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Study Evaluating the Efficacy and Safety of Belapectin for the Prevention of Esophageal Varices in NASH Cirrhosis

A Seamless, Adaptive, Phase 2b/3, Double-Blind, Randomized, Placebo-controlled, Multicenter, International Study Evaluating the Efficacy and Safety of Belapectin (GR MD-02) for the Prevention of Esophageal Varices in NASH Cirrhosis

Status
Terminated
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04365868
Acronym
NAVIGATE
Enrollment
357
Registered
2020-04-28
Start date
2020-06-25
Completion date
2025-04-10
Last updated
2026-06-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cirrhosis, NASH - Nonalcoholic Steatohepatitis, Prevention of Esophageal Varices

Keywords

esophageal varices, belapectin, GR-MD-02, portal hypertension, nonalcoholic steatohepatitis (NASH) cirrhosis, NASH, cirrhosis

Brief summary

This seamless, adaptive, two-stage, Phase 2b/3, randomized, double-blind, multicenter, parallel-groups, placebo-controlled study will assess the efficacy, safety, and tolerability of belapectin compared with placebo in patients with nonalcoholic steatohepatitis (NASH) cirrhosis and clinical signs of portal hypertension but without esophageal varices at baseline.

Interventions

intravenous

DRUGPlacebo

intravenous

Sponsors

Galectin Therapeutics Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Each subject must meet all of the following criteria to be enrolled in this study: 1. Is male or female, ≥ 18 and ≤ 75 years of age at the time of Screening. 2. Is willing and able to provide written informed consent prior to the initiation of any study-specific procedures. 3. Has evidence of portal hypertension, with either one of the following: 1. platelet count \<150,000/mm3 OR 2. documented hepatic venous pressure gradient (HVPG) measurement \>6 mmHg OR 3. at least two of the following: * spleen size ≥14 cm (documented by ultrasound, MRI, or CT scan) * abdominal collateral circulation (documented by ultrasound, MRI, or CT scan or physical examination, ie, caput medusae) * documented liver transient elastography (eg, FibroScan) ≥20 kilopascals (kPa). * aspartate aminotransferase (AST)/alanine aminotransferase (ALT) \>1. 4. Has a history confirming nonalcoholic steatohepatitis (NASH) cirrhosis, with at least one of the following: * There is a historical liver biopsy showing cirrhosis with steatohepatitis. There is no evidence for a competing etiology for the cirrhosis. * There is a historical liver biopsy showing steatohepatitis, and there is evidence of cirrhosis from clinical or imaging data or a second liver biopsy showing cirrhosis without all features of NASH (as the histological NASH lesions may have burnt out). There is no evidence for a competing etiology. There is at least 1 co-existing metabolic comorbidity at Screening: obesity (with either body mass index \[BMI\] ≥30 kg/m2 or waist circumference ≥102 cm \[40 in, men\] or ≥88 cm \[35 in, women\], or by ethnically appropriate cutpoints); hypertension (either on anti hypertensive drug therapy for at least 1 year or systolic/diastolic blood pressure (BP) \>140/80 mm Hg); Type 2 diabetes (glycated hemoglobin \[HbA1c\] ≥6.5%, or on anti-diabetic medication for at least 1 year); or dyslipidemia (triglycerides ≥150 mg/dL or on drug therapy for hypertriglyceridemia for at least 6 months; high-density lipoprotein cholesterol ≤40 mg/dL \[men\] or ≤50 mg/dL \[women\]) to corroborate a diagnosis of nonalcoholic fatty liver disease (NAFLD). * There is a historical liver biopsy showing cirrhosis with steatosis but not steatohepatitis. There is no evidence for a competing etiology. There are at least 2 co-existing (or history of) metabolic comorbidities (with obesity or diabetes being one of them) to corroborate a diagnosis of NAFLD. * There is a historical liver biopsy showing steatosis but now with cirrhosis either by clinical examination, imaging, or biopsy. If there is a current biopsy, it does not show evidence of steatosis or steatohepatitis as histological lesions may have