Analgesic Efficacy and Obstetric Effects of Tramadol, Paracetamol and Placebo in Active Labor — StellaPhase 4 — Post-approval study. The treatment has been approved, but researchers continue monitoring it in a large population over time.
Trial locations(2 sites)
Honduras
Hospital Escuela, Tegucigalpa, Francisco Morazán Department Instituto Hondureño de Seguridad Social, Tegucigalpa, Francisco Morazán Department Last updated February 2026