He served in this position until 2002, during which time he implemented, among others, award-winning initiatives such as the maternal-infant care program Mãe Curitibana and Alfabetizando com Saúde, which promotes adult literacy efforts through medical content.

In the Legislative Assembly, he helped to pass projects that gave more resources to health services by means of the application of Constitutional Amendment 29, which outlines specific amounts of money to be applied to programs through the state budget.

[citation needed] Ducci left the Legislative Assembly in 2004 to be the vice-mayoral candidate for Curitiba in 2004, with Beto Richa leading the ticket.

[citation needed] During Ducci's administration, he was one of the ones responsible for the preparation of the Metrô de Curitiba construction project, including the city in the Mobility PAC of the Federal Government.

[5] In 2012, Ducci launched his candidacy to be reelected mayor of Curitiba in his own right, with federal deputy Rubens Bueno [pt], of the People's Socialist Party (PPS), as his running mate.

[9][10] He was absent in the August 2017 vote that would have sought to open investigations against then president Michel Temer, helping to archive the complaint by the Public Prosecutor's Office.