Company Description
TriSalus Life Sciences, Inc. (Nasdaq: TLSI) is an oncology-focused medical technology company that concentrates on improving treatment for patients with solid tumors and other difficult-to-treat conditions. According to the company’s public disclosures, its platform combines proprietary drug delivery devices with standard-of-care therapies and a clinical-stage investigational immunotherapy, nelitolimod, a class C Toll-like receptor 9 (TLR9) agonist. TriSalus positions its technology to address challenges that limit the effectiveness of many existing therapies, particularly in liver, pancreatic and other solid tumor settings.
The company reports that its platform includes devices that utilize a proprietary Pressure-Enabled Drug Delivery™ (PEDD™) approach and an investigational immunotherapy. Multiple press releases describe TriSalus as a growing oncology-focused medical technology business that is also exploring applications in non-oncologic conditions where targeted embolization and drug delivery may be beneficial.
Pressure-Enabled Drug Delivery (PEDD) Technology
TriSalus states that its PEDD technology is a novel delivery approach designed to overcome anatomical and physiological barriers that can limit therapeutic delivery. Company materials explain that PEDD modulates pressure and flow during infusion in a way that is intended to deliver more therapeutic agent to the tumor while reducing undesired delivery to normal tissue. This approach is described as particularly relevant for organs such as the liver and pancreas, where high intratumoral pressure, collapsed vasculature and immunosuppressive tumor microenvironments can interfere with effective treatment.
In its descriptions of an “organ-specific platform,” TriSalus highlights two key obstacles it is designed to address: high intratumoral pressure caused by tumor growth and collapsed vasculature, and the immunosuppressive properties of liver and pancreatic tumor immune cells. By systematically targeting these barriers, the company aims to improve response to therapies and enable better patient outcomes.
TriNav Infusion System and Related Devices
TriSalus reports that it has developed FDA-cleared devices that incorporate its PEDD technology. Across multiple releases, the company describes the TriNav® Infusion System as a device for hepatic arterial infusion of liver tumors, and the TriNav Infusion System LV as a variant for hepatic arterial infusion of liver tumors as well. The company also cites a Pancreatic Retrograde Venous Infusion System for pancreatic tumors. These devices are described as using the PEDD approach to deliver a range of therapeutics directly to targeted tissue.
TriSalus also references the launch of TriNav® FLX, which it characterizes as an advancement in its PEDD-based portfolio designed to improve navigability in tortuous vessels. Company commentary notes that TriNav is used in liver embolization and that the PEDD approach is being evaluated in additional embolization applications, including thyroid artery embolization and uterine artery embolization, as described in clinical and key opinion leader event announcements.
Applications in Solid Tumors and Benign Disease
In its public statements, TriSalus consistently describes itself as focused on solid tumors, particularly in the liver and pancreas. The company also notes that its technology is being evaluated in other clinical settings. For example, TriSalus has highlighted investigator-published data on Pressure-Enabled Thyroid Artery Embolization (PED-TAE) using the TriNav Infusion System for symptomatic thyroid disease, including benign thyroid nodules and multinodular goiters. The company states that this minimally invasive technique targets the inferior thyroid arteries to reduce gland size and alleviate symptoms in patients who are not candidates for surgery or conventional therapies.
TriSalus has also announced a clinical trial evaluating genicular artery embolization (GAE) as a potential treatment for knee osteoarthritis, and has discussed the use of its PEDD approach in uterine artery embolization for uterine fibroids. In these communications, the company characterizes itself as bringing its drug delivery technology to both oncologic and non-oncologic conditions where embolization and targeted delivery may offer therapeutic benefit.
Nelitolimod Investigational Immunotherapy
Alongside its devices, TriSalus is developing nelitolimod, a clinical-stage investigational immunotherapeutic candidate described as a class C TLR9 agonist. Company materials state that nelitolimod is designed to treat or improve the immunosuppressive environment created by many tumors, which can render existing immunotherapies ineffective in organs such as the liver and pancreas. TriSalus reports that nelitolimod is being evaluated in Pressure-Enabled Regional Immuno-Oncology™ (PERIO) phase 1 clinical trials where it is delivered via PEDD technology.
The company notes that patient data generated during PERIO clinical trials support the hypothesis that nelitolimod delivered via PEDD may have favorable immune effects within the liver and systemically. It also emphasizes that TLR9, the target of nelitolimod, is expressed across cancer types and that the mechanical barriers addressed by PEDD are commonly present in solid tumors. TriSalus has indicated that it is in the final stages of data completion for several phase 1 trials and plans to explore partnership opportunities for further development.
