Please assess the completion status of the following clinical trial:

Trial Title: Effect of Lubiprostone on Nutritional Status and Pulmonary Function in Adults With Cystic Fibrosis

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: CASE_ONLY
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Planning or currently on chronic lubiprostone therapy (chronic is defined as at least one 24 microgram capsule by mouth every other day~* Body mass index (BMI) of less than 22 for females and less than 23 for males at the initiation of chronic lubiprostone therapy~* Initiation of chronic lubiprostone therapy within 1 month of enrollment~* Age over 18~* Currently taking a multivitamin~Exclusion Criteria:~* History of noncompliance with medications and other CF therapies~* History of hospital admissions for CF exacerbations of ≥2 in the last 6 months~* FEV1 les than 40% of expected (severe dysfunction) at most recent assessment in the ambulatory setting~* Currently registered on a lung transplant waiting list~* Any other condition, in the opinion of the investigators, that interferes with the ability of the study subject to comply with study requirements, confers significant risk, or limits the ability of the subject to complete the study

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Only group (Type: None): adult cystic fibrosis patients who are not at goal body mass index and have started lubiprostone therapy within one month of study enrollment

Based on this trial design, predict the completion outcome and termination type (if applicable).