Pretty much as expected based on various posts here and elsewhere - extremely effective, but not sustained after over time unless continually medicated. Presumably those with access will know how/where to find the actual published studies?
ABC News - Ketamine trial at UNSW reports success in treating depression with injections
Medical Observer - Ketamine effective in depression, Aussie researchers discover
ABC News - Ketamine trial at UNSW reports success in treating depression with injections
Medical Observer - Ketamine effective in depression, Aussie researchers discover