Bruton-type agammaglobulinemia
diseaseOn this page
Also known as agammaglobulinemia, Bruton tyrosine kinaseagammaglobulinemia, BTKagammaglobulinemia, X-linkedagammaglobulinemia, X-linked 1, X-linked recessiveBruton type agammaglobulinemiaBruton's agammaglobulinemiaBruton's Sex-linked agammaglobulinemiaBruton's X-linked agammaglobulinemiaBTK-deficiencyX-linked agammaglobulinemiaXLA
Summary
Bruton-type agammaglobulinemia (MONDO:0010421) is a disease caused by BTK (GenCC Definitive), with 1 cohort gene and 9 clinical trials. Top therapeutic interventions include human immunoglobulin g and melphalan.
At a glance
- Prevalence: 1-9 / 1 000 000 (Worldwide) [Orphanet-validated]
- Causal gene: BTK (GenCC Definitive)
- Cohort genes: 1
- ClinVar variants: 177
- Phenotypes (HPO): 35
- Clinical trials: 9
Clinical features
Epidemiology
Prevalence records
19 prevalence record(s), Orphanet:
| Type | Class | Value | Geography | Validation |
|---|---|---|---|---|
| Point prevalence | 1-9 / 1 000 000 | 0.22 | Worldwide | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.18 | France | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.21 | Italy | Validated |
| Point prevalence | <1 / 1 000 000 | 0.08 | United Kingdom | Validated |
| Point prevalence | <1 / 1 000 000 | 0.06 | Spain | Validated |
| Point prevalence | <1 / 1 000 000 | 0.03 | Germany | Validated |
| Point prevalence | <1 / 1 000 000 | 0.09 | Poland | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.13 | Croatia | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.16 | Hungary | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.25 | North Macedonia | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.1 | Slovenia | Validated |
| Point prevalence | <1 / 1 000 000 | 0.09 | Serbia | Validated |
| Point prevalence | <1 / 1 000 000 | 0.04 | Ukraine | Validated |
| Point prevalence | <1 / 1 000 000 | 0.06 | Belarus | Validated |
| Point prevalence | <1 / 1 000 000 | 0.03 | Romania | Validated |
| Point prevalence | <1 / 1 000 000 | 0.07 | United States | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.11 | Korea, Republic of | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.26 | United States | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.1 | Europe | Not yet validated |
Signs & symptoms
Clinical features (HPO)
35 HPO clinical features (Orphanet curated; top 35 by frequency):
| HPO ID | Term | Frequency |
|---|---|---|
| HP:0000162 | Glossoptosis | Very frequent (80-99%) |
| HP:0000246 | Sinusitis | Very frequent (80-99%) |
| HP:0000389 | Chronic otitis media | Very frequent (80-99%) |
| HP:0000509 | Conjunctivitis | Very frequent (80-99%) |
| HP:0000988 | Skin rash | Very frequent (80-99%) |
| HP:0001508 | Failure to thrive | Very frequent (80-99%) |
| HP:0001945 | Fever | Very frequent (80-99%) |
| HP:0002028 | Chronic diarrhea | Very frequent (80-99%) |
| HP:0002721 | Immunodeficiency | Very frequent (80-99%) |
| HP:0004322 | Short stature | Very frequent (80-99%) |
| HP:0004432 | Agammaglobulinemia | Very frequent (80-99%) |
| HP:0006532 | Recurrent pneumonia | Very frequent (80-99%) |
| HP:0012378 | Fatigue | Very frequent (80-99%) |
| HP:0100763 | Abnormality of the lymphatic system | Very frequent (80-99%) |
| HP:0100765 | Abnormality of the tonsils | Very frequent (80-99%) |
| HP:0100838 | Recurrent cutaneous abscess formation | Very frequent (80-99%) |
