Progressive multifocal leukoencephalopathy
MONDO:0016318Progressive multifocal leukoencephalopathy (PML) is a neurological disorder that damages the myelin that covers and protects nerves in the white matter of the brain. It is caused by the JC virus (JCV). By age 10, most people have been infected with this virus, but itrarelycauses symptoms unless the immune system becomes severely weakened.The disease occurs, rarely, in organ transplant patients; people undergoing chronic corticosteroid or immunosuppressive therapy; and individuals with cancer, such as Hodgkins disease, lymphoma, and sarcoidosis. PML is most common among individuals with acquired immune deficiency syndrome (AIDS).
Also known as: PML, progressive multifocal leukoencephalitis, leukoencephalopathy, progressive multifocal
65 clinical trials for this condition and its sub-types.
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Molecular map may guide treatment for mysterious inflammatory illnesses
Disease control CompletedThis study tested whether analyzing a patient's DNA and RNA could help doctors pick the right drug for inflammatory diseases that don't fit standard categories. 32 adults with at least two affected organs (including skin) received one of six targeted therapies based on their mole…
Phase: PHASE2 • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Disease control
Last updated Jun 27, 2026 12:36 UTC
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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 Jun 27, 2026 12:28 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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Rural patients get Hospital-Level care at home in landmark trial
Disease control CompletedThis study looked at whether giving hospital-level care to acutely ill adults in their own homes in rural areas works well. 160 people with various conditions like infections, heart failure, or COPD took part. The goal was to see if this approach could lower costs and help patien…
Phase: NA • Sponsor: Brigham and Women's Hospital • Aim: Disease control
Last updated Jun 27, 2026 07:57 UTC
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New rapid test for infection and inflammation put to the test
Diagnosis CompletedThis study looked at how well a new, quick finger-prick test (LumiraDx CRP) measures CRP levels compared to a standard lab test. CRP is a marker of infection, inflammation, or tissue injury. 79 adults with symptoms of these conditions took part. The goal was to see if the new tes…
Sponsor: LumiraDx UK Limited • Aim: Diagnosis
Last updated Jun 27, 2026 13:07 UTC
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One-Hour brain infection test could save lives
Diagnosis CompletedThis study tested a new rapid diagnostic panel called QIAstat-Dx that can detect 15 different bacteria, viruses, and fungi causing meningitis and encephalitis in just one hour. Researchers compared its accuracy against standard lab tests using 170 stored spinal fluid samples. If …
Sponsor: IRCCS Azienda Ospedaliero-Universitaria di Bologna • Aim: Diagnosis
Last updated Jun 27, 2026 08:05 UTC
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New PET tracer aims to light up hidden infections
Diagnosis CompletedThis early study tested a new radioactive tracer called 18F-FDS in 16 people with suspected bacterial or fungal infections. The tracer is designed to light up infection sites on PET/CT scans, helping doctors see exactly where an infection is. The goal was to check how the tracer …
Sponsor: Johns Hopkins University • Aim: Diagnosis
Last updated Jun 27, 2026 08:03 UTC
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New PET scan technique aims to sniff out hidden infections
Diagnosis CompletedThis early study tested whether a special PET scan using a radioactive form of vitamin B9 (11C-PABA) can help doctors see infections deep inside the body. Researchers scanned 13 healthy people and patients with known or suspected infections. The goal was to see if this method can…
Sponsor: Johns Hopkins University • Aim: Diagnosis
Last updated Jun 27, 2026 08:03 UTC
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Study explores how family and friends impact caregiver health
Knowledge-focused CompletedThis completed study looked at how the social networks of caregivers affect their stress and health when caring for someone with an inherited disease. Researchers surveyed over 680 participants, including family members and formal caregivers, to understand caregiving burden and s…
Sponsor: National Human Genome Research Institute (NHGRI) • Aim: Knowledge-focused
Last updated Jul 02, 2026 00:00 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
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ICU antibiotic dosing: what really matters?
Knowledge-focused CompletedThis study looked at 156 critically ill patients to find out what factors help achieve the right levels of beta-lactam antibiotics in the blood. Researchers collected clinical data and used therapeutic drug monitoring to see which patients reached target concentrations. The goal …
Sponsor: Centre Hospitalier Universitaire de Nīmes • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:01 UTC