Galectin Therapeutics Inc. (NASDAQ:GALT): Targeting Galectin-3 to Treat Liver Fibrosis and Cancer

Business Overview

Galectin Therapeutics Inc. (NASDAQ:GALT) is a clinical-stage biopharmaceutical company that is applying its expertise in galectin science and drug development to create new therapies for fibrotic diseases and cancer. The company's lead product candidate, belapectin, is a proprietary, patented galectin-3 inhibitor that has shown promise in preclinical and clinical studies for the treatment of liver fibrosis, severe skin disease, and certain cancer indications.

Galectin Therapeutics was founded in 2000 and is headquartered in Norcross, Georgia. The company's primary focus is on developing therapies that target galectin proteins, which are key mediators of biological and pathological functions. Galectin-3, in particular, has been shown to play a significant role in the progression of various diseases, including inflammatory conditions leading to organ scarring (e.g., liver, lung, kidney, and heart) and certain cancers.

The company's lead product candidate, belapectin, is a complex carbohydrate molecule that binds to and inhibits galectin-3. Preclinical studies have demonstrated that belapectin can reverse liver fibrosis and cirrhosis, and in clinical studies, it has been shown to decrease portal hypertension and prevent the development of esophageal varices, a serious complication of liver cirrhosis.

Galectin Therapeutics is currently focused on the development of belapectin for the treatment of non-alcoholic steatohepatitis (NASH) cirrhosis and certain cancer indications, such as advanced or metastatic head and neck cancer. The company has completed several Phase 1 and Phase 2 clinical trials with belapectin and is currently conducting a large, global Phase 2b/3 clinical trial, known as the NAVIGATE trial, evaluating the safety and efficacy of belapectin for the prevention of esophageal varices in patients with NASH cirrhosis.

Financials

Galectin Therapeutics is a clinical-stage company and has not generated any revenue to date. The company's primary source of funding has been through public and private offerings of debt and equity. As of March 31, 2024, the company had $23.6 million in unrestricted cash and cash equivalents, as well as $20 million remaining available under two lines of credit provided by the company's chairman.

For the fiscal year ended December 31, 2023, Galectin Therapeutics reported a net loss of $41.1 million and had no revenue. The company's annual operating cash flow and free cash flow were both -$32.9 million. These financial results reflect the company's ongoing investment in research and development activities, particularly the NAVIGATE clinical trial.

In the first quarter of 2024, Galectin Therapeutics reported a net loss of $11.5 million, with no revenue generated during the period. The company's quarterly operating cash flow and free cash flow were both -$12.1 million, primarily due to the continued investment in the NAVIGATE trial and other research and development activities.

Liquidity

As of March 31, 2024, Galectin Therapeutics had $23.6 million in unrestricted cash and cash equivalents, as well as $20 million remaining available under two lines of credit provided by the company's chairman. The company believes this cash, along with the available lines of credit, is sufficient to fund its currently planned operations at least through May 15, 2025.

To meet its future capital needs, Galectin Therapeutics intends to raise additional capital through debt or equity financings, collaborations, partnerships, or other strategic transactions. However, there can be no assurance that the company will be able to complete any such transactions on acceptable terms or otherwise.

Recent Developments

NASH Cirrhosis Program

Galectin Therapeutics' lead development program is focused on the use of belapectin for the treatment of NASH cirrhosis. The company has completed several clinical trials with belapectin in this indication, including the Phase 2 NASH-FX and NASH-CX trials.

The NASH-CX trial, a Phase 2 study in patients with compensated NASH cirrhosis and portal hypertension, demonstrated that belapectin was safe and well-tolerated, and showed a clinically meaningful effect in improving hepatic venous pressure gradient (HVPG) versus placebo in patients without esophageal varices at baseline. Importantly, the study also showed a statistically significant reduction in the development of new esophageal varices in the belapectin-treated groups compared to placebo.

Building on the NASH-CX results, Galectin Therapeutics is currently conducting the NAVIGATE trial, a large, global Phase 2b/3 clinical study evaluating the safety and efficacy of belapectin for the prevention of esophageal varices in patients with NASH cirrhosis. The NAVIGATE trial is an adaptively designed study that includes a Phase 2b interim analysis to confirm the previous Phase 2 data, select an optimal dose, and reaffirm the risk/benefit of belapectin. If the interim analysis results are positive, the study may seamlessly transition into a Phase 3 evaluation.

The final patient for the Phase 2b stage of the NAVIGATE trial was randomized in February 2023, and the company expects to report topline results from the interim analysis in late 2024. If the interim analysis is successful, Galectin Therapeutics believes there could be the potential for an accelerated FDA approval pathway or a partnership opportunity with a pharmaceutical company.

Cancer Immunotherapy Program

In addition to its focus on liver fibrosis, Galectin Therapeutics is also exploring the potential of belapectin in the field of cancer immunotherapy. Preclinical studies have shown that belapectin can enhance the immune system's response to certain types of cancer, including melanoma and head and neck squamous cell carcinoma (HNSCC), when combined with immune checkpoint inhibitors or other immune-stimulating agents.

Based on these promising preclinical results, Galectin Therapeutics has initiated a Phase 2 clinical trial evaluating belapectin in combination with a checkpoint inhibitor for the treatment of recurrent or metastatic HNSCC. The company filed an Investigational New Drug (IND) application with the FDA for this trial in the third quarter of 2022 and received a Study May Proceed letter, allowing the study to move forward. The commencement of this trial is dependent on the timing of additional financing.

Risks and Challenges

As a clinical-stage biopharmaceutical company, Galectin Therapeutics faces several risks and challenges, including:

  1. Uncertainty around the successful development and commercialization of its product candidates, particularly belapectin, which is the company's lead and only advanced product candidate.
  2. Reliance on external funding sources, such as debt and equity financings, to support its operations and clinical development activities.
  3. Potential delays or setbacks in its clinical trials, which could impact the company's ability to achieve its development milestones and timelines.
  4. Intense competition in the pharmaceutical and biotechnology industries, particularly in the areas of liver disease and cancer.
  5. Regulatory risks, as the company's product candidates will require approval from the FDA and other regulatory agencies before they can be commercialized.
  6. Potential intellectual property challenges or disputes that could impact the company's ability to protect its proprietary technologies and product candidates.

Outlook

Galectin Therapeutics is a promising clinical-stage biopharmaceutical company that is leveraging its expertise in galectin science to develop new therapies for fibrotic diseases and cancer. The company's lead product candidate, belapectin, has shown encouraging results in preclinical and clinical studies, particularly in the treatment of NASH cirrhosis and certain cancer indications.

The ongoing NAVIGATE trial, which is evaluating belapectin for the prevention of esophageal varices in NASH cirrhosis patients, is a critical milestone for the company. If the interim analysis results are positive, Galectin Therapeutics could have the opportunity to pursue an accelerated approval pathway or secure a partnership with a larger pharmaceutical company.

Additionally, the company's exploration of belapectin in the field of cancer immunotherapy, particularly in the treatment of HNSCC, represents another promising avenue for the company's development efforts. While Galectin Therapeutics faces several risks and challenges common to clinical-stage biopharmaceutical companies, the company's innovative approach to targeting galectin-3 and its promising pipeline of product candidates make it an intriguing investment opportunity for investors interested in the biotechnology sector.