| HP:0200042 | Skin ulcer | Very frequent (80-99%) |
| HP:0000407 | Sensorineural hearing impairment | Frequent (30-79%) |
| HP:0001287 | Meningitis | Frequent (30-79%) |
| HP:0001369 | Arthritis | Frequent (30-79%) |
| HP:0001875 | Decreased total neutrophil count | Frequent (30-79%) |
| HP:0002088 | Abnormal lung morphology | Frequent (30-79%) |
| HP:0002901 | Hypocalcemia | Frequent (30-79%) |
| HP:0100658 | Cellulitis | Frequent (30-79%) |
| HP:0100806 | Sepsis | Frequent (30-79%) |
| HP:0001053 | Hypopigmented skin patches | Occasional (5-29%) |
| HP:0001596 | Alopecia | Occasional (5-29%) |
| HP:0001824 | Weight loss | Occasional (5-29%) |
| HP:0001873 | Thrombocytopenia | Occasional (5-29%) |
| HP:0001903 | Anemia | Occasional (5-29%) |
| HP:0002024 | Malabsorption | Occasional (5-29%) |
| HP:0002664 | Neoplasm | Occasional (5-29%) |
| HP:0002754 | Osteomyelitis | Occasional (5-29%) |
| HP:0002960 | Autoimmunity | Occasional (5-29%) |
| HP:0012115 | Hepatitis | Occasional (5-29%) |
Identifiers
Disease identifiers
| Field | Value |
|---|---|
| Canonical name | Bruton-type agammaglobulinemia |
| Mondo ID | MONDO:0010421 |
| MeSH | C537409 |
| OMIM | 300755 |
| Orphanet | 47 |
| DOID | DOID:14179 |
| NCIT | C3822 |
| SNOMED CT | 65880007 |
| UMLS | C0221026 |
| MedGen | 65123 |
| GARD | 0001033 |
| MedDRA | 10060360 |
| Is cancer (heuristic) | no |
Also known as: agammaglobulinemia, Bruton tyrosine kinase · agammaglobulinemia, BTK · agammaglobulinemia, X-linked · agammaglobulinemia, X-linked 1, X-linked recessive · Bruton type agammaglobulinemia · Bruton’s agammaglobulinemia · Bruton’s Sex-linked agammaglobulinemia · Bruton’s X-linked agammaglobulinemia · Bruton-type agammaglobulinemia · BTK-deficiency · X-linked agammaglobulinemia · XLA
Data availability: 177 ClinVar variants · 3 GenCC gene-disease records · 17 cell lines.
Disease family
Classification path: disease › human disease › disease by body system or component › immune system disorder › inborn error of immunity › B cell deficiency › agammaglobulinemia › isolated agammaglobulinemia › Bruton-type agammaglobulinemia
Related subtypes (1): autosomal agammaglobulinemia
Genetics & variants
GWAS landscape
No GWAS associations recorded — common-variant (GWAS) studies don’t cover this disease (typical for Mendelian / rare diseases). See the curated gene cohort and Mendelian overlap below.
Variant details and genetic-evidence tiers
ClinVar germline variants
177 retrieved; paginated sample, class counts are floors:
88 pathogenic, 33 likely pathogenic, 18 pathogenic/likely pathogenic, 15 uncertain significance, 11 conflicting classifications of pathogenicity, 8 benign, 4 benign/likely benign
| ClinVar | Variant (HGVS) | Gene | Classification | Review |
|---|---|---|---|---|
| 1012315 | NM_000061.3(BTK):c.1349+1G>A | BTK | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 1012881 | NM_000061.3(BTK):c.1106T>C (p.Leu369Pro) | BTK | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 1075550 | NM_000061.3(BTK):c.83G>T (p.Arg28Leu) | BTK | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 11342 | NM_000061.3(BTK):c.1574G>A (p.Arg525Gln) | BTK | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 11343 | NM_000061.3(BTK):c.1288A>G (p.Lys430Glu) | BTK | Pathogenic | no assertion criteria provided |
