Please assess the completion status of the following clinical trial:

Trial Title: Study of Breakthrough Cancer Pain: Assessment of Fentanyl Buccal Tablets Titration and Treatment in Opioid-Tolerant Patients

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: None
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* The patient is willing to provide written informed consent to participate in this study.~* The patient can be either an out-patient or an in-patient.~* The patient has a histologically documented diagnosis of cancer.~* The patient has stable background pain due to cancer.~* The patient experiences up to 4 BTcP episodes per 24 hours.~* As maintenance opioid therapy, the patient is currently taking 1 of the following: at least 60 mg of oral morphine/day, at least 25 mcg of transdermal fentanyl/hour, at least 30 mg of oxycodone/day, at least 8 mg of hydromorphone/day, of an equianalgesic dose of another opioid for a week or longer before administration of the first dose of study drug.~* Women of childbearing potential, using a medically accepted, highly effective method of birth control and agree to continued use of this method for the duration of the study.~* The patient must be willing and able to successfully self-administer the study drug and to fill in study documents.~Exclusion Criteria:~* The patient is without maintenance opioid therapy.~* The patient has uncontrolled or rapidly escalating pain as determined by the investigator.~* The patient has known or suspected hypersensitivities, allergies, or other contraindications to the active drug or to any of the excipients of the study drug.~* The patient has respiratory depression or chronic obstructive pulmonary disease, or any other medical condition predisposing to respiratory depression.~* The patient has medical or psychiatric disease that, in the opinion of the investigator, would compromise collected data.~* The patient is expected to have surgery during the study.~* The patient is pregnant or lactating.~* The patient has participated in a study involving an investigational drug in the prior 30 days.~* The patient has received a monoamine oxidase inhibitor (MAOI) within 14 days before the first treatment with study drug.~* The patient has any other medical condition or is receiving concomitant medication/therapy (e.g., regional nerve block) that could, in the opinion of the investigator, compromise the patient's safety or compliance with the study protocol, or compromise collected data.

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

Study Arms:
- FBT 100 mcg (Type: EXPERIMENTAL): During the Titration Period, participants took fentanyl buccal tables (FBT) with a starting dose of 100 mcg until they reached an effective dose, with a maximum dose of 800 mcg and a maximum timeframe of 7 days. Participants who reached an effective dose entered the Open-label Treatment Period, whose length depended on how long was needed to treat up to 8 episodes of breakthrough pain (BTP) with FBT (maximum of 8 days). The length of the Continuation Period (when applicable) varied from country to country, up to until FBT was commercially available in that country.
- FBT 200 mcg (Type: ACTIVE_COMPARATOR): During the Titration Period, participants took fentanyl buccal tables (FBT) with a starting dose of 200 mcg until they reached an effective dose, with a maximum dose of 800 mcg and a maximum timeframe of 7 days. Participants who reached an effective dose entered the Open-label Treatment Period, whose length depended on how long was needed to treat up to 8 episodes of breakthrough pain (BTP) with FBT (maximum of 8 days). The length of the Continuation Period (when applicable) varied from country to country, up to until FBT was commercially available in that country.

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

Answer: outcome: terminate
termination_type: enrollment issues