I en retrospektiv respondensanalyse baseret på ændringen i 6- minutters gangtest, WHO funktionsklasse og dyspnø hos de 95 patienter, som var randomiseret til Tracleer 125 mg to gange daglig i de placebokontrollerede forsøg, blev det observeret, at i uge 8 havde 66 patienter forbedrede resultater, 22 var stabiliseret, og 7 havde forringede resultater.
In a retrospective responder analysis based on change in walking distance, WHO functional class and dyspnoea of the 95 patients randomised to Tracleer 125 mg twice daily in the placebo-controlled trials, it was found that at week 8, 66 patients had improved, 22 were stable and 7 had deteriorated.