| 11344 | NM_000061.3(BTK):c.37C>T (p.Arg13Ter) | BTK | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 11345 | NM_000061.3(BTK):c.43C>T (p.Gln15Ter) | BTK | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 11348 | NM_000061.3(BTK):c.83G>A (p.Arg28His) | BTK | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 11349 | NM_000061.3(BTK):c.2T>C (p.Met1Thr) | BTK | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 11351 | NM_000061.3(BTK):c.97A>C (p.Thr33Pro) | BTK | Pathogenic | no assertion criteria provided |
| 11352 | NM_000061.3(BTK):c.228_231del (p.Glu76fs) | BTK | Pathogenic | criteria provided, single submitter |
| 11353 | NM_000061.3(BTK):c.141+3_141+4del | BTK | Pathogenic | no assertion criteria provided |
| 11354 | NM_000061.3(BTK):c.310-1G>C | BTK | Pathogenic | criteria provided, single submitter |
| 11355 | NM_000061.3(BTK):c.310-2A>G | BTK | Pathogenic | no assertion criteria provided |
| 11356 | NM_000061.3(BTK):c.338T>A (p.Val113Asp) | BTK | Pathogenic | no assertion criteria provided |
| 11357 | NM_000061.3(BTK):c.389del (p.Asn130fs) | BTK | Pathogenic | criteria provided, single submitter |
| 11358 | NM_000061.3(BTK):c.557dup (p.Pro187fs) | BTK | Pathogenic | criteria provided, single submitter |
| 11359 | NM_000061.3(BTK):c.588_589insCTACATAG (p.Ile197fs) | BTK | Pathogenic | no assertion criteria provided |
| 11360 | NM_000061.3(BTK):c.653del (p.Lys218fs) | BTK | Pathogenic | no assertion criteria provided |
| 11361 | NM_000061.3(BTK):c.718G>T (p.Glu240Ter) | BTK | Pathogenic | no assertion criteria provided |
| 11362 | NM_000061.3(BTK):c.755G>A (p.Trp252Ter) | BTK | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 11363 | NM_000061.3(BTK):c.763C>T (p.Arg255Ter) | BTK | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 11364 | NM_000061.3(BTK):c.839+1G>A | BTK | Pathogenic | no assertion criteria provided |
| 11365 | BTK, 1-BP DEL/3-BP INS, CODON 261 | BTK | Pathogenic | no assertion criteria provided |
| 11366 | NM_000061.3(BTK):c.862C>T (p.Arg288Trp) | BTK | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 11367 | NM_000061.3(BTK):c.919A>G (p.Arg307Gly) | BTK | Pathogenic | no assertion criteria provided |
| 11368 | NM_000061.3(BTK):c.1001A>C (p.Tyr334Ser) | BTK | Pathogenic | no assertion criteria provided |
| 11369 | NM_000061.3(BTK):c.974+1del | BTK | Pathogenic | no assertion criteria provided |
| 11372 | NM_000061.3(BTK):c.1116_1131dup (p.Ser378fs) | BTK | Pathogenic | no assertion criteria provided |
| 11373 | NM_000061.3(BTK):c.1223T>C (p.Leu408Pro) | BTK | Pathogenic | no assertion criteria provided |
Genes & proteins
Mendelian disease overlap and somatic drivers
GenCC: 7 · Orphanet: 2 · OMIM-shared: 0 · Dual-evidence (GWAS+Mendelian): 0
GenCC gene–disease validity (cohort genes)
the Disease column is the GenCC-asserted condition — a cohort gene’s strongest validity may be for a related predisposition syndrome.
| Gene | Classification | Inheritance | Disease | Records |
|---|---|---|---|---|
| BTK | Definitive | X-linked | Bruton-type agammaglobulinemia | 7 |
Orphanet rare-disease linkage (cohort genes)
| Gene | Orphanet ID | Rare disease |
|---|---|---|
| BTK | Orphanet:47 | X-linked agammaglobulinemia |
| BTK | Orphanet:632 | Short stature due to isolated growth hormone deficiency with X-linked hypogammaglobulinemia |
Cohort genes → proteins
1 cohort genes, 1 distinct canonical proteins.
