Please assess the completion status of the following clinical trial:

Trial Title: STepped Exercise Program for Knee OsteoArthritis

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:~* Veteran enrolled at the Durham VA Medical Center (VAMC)~* Physician diagnosis of knee osteoarthritis~* Current knee joint symptoms~Exclusion Criteria:~* Currently meeting physical activity guidelines~* Currently completing Physical Therapy (PT) visits for knee OA~* Gout (in knee)~* Rheumatoid arthritis, fibromyalgia, or other systemic rheumatic disease~* Dementia~* Psychosis~* Active substance abuse disorder~* Meniscus or anterior cruciate ligament (ACL) tear in the past 6 months~* Total joint replacement, other major lower extremity surgery in the past 6 months or planned in the next 9 months~* Severe hearing impairment~* Serious/terminal illness~* Other health problem that would prohibit participation in the study and/or warrant immediate PT~* Current participation in another OA intervention study~* Unstable angina~* History of ventricular tachycardia~* Unstable chronic obstructive pulmonary disease (two hospitalizations within the previous 12 months and/or on oxygen)~* Uncontrolled hypertension (diastolic blood pressure \>110 mm/Hg or systolic \> 200mm/Hg)~* Stroke with moderate to severe aphasia

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- STEP-KOA (Type: EXPERIMENTAL): This is a stepped exercise program. It begins with an internet-based exercise training program (STEP 1). After three months, participants are assessed to see if they have achieved clinically meaningful improvement in key osteoarthritis outcomes. If so, they remain at STEP 1. If not, they move on to STEP 2, which adds telephone-based coaching. Participants are assessed again three months later. Those that still have not achieved clinically relevant improvement move on to STEP 3, which adds a series of in-person physical therapy visits.
- Arthritis Education (AE) (Type: ACTIVE_COMPARATOR): Participants in the AE control group will receive low literacy educational materials via mail every two weeks. Because STEP-KOA is a multi-component intervention, with participants receiving different numbers of Steps, it is not possible to implement a control condition that will mirror the exact intervention dose received by all participants in the STEP-KOA group. However, AE will achieve the goal of providing an active, OA-related control condition.

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