The parents of terminally-ill baby Charlie Gard have vowed "if he's still fighting, we're still fighting" as they delivered a 35,000 signature petition to Great Ormond Street Hospital calling for him to be allowed to travel overseas for treatment.
A boy named Arturito Estopinan in Baltimore was the first child to be given deoxynucleotide monophosphate, an experimental treatment that significantly extended the life of mice with the same condition as Arturito, known as TK2-related mitochondrial depletion syndrome. Not only that, but they said it would be futile and would prolong Charlie's suffering.
If there is a ruling in favor of the parents, baby Charlie could be treated at several different facilities in the United Sattes, including New York Presbyterian Hospital and the Columbia University Medical Center.
Charlie's parents were overcome with emotion during the hearing.
"We're not saying Great Ormond Street is a bad hospital but they don't have a specialist for his particular condition".
"Two global hospitals and their researchers have communicated to us as late as the last 24 hours that they have fresh evidence about their proposed experimental treatment", the hospital said in a statement released on Friday.
Hospital Great Ormond Street Hospital had in effect chose to terminate the care of Charlie, whose vital prognosis is engaged, receives since October.
Charlie's parents have been stopped from taking him across the Atlantic by a High Court ruling.
The case will come back to the High Court this afternoon to hear fresh arguments following claims of "new information" from researchers at the Vatican's children's hospital.
GOSH said it would send the case back to court after global healthcare facilities offered "fresh evidence about their proposed experimental treatment" for Charlie.
But Charlie's parents took the matter to court, and eventually appealed their case to the European Court of Human Rights.
Rev Patrick Mahoney, addressing supporters and media before the family statement, said he was pleased to be able to visit Charlie a day earlier.
Yates has said previously that, should the money that has been raised for Charlie not be used on his treatment, it will be offered to support other children with similar genetic disorders. "They have advocated for him fiercely", Brad Wenstrup, Representative for OH, and Trent Franks, Representative for Arizona, said in a statement last week.
"There's now seven doctors supporting us from all over the world - from Italy, from America, from England as well, that think that this has a chance", Yates said outside the hospital.
Doctors at New York-Presbyterian Hospital/Columbia University have also said the experimental drug could be shipped to the hospital in London.
'There's no catastrophic brain damage, as I'm sure you have heard or read in the papers, ' Chris said.