Mast cell activation syndrome
MONDO:0100004A clinically defined disease states with a largely unknown morphological background. Acute mast cell activation (MCA) is commonly seen in allergic reactions and often leads to the clinical signs and symptoms of anaphylaxis. Severe or even life‐threatening MCA may occur when the burden of mast cells is high and/or these cells are in an hyperactivated state. Mastocytosis may be associated with mast cell activation syndrome (MCAS).
Also known as: MACS, disorder of mast cell activation, mast cell activation disease
51 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
-
HPV vaccine shows promise for girls on Immune-Suppressing drugs
⭐️ VACCINE ⭐️ CompletedThis study looked at whether the HPV vaccine works in girls aged 9 to 17 who are taking medicines that weaken their immune system, such as after an organ transplant or for diseases like lupus. The goal was to see if their bodies produce enough antibodies to protect against HPV. T…
Phase: PHASE2 • Sponsor: University Hospital, Bordeaux • Aim: ⭐️ VACCINE ⭐️
Last updated Jun 27, 2026 12:36 UTC
-
Should cancer patients get antibiotics for a dubious c. diff test? small trial seeks answers
Disease control CompletedThis study looked at whether giving the antibiotic vancomycin helps cancer patients who have diarrhea and a positive screening test for C. difficile but a negative toxin test. Only 9 patients were enrolled, far fewer than planned. Researchers measured changes in C. difficile leve…
Phase: PHASE2 • Sponsor: Medical College of Wisconsin • Aim: Disease control
Last updated Jun 27, 2026 12:08 UTC
-
New drug combo shows promise in preventing transplant complications
Disease control CompletedThis early-stage study tested whether adding a drug called BMS-986004 to standard immune-suppressing medicine could help prevent acute graft-versus-host disease (GVHD) in 45 adults with blood cancers or disorders receiving a stem cell transplant. GVHD occurs when donor immune cel…
Phase: PHASE1 • Sponsor: H. Lee Moffitt Cancer Center and Research Institute • Aim: Disease control
Last updated Jun 27, 2026 12:04 UTC
-
Acid lock could fight blood infections in cancer patients
Disease control CompletedThis study tested whether a hydrochloric acid lock can help treat central line infections in 212 cancer and blood disease patients. The acid solution was placed in the line for 10 minutes, repeated three times, alongside standard antibiotics. The goal was to see if it reduces tre…
Phase: NA • Sponsor: Rigshospitalet, Denmark • Aim: Disease control
Last updated Jun 27, 2026 12:00 UTC
-
New Blood-Cleansing method boosts transplant success in High-Risk patients
Disease control CompletedThis study looked at 50 patients who needed a stem cell transplant from a partially matched donor but had antibodies that could attack the donor cells. Before transplant, they received a blood purification treatment called protein A immunoadsorption to remove those antibodies, so…
Sponsor: Ting YANG • Aim: Disease control
Last updated Jun 27, 2026 07:57 UTC
-
Gentle touch may soothe anxiety for isolated blood cancer patients
Symptom relief CompletedThis study looked at whether touch-massage can reduce anxiety in people with blood disorders (like leukemia or lymphoma) who are hospitalized in a sterile, isolated room. Sixty-two patients received three massage sessions, and researchers measured their anxiety levels before and …
Phase: NA • Sponsor: Nantes University Hospital • Aim: Symptom relief
Last updated Jun 27, 2026 14:01 UTC
-
Monthly chat group may ease isolation for young transplant patients
Symptom relief CompletedThis study tested a monthly online peer support group for young adults (ages 18-39) who had received a stem cell transplant. The group met for one hour over six months, led by a nurse and social worker. The goal was to see if the program was practical and helpful for reducing anx…
Phase: NA • Sponsor: University Health Network, Toronto • Aim: Symptom relief
Last updated Jun 27, 2026 08:08 UTC
-
Asthma drug may ease cancer treatment side effects
Symptom relief CompletedThis study tested whether montelukast (Singulair), a common asthma drug, can reduce the number and severity of infusion reactions in people receiving monoclonal antibody treatments for blood disorders. Forty adults were given montelukast along with standard premedication before t…
Phase: PHASE2 • Sponsor: University of California, San Francisco • Aim: Symptom relief
Last updated Jun 27, 2026 08:04 UTC
-
Could a common virus be behind rashes in blood cancer patients?
Knowledge-focused CompletedThis study looked for a virus called HHV6 in the skin and blood of 37 adults with blood cancers who developed a rash during hospital stays. The goal was to see if the virus is linked to the rash, which could help doctors diagnose and treat the rash more effectively. The study is …
Sponsor: Centre Hospitalier Universitaire, Amiens • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:06 UTC
-
Lower platelet transfusion threshold safe for central line placement, study suggests
Knowledge-focused CompletedThis study looked at whether it is safe to lower the number of platelets needed before placing a central line (a special IV) in patients with blood disorders. Normally, patients get a platelet transfusion if their count is below 50, but this study tested a lower trigger of 10. Th…
Sponsor: Thomas Kander • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:28 UTC
-
AI and MRI join forces to speed up cancer radiation planning
Knowledge-focused CompletedThis completed study tested whether artificial intelligence and MRI scans could help automate the planning of total marrow irradiation, a type of radiation therapy given before a bone marrow transplant for blood cancers. Researchers aimed to reduce the 10-day planning time and be…
Phase: NA • Sponsor: Istituto Clinico Humanitas • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:13 UTC
-
Massive study reveals hidden struggles of stem cell survivors
Knowledge-focused CompletedThis study looked at over 1,200 people in Denmark who had a stem cell transplant for blood diseases, some as far back as 1970. Researchers used detailed surveys to measure late effects and quality of life. The goal is to find out what medical and personal factors help survivors f…
Sponsor: Rigshospitalet, Denmark • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:05 UTC
-
Lung scans reveal hidden patterns in blood disease patients
Knowledge-focused CompletedThis completed study examined lung CT scans from 148 adults with blood diseases to identify common patterns of lung involvement. Researchers tracked how often certain radiological features appeared and counted complications. The goal was to better understand the range of lung iss…
Sponsor: New Valley University • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:59 UTC
-
Scientists gather clues on mysterious immune defects
Knowledge-focused CompletedThis study collected blood, saliva, stool, urine, and skin samples from 19 people with unknown or poorly understood immune system problems. The goal was to learn how different parts of the immune system work together. No treatments or drugs were tested. Participants were followed…
Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:58 UTC
-
Blood test norms for kids could end diagnostic delays
Knowledge-focused CompletedThis completed study measured normal tryptase levels in 402 children aged 0-18 to help doctors better diagnose mast cell disorders like mastocytosis and MCAS. Researchers used leftover blood from routine tests in children undergoing surgery. Knowing these normal ranges could redu…
Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 26, 2026 16:52 UTC