Nearly a year after Bruce Willis鈥� family announced that after being diagnosed with aphasia, his family says his 鈥渃ondition has progressed.鈥�

In a the 67-year-old actor鈥檚 family said Willis has a more specific diagnosis of frontotemporal dementia.

鈥淲hile this is painful, it is a relief to finally have a clear diagnosis,鈥� the statement read. 鈥淔TD is a cruel disease that many of us have never heard of and can strike anyone.鈥�

Last March, Willis鈥� family said his aphasia had affected his cognitive abilities. The to understand or express speech.

In Thursday鈥檚 statement, his family said communication challenges were just one symptom of frontotemporal dementia.

鈥淭oday there are no treatments for the disease, a reality that we hope can change in the years ahead,鈥� the statement read. 鈥淎s Bruce鈥檚 condition advances, we hope that any media attention can be focused on shining a light on this disease that needs far more awareness and research.鈥�

The statement was posted on the website for The Association for Frontotemporal Degeneration and signed by Willis鈥� wife, Emma Heming Willis, his ex-wife Demi Moore, and his five children, Rumer, Scout, Tallulah, Mabel and Evelyn.

Over a four-decade career, Willis鈥� movies had earned more than $5 billion at the worldwide box office. While beloved for hits like 鈥淒ie Hard鈥� and 鈥淭he Sixth Sense,鈥� the prolific actor had in recent years primarily featured in direct-to-video thrillers.