A Prospective Study to Evaluate Clinical Outcomes in Anti-LGI1 Encephalitis

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-100
SponsorShen Chun-Hong

About this trial

Anti-leucine-rich glioma-inactivated 1 (LGI1) encephalitis has been increasingly identified as the second most common type of autoimmune encephalitis after anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. It presents with acute or subacute onset of epileptic seizures, anterograde amnesia, behavior disturbances, sleep disorders and hyponatremia. In most patients with anti-LGI1 encephalitis, immunotherapy is successful in treating the encephalitis. However, relapses, chronic epilepsy, cognitive declines and psychiatric problems have been reported in some cases.

So far, prospective studies to evaluate its clinical outcomes still remain limited. In this project, the investigators will use clinical features and advanced paraclinical examinations to prospectively investigate the clinical outcomes and the associated factors in patients with anti-LGI1 encephalitis.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Meet the 2016 consensus diagnostic criteria for anti-LGI1 encephalitis.

Newly diagnosed, and during the acute stage before study enrollment.

Sign the informed consent form.

Disqualifiers

with the diagnosis of epilepsy, stroke, cerebral trauma, and/or other nervous system disease prior to the onset of encephalitis.

with coexisting antibodies, such as anti-contactin-associated protein 2 (CASPR2) antibody.

Lost to follow-up.

Trial population

the patients with anti-LGI1 encephalitis

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

seizure outcomes

The incidence of different seizure outcomes and associated factors will be analyzed.

Time frame
1 year, 2 year
2

Clinical severity and recovery 1

modified Rankin scale, ranging from 0-6, higher scores mean a worse outcome

Time frame
1 year, 2 year
3

Clinical severity and recovery 2

clinical assessment scale for autoimmune encephalitis, ranging from 0-27, higher scores mean a worse outcome

Time frame
1 year, 2 year
4

Incidence of recurrence

a relapse of encephalitis

Time frame
1 year, 2 year

Secondary outcomes

1

Memory assessment 1

the Wechsler Memory Scale, high score means a good memory.

Time frame
1 year, 2 year
2

Memory assessment 2

Rey Auditory Verbal Learning Test (RAVLT), high score means a good vebal episodic memory.

Time frame
1 year, 2 year
3

Brain volume

with 3T magnetic resonance imaging (MRI), volumes of the whole hippocampus, hippocampal subfields and other relevant regions were determined using FreeSurfer. The unit of volume is described as mm3.

Time frame
1 year, 2 year

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Shen Chun-Hong

Lead sponsor

Second Affiliated Hospital, School of Medicine, Zhejiang University

Sponsor institution