burned out. There is no evidence for a competing etiology. There are at least 2 co existing (or history of) metabolic comorbidities (with obesity or diabetes being one of them) to corroborate a diagnosis of NAFLD. * Patient with cirrhosis with current or previous imaging showing steatosis. There is no liver histology available. There is no evidence for a competing etiology. There are at least two co-existing or history of metabolic comorbidities with obesity or diabetes being one of them to corroborate a diagnosis of NAFLD. * For patients not meeting the above mentioned criteria, a screening liver biopsy is necessary. Note: All liver biopsy blocks and/or slides for eligibility assessments (including those from historical biopsies) will be reviewed by the central study pathologist while the subject is in Screening. Results from the central study pathologist must be available before the subject is randomized. 5. Absence of hepatocellular carcinoma (HCC) by valid imaging (eg, ultrasound, CT scan, or MRI) within 6 months prior to randomization. If no such imaging result is available, then ultrasound imaging should be performed as part of standard of care. 6. Patients with diabetes mellitus can be enrolled, if they are adequately controlled on a stable dose or doses of antidiabetic medication(s) for at least 3 months before Screening, and their screening HbA1c is ≤9.5%. 7. Patients on vitamin E or pioglitazone can be enrolled if they are on a stable dose and regimen for at least 3 months before screening, and the dose is expected to be held constant during the trial. 8. Patients on a statin can be enrolled if they are on a stable regimen for at least 3 months before Screening, and expected to be held stable during the trial. 9. Is not pregnant and must have a negative serum pregnancy test result prior to randomization. 10. Is of non-childbearing potential or if a fertile man or woman participating in heterosexual relations, agrees to use two acceptable means of contraception (ie, 2 effective methods of contraception, one of which must be a physical barrier method \[eg, male or female condom, diaphragm\] when combined with a highly effective method of contraception \[ie, a method with a failure rate of \<1% per year when used consistently and correctly\]) throughout his/her participation in this study and for 90 days after discontinuation of study treatment. Highly effective forms of contraception include: * combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (such as oral, intravaginal, transdermal) methods * progestogen-only hormonal contraception associated with inhibition of ovulation (such as oral, injectable, implantable) * hormone-releasing intrauterine system (IUS) * intrauterine device (IUD) * bilateral tubal occlusion * a vasectomized partner, provided that partner is the sole sexual partner of the women of childbearing potential trial participant and that the vasectomized partner has received medical assessment of the surgical success * sexual abstinence (ie, a refraining from heterosexual intercourse during the entire period of the clinical trial, if it is the preferred and usual lifestyle of the subject). Surgically sterile males and females are not required to use contraception provided they have been considered surgically sterile for at least 6 months. Surgical sterility includes history of surgically successful vasectomy, hysterectomy, or bilateral salpingo-oophorectomy. Postmenopausal women who have been amenorrheic for at least 2 years at the time of Screening will be considered sterile. 11. If a lactating woman, agrees to discontinue nursing before the start of study treatment and refrain from nursing until 90 days after the last dose of study treatment. 12. If a man, agrees to refrain from sperm donation throughout the study period and for a period of 90 days following the last dose of investigational medicinal product (IMP). Female subjects may not begin a cycle of ova donation or harvest throughout the study period and for a period of 90 days following the last dose of IMP.