Evidence partition
| Subset | Genes |
|---|---|
| multi_evidence | 1 |
Cohort genes (full)
| Symbol | HGNC | Ensembl | UniProt | Name | Evidence |
|---|---|---|---|---|---|
| BTK | HGNC:1133 | ENSG00000010671 | Q06187 | Tyrosine-protein kinase BTK | gencc,clinvar |
Cohort function summary
Lead sentence per gene, UniProt-curated.
| Symbol | Protein name | Function (lead sentence) |
|---|---|---|
| BTK | Tyrosine-protein kinase BTK | Non-receptor tyrosine kinase indispensable for B lymphocyte development, differentiation and signaling. |
Protein-family classification
Druggable: 1 · Difficult: 0 · Unknown: 0 · Druggable fraction: 1.0
Family distribution
Cohort families vs a genome-wide background (hypergeometric, BH-FDR; fold = observed/expected). Counts kept; sorted by enrichment, so the catch-all Other/Unknown bucket no longer leads.
| Family | Genes | Fold | FDR |
|---|---|---|---|
| Kinase | 1 | 27.7× | 0.036 |
Per-gene assignment
| Symbol | Family | Druggable? | EC | InterPro (top 3) |
|---|---|---|---|---|
| BTK | Kinase | yes | 2.7.10.2 | Prot_kinase_dom, SH2, Ser-Thr/Tyr_kinase_cat_dom |
Expression context
Cohort genes with no expression data: 0.
1 cohort gene are a single-cell marker in ≥1 SCXA experiment.
Breadth distribution (Bgee present_calls)
| Bucket | Genes |
|---|---|
| narrow (1-5 tissues) | 0 |
| moderate (6-20) | 0 |
| broad (>20) | 1 |
| unknown | 0 |
Top tissues across cohort
| Tissue | Cohort genes |
|---|---|
| leukocyte | 1 |
| monocyte | 1 |
| mononuclear cell | 1 |
Per-gene tissue summary (top 30)
| Symbol | Bgee breadth | FANTOM5 breadth | SCXA | Top tissues |
|---|---|---|---|---|
| BTK | 206 | broad | marker | monocyte, mononuclear cell, leukocyte |
Protein interactions among cohort
Intra-cohort edges: 0.
Hub genes (top 10 by interactor count)
| Symbol | Interactor count |
|---|---|
| BTK | 4,467 |
Structural data
PDB: 1 · AlphaFold-only: 0 · No structure: 0
Cohort genes with PDB structures (top 30)
| Symbol | UniProt | PDB entries |
|---|---|---|
| BTK | Q06187 | 156 |
Function
Pathway analysis
Distinct Reactome pathways touched by cohort: 45. Enrichment computed across 1 evidence-associated genes (1 with Reactome annotation).
Pathways by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 1 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| Pathway | Cohort genes | Fold | FDR | Sample cohort genes |
|---|---|---|---|---|
| G-protein beta:gamma signalling | 1 | 1903.3× | 0.009 | BTK |
| Diseases of Immune System | 1 | 878.5× | 0.009 | BTK |
| Diseases associated with the TLR signaling cascade | 1 | 878.5× | 0.009 | BTK |
| G beta:gamma signalling through BTK | 1 | 634.4× | 0.009 | BTK |
| MyD88 deficiency (TLR2/4) | 1 | 601.0× | 0.009 | BTK |
| IRAK4 deficiency (TLR2/4) | 1 | 571.0× | 0.009 | BTK |
| DAP12 interactions | 1 | 475.8× | 0.009 | BTK |
| DAP12 signaling | 1 | 368.4× | 0.009 | BTK |
| FCERI mediated Ca+2 mobilization | 1 | 356.9× | 0.009 | BTK |
| Antigen activates B Cell Receptor (BCR) leading to generation of second messengers | 1 | 356.9× | 0.009 | BTK |
| Parasite infection | 1 | 346.1× | 0.009 | BTK |
| Leishmania phagocytosis | 1 | 346.1× | 0.009 | BTK |
| Signaling by the B Cell Receptor (BCR) | 1 | 346.1× | 0.009 | BTK |
| Antigen processing-Cross presentation | 1 | 317.2× | 0.009 | BTK |
| RHO GTPases Activate WASPs and WAVEs | 1 | 317.2× | 0.009 | BTK |
| Fcgamma receptor (FCGR) dependent phagocytosis | 1 | 278.5× | 0.010 | BTK |
