Great White guitarist Mark Kendall has been battling kidney cancer since his diagnosis in April.

In a recent interview, Kendall discussed his treatment and how immunotherapy has helped shrink the tumor from 13 centimeters to four centimeters with no signs of spread.

He is being treated with Keytruda (immunotherapy) and Lenvima therapies that help the immune system target cancer cells.

On Sunday, June 28, Kendall took to social media to share his progress, saying "My tumor has shrunk to 4 centimeters starting at 13! Things are going in the right direction.

My goal is 'no sign of the disease!'".

This comes after Kendall spoke publicly about his health and upcoming autobiography last January in an interview with Meltdown of Detroit's WRIF radio station.

He discussed his prognosis, saying "You get in your head a little bit, like, 'Am I dying? What's going on here?' But so now that it's real small and it's getting smaller and everything, I'm starting to pretty good." Kendall also touched on writing his autobiography with ghostwriter Jeffrey Mangus.

He said "A lot of emotions have been stirred up through the process of me writing my autobiography...And also Jeff asked me a lot of questions, which brings up even more memories." Despite battling cancer, GREAT WHITE continues to captivate audiences worldwide with their crushing blues-based guitar riffs and swagger that invokes an emotional high for anyone who listens.

The band has sold over 10 million albums worldwide, has six Top 100 Billboard hits, nine Top 200 Billboard albums, two multi-platinum albums, five gold records and clocked the top of MTV video four times.