Please assess the completion status of the following clinical trial:

Trial Title: Single Embryo Transfer vs. Double Embryo Transfer in an Oocyte Donation Programme

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

Eligibility Criteria:
Inclusion Criteria:~* patients under their first or second cycle of a synchronous donation~* to have a minimum of 5 available embryos to transfer~* patients who accept transfers of frozen-thawed embryos~Exclusion Criteria:~* medical indications to transfer only one embryo (Turner Syndrome, uterine surgical history, uterine myomas,...)

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: 50 Years
- Healthy Volunteers: f

Study Arms:
- SET (Type: EXPERIMENTAL): Single embryo transfer
- DET (Type: ACTIVE_COMPARATOR): Double embryo transfer

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