"The German model project for heroin-assisted treatment of opioid dependent patients is so far the largest randomised control group study that investigated the effects of heroin treatment. This fact alone lends particular importance to the results in the (meanwhile worldwide) discussion of effects and benefits of heroin treatment. For the group of so-called most severely dependent patients, heroin treatment proves to be superior to the goals of methadone maintenance based on pharmacological maintenance treatment. This result should not be left without consequences. In accordance with the research results from other countries, it has to be investigated to what extent heroin-assisted treatment can be integrated into the regular treatment offers for severely ill i.v. opioid addicts."
Naber, Dieter, and Haasen, Christian, Centre for Interdisciplinary Addiction Research of Hamburg University, "The German Model Project for Heroin Assisted Treatment of Opioid Dependent Patients -- A Multi-Centre, Randomised, Controlled Treatment Study: Clinical Study Report of the First Study Phase," January 2006, p. 122.