IL5

Chr 5

interleukin 5

Also known as: EDF, IL-5, TRF

This gene encodes a cytokine that acts as a growth and differentiation factor for both B cells and eosinophils. The encoded cytokine plays a major role in the regulation of eosinophil formation, maturation, recruitment and survival. The increased production of this cytokine may be related to pathogenesis of eosinophil-dependent inflammatory diseases. This cytokine functions by binding to its receptor, which is a heterodimer, whose beta subunit is shared with the receptors for interleukine 3 (IL3) and colony stimulating factor 2 (CSF2/GM-CSF). This gene is located on chromosome 5 within a cytokine gene cluster which includes interleukin 4 (IL4), interleukin 13 (IL13), and CSF2 . This gene, IL4, and IL13 may be regulated coordinately by long-range regulatory elements spread over 120 kilobases on chromosome 5q31. [provided by RefSeq, Jul 2013]

OMIMResearchGenerating clinical summary…
12
Active trials
108
Pubs (1 yr)
P/LP submissions
P/LP missense
1.46
LOEUF
Multiple*
Mechanism· predicted

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.46LOEUF
pLI 0.006
Z-score 0.81
OE 0.65 (0.321.46)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
-0.11Z-score
OE missense 1.04 (0.861.26)
72 obs / 69.4 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?
LoF OE?0.65 (0.321.46)
00.351.4
Missense OE?1.04 (0.861.26)
00.61.4
Synonymous OE?1.01
01.21.6
LoF obs/exp: 4 / 6.2Missense obs/exp: 72 / 69.4Syn Z: -0.04

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

IL5 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

Metastatic Solid TumorAdvanced Cancer

High Definition Medicine for Solid Tumors Oncology

RECRUITING
NCT06590506Centro Nacional de Investigaciones Oncologicas CARLOS IIIStarted 2023-03-02
Wearable
Ulcerative Colitis

Multi-Strain Probiotics Supplementation With Standard Care in Mild to Moderate Ulcerative Colitis

RECRUITING
NCT06595719Phase NANational University of MalaysiaStarted 2024-02-23
Multi-Strain ProbioticsPlacebo
Non-Allergic Rhinitis With Eosinophilia Syndrome

Efficacy and Safety of Stapokibart in Non-Allergic Rhinitis With Eosinophilia Syndrome

NOT YET RECRUITING
NCT07240376Phase NAHuazhong University of Science and TechnologyStarted 2025-11-25
Stapokibart (CM310)Placebo
Chronic Obstructive Pulmonary Disease Exacerbation

The CATALINA Study

RECRUITING
NCT05008081Wim JanssensStarted 2022-10-25
Healthy AdultsHigh AltitudeIsolation, Social

Human Milk Oligosaccharides (HMOs) and Gut Microbiota, Immune System in Antarctica

ENROLLING BY INVITATION
NCT06133530Phase NAIU University of Applied SciencesStarted 2023-09-24
Human milk oligosaccharidesMaltose
Systemic Histiocytosis (Disorder)

Biomarkers in Systemic Histiocytosis

NOT YET RECRUITING
NCT07157683Assistance Publique - Hôpitaux de ParisStarted 2025-10-01
Biospecimen collection
PsoriasisInflammation

Regulation of Inflammatory Genes in Psoriasis

RECRUITING
NCT03125655University of Alabama at BirminghamStarted 2014-04-22
Inflammatory markers
EGPA - Eosinophilic Granulomatosis With Polyangiitis

eGPA and Local Inflammation Within the Ear, Nose and Throat Area

RECRUITING
NCT06298448University Medical Center GroningenStarted 2024-02-14
laboratory experiments before and after mepolizumab treatment
Triple-negative Breast Cancer

Prediction of Radiotherapy Efficacy in Patients With Triple-negative Breast Cancer

ACTIVE NOT RECRUITING
NCT06418126Phase NACentre Paul StraussStarted 2024-01-11
blood sampling before radiotherapyblood sampling after the fourth radiotherapy sessioncollection of acute toxicity (radiodermatitis)
Incisional Ventral Hernia

Cytokine Response to Abdominal Wall Reconstruction

RECRUITING
NCT07422584Northwestern UniversityStarted 2026-02-03
Not applicable- observational study
Advanced Pancreatic CancerDuctal Adenocarcinoma of Pancreas

A Phase I/IIa Study of GKL-006 Injection in Patients With Advanced Pancreatic Cancer

ACTIVE NOT RECRUITING
NCT07777211Phase PHASE1, PHASE2Beijing Gene Key Life Technology Co., LtdStarted 2025-08-14
GKL-006 injectionNab-paclitaxel and Gemcitabine
Asthma; Eosinophilic

The Influence of Mepolizumab on Structural and Inflammatory Cells in Severe Eosinophilic Asthma

ACTIVE NOT RECRUITING
NCT05144087University Hospital Southampton NHS Foundation TrustStarted 2022-05-25