Exclusion criteria

Subjects meeting any of the following criteria will be excluded from the study: 1. Presence of esophageal, gastroesophageal, or isolated gastric varices, based on an upper gastrointestinal (GI) esophagogastroduodenoscopy (EGD) exam conducted during Screening. Patients with portal hypertensive gastropathy could be enrolled. 2. History of hepatic cirrhosis decompensation including any episode of variceal bleeding, ascites not controlled by medication, spontaneous bacterial peritonitis or overt hepatic encephalopathy (West Haven grade ≥2 as assessed by the principal investigator), OR develops signs of hepatic cirrhosis decompensation during Screening. 3. Known or suspected abuse of alcohol (\>20 g/day for women or \>30 g/day for men \[on average per day\]), as per medical history. Significant alcohol consumption is defined as more than 20 grams per day in females and more than 30 grams per day in males. On average, a standard drink in the United States is considered to be 14 grams of alcohol, equivalent to 12 fluid ounces of regular beer (5% alcohol), 5 fluid ounces of table wine (12% alcohol), or 1.5 fluid ounces of 80 proof spirits (40% alcohol). 4. Alcohol dependence (ie, a score \>8 on the Alcohol Use Disorders Identification Test) 5. Narcotics or any other drug abuse or dependence in the last 5 years 6. Prior trans-jugular intrahepatic portal-systemic (TIPS) shunt procedure 7. Documented causes of liver disease other than NASH, including but not restricted to: * Viral hepatitis, unless eradicated at least 3 years prior to Screening * acute hepatitis A infection (presence of hepatitis A immunoglobulin M \[IgM\] at Screening) * positive hepatitis B surface antigen * positive hepatitis C virus (HCV) ribonucleic acid (to be performed prior to randomization in case of positive HCV antibody) * Documented drug-induced liver disease * Alcoholic liver disease * Autoimmune hepatitis * Wilson's disease * Hemochromatosis * Primary biliary cholangitis * Primary sclerosing cholangitis * Genetic hemochromatosis * History or planned liver transplantation * Alpha-1 antitrypsin deficiency 8. History of human immunodeficiency virus (HIV), or positive HIV test at Screening 9. Any of the following test or score: * serum alanine aminotransferase (ALT) \> 5 × upper limit of normal (ULN)\* * serum aspartate aminotransferase (AST) \> 5 × ULN\* \*Screening values will be obtained at Screening Visit 1 (SV1) and Screening Visit 2(SV2) (which will be separated by 2 to 4 weeks). A second screening value that is \>50% higher than the first value should prompt re-evaluation of the severity of the underlying liver disease and eligibility for this trial. If a transaminase level at SV2 is \>33% different from the level at SV1, then additional measurements should be performed at Screening Visit 3 (SV3). In such cases, the baseline transaminase levels will be established for subjects using the mean value of 4 evaluations \[ie, at SV1, SV2, SV3, and Baseline (ie, pre-dose during Visit 1)\]. * serum alkaline phosphatase (ALP) \> 2 × ULN * mean platelet count \< 50,000/mm3 * total bilirubin ≥ 2.0 mg/dL (subjects with a documented history of Gilbert's syndrome can be enrolled if the direct bilirubin is within normal reference range) * model for end-stage liver disease (MELD) score ≥12 * Child-Turcotte-Pugh (CTP) Score ≥7 Note: Following Phase 2b, subjects with CTP scores ≥7 may be enrolled if recommended\* by the Data Safety Monitoring Board (DSMB) and approved by the Trial Steering Committee (TSC), based on the planned interim analysis (IA). \[\*based on DSMB review of preliminary results from a separate hepatic impairment clinical trial (Study GT-032) which is assessing belapectin safety and pharmacokinetic (PK) in cirrhotic subjects with CTP scores ≥7. * estimated glomerular filtration rate \< 45 mL/min\* \*Note: per Modification of Diet in Renal Disease algorithm 10. Taking an angiotensin converting enzyme inhibitor, angiotensin II receptor blocker, or β-1 selective adrenergic receptor inhibitor, unless on a stable regimen for at least 3 months prior to Screening and no changes in the regimen are anticipated during the study. Subjects taking a non-selective beta blocker are not eligible to be enrolled (Investigators are encouraged to substitute another medication, if clinically warranted). 11. History of major surgery during Screening. 12. History of a solid organ transplant requiring immunosuppressive therapy. 13. History of bariatric surgery within 1 year of randomization, or plan to undergo bariatric surgery during the study. 14. Has positive screening test for illicit drugs of abuse at Screening. 15. Has participated in an investigational new drug study within 30 days or 5 half-lives whichever is longer, prior to randomization. 16. Has a history of malignancy within 5 years of randomization, except for basal cell carcinoma, squamous cell carcinoma, and adequately treated in situ uterine cervical cancer. 17. Has clinically significant cardiovascular disease (eg, uncontrolled hypertension, myocardial infarction, unstable angina), New York Heart Association Grade II or greater congestive heart failure, serious cardiac arrhythmia requiring intervention (eg, pacemaker/ablation) or Grade II or greater peripheral vascular disease. 18. Has a history of clinically significant hematologic, renal, hepatic, pulmonary, neurological, psychiatric, gastrointestinal, systemic inflammatory, metabolic or endocrine disorder or any other condition that, in the opinion of the Investigator, renders the subject a poor candidate for inclusion into the study. 19. Has known allergies to the IMP or any of its excipients. 20. Has previously received belapectin within 6 months of randomization. 21. Is an employee or family member of the Investigator or study center personnel.

