OncoSignal
Live from Open Targets Platform, fetched 2026-11-12 03:34 UTC. Every row links to its source record.

CCR4 C-C motif chemokine receptor 4

ENSG00000183813 · protein coding · Open Targets profile

High affinity receptor for the C-C type chemokines CCL17/TARC, CCL22/MDC and CKLF isoform 1/CKLF1. The activity of this receptor is mediated by G(i) proteins which activate a phosphatidylinositol-calcium second messenger system. Can function as a chemoattractant homing receptor on circulating memory lymphocytes and as a coreceptor for some primary HIV-2 isolates. In the CNS, could mediate hippocampal-neuron survival. {ECO:0000269|PubMed:10466728, ECO:0000269|PubMed:10754297, ECO:0000269|PubMed:16137713, ECO:0000269|PubMed:9169480, ECO:0000269|PubMed:9430724}.

In 12 of 15 cancers, the evidence for CCR4 comes mainly from mutations found in tumours

Each row is a cancer, strongest overall evidence first. The two dots show how strong the inherited (germline) and tumour-mutation (somatic) evidence is; the line between them is the gap.

Inherited (germline) variantsMutations in tumours (somatic)
00.250.50.751mycosis fungoidesmycosis fungoidesSezary syndromeSezary syndromeadult T-cell leukemia/lymphomaadult T-cell leukemia/lymphomaadult T-cell leukemia/lymphoma: somatic 0.30primary cutaneous T-cell non-Hodgkin ly…primary cutaneous T-cell non-Hodgkin lymphomahepatocellular carcinomahepatocellular carcinomahepatocellular carcinoma: somatic 0.30head and neck squamous cell carcinomahead and neck squamous cell carcinomahead and neck squamous cell carcinoma: somatic 0.30melanomamelanomamelanoma: somatic 0.30lung adenocarcinomalung adenocarcinomalung adenocarcinoma: somatic 0.30breast carcinomabreast carcinomabreast carcinoma: somatic 0.30lung carcinomalung carcinomalung carcinoma: somatic 0.30pancreatic ductal adenocarcinomapancreatic ductal adenocarcinomapancreatic ductal adenocarcinoma: somatic 0.30urinary bladder carcinomaurinary bladder carcinomaurinary bladder carcinoma: somatic 0.30cutaneous melanomacutaneous melanomacutaneous melanoma: somatic 0.30plasma cell myelomaplasma cell myelomaplasma cell myeloma: somatic 0.30colon adenocarcinomacolon adenocarcinomacolon adenocarcinoma: somatic 0.30

Scores run from 0 (no evidence) to 1 (strongest). A missing dot at 0 means Open Targets holds no evidence of that kind. Source: Open Targets Platform, fetched live.

Tractability

Small molecule
High-Quality Ligand, Druggable Family
Antibody
Approved Drug, GO CC high conf, UniProt loc med conf, UniProt SigP or TMHMM, Human Protein Atlas loc
PROTAC
Small Molecule Binder

gnomAD loss of function constraint: o/e 0.5273000001907349 (upper bound 0.9201400279998779). Low values mean loss of function is poorly tolerated, a safety flag for inhibition.

Who runs trials of these drugs

Principal investigators and study chairs on 23 registry trials, updated in the last three years, of the most advanced drugs against CCR4 (mogamulizumab), ranked by Phase 2+ trials. Live from ClinicalTrials.gov.

16 of 23 trials of drugs against CCR4 have sites only in United States

Registry trials of mogamulizumab updated in the last three years, counted by the country group of their listed sites. A trial with sites in several groups counts in each; 17 of 23 have all sites in one country.

Sites only in this groupSites here and elsewhere
United StatesUnited States: 16 trials with sites only hereUnited States: 4 trials with sites here and elsewhere20ChinaChina: 1 trials with sites only hereChina: 0 trials with sites here and elsewhere1EuropeEurope: 2 trials with sites only hereEurope: 4 trials with sites here and elsewhere6JapanJapan: 0 trials with sites only hereJapan: 1 trials with sites here and elsewhere1OtherOther: 0 trials with sites only hereOther: 2 trials with sites here and elsewhere2

Site counts are not patients per country, and trials registered only outside ClinicalTrials.gov are not covered. Where sites are is a fact about the record, not a judgement of its quality. Europe is the EU and EEA, the UK and Switzerland. Source: ClinicalTrials.gov, fetched live.

7 trials of drugs against CCR4 were stopped early

Terminated, withdrawn and suspended interventional trials of mogamulizumab, newest update first, live from ClinicalTrials.gov. Each reason is quoted exactly as the registry gives it; we do not sort reasons into safety, efficacy or business. Dates are the last registry update. Showing the 7 most recent of 7.