Commercial Focus and Clinical Adoption
In recent financial updates, TriSalus has described “strong commercial performance” and “growing clinical adoption” of its TriNav product suite and PEDD platform across a broad range of solid tumor indications, with particular emphasis on liver-directed therapies. The company attributes revenue growth to increased use of TriNav in liver embolization and expansion into new embolization applications. It also notes that its commercial efforts are focused on the interventional radiology specialty and that it is investing in registry and other clinical programs to build a data-driven case for expanding PEDD technology into additional clinical settings.
TriSalus has characterized itself as working in partnership with leading cancer centers across the United States and as leveraging immuno-oncology expertise and technology development capabilities. These collaborations are described as supporting both the clinical evaluation of PEDD-based approaches and the broader adoption of its devices in practice.
Capital Structure, Exchange Offer and Emerging Growth Status
TriSalus identifies as an emerging growth company under U.S. securities regulations in multiple Form 8-K filings. In 2025, the company reported an exchange offer and consent solicitation related to its Series A Convertible Preferred Stock, along with a subsequent amendment to the certificate of designations and conversion of preferred shares into common stock. The company has also disclosed actions by its board and compensation committee, including adjustments to executive compensation and equity awards that are tied to achieving specified revenue levels over a defined period.
These filings, together with periodic earnings releases, provide insight into the company’s capital structure, financing strategy and governance decisions, but they do not alter the core description of TriSalus as an oncology-focused medical technology company built around PEDD devices and an investigational immunotherapy.
Position Within Biotechnology and Medical Technology
Within the broader biotechnology and medical technology landscape, TriSalus describes itself as operating at the intersection of drug delivery, interventional oncology and immuno-oncology. Its disclosures emphasize device-based delivery systems integrated with pharmacologic agents, rather than stand-alone therapeutics. The company’s focus on overcoming physical and immunologic barriers in solid tumors, particularly in the liver and pancreas, differentiates its stated approach from more generalized drug development strategies.
TriSalus’ communications consistently highlight its goal of improving therapeutic delivery and clinical outcomes by tailoring both the route and pressure of drug administration, and by pairing this with an immunotherapeutic designed to modify the tumor microenvironment. This combination of device technology and immunotherapy development defines the core of the company’s business model as presented in its public materials.
FAQs About TriSalus Life Sciences (TLSI)
- What does TriSalus Life Sciences, Inc. do?
TriSalus Life Sciences, Inc. is described in its public statements as an oncology-focused medical technology company. It develops and commercializes devices that use its proprietary Pressure-Enabled Drug Delivery (PEDD) technology and is advancing an investigational immunotherapeutic, nelitolimod, with the aim of improving treatment for patients with solid tumors and certain non-oncologic conditions. - What is Pressure-Enabled Drug Delivery (PEDD)?
According to TriSalus, PEDD is a proprietary drug delivery approach that modulates pressure and flow during infusion to deliver more therapeutic agent to targeted tissue while reducing delivery to normal tissue. The company states that this method is designed to address anatomical limitations and high intratumoral pressure that can restrict effective therapy, particularly in organs such as the liver and pancreas. - What are the main devices in the TriSalus platform?
Company disclosures describe three FDA-cleared devices that use the PEDD approach: the TriNav Infusion System and TriNav Infusion System LV for hepatic arterial infusion of liver tumors, and the Pancreatic Retrograde Venous Infusion System for pancreatic tumors. TriSalus has also announced TriNav FLX as an advancement in its PEDD-based product portfolio. - What is nelitolimod and how is it used?
Nelitolimod is described by TriSalus as a clinical-stage investigational immunotherapy and a class C TLR9 agonist. The company states that it is designed to address the immunosuppressive tumor microenvironment in organs such as the liver and pancreas and is being evaluated in PERIO phase 1 clinical trials where it is delivered using the PEDD technology. - Which diseases and conditions is TriSalus targeting?
In its public communications, TriSalus highlights applications in liver tumors, pancreatic tumors and other solid tumors. It also describes work in benign thyroid disease through pressure-enabled thyroid artery embolization, uterine fibroids via uterine artery embolization, and knee osteoarthritis through genicular artery embolization, reflecting both oncologic and non-oncologic uses of its PEDD platform. - How does TriSalus describe its collaboration with clinicians and centers?
The company states that it works in partnership with leading cancer centers across the United States and collaborates with interventional radiologists and other specialists. These collaborations support clinical trials, registry studies and evaluation of new embolization applications for its PEDD-based devices. - What is TriSalus’s stock exchange listing and status?
TriSalus Life Sciences, Inc. is identified in its press releases and SEC filings as trading on Nasdaq under the ticker symbol TLSI. The company indicates in multiple Form 8-K filings that it is an emerging growth company under applicable U.S. securities regulations. - How does TriSalus describe its financial trajectory?
In recent earnings-related press releases, TriSalus has reported revenue growth associated with increased use of its TriNav system and PEDD platform in liver-directed therapies and other applications. The company’s communications link this growth to expanding clinical adoption and increased commercial activity, while also noting ongoing investments in clinical data and platform expansion.