The majority of clinical trials involving Covid-19 vaccines or treatments are showing “encouraging” results, says an analyst.

Of the 21 ongoing coronavirus trials that have reported interim results, 16 have produced positive indications early on, according to analytics firm GlobalData.

Some 69% of these clinical trials are currently in the early stages — either Phase I or Phase II — with US biotech firm Gilead Sciences’ remdesivir drug being the main exception having moved into Phase III testing in late-February.

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