cirrhosis patients As a result, clinical guidelines in the US and EU do not recommend the use of beta-blockers for the prevention of variceal formation Further, Compensated cirrhosis patients with no major complications carry a median
survival of >12 years, but compensated patients with varices have a worse prognosis (3-fold higher one year mortality rates) Gastroenterology, 2007;133:481-488 HVPG 10 mmHg Sources: AASLD Practice Guidelines, Garcia-Tsao et al.
HEPATOLOGY, VOL. 65, NO. 1, 2017; La Mura et al. World J Hepatol 2015 April 8; 7(4): 688-695 Baveno guidelines; Ripoll et al. GASTROENTEROLOGY 2007;133:481-488; Brunt, Semin Liver Dis., 2004; 24; UpToDate; Cordon, World J Gastrointest Endosc.,
Portal Hypertension is the Main
Driver of Decompensation
GR-MD-02 was safe and well-tolerated
No differences between treatment groups in the number of patients with treatment emergent adverse events (AEs), grade 3/4 AEs, serious adverse events (SAE), or grade 3/4 laboratory abnormalities All but 2 SAEs were unrelated to study drug; 2
patients in 8 mg/kg group had SAEs that were possibly related to study drug 1 There was one death due to complications of a surgical procedure that was unrelated to study drug 3 There was a low patient dropout rate of 6% which suggests the drug was
well tolerated and patients were adherent to the regimen (only one patient was removed from study for an AE possibly related to study drug 2 ) 1 Two SAEs were determined by the PI to be possibly related to study drug (transient ischemic attack and
worsening of hyponatremia, both GR8); All others SAEs were felt to be unrelated to study drug 2 Possibly related to drug: spasmodic cough (1); Unrelated to study drug: esophageal variceal bleeding (2), sepsis (1), pancreatitis (1) 3 Pulmonary
embolism following hernia repair surgery, judged to be unrelated to study drug
Positive effects of GR-MD-02 shown
in a subset of patients in the NASH-CX trial has allowed the company to reach its current Phase 3 development trajectory After incorporating advice and guidance from the FDA, Galectin announced on May 14, 2018 that the Company is proceeding with
plans for a Phase 3 clinical trial program for GR-MD-02 in NASH cirrhosis This plan is essentially complete and was discussed with FDA at a February 6 2019 meeting; additional input expected from CRO and others Target Patient Population Patients
with NASH cirrhosis without esophageal varices FDA indicated its support of the potential use of progression to varices as a surrogate endpoint and progression to large varices (or to small varices with a weal) as a component of a composite clinical
benefit endpoint (subject to additional information) is supportive of the potential use a composite clinical benefit Phase 3 Trial Design Further details of the Phase 2b trial results are available on our website
Summary of GR-MD-02 in NASH
Cirrhosis NASH-CX is the first clinical trial to show positive results in compensated NASH cirrhosis without esophageal varices Clinically meaningful effect in reducing portal pressure in a subgroup of patients Improvement in liver cell death, a key
component of NASH Reduction in the development of new esophageal varices Drug was safe and well-tolerated Following leadership meeting with FDA in May 2018, determined to be Phase 3-ready FDA in Feb 2019 meeting indicated its support for progression
to varices as a surrogate endpoint and progression to large varices (or to small varices with a weal) as a component of a composite clinical benefit endpoint The presence of varices is part of Standard of Care for patients and can easily be assessed
with endoscopy 50% of cirrhotic NASH patients do not have varices when diagnosed Further awareness of NASH will lead to early diagnosis which will increase the number of patients without varices These results have propelled the development program
to Phase 3 in consultation with Key Opinion Leaders (KOL) and FDA
Contents General NASH Competitive
Landscape NASH Cirrhosis and GR-MD-02 Phase 2b Results Phase 3 plans Cancer Immunotherapy Combination Summary
The focus and goal of the
Last updated: Mar 21, 2019