In the 17th century, the church was enlarged and provided with a monumental entrance stairwell and portico with five arches.

In 1980, a predella with a procession of the blood of San Gennaro was restored and is now kept beneath the marble main altar.

In the first chapel on the left is a 16th-century canvas depicting the Madonna of the Rosary with the Universal Judgement by Michele Cuira.

A depiction of the Virgin Mary with Pius V and Philip II can be seen at Santa Maria della Mercede a Montecalvario.

[3] Other works in the church are by Leonardo Castellani, by Giacomo da Cosenza, and followers of Beinaschi.