OncoSignal
Live from Open Targets Platform, fetched 2026-11-12 01:52 UTC. Every row links to its source record.

GLS glutaminase

ENSG00000115419 · protein coding · Open Targets profile

Catalyzes the first reaction in the primary pathway for the renal catabolism of glutamine. Plays a role in maintaining acid-base homeostasis. Regulates the levels of the neurotransmitter glutamate, the main excitatory neurotransmitter in the brain (PubMed:30239721, PubMed:30575854, PubMed:30970188). {ECO:0000269|PubMed:30239721, ECO:0000269|PubMed:30575854, ECO:0000269|PubMed:30970188}.

In 1 of 15 cancers, the evidence for GLS comes mainly from inherited variants

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)
00.250.50.751B-cell acute lymphoblastic leukemiaB-cell acute lymphoblastic leukemiaB-cell acute lymphoblastic leukemia: germline 0.28breast cancerbreast cancernon-small cell lung carcinomanon-small cell lung carcinomarenal cell carcinomarenal cell carcinomaglioblastomaglioblastomamelanomamelanomahepatocellular carcinomahepatocellular carcinomacolorectal carcinomacolorectal carcinomagliomagliomacolorectal cancercolorectal cancerbreast carcinomabreast carcinomaacute myeloid leukemiaacute myeloid leukemianeuroblastomaneuroblastomahead and neck squamous cell carcinomahead and neck squamous cell carcinomacentral nervous system cancercentral nervous system cancer

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
Advanced Clinical, Structure with Ligand, High-Quality Ligand
PROTAC
Database Ubiquitination, Half-life Data, Small Molecule Binder

gnomAD loss of function constraint: o/e 0.4153999984264374 (upper bound 0.5485600233078003). 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 8 registry trials, updated in the last three years, of the most advanced drugs against GLS (telaglenastat), ranked by Phase 2+ trials. Live from ClinicalTrials.gov.

8 of 8 trials of drugs against GLS have sites only in United States

Registry trials of telaglenastat 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; 8 of 8 have all sites in one country.

Sites only in this groupSites here and elsewhere
United StatesUnited States: 8 trials with sites only hereUnited States: 0 trials with sites here and elsewhere8

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.

4 trials of drugs against GLS were stopped early

Terminated, withdrawn and suspended interventional trials of telaglenastat, 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 4 most recent of 4.

Paediatric incentives and obligations for GLS's drugs

For telaglenastat: 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.

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
TELAGLENASTATSmall moleculephase 2breast cancer, renal cell carcinoma, malignant peripheral nerve sheath tumor, non-small cell lung carcinoma, prostate cancer, cervical cancer, melanoma, colorectal cancer, +15 moreOpen Targets · ChEMBL