Please assess the completion status of the following clinical trial:

Trial Title: Sedation Strategies for Diagnostic Bronchoscopy

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Scheduled for flexible diagnostic bronchoscopy~* Adult patients aged 18 to 65 years~* American Society of Anesthesiologists (ASA) Physical Status Classification I-II~* BMI 18.5-25kg/m2~* Subjects provide informed consent~Exclusion Criteria:~* Severe airway obstruction~* Coagulation disorder~* Repeat bronchoscopy (more than 3 times)~* Severe liver and renal dysfunction~* Cardiovascular and cerebrovascular diseases~* Pregnancy~* Chronic opioid user~* Drug abusers or addicts

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- Group F (Type: EXPERIMENTAL): Sedated with midazolam and fentanyl
- Group DR (Type: EXPERIMENTAL): Sedated with midazolam, dexmedetomidine and remifentanil
- Group DF (Type: EXPERIMENTAL): Sedated with midazolam, dexmedetomidine and fentanyl
- Group PR (Type: EXPERIMENTAL): Sedated with midazolam, propofol and remifentanil

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