Neon Roberts has been given the all clear from the brain tumour that saw his New Zealand mother battle with British health authorities.
Neon, 8, was diagnosed with the tumour last year, and had it removed by surgery in October.
When doctors said he needed another operation and radiotherapy his mother Sally Roberts cried foul.
She took Neon to an alternative medicine centre in Sussex where he was given oxygen chamber therapy.
She said she feared traditional medicine would fry his brain. After a four-day manhunt, the pair were found by police.
A High Court judge then ruled Neon had to be treated conventionally.
His father Ben Roberts has told the Daily Mail newspaper that Neon was in remission, after radiotherapy and chemotherapy.
Ben Roberts, 35, told the Daily Mail: "We are delighted to be able to share our family’s joy that all Neon’s scans, including one last week, have shown no sign of the cancer returning.
"We couldn’t have wished for a better Christmas present."
His mother, a former DJ from Auckland, would not comment to the Daily Mail on her son’s recovery.
In August, she told The Telegraph Neon's spirit had been "crushed" by the treatment.
"I think his co-ordination and his spirit have been crushed. He's very much feeling pretty rubbish.
"He's hiding away from the world, always building dens around himself."
- Fairfax Media