  • suspended · 2026-06-15 · University of Alabama at Birmingham · Mogamulizumab
    “IRB audit”
  • suspended · 2026-02-27 · H. Lee Moffitt Cancer Center and Research Institute · Mogamulizumab-Kpkc
    “Slow Accrual”
  • terminated · 2025-10-16 · National Cancer Institute (NCI) · Mogamulizumab
    “Drug supply issues”
  • terminated · 2024-08-13 · Emory University · Mogamulizumab
    “Lack of funding”
  • terminated · 2022-04-14 · Kyowa Kirin Co., Ltd. · matched by the registry's drug synonyms
    “Due to not achieving the primary outcome.”
  • terminated · 2019-02-27 · Pfizer · matched by the registry's drug synonyms
    “The study was terminated due to marginal efficacy and change in sponsor prioritization. The combination had a manageable safety profile.”
  • terminated · 2014-04-21 · Amgen · matched by the registry's drug synonyms
    “Administrative decision”
Paediatric incentives and obligations for CCR4's drugs

For mogamulizumab: what EMA and FDA publish about paediatric plans, orphan status and pediatric approvals, and how many registered studies take children. Each line is a yes, no or not published fact from the record linked under it; none of it is a forecast.

  • EU paediatric investigation plan: yes · EMEA-001816-PIP02-15 (mogamulizumab, Treatment of Cutaneous T-Cell Lymphoma): W: decision granting a waiver in all age groups for all conditions or indications, 30 Oct 2015; EMEA-001816-PIP01-15 (mogamulizumab, Treatment of adult T-cell leukaemia / lymphoma): W: decision granting a waiver in all age groups for all conditions or indications, 30 Oct 2015
    Rule: An EMA PIP decision (agreement, modification or waiver) lists the drug as its active substance, exact name. Source: EMA data download (dated snapshot), 2026-11-11
  • EU orphan designation: yes · EU/3/16/1756 positive 14 Oct 2016: Treatment of cutaneous T-cell lymphoma; EU/3/11/943 positive 11 Jan 2012: Treatment of peripheral T-cell lymphoma (nodal, other extranodal and leukaemic/disseminated)
    Rule: An EU orphan designation lists the drug as its active substance (exact name) or belongs to a medicine that does; withdrawn and expired designations are listed with their status. Source: EMA data download (dated snapshot), 2026-11-11
  • Authorised in the EU: yes · Poteligeo: authorised since 22 Nov 2018, orphan medicine
    Rule: An EMA medicine record lists the drug as its active substance or INN, exact name; national-only authorisations are not in this file. Source: EMA EPAR Poteligeo, 2026-11-11
  • FDA orphan designation: not published · FDA's orphan designation database turns away automated requests, so this app does not read it; search it by hand at the link
    Rule: Would be: an FDA orphan designation names the drug. Source: FDA orphan designations search
  • FDA pediatric oncology approval: no · FDA's table lists no pediatric approval of mogamulizumab
    Rule: FDA's Pediatric Oncology Drug Approvals table names the drug. Source: FDA Pediatric Oncology Drug Approvals (content current as of 2026-03-03), 2026-11-12
  • Registered studies open to children: no · No interventional study of mogamulizumab includes patients under 18
    Rule: The registry's age group includes Child (birth to 17 years), which also counts studies that set no minimum age. Source: ClinicalTrials.gov search, 2026-11-12

Rare pediatric disease voucher. FDA, content current as of 29 Apr 2026: “As of February 3, 2026, enactment of the Consolidated Appropriations Act, 2026, the rare pediatric disease PRV program will sunset after September 30, 2029. FDA may not award any PRVs under this program after September 30, 2029.” Voucher sale prices are not shown here; they appear only as company-reported news. FDA: Rare Pediatric Disease Designation and Priority Review Voucher Programs

All 1 drugs and clinical candidates as a table

Each drug, stage and indication links to its Open Targets record, where the trials and approvals behind it are listed. Salt forms (for example a mesylate) are listed as Open Targets records them, as separate entries.

DrugTypeHighest stageIndicationsSource records
MOGAMULIZUMABAntibodyphase 4mycosis fungoides, Sezary syndrome, adult T-cell leukemia/lymphoma, neoplasm, primary cutaneous T-cell non-Hodgkin lymphoma, tropical spastic paraparesis, mature T-cell and NK-cell non-Hodgkin lymphoma, diffuse large B-cell lymphoma, +8 moreOpen Targets · ChEMBL