Please assess the completion status of the following clinical trial:

Trial Title: Effectiveness of Dry Needling of the Sternocleidomastoid in Patients With Cervicogenic Headaches

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

Eligibility Criteria:
Inclusion Criteria:~1. Age between 18-65 years old~2. Primary complaint of cervicogenic headache~3. Restricted cervical Range of motion~4. Neck Disability Index \> 20 points~Exclusion Criteria:~1. Red flags identified during the patients physical therapy initial evaluation (i.e. tumor, fracture, metabolic diseases, RA, osteoporosis, prolonged history of steroid use, symptoms of vertebrobasilary insufficiency, pregnancy, cervical spinal stenosis, bilateral upper extremity symptoms etc.~2. Use of blood thinners~3. History of whiplash injury within the past six weeks~4. Evidence of central nervous system involvement, to include hyperreflexia, sensory disturbances in the hand, intrinsic muscle wasting of the hands, unsteadiness during walking, nystagmus, loss of visual acuity, impaired sensation of the face, altered taste, the presence of pathological reflexes (i.e. positive Hoffman's and/or Babinski reflexes), etc.~5. Two or more positive neurologic signs consistent with nerve root compression, including any two of the following:~   1. Muscle weakness involving a major muscle group of the upper extremity~  2. Diminished upper extremity muscle stretch reflex (biceps brachii, brachioradialis, or triceps)~  3. Diminished or absent sensation to pinprick in any upper extremity dermatome~6. Prior surgery to the neck or thoracic spine~7. Chiropractic, Physical Therapy, or Acupuncture treatment for their neck pain in the last 6-months~8. Workers compensation or pending legal action regarding their headaches~9. Insufficient English language skills to complete all questionnaires~10. Inability to comply with treatment and follow-up schedule

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- standard care group (Type: NO_INTERVENTION): Normal manual therapy interventions Clinician will decide normal course of treatment
- Dry needling (Type: EXPERIMENTAL): Dryneedling group Clinician will decide normal course of treatment and dry needling of the Sternocleidomastoid muscle (SCM) muscle will be added to that treatment

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