Doyle said he spent eight to 10 hours over three days explaining the situation in the U.S. from the perspective of his 30 years of advocacy for victims.
Four survivors of abuse will make an unscheduled visit to Rome on Sunday, hoping to encounter Pope Francis at home.
Two members of the new Vatican commission advising Pope Francis on clergy sexual abuse have said they are both concerned and surprised at the pontiff's decision to appoint a bishop in Chile who is accused of covering up abuse, and even witnessing it, while he was a priest.
The Catholic church is "no longer a safe haven for child abusers," said a top priest psychologist who advises the U.S. bishops on child sexual abuse.
Msgr. Stephen Rossetti told hundreds of Irish delegates to the first national conference on safeguarding children that the Catholic church in the United States spent $43 million on child abuse prevention and education just last year.
Bringing more expertise and more geographic balance, the larger commission and the global nature of the church could add to the complexity, rather than reduce it.
Peter Saunders, an English survivor of clerical abuse, had called on Pope Francis in July to hand over information about abusive priests to state authorities.
A papal commission on child protection will be expanding its nine-member panel to include more experts and another survivor of clerical abuse.
One of the Irish survivors of clerical sexual abuse who met Pope Francis on Monday described the encounter as a "huge vindication" for her.
The victim, Marie Kane, also asked the pope to remove Cardinal Sean Brady as archbishop of Armagh, Northern Ireland.
The Council of Cardinals will meet again this week, presumably to consider an overall blueprint for a new structure of the Vatican's central bureaucracy.
Some victims' advocates dismissed the upcoming meeting as "meaningless" while others endorsed it as a positive step, though long overdue.