Please assess the completion status of the following clinical trial:

Trial Title: Amitriptyline to Prevent Headache After Traumatic Brain Injury

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Acute mild TBI (Glasgow Coma Scale of 13-15 on emergency department evaluation, any period of loss of consciousness (LOC) \< than 30 minutes, alteration of consciousness or post-traumatic amnesia (not to exceed 24 hours)~* Ability to give consent~* Ages 18-60~* Access to a telephone~* Current headache (new headache or headache worse than prior to injury)~Exclusion Criteria:~* Does not speak English~* Diagnosed seizure disorder~* Myocardial infarction in prior 6 months~* Cardiac arrhythmia requiring medication treatment~* Prolonged Q-T interval on electrocardiogram~* Psychosis~* Intoxication on hospital admission sufficient enough to cloud the diagnosis of mild TBI~* Incarceration or homelessness~* Allergy to amitriptyline~* Current treatment with amitriptyline or other tricyclic antidepressant~* Currently taking any medication not recommended for use with amitriptyline due to the potential for Q-T interval prolongation. Examples of this include: Class I, I-A or II antiarrhythmics, TCA's, MAOI's, selected fluoroquinolones (gatifloxacin, moxifloxacin), selected antipsychotic medications (haloperidol, risperidone, quetiapine), selected antiretroviral medications, cisapride, chloroquine, chlorpromazine, prochlorperazine, promethazine, citalopram, fluoxetine, erythromycin, methadone~* History of glaucoma~* History of prostate disease or current urinary retention

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: f

Study Arms:
- Amitriptyline Immediate (Type: EXPERIMENTAL): The Amitriptyline Immediate group will begin study drug immediately after enrollment. Immediate Drug participants will be started on one 10 mg capsule each evening. The dosage will be adjusted upwards to 25 mg daily for Week 2 to a maximum of 50 mg daily by Week 3.
- Amitriptyline Delayed (Type: EXPERIMENTAL): The Amitriptyline Delayed group will start the study drug at the Day 30 visit on one 10 mg capsule each evening. The dosage will be adjusted upwards to 25 mg daily for Week 2 to a maximum of 50 mg daily by Week 3.

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