Common variable immunodeficiency
MONDO:0015517Common variable immunodeficiency (CVID) comprises a heterogeneous group of diseases characterized by a significant hypogammaglobulinemia of unknown cause, failure to produce specific antibodies after immunizations and susceptibility to bacterial infections, predominantly caused by encapsulated bacteria.
Also known as: Common Variable Immune Deficiency, idiopathic immunoglobulin deficiency, primary antibody deficiency, primary hypogammaglobulinemia, secondary hypogammaglobulinemia, Immunoglobulin deficiency, late-onset, acquired agammaglobulinemia, acquired hypogammaglobulinemia
67 clinical trials for this condition and its sub-types.
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Broader categories
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New booster aims to shield the vulnerable from COVID-19
⭐️ VACCINE ⭐️ CompletedThis study tested an extra dose of the HIPRA COVID-19 vaccine in 241 adults with conditions like HIV, kidney disease, or autoimmune disorders that weaken the immune system. The goal was to see if the booster raises antibody levels against virus variants and remains safe. Research…
Phase: PHASE2, PHASE3 • Sponsor: Hipra Scientific, S.L.U • Aim: ⭐️ VACCINE ⭐️
Last updated Jun 26, 2026 18:38 UTC
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Gentler transplant shows promise for kids with blood diseases
Disease control CompletedThis study tests a milder chemotherapy and immune-suppressing regimen before a stem cell transplant for children and young adults with non-malignant blood disorders like sickle cell disease or immune deficiencies. The goal is to safely achieve donor cell engraftment with fewer si…
Phase: PHASE2 • Sponsor: Children's Hospital of Philadelphia • Aim: Disease control
Last updated Jul 23, 2026 00:00 UTC
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New antibody replacement therapy aims to shield vulnerable patients from serious infections
Disease control CompletedThis study tests a new intravenous immunoglobulin (IGIV) called PlasmaCap IG in adults and children aged 2 to 70 with primary immune deficiency diseases (PIDD). Participants receive regular infusions of the therapy for 12 months. The goal is to see if it prevents serious bacteria…
Phase: PHASE3 • Sponsor: Evolve Biologics • Aim: Disease control
Last updated Jul 02, 2026 00:00 UTC
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New drug shows promise for long-term immune deficiency treatment
Disease control CompletedThis study checked the long-term safety of TAK-771 in 15 Japanese patients with primary immunodeficiency disease (PID). Participants received TAK-771 injections for up to 3 years. The main goal was to monitor side effects and immune reactions. The study is now complete.
Phase: PHASE3 • Sponsor: Takeda • Aim: Disease control
Last updated Jun 27, 2026 12:35 UTC
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New antibody infusion shows promise for immune deficiency patients
Disease control CompletedThis study tested a new intravenous immunoglobulin (IVIg) treatment called Kedrion IVIg 10% in 47 people with primary immunodeficiency, a condition where the immune system cannot make enough antibodies. The goal was to see if regular infusions of this antibody therapy could preve…
Phase: PHASE3 • Sponsor: Kedrion S.p.A. • Aim: Disease control
Last updated Jun 27, 2026 12:29 UTC
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New shot option for immune deficiency shows promise in early trial
Disease control CompletedThis study tested a new medicine called TAK-881, a concentrated antibody solution given under the skin, in 65 people with primary immunodeficiency diseases (PIDD). The goal was to see how well the body absorbs it and if it is safe compared to an existing treatment (HYQVIA). Parti…
Phase: PHASE2, PHASE3 • Sponsor: Takeda • Aim: Disease control
Last updated Jun 27, 2026 09:01 UTC
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New chemo combo may lower death risk in child stem cell transplants
Disease control CompletedThis study tested two different chemotherapy drugs (Treosulfan and Busulfan) given before a stem cell transplant in 106 children with serious non-cancer diseases like immune disorders, metabolic diseases, blood disorders, and bone marrow failure. The goal was to see which drug le…
Phase: PHASE2 • Sponsor: medac GmbH • Aim: Disease control
Last updated Jun 27, 2026 08:03 UTC
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Tiny study hunts for hidden genes behind immune failures
Knowledge-focused CompletedThis study analyzed DNA from 9 patients with primary immune deficiencies whose genetic cause was unknown. Researchers used whole exome or genome sequencing to look for new mutations that might explain their condition. The goal was to identify new inborn errors of immunity, which …
Sponsor: University of Zurich • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:29 UTC
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Can a simple ultrasound spot hidden liver danger in immune disorder patients?