| Fc epsilon receptor (FCERI) signaling | 1 | 271.9× | 0.010 | BTK |
| FCGR3A-mediated phagocytosis | 1 | 187.2× | 0.011 | BTK |
| Regulation of actin dynamics for phagocytic cup formation | 1 | 184.2× | 0.011 | BTK |
| Toll Like Receptor TLR6:TLR2 Cascade | 1 | 175.7× | 0.011 | BTK |
| Toll Like Receptor 2 (TLR2) Cascade | 1 | 173.0× | 0.011 | BTK |
| Toll Like Receptor TLR1:TLR2 Cascade | 1 | 167.9× | 0.011 | BTK |
| Leishmania infection | 1 | 163.1× | 0.011 | BTK |
| Parasitic Infection Pathways | 1 | 163.1× | 0.011 | BTK |
| MyD88:MAL(TIRAP) cascade initiated on plasma membrane | 1 | 152.3× | 0.012 | BTK |
| G alpha (12/13) signalling events | 1 | 137.6× | 0.012 | BTK |
| Toll Like Receptor 4 (TLR4) Cascade | 1 | 131.3× | 0.012 | BTK |
| ER-Phagosome pathway | 1 | 129.8× | 0.012 | BTK |
| Toll-like Receptor Cascades | 1 | 124.1× | 0.013 | BTK |
| Potential therapeutics for SARS | 1 | 114.2× | 0.013 | BTK |
GO biological processes by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 1 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| GO term | Cohort genes | Fold | FDR | Sample cohort genes |
|---|---|---|---|---|
| regulation of B cell cytokine production | 1 | 16852.0× | 7e-04 | BTK |
| monocyte proliferation | 1 | 16852.0× | 7e-04 | BTK |
| positive regulation of interleukin-17A production | 1 | 16852.0× | 7e-04 | BTK |
| positive regulation of type I hypersensitivity | 1 | 8426.0× | 7e-04 | BTK |
| B cell affinity maturation | 1 | 8426.0× | 7e-04 | BTK |
| regulation of B cell apoptotic process | 1 | 8426.0× | 7e-04 | BTK |
| positive regulation of type III hypersensitivity | 1 | 5617.3× | 7e-04 | BTK |
| proteoglycan catabolic process | 1 | 5617.3× | 7e-04 | BTK |
| positive regulation of synoviocyte proliferation | 1 | 5617.3× | 7e-04 | BTK |
| eosinophil homeostasis | 1 | 5617.3× | 7e-04 | BTK |
| cellular response to molecule of fungal origin | 1 | 4213.0× | 9e-04 | BTK |
| histamine secretion by mast cell | 1 | 3370.4× | 0.001 | BTK |
| positive regulation of cGAS/STING signaling pathway | 1 | 2106.5× | 0.001 | BTK |
| neutrophil homeostasis | 1 | 1532.0× | 0.002 | BTK |
| cellular response to interleukin-7 | 1 | 1296.3× | 0.002 | BTK |
| positive regulation of B cell differentiation | 1 | 1123.5× | 0.002 | BTK |
| MyD88-dependent toll-like receptor signaling pathway | 1 | 936.2× | 0.002 | BTK |
| negative regulation of B cell proliferation | 1 | 936.2× | 0.002 | BTK |
| negative regulation of interleukin-10 production | 1 | 732.7× | 0.003 | BTK |
| Fc-epsilon receptor signaling pathway | 1 | 732.7× | 0.003 | BTK |
| positive regulation of NLRP3 inflammasome complex assembly | 1 | 581.1× | 0.003 | BTK |
| mesoderm development | 1 | 526.6× | 0.004 | BTK |
| positive regulation of immunoglobulin production | 1 | 481.5× | 0.004 | BTK |
| B cell activation | 1 | 455.5× | 0.004 | BTK |
| cell maturation | 1 | 443.5× | 0.004 | BTK |
| peptidyl-tyrosine phosphorylation | 1 | 421.3× | 0.004 | BTK |
| cellular response to reactive oxygen species | 1 | 411.0× | 0.004 | BTK |
| B cell receptor signaling pathway | 1 | 401.2× | 0.004 | BTK |
| positive regulation of B cell proliferation | 1 | 343.9× | 0.004 | BTK |
| positive regulation of phagocytosis | 1 | 318.0× | 0.004 | BTK |
Therapeutics
Drug target analysis
Approved (phase 4): 1 · Phase ≥3: 1 · Phased (≥1): 1 · Undrugged: 0
Druggability breadth: 1 of 1 evidence-associated genes (100%) have a ChEMBL target (buckets above are over the deeply-mined display cohort).
