No, I haven't done this. But, like Debbie, I think you can change the story enough to fictionalize it. After all, most of us are inspired by real life situations and we change the characters' names, locations, ages, sometimes gender, etc.
An adult novel I just read, MEANT TO BE, by Emily Giffen, is a fictionalized reimagining of the meeting and relationship of John Kennedy Jr. and Carolyn Bessette Kennedy. The names of the protagonists start with J and C (but are different). Some of the background is similar, some is invented. The author included an Author's Note which explained how she was inspired by the historical figures and what she fictionalized. Nowhere does she mention asking for or getting permission from the Kennedy family for fictionalizing the story. By the way, this was a very well written novel and I highly recommend it.