The FDA just expanded a landmark gene therapy to children as young as 2. Here's what Casgevy actually does, and why the age expansion matters.
Jul 12, 2026
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5 min read
The donor cells survived the drug that was supposed to destroy them. What happened to the cancer is what this issue explains.
May 30, 2026
6 min read
The clinical trial worked. The FDA approved it. The patients who need it most are still waiting.
Apr 30, 2026
