Study of Choline Chloride for Injection in Adolescent and Adult Patients With Intestinal Failure Receiving Long Term Parenteral Support

Key Inclusion Criteria: * Male or female 12 years of age or older at the time of signing the informed consent * Individuals who have voluntarily given written informed consent after the nature of the study has been explained according to applicable requirements, prior to study entry * Individuals with intestinal failure receiving long-term PS when oral or enteral nutrition is not possible, insufficient, or contraindicated who are receiving stable PS at time of screening and for the duration of the study; Note: Long-Term PS = Participant must have been receiving PS for at least 6 months prior to screening and requiring PS at least 3 times per week * Females of childbearing potential must have a negative urine pregnancy test at screening Key Exclusion Criteria: * Participants taking steatogenic medications or any medicine that could affect the measurement of hepatic steatosis within 12 weeks prior to signing consent * Evidence of systemic active infection at the time of dosing * Participants intending to take non-study drug choline supplements or choline-containing multivitamins during the course of the study * Participants unwilling to limit alcohol intake to no more than 20/g a day for 24 hours prior to their screening visit and for the duration of the study * Active malignancy (excluding basal cell skin tumor, low or very low risk prostate cancer, cervical carcinoma in situ and local resected cervical cancer) * Clinically significant renal disease * Low B12 or low serum folic acid levels that are less than the normal range * Participants with severe hepatic impairment, defined as Child-Turcotte-Pugh (CTP) Class C (score ≥10) at screening.