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Patients in the Belapectin Treatment Groups Who Develop New Esophageal Varices at 78 Weeks [18 Months] of Treatment Compared to PlaceboAt 78 weeks [18 months]Proportion of patients in the belapectin treatment groups who develop new esophageal varices at 78 weeks \[18 months\] of treatment compared to placebo.

Secondary

MeasureTime frameDescription
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Spontaneous Bacterial PeritonitisThrough study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, spontaneous bacterial peritonitis by week 78.
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Overt Hepatic Encephalopathy (West Haven Score ≥2 and Requiring Hospitalization)Through study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, overt hepatic encephalopathy (West Haven score ≥2 and requiring hospitalization) by week 78.
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Child-Turcotte-Pugh (CTP) Score Increase of ≥2 Points (From Baseline)Through study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, Child-Turcotte-Pugh (CTP) score increase of ≥2 points (from baseline) by week 78.
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Model for End-stage Liver Disease (MELD) Score Increase to ≥15 as Measured on 2 Consecutive OccasionsThrough study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, model for end-stage liver disease (MELD) score increase to ≥15 as measured on 2 consecutive occasions by week 78.
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Liver TransplantThrough study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, liver transplant by week 78.
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Liver-related DeathThrough study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, liver-related death by week 78.
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Treatment Groups, Compared to Placebo, Who Develop Varices (Esophageal or Gastric) Requiring TreatmentThrough study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin treatment groups, compared to placebo, who develop varices (esophageal or gastric) requiring treatment.
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Treatment Groups, Compared to Placebo, Who Develop Variceal Bleed Requiring HospitalizationThrough study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin treatment groups, compared to placebo, who develop variceal bleed requiring hospitalization.
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Treatment Groups, Compared to Placebo, Who Develop Clinically Significant Ascites Requiring HospitalizationThrough study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin treatment groups, compared to placebo, who develop clinically significant ascites requiring hospitalization.
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Treatment Groups, Compared to Placebo, Who Develop Spontaneous Bacterial PeritonitisThrough study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin treatment groups, compared to placebo, who develop spontaneous bacterial peritonitis.
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Treatment Groups, Compared to Placebo, Who Develop Hepatic Encephalopathy (West Haven Score ≥2 and Requiring Hospitalization)Through study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin treatment groups, compared to placebo, who develop hepatic encephalopathy (West Haven score ≥2 and requiring hospitalization).
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Treatment Groups, Compared to Placebo, Who Develop Mortality (All-cause)Through study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin treatment groups, compared to placebo, who develop mortality (all-cause).
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Treatment Groups, Compared to Placebo, Who Develop Liver TransplantThrough study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin treatment groups, compared to placebo, who develop liver transplant.
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Treatment Groups, Compared to Placebo, Who Develop Model for End-stage Liver Disease (MELD) Score ≥15Through study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin treatment groups, compared to placebo, who develop model for end-stage liver disease (MELD) score ≥15.
Efficacy: Cumulative Incidence Rate of Patients in the Belapectin Phase 3 Treatment Group Who Progress to Large Varices (Gastric or Esophageal) or Develop Red Wales Compared to Placebo.Through study end, 78 weeks or 156 weeksEfficacy: Cumulative incidence rate of patients in the belapectin Phase 3 treatment group who progress to large varices (gastric or esophageal) or develop red wales compared to placebo.
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Progression to Large Varices or Red WalesThrough study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, progression to large varices or red wales by week 78.
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Clinically Significant Ascites Requiring HospitalizationThrough study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, clinically significant ascites requiring hospitalization by week 78.
Efficacy: Event-free Survival by Time to First Cirrhosis Related Clinical Event, Esophageal Variceal Hemorrhage Requiring HospitalizationThrough study end, 78 weeks or 156 weeksNumber of participants who experienced first cirrhosis related clinical event, esophageal variceal hemorrhage requiring hospitalization by week 78.

