Please assess the completion status of the following clinical trial:

Trial Title: Studying Fentanyl in Patients With Cancer

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

Eligibility Criteria:
DISEASE CHARACTERISTICS:~* Diagnosis of cancer~* Inpatient at the Johns Hopkins Hospital Cancer Center undergoing pain treatment with continuous infusion fentanyl citrate for ≥ 5 days~PATIENT CHARACTERISTICS:~* Willing to change to an alternative opioid~PRIOR CONCURRENT THERAPY:~* See Disease Characteristics~* At least 72 hours since transdermal fentanyl citrate administration~* At least 12 hours since transmucosal fentanyl citrate administration~* No known requirement for continued opioid therapy with any fentanyl citrate products after discontinuation of fentanyl citrate therapy

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

Study Arms:
- Cohort 1 (Type: None): receiving fentaly citrate

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