Human platelet-derived growth factors are used to treat diabetic foot ulcers. They can also treat other ulcers on the leg caused by complications of diabetes. These growth factors promote wound healing and tissue repair by stimulating cell growth and tissue regeneration. They are typically available in topical forms, such as gels, that you apply directly to the affected area. An example of a medication in this category is Regranex (becaplermin). You can use these treatments to help manage and heal your wounds more effectively.