SOUTH PLAINFIELD, N.J. (AP) _ PTC Therapeutics Inc. (PTCT) on Tuesday reported a loss of $128.6 million in its first quarter.

On a per-share basis, the South Plainfield, New Jersey-based company said it had a loss of $1.83.

The results missed Wall Street expectations. The average estimate of six analysts surveyed by Zacks Investment Research was for a loss of $1.59 per share.

The biopharmaceutical company posted revenue of $117.9 million in the period, surpassing Street forecasts. Four analysts surveyed by Zacks expected $96.2 million.

PTC Therapeutics shares have declined 37% since the beginning of the year. In the final minutes of trading on Tuesday, shares hit $38.47, a fall of 20% in the last 12 months.

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This story was generated by Automated Insights (http://automatedinsights.com/ap) using data from Zacks Investment Research. Access a Zacks stock report on PTCT at https://www.zacks.com/ap/PTCT