For Cancer Drugs With China-Only Data, US FDA Leaves Door Open Just A Crack

Regulatory flexibility may be warranted for diseases with low prevalence in the US, such as nasopharyngeal carcinoma, or for pediatric tumors, which are difficult to study in multi-regional trials, FDA officials said at the advisory committee review of Innovent/Lilly’s lung cancer drug sintilimab; the agency has no plans to change its regulations on evaluation of foreign clinical data.

Door crack
The US door is cracked ever so slightly for cancer drugs developed only in China. • Source: Alamy

With the recent advisory committee review of Innovent Biologics, Inc./Eli Lilly and Company’s Chinese-developed PD-1 inhibitor sintilimab, the US Food and Drug Administration sent a clear message that the regulatory door is closed to most cancer drug applications based solely on clinical trial data from a single country.

However, that same door remains open a crack for a limited group of products, such as those aimed at cancers...

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