The test reportedly involved 101 patients receiving cariprazine and 99 receiving a placebo. There were 25 relapses (24.8%) in the cariprazine group versus 47 relapses (47.5%) in the placebo group, the drug companies said.

“We are encouraged by the positive top line results shown in this study, which are considered a further milestone in the process of making this promising treatment option available for patients suffering from schizophrenia,” said Dr. István Greiner, Research Director of Gedeon Richter.

The U.S. Food and Drug Administration (FDA) acknowledged the receipt of the two companies’ new drug application resubmission for cariprazine, according to an announcement earlier this month.

One of the blue chips on the Budapest Stock Exchange, Gedeon Richter has been concerned about reduced profits due to the economic troubles in Russia, where the firm has been earning nearly one quarter of its revenue.