Pregnancy test's alleged link to birth defects to be reviewed by UK regulator

Watchdog to examine new files found by campaigners while Primodos maker Bayer denies it caused abnormalities

The UK drugs regulator is to examine new evidence about a pregnancy test used in the 1960s and 70s which hundreds of parents believe caused serious deformities in their children, often leading to early death.

A 7,000-page cache of files discovered by a victims' campaign group includes papers suggesting the British government knew in 1975 that the hormonal drug Primodos increased the risk of a child being born with malformations. The drug was withdrawn in 1978.