Please assess the completion status of the following clinical trial:

Trial Title: Effect of Biological Therapy on Biomarkers in Patients With Untreated Hepatitis C, Metastatic Melanoma, or Crohn Disease

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:~DISEASE CHARACTERISTICS:~* Diagnosis of 1 of the following:~  * Acute or chronic hepatitis C~    * Receiving pegylated interferon alfa and ribavirin~ * Metastatic melanoma~    * Receiving ticilimumab~ * Crohn disease~    * Received prior infliximab~Exclusion Criteria:~* Not specified~PATIENT CHARACTERISTICS:~* Not specified~PRIOR CONCURRENT THERAPY:~* See Disease Characteristics

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

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