Doctors say David Cassidy, 67, is 'near the end' after the actor suffered multiple organ failure and was placed in an induced coma.
The 67-year-old Partridge Family star and singer was rushed to hospital in Florida three days ago.
A source told TMZ that his condition was 'grim' and his doctors were desperately seeking a kidney transplant.
Now sources say it's too late and his family are preparing for the end.
'There's really no issue anymore for a transplant. It's futile,' the source said.
Doctors have reportedly summoned Cassidy's son and ex-wife back to the hospital for what could be their final farewells.
Cassidy's has been in failing health for the last two months.
Cassidy is widely known for his starring role as Keith Partridge on the 1970s series The Partridge Family.
In February, the star revealed he was battling dementia after he fell on stage during a concert in Los Angeles. His mother, actress Evelyn Ward, and his grandfather also had the condition.
The two arrests started a year of trouble for Cassidy. One month after the Los Angeles arrest, he announced the he and his wife of 23 years were going through a divorce, triggering a stay in rehab. Even though he was facing jail time in his L.A. arrest, the judge gave him five years probation and ordered him to remain in rehab until he had completed the 90-day program.