Condition (MeSH)
Landau-Kleffner Syndrome
ClinicalTrials.gov lists 3 trials for Landau-Kleffner Syndrome or a narrower condition beneath it.
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Trials per phase
3 of the 3 trials are tagged with Landau-Kleffner Syndrome itself; the rest are tagged with a narrower condition beneath it.
When did Landau-Kleffner Syndrome trials start? (3)
Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.
Trials over time, by phase
- Phase 1
- Phase 2/3
- Observational
Top of scale: 1
Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.
| Year | Trials started |
|---|---|
| 2017 | 1 |
| 2016 | 1 |
| 2010 | 1 |
No forecast is made for this condition: it averages 0.0 trial starts a year over the five years to September, under the 5 a year the method needs.
Recruitment duration, a model prediction: none of the 3 trials evaluated at the 2026-10-09 snapshot is predicted and still running. Source: ClinicalTrials.gov / AACT (CTTI), public domain.
What phase are Landau-Kleffner Syndrome trials in? (3)
Shown in this order: phase order.
Show the trials by phase as a table
| Phase | Trials |
|---|---|
| Phase 1 | 1 |
| Phase 2/3 | 1 |
| Observational | 1 |
How many Landau-Kleffner Syndrome trials are recruiting? (3)
Shown in this order: the order a trial moves through, from not yet recruiting to unknown.
| Status | Trials |
|---|---|
| Completed | 1 |
| Terminated | 1 |
| Unknown status | 1 |
Status as registered on ClinicalTrials.gov. Each trial is counted once.
Which publications cover Landau-Kleffner Syndrome? (6)
Shown in this order: major-topic papers first, then newest, then most linked to trials.
| Publication | Journal | Year | Major topic |
|---|---|---|---|
| Acetazolamide for electrical status epilepticus in slow-wave sleep. | Epilepsia | 2015 | Yes |
| Encephalopathy with status epilepticus during slow sleep: "the Penelope syndrome". | Epilepsia | 2009 | Yes |
| Landau-Kleffner syndrome responsive to levetiracetam. | Epilepsy & behavior : E&B | 2003 | Yes |
| Inhibition of epileptiform activity by neuropeptide Y in brain tissue from drug-resistant temporal lobe epilepsy patients. | Scientific reports | 2019 | No |
| Autistic regression with and without EEG abnormalities followed by favourable outcome. | Brain & development | 2010 | No |
Showing 5 of 6 publications.
Prevalence (3)
Shown in this order: jurisdiction, then disease name. Orphanet observation for the mapped ORPHA concept; the mapping relation column says whether that concept is exactly this condition or broader or narrower.
| Orphanet disease | Type | Class | Geography | Jurisdiction | Mapping relation |
|---|---|---|---|---|---|
| Landau-Kleffner syndrome | Point prevalence | 1-9 / 1 000 000 | Japan | Not stated | Unspecified |
| Landau-Kleffner syndrome | Point prevalence | 1-9 / 1 000 000 | Japan | Not stated | Exact |
| Landau-Kleffner syndrome | Point prevalence | 1-9 / 1 000 000 | Japan | Not stated | Exact |
Rare-disease identity (2)
Shown in this order: exact, broader, narrower, other.
| Orphanet disease | ORPHA code | Relation | Source |
|---|---|---|---|
| Landau-Kleffner syndrome | 98818 | Exact | Orphanet Rare Disease Ontology (ORDO) |
| Landau-Kleffner syndrome | 98818 | Exact | Orphadata Science knowledge files, Product 1 |
Not on this page
Not measured: delivery record.
Checked, with nothing recorded for this condition: lead sponsors, serious adverse events in this condition's trials, and sub-conditions in mesh.
Not computed for conditions with fewer than 10 trials: drugs tested.