LOS ANGELES — The head of a Roman Catholic order that specialized in the treatment of pedophile priests visited with then-Pope Paul VI nearly 50 years ago and followed up with a letter recommending the removal of pedophile priests from ministry, according to a copy of the letter released Wednesday.

In the Aug. 27, 1963, letter, the head of the New Mexico-based Servants of the Holy Paraclete tells the pope he recommends removing pedophile priests from active ministry and strongly urges defrocking repeat offenders.

The letter, written by the Rev. Gerald M.C. Fitzgerald, appears to have been drafted at the request of the pope and summarizes Fitzgerald’s thoughts on problem priests after his Vatican visit.

A message left with the Paraclete order at one of their two existing facilities in Missouri was not returned. A number for the second facility was disconnected. The offices of the Vatican spokesman were closed late Wednesday.

Tod Tamberg, spokesman for the Archdiocese of Los Angeles, defended the church and said it was unlikely Paul VI ever saw the letter.

“The fact of the matter is, the prevailing ideas at the time about how to deal with abusive behavior were not adequate,” Tamberg said. “Clearly, society and the church have evolved new understandings of what causes sexually abusive behavior and how to deal with it.”

Fitzgerald opens the five-page letter by thanking the pope for an audience the day before and says he is summarizing his thoughts at the pope’s request on the “problem of the problem priest” after 20 years working to treat them.

He tells Paul VI that treatment for priests who have succumbed to “abnormal, homosexual tendencies” should include psychiatric as well as spiritual counseling — but goes on to warn about the dangers of leaving those individuals in ministry.”Personally, I am not sanguine of the return of priests to active duty who have been addicted to abnormal practices, especially sins with the young,” Fitzgerald wrote.

“Where there is indication of incorrigibility, because of the tremendous scandal given, I would most earnestly recommend total laicization,” he wrote. “I say ‘total’ because when these men are taken before civil authority, the non-Catholic world definitely blames the discipline of celibacy for the perversion of these men.”

The letter proves that Vatican officials knew about clergy abuse decades ago and should have done more to protect children, said Tony DeMarco, an attorney for clergy abuse victims in Los Angeles.

The church has come under fire for transferring priests accused of sexual abuse to other parishes, rather than reporting the abuse to civil authorities and removing them from ministry.

Fitzgerald’s letter shows the pope knew how pervasive and destructive the problem was, DeMarco said. “He says the solution is to take them out of the priesthood period, not shuffle them around, not pass them from diocese to diocese.”

The letter was released in Los Angeles by attorneys who represented more than 500 victims of clergy abuse in their $660 million settlement with the Archdiocese of Los Angeles in 2007.

It’s among thousands of pages of clergy abuse documents that are to be released as a condition of the settlement after review and approval by a judge overseeing the process.