Please assess the completion status of the following clinical trial:

Trial Title: Botox Injection in Treatment of Chronic Migraine

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE1/PHASE2
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Informed and written consent~* Chronic migraine with or without aura defined in International Classification of Headache Disorders (ICHD)-3 criteria~* Failed at least 3 oral migraine prophylactic treatments~* Duration of migraine at least 1 year before inclusion~* Start of migraine before participant turned 50 years~* Participant can make a distinction between migraine and other types of headache~Exclusion Criteria:~* If the criteria for medication-overuse headache (MOH) is fulfilled~* Heart or lung disease~* Any kind of systematic or local disease or illness that may significantly increase the risk of complications for the procedure related to injection~* Psychiatric illness that hinders participation in the study~* Known pregnancy or breast feeding~* Inadequate use of contraceptives~* Overuse or abuse of opioids~* Abuse of medications, narcotics or alcohol~* Anomalies which hinder or impede the used method of injection~* Allergy or any other hypersensitivity reactions against marcain, lidocaine, xylocain or adrenalin, botulinum toxin type A, Botox or any of it's constituents or any other related medication~* Treatment with medication that can interact with botulinum toxin type A

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- Botulinum Toxin (Type: EXPERIMENTAL): The patients will be injected with 25 IU of Botulinum Toxin Type A towards both the right and left sphenopalatine ganglion, a total of 50 IU.

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