New contraceptive device under attack:
This article was originally published in Clinica
Executive Summary
Unipath has admitted that around 450 women have become pregnant while using the company's Persona contraceptive device, hailed as a rival to the pill at its launch last September 30th. The device, which has been bought by more than 100,000 women from Boots chemists, measures hormone levels in urine to establish when a woman is fertile (see Clinica No 726, p 17). Unipath has recently reduced its claimed success rate for Persona from 95% to 94%, it told the BBC's Watchdog Healthcare programme. Clinica estimates the failure rate at 1.8%.