Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Lumbar Disc Herniation: later-stage trial registry
2 of 4 indexed Lumbar Disc Herniation trials are currently recruiting, with more weight in Phase 3-4.
Corpus placement: #4,115 of 28,707 conditions by registered trial count.
4 US clinical trials · 2 currently recruiting · #4,115 of 28,707 conditions by registered trial count
Lumbar Disc Herniation: 4 US clinical trials tracked, 2 recruiting.
Lumbar Disc Herniation is the subject of 4 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 0 in Phase 1-2 (earlier-stage). The most active sponsor is John O'Toole, running 1 of these trials.
Enrollment posture brief
Registry condition lumbar-disc-herniation
OPEN 2 | RECR 50% | LATE 2 | EARLY 0 | RANK #4115 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)
Lumbar Disc Herniation lists 2 open slots (50% of 4 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Lumbar Disc Herniation on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Lumbar Disc Herniation is recruiting above its size-band peers.
2 of 4 indexed trials (50%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
Open and recent trials
4 total, page 1 of 1
Subjective Intraoperative Use of Epidural Steroid Administration Following Discectomy
University of Missouri-Columbia
NCT04182997
Regional Anesthesia in Minimally Invasive Lumbar Spine Surgery
John O'Toole
NCT05029726
Post Epidural Steroid Injection Follow-up
Vanderbilt University Medical Center
NCT04207606
Methylglyoxal Evaluation in Humans
University of Kansas Medical Center
NCT05350553
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 4 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Lumbar Disc Herniation records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Lumbar Disc Herniation trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Lumbar Disc Herniation page
4 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 2 Lumbar Disc Herniation trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- John O'Toole sponsors the most Lumbar Disc Herniation trials on record, review their full trial history before evaluating a specific study. See John O'Toole's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Lumbar Disc Herniation condition card totals 4 registered trials; most-linked intervention Post Epidural Steroid Injection Follow-up; top US site state Tennessee. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.