Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Olfactory Disorder: early-phase trial registry
2 of 4 indexed Olfactory Disorder trials are currently recruiting, with more weight in Phase 1-2.
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
Olfactory Disorder: 4 US clinical trials tracked, 2 recruiting.
Olfactory Disorder is the subject of 4 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 2 in Phase 1-2 (earlier-stage). The most active sponsor is Washington University School of Medicine, running 1 of these trials.
Enrollment posture brief
Registry condition olfactory-disorder
OPEN 2 | RECR 50% | LATE 0 | EARLY 2 | RANK #4115 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)
Olfactory Disorder 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 Olfactory Disorder 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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Olfactory Disorder 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
Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT for Long COVID)
Medical University of South Carolina
NCT05855369
Sinus Disease in Young Children With Cystic Fibrosis
University of California, Los Angeles
NCT06191640
cAMP (Cyclic Adenosine Monophosphate) Levels in the Nose
University of Washington
NCT01332825
Smell Changes & Efficacy of Nasal Theophylline
Washington University School of Medicine
NCT03990766
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Olfactory Disorder records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Olfactory Disorder 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 Olfactory Disorder page
4 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 2 Olfactory Disorder trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Washington University School of Medicine sponsors the most Olfactory Disorder trials on record, review their full trial history before evaluating a specific study. See Washington University School of Medicine'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 Olfactory Disorder condition card totals 4 registered trials; most-linked intervention Saline Nasal; top US site state Washington. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.