Isabel Collett, 22, from Upminster, is gearing up to walk 25 kilometres across central London on Saturday, August 22, in an endurance event that will raise money for the Teenage Cancer Trust – the charity that became a lifeline for her family after her teenage brother was diagnosed with blood cancer.
A devastating diagnosis
In March 2025, James Collett, Isabel’s younger brother, visited his GP with what he assumed was a persistent cough. But tests revealed he had Hodgkin’s lymphoma, a type of blood cancer that affects the lymphatic system. The news turned the family’s world upside down.
James underwent four rounds of intense chemotherapy, a gruelling process that left him with severe side effects and led to emergency hospital stays when he developed blood poisoning. Despite the suffering, he completed his treatment, supported every step of the way by the team at a dedicated specialist unit at University College London Hospital – a facility funded entirely by the Teenage Cancer Trust.
Specialist care for young people
The unit where James was treated is not a typical hospital ward. It is designed specifically for young people, offering age-appropriate spaces, specialised medical staff, and a far less clinical environment than standard oncology departments. This tailored approach helps patients feel more comfortable and at ease during what is often an isolating and frightening time.
For Isabel, the difference was immense. “The nurses were beyond kind, compassionate and supportive,” she said. “They did everything they could for James, and for us as a family. They even connected us with charities who could offer additional help during an incredibly challenging time.”
A 25km challenge to say thank you
Now, Isabel is determined to give back. Alongside her friend Molly Amrani, she will take on the London Summer Walk Ultra Challenge, a demanding 25km route through the capital. The event, which starts and finishes in central London, is one of many Ultra Challenge walks held across the UK each year.
“This fundraiser is my way of saying thank you to the Teenage Cancer Trust for the incredible care and support they gave my brother James and our family when we needed it most,” Isabel told our reporter.
Her efforts have already inspired an outpouring of generosity. She has raised more than £2,500 in advance of the event, a figure that continues to climb as friends, family, and even strangers hear her story.
How to support
Supporters can donate to Isabel’s fundraising page on JustGiving. Every pound raised will go directly to the Teenage Cancer Trust, helping the charity continue its vital work supporting young people with cancer and their families across the UK.
Those inspired by Isabel’s determination can also sign up for future Ultra Challenge events, including other walks throughout the year, through the organisation’s website.
James, now in recovery, is expected to be watching his sister’s progress with pride. For Isabel, the walk is not just about raising money – it’s about making sure that no other family has to face cancer without the same support that carried hers through the darkest days.
