What is Bradykinin?

A 9-amino-acid peptide that widens blood vessels and causes swelling; given in research studies of blood flow.

Bradykinin in the library · · Human Trials · What are peptides?

9 registered trials · 385 indexed papers · 443 human / 327 animal studies

From the PeptideWhiz library entry. "As described" sections summarize claims made in the sources; they are not PeptideWhiz endorsements.

What it is

A 9-amino-acid peptide that widens blood vessels and causes swelling; given in research studies of blood flow.

Type: Peptide.

Definition (National Library of Medicine)

“A nonapeptide messenger that is enzymatically produced from kallidin in the blood where it is a potent but short-lived agent of arteriolar dilation and increased capillary permeability. Bradykinin is also released from mast cells during asthma attacks, from gut walls as a gastrointestinal vasodilator, from damaged tissues as a pain signal, and may be a neurotransmitter.”

  • MeSH: Bradykinin

Human research

The registered human trials and peer-reviewed human studies linked below are listed from ClinicalTrials.gov and PubMed. A study is linked only when Bradykinin is one of its interventions, or is named in the study title or subject headings.

Listing a study does not mean it showed a benefit, and it is not medical advice.

Registered human trials (9)

Peer-reviewed studies (385)

PaperAuthorsJournalYearType
Modest Contribution of Bradykinin to Blood Pressure Reduction by Sacubitril/Valsartan in Chronic Heart FailureGupta DK et al.Circulation. Heart failure2026Randomized Controlled Trial
Oral deucrictibant for prophylaxis of hereditary angioedema attacks (CHAPTER-1): primary analysis of a randomised, double-blind, placebo-controlled, phase 2 trialAygören-Pürsün E et al.The Lancet. Haematology2026Randomized Controlled Trial
Long-term prophylactic treatment with deucrictibant for angioedema due to acquired C1-inhibitor deficiencyde Lange M et al.The Journal of allergy and clinical immunology2025Clinical Trial
Pathophysiology of COVID-19: A Post Hoc Analysis of the ICAT-COVID Clinical Trial of the Bradykinin Antagonist IcatibantMalchair P et al.Pathogens (Basel, Switzerland)2025Randomized Controlled Trial
Impact of Dental Procedures on Hereditary Angioedema Attacks: An Exploratory Observational StudyNadasan V et al.Oral health & preventive dentistry2025Observational Study
The first-in-human study of QHRD106 functioning as a safe and effective long-acting kallikrein drug potentially aiding ischemic strokeHuang L et al.Expert opinion on investigational drugs2024Randomized Controlled Trial
Deucrictibant for angioedema due to acquired C1-inhibitor deficiency: A randomized-controlled trialPetersen RS et al.The Journal of allergy and clinical immunology2024Randomized Controlled Trial
The Role of the Kinin System and the Effect of Des-Arginine(9)-Bradykinin on Coagulation and Platelet Function in Critically Ill COVID-19 Patients: A Secondary Analysis of a Prospective Observational StudyEdinger F et al.International journal of molecular sciences2024Observational Study
Inhibition of bradykinin in SARS-CoV-2 infection: a randomised, double-blind trial of icatibant compared with placebo (ICASARS)Bailey M et al.BMJ open2023Clinical Study
The effect of bradykinin 1 receptor antagonist BI 1026706 on pulmonary inflammation after segmental lipopolysaccharide challenge in healthy smokersGress C et al.Pulmonary pharmacology & therapeutics2023Randomized Controlled Trial
Safety, efficacy, and pharmacokinetics of icatibant treatment in Japanese pediatric patients with hereditary angioedema: A phase 3, open-label studyHide M et al.The Journal of dermatology2023Clinical Trial, Phase III
A single-blind, randomized, crossover study on the efficacy of icatibant for sweating-induced dermal pain (icatibant for sweating-induced dermal pain)Takahagi S et al.Medicine2023Randomized Controlled Trial
Bradykinin B(2) receptor blockade and intradialytic hypotensionGamboa JL et al.BMC nephrology2023Randomized Controlled Trial
Three-Day Icatibant on Top of Standard Care in Patients With Coronavirus Disease 2019 Pneumonia: A Randomized, Open-Label, Phase 2, Proof-of-Concept TrialMalchair P et al.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America2023Randomized Controlled Trial
Efficacy of human C1 esterase inhibitor concentrate for treatment of ACE-inhibitor induced angioedemaStrassen U et al.The American journal of emergency medicine2023Randomized Controlled Trial
Dysregulation of the kallikrein-kinin system in bronchoalveolar lavage fluid of patients with severe COVID-19Martens CP et al.EBioMedicine2022Observational Study
Impaired Kallikrein-Kinin System in COVID-19 Patients' SeverityAlfaro E et al.Frontiers in immunology2022Observational Study
Icatibant use in Brazilian patients with hereditary angioedema (HAE) type 1 or 2 and HAE with normal C1-INH levels: findings from the Icatibant Outcome Survey Registry StudyGrumach AS et al.Anais brasileiros de dermatologia2022Observational Study
A multicenter, open-label, randomized, proof-of-concept phase II clinical trial to assess the efficacy and safety of icatibant in patients infected with SARS-CoV-2 (COVID-19) and admitted to hospital units without invasive mechanical ventilation: study protocol (ICAT-COVID)Malchair P et al.Trials2022Clinical Study
Elevated salivary activity of mast cell chymase of periodontitis patients, and a new bradykinin generation cascade, mediating the cross-talks between mast cell and gingival fibroblastLu X et al.International immunopharmacology2021Observational Study
Evaluation of the efficacy and safety of icatibant and C1 esterase/kallikrein inhibitor in severe COVID-19: study protocol for a three-armed randomized controlled trialMansour E et al.Trials2021Clinical Study
MRGPRX2 Activation Causes Increased Skin Reactivity in Patients with Chronic Spontaneous UrticariaShtessel M et al.The Journal of investigative dermatology2021Observational Study
A randomized, open-label, adaptive, proof-of-concept clinical trial of modulation of host thromboinflammatory response in patients with COVID-19: the DAWn-Antico studyVanassche T et al.Trials2020Randomized Controlled Trial
Modulation of TRPV-1 by prostaglandin-E(2) and bradykinin changes cough sensitivity and autonomic regulation of cardiac rhythm in healthy subjectsLiviero F et al.Scientific reports2020Randomized Controlled Trial
Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular EdemaLang GE et al.Translational vision science & technology2020Randomized Controlled Trial
Detecting oral kallikrein-targeting therapy through triggered contact activation: A phase I studyHofman ZLM et al.The Journal of allergy and clinical immunology2020Randomized Controlled Trial
Evidence for bradykinin release in chronic spontaneous urticariaHofman ZLM et al.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology2020Clinical Trial
Hereditary angioedema attack: what happens to vasoactive mediators?Ferrara AL et al.International immunopharmacology2020Observational Study
Evaluation of bradykinin, VEGF, and EGF biomarkers in gingival crevicular fluid and comparison of PhotoBioModulation with conventional techniques in periodontitis: a split-mouth randomized clinical trialAngiero F et al.Lasers in medical science2020Randomized Controlled Trial
Efficacy, pharmacokinetics, and safety of icatibant for the treatment of Japanese patients with an acute attack of hereditary angioedema: A phase 3 open-label studyHide M et al.Allergology international : official journal of the Japanese Society of Allergology2020Clinical Trial, Phase III

