Herpes simplex infectious disease
MONDO:0004609A group of acute infections caused by herpes simplex virus type 1 or type 2 that is characterized by the development of one or more small fluid-filled vesicles with a raised erythematous base on the skin or mucous membrane. It occurs as a primary infection or recurs due to a reactivation of a latent infection. (Dorland, 27th ed.)
Also known as: Simplexvirus caused disease or disorder, Simplexvirus disease or disorder, Simplexvirus infectious disease, herpes simplex, herpes simplex complex, herpes simplex infection, herpes simplex viral infection
37 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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New drug aims to stop kidney transplant rejection without antibodies
Disease control Recruiting nowThis study tests a drug called felzartamab in people who received a kidney transplant and later developed microvascular inflammation (MVI), a type of injury to small blood vessels in the new kidney that can lead to serious problems. The trial includes 81 participants who will rec…
Phase: PHASE2 • Sponsor: Biogen • Aim: Disease control
Last updated Aug 02, 2026 00:00 UTC
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Killer virus turned against childhood brain cancer
Disease control Recruiting nowThis early-stage trial tests whether a specially engineered herpes virus (G207) is safe to inject directly into the brain tumors of children whose cancer has returned. Up to 24 children aged 3 to 21 will receive the virus, and some will also get a small dose of radiation to help …
Phase: PHASE1 • Sponsor: M.D. Anderson Cancer Center • Aim: Disease control
Last updated Jul 31, 2026 00:00 UTC
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Could a cold sore virus treatment save ICU pneumonia patients?
Disease control Recruiting nowThis study tests whether the antiviral drug acyclovir helps people on breathing machines who have pneumonia and also have herpes simplex virus (HSV) in their lungs. About 616 adults in intensive care will be randomly assigned to receive acyclovir or no antiviral treatment. The go…
Phase: PHASE3 • Sponsor: Jena University Hospital • Aim: Disease control
Last updated Jul 25, 2026 00:00 UTC
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Can 'Supercharged' donor cells beat viruses that drugs Can't?
Disease control Recruiting nowThis study tests whether giving patients special donor immune cells (called CD45RA-depleted DLI) can treat viral infections that persist after a stem cell transplant. The trial involves 30 participants who have not improved with standard antiviral drugs. Researchers will measure …
Phase: PHASE1, PHASE2 • Sponsor: Ruijin Hospital • Aim: Disease control
Last updated Jun 27, 2026 14:03 UTC
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Can donor cells stop viruses after transplant?
Disease control Recruiting nowThis study tests whether giving patients donor-derived immune cells (VSTs) on a regular schedule can prevent dangerous viral infections after a stem cell transplant. 180 participants will be randomly assigned to receive VSTs either on a fixed schedule or only when a virus is dete…
Phase: PHASE2 • Sponsor: Children's Hospital Medical Center, Cincinnati • Aim: Disease control
Last updated Jun 27, 2026 11:01 UTC
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Eye injection could stop damaging blood vessels in Herpes-Related blindness
Disease control Recruiting nowThis study tests whether injecting anti-VEGF medication directly into the cornea can safely reduce abnormal blood vessel growth caused by herpes simplex keratitis. One hundred adults will receive either the injection plus antiviral eye drops or standard antiviral drops alone. Res…
Phase: PHASE1, PHASE2 • Sponsor: Second Affiliated Hospital, School of Medicine, Zhejiang University • Aim: Disease control
Last updated Jun 27, 2026 08:09 UTC
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Supercharged donor cells take on viruses after transplant
Disease control Recruiting nowThis study tests whether specially grown donor immune cells (viral-specific T-cells) can safely treat viral infections that often occur after a stem cell transplant. These infections can be serious and sometimes don't respond to standard antiviral drugs. The approach aims to boos…
Phase: PHASE1, PHASE2 • Sponsor: Children's Hospital Medical Center, Cincinnati • Aim: Disease control
Last updated Jun 27, 2026 08:04 UTC
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Daily acyclovir may stop herpes Flare-Ups in rheumatic patients
Prevention Recruiting nowThis study tests whether taking acyclovir daily can prevent herpes simplex outbreaks in people with autoimmune rheumatic diseases like lupus or rheumatoid arthritis. 62 participants will receive either acyclovir or a placebo for 12 months and be monitored for 24 months total. The…
Phase: PHASE4 • Sponsor: University of Sao Paulo General Hospital • Aim: Prevention
Last updated Aug 07, 2026 00:00 UTC
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Scientists hunt for genetic clues to severe viral infections
Knowledge-focused Recruiting nowThis study looks at people who have had unusually severe or long-lasting viral infections, like serious cases of herpes, HPV, or the flu. Researchers want to find out if these people have hidden immune system or genetic problems that make them more vulnerable. Up to 600 participa…
Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) • Aim: Knowledge-focused
Last updated Aug 18, 2026 05:00 UTC
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Scientists track rare genetic disorder to unlock its secrets
Knowledge-focused Recruiting nowThis study follows 600 people with GATA2 deficiency, a genetic disorder affecting the immune system and other body systems. Researchers aim to understand the full range of health problems it causes and why it affects people differently. Participants will have yearly check-ups for…
Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) • Aim: Knowledge-focused
Last updated Aug 18, 2026 05:00 UTC
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Scientists launch major study to track viruses in healthy and immunocompromised patients
Knowledge-focused Recruiting nowThis study aims to collect samples and medical information from people of all ages who have or have been exposed to viral infections, including COVID-19 and herpes. Researchers want to understand how viruses affect healthy individuals versus those with weakened immune systems. Pa…
Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) • Aim: Knowledge-focused
Last updated Aug 09, 2026 00:00 UTC
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Scientists hunt for genetic clues behind rare, Life-Threatening EBV disease
Knowledge-focused Recruiting nowThis study aims to find genetic mutations that cause chronic active Epstein-Barr virus (CAEBV), a rare and serious disease mainly affecting children and young adults. Researchers will analyze blood and tissue samples from up to 50 patients and 150 relatives, plus anonymous donor …
Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) • Aim: Knowledge-focused
Last updated Jul 30, 2026 00:00 UTC