Genes with an approved drug
The molecule shown is one approved compound that hits the gene — not necessarily a drug of choice or one indicated for this disease.
| Symbol | Example approved molecule |
|---|---|
| BTK | PONATINIB |
Top cohort targets by molecule count
| Symbol | Molecules | Max phase |
|---|---|---|
| BTK | 84 | 4 |
Drugs targeting cohort genes (top 30)
| Molecule | Max phase | Targets in cohort |
|---|---|---|
| PONATINIB | 4 | BTK |
| FEDRATINIB | 4 | BTK |
| NERATINIB | 4 | BTK |
| IBRUTINIB | 4 | BTK |
| ENTRECTINIB | 4 | BTK |
| CERITINIB | 4 | BTK |
| VANDETANIB | 4 | BTK |
| BOSUTINIB | 4 | BTK |
| OSIMERTINIB | 4 | BTK |
| BRIGATINIB | 4 | BTK |
| FUTIBATINIB | 4 | BTK |
| ACALABRUTINIB | 4 | BTK |
| OLMUTINIB | 4 | BTK |
| ZANUBRUTINIB | 4 | BTK |
| TIRABRUTINIB | 4 | BTK |
| RITLECITINIB | 4 | BTK |
| PIRTOBRUTINIB | 4 | BTK |
| NINTEDANIB | 4 | BTK |
| SUNITINIB | 4 | BTK |
| DASATINIB | 4 | BTK |
| MITOXANTRONE | 4 | BTK |
| CRIZOTINIB | 4 | BTK |
| SARACATINIB | 3 | BTK |
| CANERTINIB | 3 | BTK |
| ENTOSPLETINIB | 3 | BTK |
| TESEVATINIB | 3 | BTK |
| POZIOTINIB | 3 | BTK |
| ROCILETINIB | 3 | BTK |
| PYROTINIB | 3 | BTK |
| RILZABRUTINIB | 3 | BTK |
Bioactivity and enzyme data
Enzyme cohort genes (≥1 EC): 1.
Cohort genes with ChEMBL bioactivity (full, sorted by assay count)
| Symbol | Assays | Type breakdown |
|---|---|---|
| BTK | 1,836 | Binding:1810, Functional:23, ADMET:3 |
Cohort enzymes (BRENDA EC)
| Symbol | EC numbers | Names |
|---|---|---|
| BTK | 2.7.10.2 | non-specific protein-tyrosine kinase |
Cohort genes with high screening signal
≥100 ChEMBL assays — a studied-ness signal; see Therapeutics for approved-drug status.
| Symbol | ChEMBL assays |
|---|---|
| BTK | 1,836 |
Pharmacogenomics
Cohort genes with a PharmGKB record: 1; with CPIC/DPWG dosing guidelines: 0.
No cohort gene has a CPIC/DPWG genotype-guided dosing guideline (PharmGKB).
