Please assess the completion status of the following clinical trial:

Trial Title: Impact of AIT on Allergic Rhinitis and Asthma

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

Eligibility Criteria:
Inclusion Criteria for the AIT cohort:~* At least two index-AIT prescriptions during the first FU-year~* At least one confirmed AR diagnosis during the study period~* Continuous enrollment (no gaps in insurance time-defined by days) for 12 months before the index event (in the pre-index period)~* Continuous enrollment (no gaps in insurance time-defined by days) for at least 12 months after the index event (in the post-index period)~Inclusion Criteria for the Control Cohort:~- For the control groups, the same inclusion criteria will apply, with the exception of inclusion criterion 1, i.e. controls have not received AIT before baseline.~Exclusion Criteria:~- AIT prescription 12 months before the index event (in the pre-index period) for the AIT treatment group

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

Study Arms:
- AIT Cohort (Type: None): Allergic rhinitis patients with and without asthma treated with AIT
- Control Cohort (Type: None): Allergic rhinitis patients with and without asthma not treated with AIT

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