Newborns who are born premature or suffer brain injury at birth are at risk for motor problems that may cause weakness in reaching and grasping on one side of the body. In older children, therapists may use a hand mitt and restraint for the stronger arm, to encourage use of the weaker side, called constraint-induced movement therapy (CIMT). Even with the high intensity therapy of CIMT, it typically takes between 40-120 hours total treatment time for most children to improve their motor skills. A non-invasive form of nerve stimulation, transcutaneous auricular vagus nerve stimulation (taVNS), stimulates a nerve by the ear that enhances learning motor skills. taVNS stimulation will be triggered by EMG sensors which detect muscle activity. The purpose of this study is to evaluate the safety and effectiveness of taVNS to improve motor skills when paired with CIMT in infants with one-sided weakness at 6-24 months of age.

Study LTI-401 is an open-label, multicenter study which will evaluate the safety and tolerability of LIQ861, the study drug, in subjects who have World Health Organization (WHO) Group 1 & 3 Pulmonary Hypertension. The purpose of this research study is to evaluate the long-term safety and tolerability of LIQ861 in patients with WHO Group 3 Pulmonary Hypertension associated with interstitial lung disease (PH-ILD). The investigational form of Treprostinil in this study is called LIQ861, it is delivered to your lungs using a hand-held device called a dry powder inhaler (DPI). Dose levels may be adjusted by the Study Doctor between 26.5 micrograms to 318 micrograms based on your PH-ILD symptoms. The study will include approximately 60 subjects and participation will last 52 weeks.