VLU

The goal of this clinical trial is to learn if Borate-based Bioactive Glass Fiber Matrix (BBGFM) can help heal Venous Leg Ulcers (VLU) that have not closed with standard treatment. The main question it aims to answer is: 1\. Does BBGFM help Venus Leg Ulcers heal completely in 12 weeks? Researchers will compare BBGFM plus Standard of Care (SOC) to SOC alone to see if BBGFM works to heal wounds. Participants will: * Have BBGFM applied to their wound (if assigned to the BBGFM group) for up to 12 applications * Visit the clinic each week for wound checks and tests Other study purposes include looking at: * The time it takes for the wound to heal * Changes in wound size over time * The durability of wound healing after closure * The use of healthcare resources related to wound care * Any adverse events (side effects) or reactions related to the treatment * Changes in pain levels * Changes in quality of life

This research study is investigating a new topical medication called LUT017, which is being developed to help heal chronic skin wounds, particularly those known as venous leg ulcers (VLUs). VLUs are open sores that commonly occur on the lower legs due to poor blood flow in the veins. These wounds can be painful, slow to heal, and difficult to treat, especially in older adults and people with conditions like diabetes or obesity. LUT017 is a gel that will be applied directly to the surface of these wounds. The goal of the study is to find out if the gel is safe and well tolerated when applied once a week for up to 8 weeks. The researchers will also look for early signs of whether the gel helps the wounds heal more quickly or completely. The gel contains a medicine that has been shown in animal studies to activate natural skin repair processes and promote cell growth, potentially speeding up the healing process. The study will involve between 12 and 18 adult participants who have had a chronic leg wound for at least 4 weeks. All participants will go through a screening process to make sure they are eligible. If they qualify, they will first complete a two-week "run-in" phase where their wound will be treated with standard medical bandages. This phase helps ensure that only participants whose wounds are not healing with normal care are included. If participants remain eligible after this period, they will start the treatment phase. During this phase, they will come to the clinic once a week for 8 weeks to receive the LUT017 gel treatment directly on their wound. Each visit will include a physical exam, vital signs, wound evaluation, photographs of the wound, and blood tests to monitor safety. After the 8-week treatment period, participants will return for two follow-up visits-one at 3 months and one at 6 months after their first treatment. These visits will help the researchers understand how long any benefits of the treatment might last and monitor for any delayed side effects. In total, participants will be involved in the study for about 6.5 months and will have approximately 12 to 14 visits to the clinic. Participation is entirely voluntary, and individuals can withdraw at any time. The research team is committed to ensuring participant safety and privacy throughout the study.

The goal of this observational study is to determine the durability of closure for venous leg ulcer subjects that achieved closure in the THOR trial.