Addiction treatment specialist Indivior (INDV) has taken a big step towards launching what it claims is a ‘transformational’ drug after generating positive stage three clinical trial data.

RBP-6000 has proved more effective than a placebo in reducing opioid use in those suffering from a dependence on the product.

Shares jumped 19.4% higher to 359.6p on the news, despite the trials continuing until the first quarter of 2017.

Analysts at Numis are bullish forecasting sales of $500 million by 2020, if the treatment is launched in 2018 as expected.

They also believe that the treatment could become a blockbuster drug, taking around 30% of market share by volume.

Web - Indivior - 17 August 2016

The drug, which reduces cravings and addresses withdrawal symptoms, is a once a month injection, an improvement on existing product Suboxone, which involves a film dissolving in the mouth daily.

The film version of Suboxone had a 61% market share in the US at the end of June, so confidence that an extended release version will take market share is high.

A decision by US regulator the Food & Drug Administration (FDA) on whether or not the treatment can be used on the general public will be made within six months of filing.

RBP-6000 has been granted Fast Track status, due to it treating a condition where there is an unmet need. So it could be approved for sale by the end of 2017, if the remainder of the trials are as successful.

Indivior, a spin-out from consumer goods company Reckitt Benckiser (RB.), also has alcohol and cocaine addiction drugs under development.

Issue Date: 17 Aug 2016