Straight from Harvard Medical School, their recent publication in September 2010, says it all. The evidence shows that psychodynamic therapy is as effective as CBT, but also its benefits may increase over time.
- The effectiveness of psychodynamic psychotherapies: An update. Peter Fonagy World Psychiatry. 2015 Jun; 14(2): 137–150. Published online 2015 Jun 4. doi: 10.1002/wps.20235 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4471961/