Former deputy PM Nick Clegg and his wife Miriam Gonzalez Durantez have revealed their eldest son has been battling blood cancer.
Antonio was diagnosed in September past year after discovering a small, painless lump in his neck, which led to four monthly cycles of chemotherapy and treatment with heavy steroids.
Speaking about how the family dealt with the teenager's condition, Miriam said they tried to keep their routine as normal as possible.
The pair described telling Antonio, now 15, he had been diagnosed with Hodgkin lymphoma as "one of the toughest things that we have ever done".
Nick, who was the leader of the Liberal Democrats between 2007 and 2015, also opened up about how the condition impacted him as a dad.
Speaking on ITV's Lorraine show on Wednesday morning to raise awareness, Mr Clegg said: "You have this nearly physical wish to try and take it off your kid and take it yourself".
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'And then very quickly you get into the pretty gory details of the treatment'. Speaking on ITV's Lorraine show, the couple said they took their son to the doctor after they discovered a small, painless lump on his neck. 'Interestingly, the thing he was most concerned about was falling behind his classmates. So it was very impressive actually'.
The charity will launch a report on Wednesday urging more research into less toxic treatments for children with cancer.
In a joint article written for the organisation, Nick and Miriam said: 'Like all parents who have a child diagnosed with cancer, our first reaction was an overwhelming, if irrational, wish to take the cancer away from him and take it on ourselves.
An ultrasound scan and biopsy revealed stage two lymphoma, and Antonio was treated with four monthly cycles of chemotherapy, a course of heavy steroids, and several courses of medication.
The Cleggs are campaigning for more research into kinder treatments that avoid detrimental side effects such as hair loss, vomiting, tiredness and immuno-deficiencies.
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