Please assess the completion status of the following clinical trial:

Trial Title: Clinical Study to Evaluate the Effect of pH on Pain Upon Local Anesthetic Administration.

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* patients at MGH Center for Pain Medicine who have clinical indication for undergoing diagnostic medial branch block of nerves to facet joints.~Exclusion Criteria:~* contraindication to the clinical procedure~* do not speak English

- Gender: ALL
- Minimum Age: 19 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- normal saline (Type: PLACEBO_COMPARATOR): None
- lidocaine (Type: ACTIVE_COMPARATOR): None
- alkalinized lidocaine (Type: EXPERIMENTAL): None

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