Please assess the completion status of the following clinical trial:

Trial Title: Omega-3 Fatty Acids Supplementation in ADHD

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~Participants between ages 6 and 12 years who:~1. have been clinically diagnosed with ADHD by a physician~2. meet the criteria of ADHD-Inattention, ADHD-Hyperactivity-Impulsivity, or ADHD-Combined type as determined by the SNAP-IV (Swanson, 1992)~3. are willing to participate in a randomized, double-blind, placebo-controlled trial, complete with written, informed parental consent,~4. are on stable dosage of methylphenidate treatment before the start of the study~5. are able to speak English or German~Exclusion Criteria:~1. Participants who are younger than 6 years old or older than 12 years old~2. Those who have not been clinically diagnosed with ADHD by a physician~3. Those who did not meet the criteria of ADHD-Inattention, ADHD-Hyperactivity-Impulsivity, or ADHD-Combined type as determined by the SNAP-IV (Swanson, 1992)~4. Those without written parental consent~5. Those with brain pathology such as serious head injury, epilepsy, and intellectual disability (IQ \< 70)~6. Those with titrated dosage of methylphenidate before the start of the study~7. Those on neurofeedback training, and/or psychosocial intervention addressing attention problems~8. Those with known hypersensitivity to the IMP under investigation~9. Those who are unable to read and understand the parent/participant information~10. Those receiving medications other than methylphenidate

- Gender: ALL
- Minimum Age: 6 Years
- Maximum Age: 12 Years
- Healthy Volunteers: f

Study Arms:
- Omega-3 Fatty Acids (Type: EXPERIMENTAL): 1g of Omega-3 per day \[400mg DHA \& 600mg EPA\] for 12 weeks: 2 capsules after breakfast and 2 capsules after dinner
- Omega-3 Placebo (Type: PLACEBO_COMPARATOR): 1g of Omega-3 Placebo per day for 12 weeks: 2 capsules after breakfast and 2 capsules after dinner

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