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Locked-in syndrome (LIS) is a neurological condition characterized by the presence of sustained eye opening, quadriplegia or quadriparesis, anarthria, preserved cognitive functioning and a primary code of communication that uses vertical eye movements or blinking.
Biomarker and diagnostic research for locked-in syndrome has been reported in the published literature.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
9 clinical trials registered, 6 recruiting. Interventions under study include medical devices and procedural interventions. Pipeline includes 9 NA. Research is primarily sponsored by academic and government institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT05724173](https://clinicaltrials.gov/study/NCT05724173) |
Data assembled from 4 of 12 sources · Last updated Sep 20, 2026, 11:12 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Feasibility of the BrainGate2 Neural Interface System in Persons With Tetraplegia
NA |
Leigh R. Hochberg, MD, PhD. |
RECRUITING |
[NCT05470478](https://clinicaltrials.gov/study/NCT05470478) | iBCI Optimization for Veterans With Paralysis | NA | VA Office of Research and Development | NOT_YET_RECRUITING |
[NCT06094205](https://clinicaltrials.gov/study/NCT06094205) | Feasibility of the BrainGate2 Neural Interface System in Persons With Tetraplegia (BG-Speech-02) | NA | Leigh R. Hochberg, MD, PhD. | RECRUITING |
[NCT00912041](https://clinicaltrials.gov/study/NCT00912041) | BrainGate2: Feasibility Study of an Intracortical Neural Interface System for Persons With Tetraplegia | NA | Leigh R. Hochberg, MD, PhD. | RECRUITING |
[NCT03567213](https://clinicaltrials.gov/study/NCT03567213) | Investigation on the Cortical Communication (CortiCom) System | NA | Johns Hopkins University | RECRUITING |
66 publications have been identified in PubMed for locked-in syndrome. Research spans Case Report / Case Series (27%), Basic Science / Preclinical (23%), and Review / Meta-Analysis (20%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 18 | 27% |
Laboratory research | 15 | 23% |
Research summaries | 13 | 20% |
New treatment approaches | 7 | 11% |
Other research | 5 | 8% |
Testing and diagnosis research | 3 | 5% |
Disease patterns and progression | 3 | 5% |
Clinical study results | 2 | 3% |
Nisar M (2026). [PMID: 42228597](https://pubmed.ncbi.nlm.nih.gov/42228597/). *Neurocase*. [Review / Meta-Analysis]
Caplan LR (2026). [PMID: 41896021](https://pubmed.ncbi.nlm.nih.gov/41896021/). *Handb Clin Neurol*. [Review / Meta-Analysis]
Das JM (2026). [PMID: 32644452](https://pubmed.ncbi.nlm.nih.gov/32644452/). *Unknown Journal*. [Other]
Selvam AK (2026). [PMID: 42002556](https://pubmed.ncbi.nlm.nih.gov/42002556/). *Sci Rep*. [Gene Therapy / Novel Therapeutics]
Machado C (2026). [PMID: 41896017](https://pubmed.ncbi.nlm.nih.gov/41896017/). *Handb Clin Neurol*. [Review / Meta-Analysis]
Priori S (2026). [PMID: 41781440](https://pubmed.ncbi.nlm.nih.gov/41781440/). *Scientific reports*. [Basic Science / Preclinical]
Inoue M (2026). [PMID: 41855656](https://pubmed.ncbi.nlm.nih.gov/41855656/). *J Neural Eng*. [Gene Therapy / Novel Therapeutics]
Farisco M (2026). [PMID: 41319843](https://pubmed.ncbi.nlm.nih.gov/41319843/). *Neuroscience and biobehavioral reviews*. [Case Report / Case Series]
Jude JJ (2026). [PMID: 41920737](https://pubmed.ncbi.nlm.nih.gov/41920737/). *Cell Rep*. [Gene Therapy / Novel Therapeutics]
Korczyn AD (2026). [PMID: 41896020](https://pubmed.ncbi.nlm.nih.gov/41896020/). *Handb Clin Neurol*. [Review / Meta-Analysis]