Are depot as effective as oral antipsychotics on first-episode psychosis?

Depot antipsychotics have been generally used in patients with chronic schizophrenia with adherence problems to oral therapy. However, it has been suggested they can be a good alternative in earlier stages too. Searching in Epistemonikos database, which is maintained by screening 30 databases, we identified three systematic reviews including two pertinent randomized trials. We combined the evidence using meta-analysis and generated a summary of findings table following the GRADE approach. We concluded it is not clear whether there are differences between depot and oral antipsychotics in first-episode psychosis because the certainty of the available evidence is very low.