Please assess the completion status of the following clinical trial:

Trial Title: Optimization of Spinal Manipulative Therapy Protocols

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: FACTORIAL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: 8.0

Eligibility Criteria:
Inclusion Criteria:~I. Pain between the 12th rib and buttocks with or without symptoms into one or both legs, which, in the opinion of the examiner, originate from the lumbar region.~II. Age 18 - 60 years~III. Oswestry disability score \> 20%~Exclusion Criteria:~I. Prior surgery to the lumbosacral spine~II. Currently pregnant~III. Currently receiving mind-body or exercise treatment for LBP from a healthcare provider (e.g., chiropractic, physical therapy, massage therapy, etc.)~IV. Neurogenic signs including any of the following: positive ipsi- or contra-lateral straight leg raise test; reflex, sensory, or strength deficit in a pattern consistent with lumbar nerve root compression

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

Study Arms:
- SMT Only (Type: EXPERIMENTAL): Patients receive 2 sessions on SMT during week 1, no additional treatment.
- SMT extended (Type: EXPERIMENTAL): 2 sessions of SMT in week 1 and 6 additional sessions of SMT during weeks 2-4.
- SMT with Activation Exercises (Type: EXPERIMENTAL): 2 sessions of SMT during week 1 and 6 additional sessions of lumbar multifidus activating exercises during weeks 2-4.
- SMT with Mobilizing Exercises (Type: EXPERIMENTAL): 2 sessions of SMT during week 1; 6 sessions of spinal mobilizing exercises during weeks 2-4.
- SMT with Mobilizing and Activation Exercises (Type: EXPERIMENTAL): 2 sessions of SMT during week 1; 6 sessions of lumbar multifidus activating exercises and spinal mobilizing exercises during weeks 2-4.
- SMT extended with Mobilizing Exercises (Type: EXPERIMENTAL): 2 sessions of SMT during week 1; 6 sessions of SMT and spinal mobilizing exercises during weeks 2-4.
- SMT extended with Activation Exercises (Type: EXPERIMENTAL): 2 sessions of SMT during week 1; 6 sessions of SMT and lumbar multifidus activating exercises during weeks 2-4.
- SMT extended with Activation and Mobilizing Exercises (Type: EXPERIMENTAL): 2 sessions of SMT during week 1; 6 sessions of SMT, multifidus activating and spinal mobilizing exercises during weeks 2-4.

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