More cited research

Conditions researched

Related compounds

FAQ

What is Bradykinin?

A 9-amino-acid peptide that widens blood vessels and causes swelling; given in research studies of blood flow.

How many registered human trials study Bradykinin?

The PeptideWhiz trial index lists 9 registered trials for Bradykinin, the most recent from 2018.

How much published research exists on Bradykinin?

The PeptideWhiz paper index links 385 PubMed papers to Bradykinin; by study type, 443 human and 327 animal studies.

Which conditions is Bradykinin researched for?

Anti-aging & longevity, Atherosclerosis, cardiovascular disease & high blood pressure, Chronic and systemic inflammation, Concussion, traumatic brain injury & stroke recovery, Diabetic retinopathy and glaucoma, Eczema, Fat loss, obesity & body recomposition, Gum disease (periodontal) & oral health, Gut: IBD (Crohn's, colitis), leaky gut, IBS & ulcers, Heart repair: after heart attack, heart failure & enlarged heart, High cholesterol and statins, Immune system (general), Insulin resistance, prediabetes & type 2 diabetes, Low blood pressure and orthostatic hypotension, Lung health, asthma & COPD, Lymphedema and swelling, Migraine, Neuropathy and CRPS, Osteoarthritis, cartilage loss & avoiding joint replacement, Post-surgical inflammation and surgery recovery, Psoriasis and psoriatic arthritis, Seasonal allergies, Skin, hair loss, wounds & mast-cell/histamine reactivity, Thick blood and blood clots.

Research and education only. Not medical advice. No dosing guidance. Data: ClinicalTrials.gov registry and PubMed via the PeptideWhiz index (204,289 studies).

Reported dosing ranges from research