Please assess the completion status of the following clinical trial:

Trial Title: The Effect of Ozone Therapy for Lumbar Herniated Disc

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Diagnosis of herniated disc by surgeons from participating hospitals~* Sciatic pain of 5 or more on Visual Analogue Scale~* Pain radiated to appropriate area according to herniated disc~* On waiting list for disc surgery at one of participating hospitals~Exclusion Criteria:~* Inability to fill out questionnaires (VAS, Roland Morris, SF12)~* Calcified or migrated herniated disc~* Herniated disc with indications for laminectomy or arthrodesis~* Clinically relevant partial paralysis~* Simultaneous cervical and dorsal symptomatic herniated discs~* Previous lumbar spine surgery~* Presence of other spinal pathology~* Significant glucose-6-phosphate-dehydrogenase deficit~* Allergy to ozone~* Treatment with oral anticoagulants

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 75 Years
- Healthy Volunteers: f

Study Arms:
- 1 (Type: ACTIVE_COMPARATOR): Discectomy/micro discectomy
- 2 (Type: ACTIVE_COMPARATOR): Intradiscal ozone infiltration
- 3 (Type: ACTIVE_COMPARATOR): Intradiscal oxygen infiltration (control arm)

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