Giffords is able to stand with assistance, but is not yet able to take steps or walk, said Rhee, adding that therapists are helping Giffords with ways to express her thoughts and, eventually, speak.
The study of a sustained release oral formulation of the synthetic form of prostacylin showed that patients treated for pulmonary arterial hypertension did not achieve a statistically significant improvement in how far they were able to walk within six minutes by week 16 of the trial.