Aeterna Zentaris tanks on FDA Macrilen rejection

Shares of Canadian biotech Aeterna Zentaris plummeted nearly 56% on 6 November after the FDA rejected the company's new drug application (NDA) for Macrilen (macimorelin acetate), an ghrelin agonist, for use in evaluating adult growth hormone deficiency (AGHD).

Shares of Canadian biotech Aeterna Zentaris plummeted nearly 56% on 6 November after the FDA rejected the company's new drug application (NDA) for Macrilen (macimorelin acetate), an ghrelin agonist, for use in evaluating adult growth hormone deficiency (AGHD).

The Quebec City, Quebec firm's stock closed at 65 cents on 6 November,

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