Chemical tractability of cohort targets
30 approved/phased compounds have measured bioactivity against a cohort gene (and aren’t yet in disease-level trials). This is a research / tractability signal, NOT a therapeutic recommendation — a bioactivity row often reflects off-target or screening binding (e.g. promiscuous kinase inhibitors against a cohort kinase), implying no disease mechanism.
| Compound | Max phase | Cohort target (bioactivity) |
|---|---|---|
| PONATINIB | 4 | BTK |
| FEDRATINIB | 4 | BTK |
| NERATINIB | 4 | BTK |
| IBRUTINIB | 4 | BTK |
| ENTRECTINIB | 4 | BTK |
| CERITINIB | 4 | BTK |
| VANDETANIB | 4 | BTK |
| BOSUTINIB | 4 | BTK |
| OSIMERTINIB | 4 | BTK |
| BRIGATINIB | 4 | BTK |
| FUTIBATINIB | 4 | BTK |
| ACALABRUTINIB | 4 | BTK |
| OLMUTINIB | 4 | BTK |
| ZANUBRUTINIB | 4 | BTK |
| TIRABRUTINIB | 4 | BTK |
| RITLECITINIB | 4 | BTK |
| PIRTOBRUTINIB | 4 | BTK |
| NINTEDANIB | 4 | BTK |
| SUNITINIB | 4 | BTK |
| DASATINIB | 4 | BTK |
| MITOXANTRONE | 4 | BTK |
| CRIZOTINIB | 4 | BTK |
| SARACATINIB | 3 | BTK |
| CANERTINIB | 3 | BTK |
| ENTOSPLETINIB | 3 | BTK |
| TESEVATINIB | 3 | BTK |
| POZIOTINIB | 3 | BTK |
| ROCILETINIB | 3 | BTK |
| PYROTINIB | 3 | BTK |
| RILZABRUTINIB | 3 | BTK |
Druggability pyramid
Cohort genes binned by druggability tier (high → low):
| Tier | Definition | Genes | Symbols |
|---|---|---|---|
| A | Approved (phase 4 drug) | 1 | BTK |
| B | Phased (≥1) drug, not yet approved | 0 | |
| C | Druggable family + PDB, no drug | 0 | |
| D | Druggable family + AlphaFold only, no drug | 0 | |
| E | Difficult family or no structure, no drug | 0 |
Undrugged target profiles
0 cohort genes are undrugged. Ranked by ‘starting-point quality’ (assay depth + drugged-partner adjacency).
Clinical trials & evidence
Clinical trials
Clinical trials: 9.
Phase distribution (across all retrieved trials)
| Phase | Trials |
|---|---|
| Not specified | 6 |
| PHASE4 | 1 |
| PHASE3 | 1 |
| PHASE2 | 1 |
Top trials by phase / activity
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT01289847 | PHASE4 | COMPLETED | A Study to Find Out How Safe and Effective Gammaplex® is in Young People With Primary Immunodeficiency |
| NCT00542997 | PHASE3 | COMPLETED | Study of Subcutaneous Immune Globulin in Patients Requiring IgG Replacement Therapy |
| NCT01821781 | PHASE2 | ACTIVE_NOT_RECRUITING | Immune Disorder HSCT Protocol |
| NCT00001244 | Not specified | RECRUITING | Immune Regulation in Patients With Common Variable Immunodeficiency and Related Inborn Errors of Immunity (IEI) |
| NCT05321407 | Not specified | ACTIVE_NOT_RECRUITING | COVID-19 Vaccine Responses in PIDD Subjects |
| NCT00004341 | Not specified | UNKNOWN | Study of Genetic and Molecular Defects in Primary Immunodeficiency Disorders |
| NCT00006054 | Not specified | TERMINATED | Allogeneic Bone Marrow Transplantation in Patients With Primary Immunodeficiencies |
| NCT02234791 | Not specified | UNKNOWN | Mutation of the BTK Gene and Genotype-phenotype Correlation of Chinese Patients With X-Linked Agammaglobulinemia |
| NCT02960399 | Not specified | TERMINATED | Assessment of Immunogenicity of Zostavax® in Patients With Antibody Deficiency 60 Years of Age and Older |
Drugs tested across these trials (top 30)
| Molecule | Max phase | Trials referencing |
|---|---|---|
| HUMAN IMMUNOGLOBULIN G | 4 | 1 |
| MELPHALAN | 4 | 1 |
Related Atlas pages
- Cohort genes: BTK
- Drugs: Human Immunoglobulin G, Melphalan