Caitlin Leggett, a 24-year-old woman, has died weeks after beginning a fundraising effort for treatment for acute myeloid leukaemia. Leggett's diagnosis in April 2025 revealed she and her sister, Grace, were identical twins, a discovery made as Caitlin urgently needed a stem cell transplant.
Following chemotherapy and a stem cell transplant in December 2025, Caitlin achieved complete remission. However, by May 2026, doctors found the cancer had returned, and she was given an estimated six months to live. "We're only 24 – nobody expects this to happen... Being twins as well, you're not supposed to have one twin not be there," her twin Grace stated.
Her family pursued potentially curative treatment options internationally, leading to the launch of a GoFundMe campaign on June 2. By June 10, the fundraiser had garnered over £100,000.
On June 13, Caitlin experienced a sudden and severe brain bleed, followed by a series of strokes, leading to a rapid decline in her health. She passed away two days later, with her twin sister Grace, brother Ethan, 27, sister Neve, 19, and parents Jennifer, 54, and Ian, 57, by her side. Grace described the final moments, noting that the family had the opportunity to speak with Caitlin, and that nurses provided a memory box containing her footprints and handprints.