Knowledge-focused CompletedThis study looked at whether ultrasound and stiffness measurements of the liver and spleen can predict a serious condition called portal hypertension in people with common variable immunodeficiency (CVID). Researchers examined 250 CVID patients during routine visits, using non-in…
Sponsor: University Hospital Freiburg • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:28 UTC
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Are hidden immune defects causing your recurring infections? new study investigates.
Knowledge-focused CompletedThis study looked for hidden immune system problems in adults who get frequent or severe bacterial infections, like pneumonia or meningitis. Researchers screened 120 adults aged 18-65 to see how many had an undiagnosed primary immunodeficiency. The goal was to find out if these c…
Phase: NA • Sponsor: University Hospital, Lille • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:23 UTC
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Immune cell signals may unlock better CVID diagnosis
Knowledge-focused CompletedThis observational study compared blood samples from 24 people with antibody deficiency (CVID) and healthy volunteers. Researchers used advanced technology to measure how different immune cells respond to various triggers. The goal was to find patterns that could improve diagnosi…
Sponsor: University of California, Los Angeles • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:10 UTC
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New study sheds light on pregnancy risks for women with rare immune disorders
Knowledge-focused CompletedThis study looked at 99 women with primary immune deficiency to learn more about their pregnancies and birth outcomes. Researchers tracked infections during pregnancy and after birth, as well as how well contraception worked. The goal is to help doctors give better advice to wome…
Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:00 UTC
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Scientists probe lung microbes in immune deficiency disorder
Knowledge-focused CompletedThis study looked at how common variable immunodeficiency (CVID) changes the bacteria and immune activity in the respiratory tract. Researchers collected samples from 75 people with and without CVID to analyze microbes and gene activity. The goal was to understand why lung proble…
Sponsor: Boston University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:10 UTC
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Scientists hunt for genetic clues in rare immune disease
Knowledge-focused CompletedThis study looked at 27 adults with a severe form of primary immunodeficiency, which causes frequent infections, enlarged lymph nodes, and low white blood cells. Researchers analyzed their DNA to find known and new genetic mutations linked to the condition. The goal was to better…
Phase: NA • Sponsor: University Hospital, Strasbourg, France • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:10 UTC
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Do vaccines work as well in people with weak immune systems? new study investigates
Knowledge-focused CompletedThis study looked at how well the Pfizer COVID-19 vaccine triggers an immune response in 196 adults with weakened immune systems (due to conditions like kidney transplant, cancer, or HIV) compared to healthy adults. Researchers measured antibody levels and their ability to neutra…
Phase: PHASE4 • Sponsor: Centre Hospitalier Régional d'Orléans • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:06 UTC
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Hidden lung damage common in immune deficiency patients
Knowledge-focused CompletedThis completed study in France looked at how common bronchiectasis (permanent lung damage) is in 46 adults with primary humoral immunodeficiency, a condition that weakens the immune system. Participants had a chest CT scan and lung function tests to check for bronchiectasis. The …
Phase: NA • Sponsor: CHU de Reims • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:05 UTC
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Epidural safety checked for moms with rare immune disorders
Knowledge-focused CompletedThis study looked at whether epidural or spinal anesthesia during childbirth leads to more infections in women with primary immunodeficiencies (weak immune systems). Researchers tracked 30 women from a national registry for 28 days after delivery to see if they developed serious …
Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 26, 2026 15:52 UTC