The Apostle Saint Jude Thaddeus is the Catholic Patron Saint of “lost causes.” Saint Jude is called upon when all hope is lost, especially in grave health matters and life-and-death situations. 
PRAYER TO SAINT JUDE
O most holy apostle, St. Jude, faithful servant and friend of Jesus — People honor and invoke you universally, as the patron of hopeless cases, of things almost despaired of. Pray for me, for I am so helpless and alone. Please help to bring me visible and speedy assistance. Come to my assistance in this great need that I may receive the consolation and help of heaven in all my necessities, tribulations, and sufferings, particularly (state your request) and that I may praise God with you always. I promise, O blessed St. Jude, to be ever mindful of this great favor, to always honor you as my special and powerful patron, and to gratefully encourage devotion to you by publishing this request. Amen