Infectious encephalitis
MONDO:0020067An acute infectious process that affects the brain tissue. It is usually caused by viruses and less often by bacteria, parasites, and fungi.
Also known as: encephalitis infection
50 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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Could donor cells beat a deadly brain virus?
Disease control CompletedThis early-phase study tested whether infusing virus-fighting immune cells from a healthy donor could safely treat progressive multifocal leukoencephalopathy (PML), a serious brain infection in people with weak immune systems. Sixty adults with PML received up to three infusions …
Phase: EARLY_PHASE1 • Sponsor: National Institute of Neurological Disorders and Stroke (NINDS) • Aim: Disease control
Last updated Jul 19, 2026 00:00 UTC
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New hope for HIV patients with rare brain disease?
Disease control CompletedThis study tested whether adding a powerful HIV drug called FUZEON® to standard antiretroviral therapy could help people with HIV who also have a rare brain infection called PML. PML is caused by a virus that attacks the brain when the immune system is weak. The goal was to see i…
Phase: PHASE2 • Sponsor: French National Agency for Research on AIDS and Viral Hepatitis • Aim: Disease control
Last updated Jun 27, 2026 12:03 UTC
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Experimental drug aims to rebuild immunity against rare brain infection
Disease control CompletedThis early-phase study tested a drug called NT-I7 in 12 adults with progressive multifocal leukoencephalopathy (PML), a serious brain infection that occurs in people with weakened immune systems. The goal was to see if NT-I7 could increase the number of infection-fighting white b…
Phase: EARLY_PHASE1 • Sponsor: National Institute of Neurological Disorders and Stroke (NINDS) • Aim: Disease control
Last updated Jun 27, 2026 07:57 UTC
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Can we predict who will relapse after brain inflammation?
Knowledge-focused CompletedThis study examines a rare brain disease called anti-LGI1 encephalitis, where the immune system attacks a protein in the brain, causing memory loss, confusion, and seizures. Researchers will review medical records from 112 patients across five hospitals in Eastern China to see ho…
Sponsor: Shen Chun-Hong • Aim: Knowledge-focused
Last updated Jul 25, 2026 00:00 UTC
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Hunt for tick virus in limousin: 878 tested
Knowledge-focused CompletedThis completed study tested blood samples from 878 people in Limousin, France, for antibodies against tick-borne encephalitis virus (TBEV). The goal was to see if the virus is present in the region, especially in patients with Lyme disease or neurological symptoms. Researchers al…
Sponsor: University Hospital, Limoges • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:05 UTC
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Researchers review best acyclovir dose for obese patients with rare brain infection
Knowledge-focused CompletedThis completed study reviewed medical records of 50 obese adults with HSV encephalitis (a brain infection) to see how different ways of calculating acyclovir dose affect survival. Researchers looked at patients treated between 2013 and 2019 at six hospitals. The goal was to find …
Sponsor: Methodist Health System • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC
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Scientists probe gene link to rare brain disease after infections
Knowledge-focused CompletedThis study looks at how a specific gene mutation (RANBP2) affects the immune system in people with Acute Necrotizing Encephalopathy type 1 (ANE1), a rare brain condition triggered by infections. Researchers compared blood samples from 35 participants, including patients with the …
Phase: NA • Sponsor: University Hospital, Montpellier • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:02 UTC
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MRI contrast dye may skew brain scans, study finds
Knowledge-focused CompletedThis study looked at how gadolinium, a dye used in MRI scans, changes the QSM signal in the brain's white matter. 73 patients with inflammatory central nervous system conditions had MRI scans before and after receiving gadolinium. The goal was to measure any differences in the si…
Sponsor: Fondation Ophtalmologique Adolphe de Rothschild • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:09 UTC
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Scientists uncover how PML virus hides from immune system
Knowledge-focused CompletedThis study looked at 22 people with PML, a rare brain infection caused by the JC virus in those with weakened immune systems. Researchers collected blood, urine, and spinal fluid samples over six months to measure immune checkpoint molecules and antiviral responses. The goal was …
Phase: NA • Sponsor: University Hospital, Toulouse • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:07 UTC