GSK halts respiratory virus vaccine trial in pregnant women
London: GSK has paused a late-stage trial of its vaccine candidate against the respiratory syncytial virus (RSV) in pregnant women based on safety recommendations from an independent committee, the British drugmaker said on Friday.
The world's biggest vaccine maker by sales did not give further details on why it paused the trial, dubbed "GRACE," as well as two other studies, but said a trial of its experimental RSV vaccine for adults aged 60 and over would continue.
GSK's London-listed shares were 0.6% lower at 1,570.6 pence by 0833 GMT, having slipped as much as 1.5% in earlier trade.
RSV is a leading cause of pneumonia in toddlers and the elderly, but vaccine development has been plagued by setbacks for decades. However, many drugmakers are working to bring a candidate to the market over the next few years.
RSV vaccines are seen as an opportunity for GSK to deliver on pledges to boost its drug development success rate, where it has long lagged industry peers. GSK's shot for pregnant women was aimed at conferring immunity to protect unborn children.
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