Please assess the completion status of the following clinical trial:

Trial Title: Study of Sulfasalazine in Treating Painful Neuropathy

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

Eligibility Criteria:
Inclusion Criteria:~* Painful neuropathy~* Michigan Neuropathy Screening Instrument score of 3 or greater~* no obvious alternative explanation for neuropathy~* average baseline pain \> 4/10~Exclusion Criteria:~* other severe pain~* anticipated difficulty weaning off medications~* past or current psychiatric disorder as determined by Mini International Neuropsychiatric Interview~* medical contraindication to sulfasalazine~* not proficient in English (due to heavy use of questionaires)~* pregnant or breast feeding women

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

Study Arms:
- sulfasalazine (Type: EXPERIMENTAL): 1 g oral twice daily for 2 weeks
- placebo (Type: PLACEBO_COMPARATOR): oral placebo pill twice daily for two weeks.

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