Countries

Argentina, Australia, Belgium, Canada, Chile, France, Germany, Israel, Mexico, Poland, Puerto Rico, South Korea, Spain, United Kingdom, United States

Contacts

STUDY_DIRECTORKhurram Jamil, M.D.

Galectin Therapeutics Inc.

Participant flow

Recruitment details

Participants were randomized in a 1:1:1 ratio to one of the following treatment arms: Belapectin 2 mg/kg LBM, Belapectin 4 mg/kg LBM, Placebo. Randomization was stratified by type 2 diabetes. The trial incorporated a pre-planned seamless adaptive structure consisting of 2 stages: • Stage 1 (Phase 2b) • Stage 2 (Phase 3). Following FDA discussions, the Sponsor stopped the trial in January 2026, before Stage 2 was initiated. All the results reported here are for Stage 1 18-month time point.

Pre-assignment details

Following FDA discussions, the Sponsor stopped the trial in January 2026, before Stage 2 (Phase 3) was initiated. All the results reported here are for Stage 1 (Phase 2b) 18-month time point.

Baseline characteristics

Characteristic
Age, Continuous60.4 Years
STANDARD_DEVIATION 8.5
Body Mass Index (BMI) kg/m234.41 kg/m2
STANDARD_DEVIATION 6.458
GLP-1 Agonist-Yes24 Participants
Hypertension89 Participants
Liver Stiffness24.22 kPa
STANDARD_DEVIATION 12.179
Model End Stage Liver Disease Score (MELD)7.7 MELD Score
STANDARD_DEVIATION 1.94
NASH Cirrhosis Diagnosis
1A
150 Participants
NASH Cirrhosis Diagnosis
1B
33 Participants
NASH Cirrhosis Diagnosis
1C
46 Participants
NASH Cirrhosis Diagnosis
2A
7 Participants
NASH Cirrhosis Diagnosis
2B
37 Participants
NASH Cirrhosis Diagnosis
Missing
2 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
6 Participants
Race/Ethnicity, Customized
Asian
9 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants
Race/Ethnicity, Customized
Other
2 Participants
Race/Ethnicity, Customized
White
111 Participants
Region of Enrollment
Argentina
5 Participants
Region of Enrollment
Australia
5 Participants
Region of Enrollment
Belgium
4 Participants
Region of Enrollment
Canada
2 Participants
Region of Enrollment
Chile
0 Participants
Region of Enrollment
France
2 Participants
Region of Enrollment
Germany
3 Participants
Region of Enrollment
Israel
4 Participants
Region of Enrollment
Mexico
10 Participants
Region of Enrollment
Poland
0 Participants
Region of Enrollment
South Korea
2 Participants
Region of Enrollment
Spain
3 Participants
Region of Enrollment
United Kingdom
1 Participants
Region of Enrollment
United States
79 Participants
Sex: Female, Male
Female
72 Participants
Sex: Female, Male
Male
46 Participants
Statin-Yes151 Participants
Weight94.2 kg
STANDARD_DEVIATION 21.68

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
2 / 1185 / 1191 / 120
other
Total, other adverse events
112 / 118116 / 119117 / 120
serious
Total, serious adverse events
24 / 11829 / 11926 / 120

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 1, 2026