Please assess the completion status of the following clinical trial:

Trial Title: Evaluation of Angioplasty in the Treatment of Chronic Cerebrospinal Venous Insufficiency (CCSVI) in Multiple Sclerosis

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

Eligibility Criteria:
Inclusion Criteria:~* Patients who are willing to comply with the protocol requirements and can be contacted by telephone~* Patients 18-60 years of age~* Patients with clinically definite multiple sclerosis by Polman criteria~* Patients with a history of MS as defined above with an EDSS between 3-6.~* Patients with a significant stenosis of the internal jugular or azygos vein on the basis of magnetic resonance venography or Doppler ultrasound.~Exclusion Criteria:~* Patients with renal insufficiency based on an estimated GFR \<45~* Patients with a known severe allergy to iodine or gadolinium-based contrast agents which cannot be adequately pre-medicated~* Patients with a known allergy to nickel~* Patients who pregnant~* Patients with a contraindication to anticoagulation or anti-platelet medication~* Patients with a contraindication to drugs used for conscious sedation during interventional procedures, including Versed and Fentanyl~* Patients with a history of deep venous thrombosis of the lower extremities~* Patients with occlusion of the right and left common femoral veins~* Patients who have had any changes in their disease modifying drug regimen for MS during the 6 months prior to enrollment in this trial. This would include the addition of any new medications, a change in the dosage of any medications, or the removal of any medications from a patient's drug regimen~* Patients with a life expectancy \<18 months~* Patients who are currently enrolled or who plan to enroll in other investigations that conflict with follow-up testing or confounds data in this trial

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

Study Arms:
- Treatment of CCSVI with Angioplasty (Type: EXPERIMENTAL): At the time of venography, these patients will have had a significant lesion (blockage) in the internal jugular and/or the azygos vein that will be treated with angioplasty.
- Observation of CCSVI (Type: SHAM_COMPARATOR): At the time of venography, these patients will have had a significant lesion (blockage) in the internal jugular and/or the azygos vein that will not be treated with angioplasty. These patients will be observed after treatment and compared to those patients who received treatment.

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