The parents of terminally ill British baby Charlie Gard have ended their legal fight to transport him to the U.S. for experimental treatment, concluding a months-long saga that has raised nearly $1.75 million and elicited support from Pope Francis and President Trump.The couple's lawyer, Grant Armstrong, told the London High Court that new medical tests have shown that the experimental treatment would not help at this point, according to The Associated Press. "It's too late for Charlie," Armstrong said. "The damage has been done."Charlie suffers from a rare inherited mitochondrial disease called MDDS, for which there is no known cure, according to the Great Ormond Street Hospital which is treating him. The hospital adds that the infant has "severe progressive muscle weakness and cannot move his arms or legs or breathe unaided."According to the BBC, Armstrong told the judge "that US neurologist Dr. Michio Hirano had said he was no longer willing to offer the baby experimental therapy after he saw the results of a new MRI scan last week."NPR's Joanna Kakissis reported that the case is focused on this question: "Should parents be the ones who have the final say in treating critically ill children? Or should doctors?""Charlie's doctors at Great Ormond Street Hospital in London say they worry the experimental treatment, which has not even undergone clinical trials, could make the baby suffer," Joanna reports. "They say his life support should be shut off so he can die peacefully."Charlie's parents, Chris Gard and Connie Yates, raised money by crowdfunding for the experimental treatment in the U.S. and engaged in a legal battle in multiple courts. As NPR's Amy Held reported: