Please assess the completion status of the following clinical trial:

Trial Title: Evaluation of Pupillometry for cyp2d6 Phenotyping in Children Treated With Tramadol

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: DEVICE_FEASIBILITY
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion criteria~* Age 1-15 year at time of inclusion~* Weight ≥ 10 kg~* Treatment with tramadol as a pain killer administrated as part of their routine care~* Parent/Legal guardian has been informed about the study and has signed Informed Consent Form~Exclusion criteria~* Known kidney or liver disease~* Concomitant treatment with inhibitors/inducers of CYP2D6 and CYP3A~* Documented previous adverse reaction to tramadol or dextromethorphan~* Concomitant treatment with any opiate drug and/or any drug with a known impact on pupil size~* Any concomitant condition, which in the opinion of the investigator would preclude a subject's participation in the study

- Gender: ALL
- Minimum Age: 1 Year
- Maximum Age: 15 Years
- Healthy Volunteers: f

Study Arms:
- single arm study (Type: EXPERIMENTAL): pupillometry, CYP2D6 genotyping and phenotyping

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