Please assess the completion status of the following clinical trial:

Trial Title: Enhancement of Cerebral Vasoreactivity and Cognition by Intranasal Insulin in Type 2 Diabetes

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: OTHER
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~Diabetes group:~* 30 men and women aged \>50 years old diagnosed with T2DM and treated \> 5 years with oral agents~* Diabetes severity will be assessed from diabetes duration, hemoglobin A1C, and fasting glucose levels.~Control group:~* 30 healthy men and women aged \>50 years selected to have the same age and sex distributions as the diabetic subjects~* Normotensive, not treated for any systemic disease, and have normal fasting blood glucose.~Exclusion Criteria:~* Type 1 Diabetes Mellitus~* History of severe hypoglycemia or hypoglycemic episode during home baseline monitoring~* Positive stress test for CAD or other ischemic conditions~* Carotid stenosis \> 50% by medical history~* History of a clinically documented stroke~* Treatment with any medications administered intranasally including intranasal steroids~* Any previous adverse or allergic reactions to insulin~* Acute or unstable medical condition including Myocardial infarction or major illness and surgery within six months~* Liver or renal failure or transplant~* Uncontrolled hypertension (systolic BP \>180 and/or diastolic BP \>100 mm Hg or subjects taking more than 3 antihypertensive medications)~* Seizure disorders~* Malignant tumors~* Clinical dementia (by history) or inability to follow details of the protocol(MMSE (Mini Mental Status Exam) score (≥3 points below the Comparative Normal Value for the subject's age group and education level, or ≤ 24)~* Current recreational drug or alcohol abuse~* Morbid obesity (BMI \>40)~* Inability to obtain permission for participation from the primary care physician~* Transcranial Doppler (TCD) exclusion criterion - poor insonation window and TCD signal~* MR exclusion criteria - any metal or bioimplants not compatible with 3 Tesla MRI and claustrophobia~* Clinically significant and movement limiting hip, knee and/or back disorders or injury, and rheumatoid arthritis

- Gender: ALL
- Minimum Age: 50 Years
- Maximum Age: 85 Years
- Healthy Volunteers: t

Study Arms:
- Insulin vs. placebo (Type: EXPERIMENTAL): Comparisons of acute effects of intranasal insulin or placebo (saline) on cerebral blood flow and cognition in healthy controls and type 2 diabetes.
- Healthy vs. Diabetic (Type: OTHER): Comparisons of acute effects of intranasal insulin or placebo (saline) on cerebral blood flow and cognition in healthy controls and type 2 diabetes.

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