Please assess the completion status of the following clinical trial:

Trial Title: Efficacy and Safety Trial of Rimegepant for Migraine Prevention in Adults

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE2/PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. Subject has at least 1 year history of migraine (with or without aura) consistent with a diagnosis according to the International Classification of Headache Disorders, 3rd Edition, including the following:~   1. Age of onset of migraines prior to 50 years of age~  2. Migraine attacks, on average, lasting 4 - 72 hours if untreated~  3. Per subject report, 4 - 18 migraine attacks of moderate to severe intensity per month within the last 3 months prior to the Screening Visit~  4. 6 or more migraine days during the Observation Period~  5. Not more than 18 headache days during the Observation Period~  6. Ability to distinguish migraine attacks from tension/cluster headaches~  7. Subjects on prophylactic migraine medication are permitted to remain on 1 medication with possible migraine-prophylactic effects if the dose has been stable for at least 3 months prior to the Screening Visit, and the dose is not expected to change during the course of the study.~   Exclusion Criteria:~2. Subject with a history of HIV disease~3. Subject history with current evidence of uncontrolled, unstable or recently diagnosed cardiovascular disease, such as ischemic heart disease, coronary artery vasospasm, and cerebral ischemia. Subjects with Myocardial Infarction (MI), Acute Coronary Syndrome (ACS), Percutaneous Coronary Intervention (PCI), cardiac surgery, stroke or transient ischemic attack (TIA) during the 6 months prior to screening~4. Uncontrolled hypertension (high blood pressure), or uncontrolled diabetes (however subjects can be included who have stable hypertension and/or diabetes for at least 3 months prior to screening).~5. Subjects with major depressive episode within the last 12 months, major depressive disorder or any anxiety disorder requiring more than 1 medication for each disorder. Medications to treat major depressive disorder or an anxiety disorder must have been at a stable dose for at least 3 months prior to the Screening visit.~6. Subjects with other pain syndromes, psychiatric conditions, dementia, or significant neurological disorders (other than migraine) that, in the Investigator's opinion, might interfere with study assessments~7. Subject has a history of gastric, or small intestinal surgery (including Gastric Bypass, Gastric Banding, Gastric Sleeve, Gastric Balloon, etc.), or has disease that causes malabsorption~8. Body mass index ≥ 33 kg/m2~9. Subject has current diagnosis of major depressive disorder requiring treatment with atypical antipsychotics, schizophrenia, bipolar disorder, or borderline personality disorder~10. History of gallstones or cholecystectomy.~11. The subject has a history or current evidence of any unstable medical conditions (e.g., history of congenital heart disease or arrhythmia, known or suspected infection, hepatitis B or C, or cancer) that, in the investigator's opinion, would expose them to undue risk of a significant adverse event (AE) or interfere with assessments of safety or efficacy during the course of the trial.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- DBT Rimegepant/OL Rimegepant (Type: EXPERIMENTAL): DBT Phase (Weeks 1 through 12): Participants received a single oral dose of rimegepant 75 mg tablet every other day (EOD) for 12 weeks.~OLE Phase (Weeks 13 through 64): Participants who continued to meet study entry criteria and had acceptable laboratory test results per protocol, entered the OLE phase and received a single oral dose of rimegepant 75 mg tablet EOD for 52 weeks. If participants had a migraine on a day that they were not scheduled to dose with rimegepant, they could take one tablet of rimegepant 75 mg on that calendar day to treat a migraine (as needed \[PRN\] dosing).~After completing the OLE phase, participants had follow-up safety visits 2 and 8 weeks after the End-of-Treatment (EOT) visit. Participants who did not complete the DBT phase and/or did not enter or complete the OLE phase were to complete the EOT visit, the 2-week follow-up safety visit, and the 8-week follow-up safety visit after their early discontinuation.
- DBT Placebo/OL Rimegepant (Type: PLACEBO_COMPARATOR): DBT Phase (Weeks 1 through 12): Participants received a single oral dose of placebo matching to rimegepant tablet EOD for 12 weeks.~OLE Phase (Weeks 13 through 64): Participants who continued to meet study entry criteria and had acceptable laboratory test results per protocol, entered the OLE phase and received a single oral dose of rimegepant 75 mg tablet EOD for 52 weeks. If participants had a migraine on a day that they were not scheduled to dose with rimegepant, they could take one tablet of rimegepant 75 mg on that calendar day to treat a migraine (PRN dosing).~After completing the OLE phase, participants had follow-up safety visits 2 and 8 weeks after the End-of-Treatment (EOT) visit. Participants who did not complete the DBT phase and/or did not enter or complete the OLE phase were to complete the EOT visit, the 2-week follow-up safety visit, and the 8-week follow-up safety visit after their early discontinuation.

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