Please assess the completion status of the following clinical trial:

Trial Title: Morning Light Treatment to Improve Glucose Metabolism

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

Eligibility Criteria:
Inclusion Criteria: 34 subjects (50% female, age 40-65 y)~Subjects will be:~* Prediabetic (HbA1c 5.7% to \<6.5%)~* overweight or obese (BMI\>25 kg/m2)~* be free of moderate to severe obstructive sleep apnea (apnea-hypopnea index\<30).~The laboratory sessions will occur during women's follicular phase or women will be postmenopausal (≥6 months since last menses).~Subjects will be scheduled to participate ≥ 1 month from travel outside the central time zone, and during a time with minimal special events.~Exclusion Criteria:~* Women who are pregnant, planning on becoming pregnant, or are breastfeeding.~* Women on oral contraceptives or hormone replacement therapy will be excluded (alters OGTT and melatonin).~* Men and women who have a child at home that does not sleep through the night will be excluded.~* Adults unable to consent, individuals who are not yet adults (infants, children, teenagers), pregnant women, and prisoners are also excluded.~* History of any form of diabetes, including use of diabetes medications~* Age outside 35-70 years (we will not enroll anyone older than 70 years because of a reduced response to light).~* Smokers~* Shift workers~* Failed urine drug test (drugs of abuse, nicotine)~* Eye disease/photosensitizing medications~* Sleep medications, diagnosed sleep disorders (history of treatment may affect glucose metabolism),~* Daily beta-blocker, NSAID or melatonin use (confounds DLMO)~* History of psychiatric disorders (confounds effect of light treatment, per relevant items from Mood Disorder, Psychotic Screening and Substance Use Disorders Modules of the Structured Clinical Interview for DSM-IV Axis I Disorders - Non-Patient Edition (SCID-IV/NP) to screen for schizophrenia, bipolar depression, substance abuse, suicidal ideation, obsessive compulsive disorder, PTSD), depressive symptoms using the Center for Epidemiologic Studies - Depression (CES-D) scale~* Irregular menses~* History of cardiovascular disease (excluding hypertension), endocrine, kidney, gastrointestinal or liver disorder, seizures, and cancer.

- Gender: ALL
- Minimum Age: 35 Years
- Maximum Age: 70 Years
- Healthy Volunteers: t

Study Arms:
- Bright Light (Type: EXPERIMENTAL): Irradiance is 230 μW/m2 and lux is 500 lux.
- Dim Light (Type: PLACEBO_COMPARATOR): irradiance is reduced from 230 μW/m2 to 3 μW/m2, and lux reduced from 500 lux to 7 lux

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