Please assess the completion status of the following clinical trial:

Trial Title: Effectiveness of BBT-I and Zopiclone for Chronic Insomnia

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~meeting the criteria for chronic insomnia according ICSD-3 willingness to take part in the study and signed informed consent form~Exclusion Criteria:~1. unability to stop taking medications that have a proven impact on sleep at least one week before and during the study;~2. history of alcohol or drug abuse;~3. major depressive disorder or other severe mental disorder identified by a clinical assessment and medical history;~4. dementia;~5. pregnancy or lactation;~6. shift or night work;~7. medical problems that would be a direct cause of sleep complaints: moderate/severe sleep apnea, defined as an apnea-hypopnea index of ≥15 events per hour, periodic limb movement disorder defined as a periodic leg movement index ≥15 events per hour or restless legs syndrome;~8. other serious chronic conditions or exacerbation of chronic disorder preventing further participation.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- zopiclone first group (Type: EXPERIMENTAL): underwent the medication therapy (zopiclone) for the first two weeks followed by brief behavioral therapy
- BBT-I first group (Type: EXPERIMENTAL): received two-week brief behavioral therapy followed by medication therapy (zopiclone).

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