Reagan Campbell-Gillard has signed a new contract with Penrith Panthers until the end of the 2024 NRL season.

The Australia international was under contract until the end of next year and has agreed a deal to further extend his stay with the title contenders, who are third in the table.

Campbell-Gillard played in the State of Origin opener, but missed out on New South Wales' series-clinching victory over Queensland last weekend after breaking his jaw.

"Panthers is the club I've always wanted to play for and I'm so thankful to have the opportunity to make a long-term commitment," the 24-year-old said.

"The fact my future is now secure means I can completely focus on building and improving my game moving forward.

"The club has shown a lot of faith in me with this deal and now it's up to me to repay that faith with my performances.

Campbell-Gillard added: "There is so much young talent coming through the ranks here at Panthers. It's going to be very exciting over the next few years and I can't wait to be a part of it."

Fellow Panthers forward Kaide Ellis also signed a new contract on Thursday, committing himself to the Panthers until 2020.