OncoSignal
Live from Open Targets Platform, fetched 2026-11-11 23:47 UTC. Every row links to its source record.

SLC29A1 solute carrier family 29 member 1 (Augustine blood group)

ENSG00000112759 · protein coding · Open Targets profile

Uniporter involved in the facilitative transport of nucleosides and nucleobases, and contributes to maintaining their cellular homeostasis (PubMed:10722669, PubMed:10755314, PubMed:12527552, PubMed:14759222, PubMed:15037197, PubMed:17379602, PubMed:21795683, PubMed:26406980, PubMed:27995448, PubMed:35790189, PubMed:8986748). Functions as a Na(+)-independent transporter (PubMed:8986748). Involved in the transport of nucleosides such as adenosine, guanosine, inosine, uridine, thymidine and cytidine (PubMed:10722669, PubMed:10755314, PubMed:12527552, PubMed:14759222, PubMed:15037197, PubMed:17379602, PubMed:26406980, PubMed:8986748, PubMed:39737929). Also transports purine nucleobases (hypoxanthine, adenine, guanine) and pyrimidine nucleobases (thymine, uracil) (PubMed:21795683, PubMed:27995448). Also mediates the uptake of nicotinamide; contributes to maintaining nicotinamide homeostasis but also regulated nicotinamide biological roles (PubMed:39885119). Mediates basolateral nucleoside uptake into Sertoli cells, thereby regulating the transport of nucleosides in testis across the blood- testis barrier (By similarity). Regulates inosine levels in brown adipocytes tissues (BAT) and extracellular inosine levels, which controls BAT-dependent energy expenditure (PubMed:35790189). {ECO:0000250|UniProtKB:O54698, ECO:0000269|PubMed:10722669, ECO:0000269|PubMed:10755314, ECO:0000269|PubMed:12527552, ECO:0000269|PubMed:14759222, ECO:0000269|PubMed:15037197, ECO:0000269|PubMed:17379602, ECO:0000269|PubMed:21795683, ECO:0000269|PubMed:23639800, ECO:0000269|PubMed:26406980, ECO:0000269|PubMed:27995448, ECO:0000269|PubMed:35790189, ECO:0000269|PubMed:39737929, ECO:0000269|PubMed:39885119, ECO:0000269|PubMed:8986748}.

In 2 of 15 cancers, the evidence for SLC29A1 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)
00.250.50.751urinary bladder carcinomaurinary bladder carcinomahead and neck squamous cell carcinomahead and neck squamous cell carcinomahead and neck squamous cell carcinoma: germline 0.18pancreatic ductal adenocarcinomapancreatic ductal adenocarcinomaexocrine pancreatic carcinomaexocrine pancreatic carcinomapancreatic adenocarcinomapancreatic adenocarcinomaovarian carcinomaovarian carcinomarenal cell carcinomarenal cell carcinomameningiomameningiomapterygiumpterygiumtriple-negative breast carcinomatriple-negative breast carcinomaleiomyosarcomaleiomyosarcomaacute myeloid leukemiaacute myeloid leukemiahepatocellular carcinomahepatocellular carcinomamyelodysplastic syndromemyelodysplastic syndromeovarian neoplasmovarian neoplasmovarian neoplasm: germline 0.09

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
Approved Drug, Structure with Ligand, High-Quality Ligand, Druggable Family
Antibody
UniProt loc high conf, GO CC high conf, UniProt SigP or TMHMM
PROTAC
Database Ubiquitination, Half-life Data, Small Molecule Binder

gnomAD loss of function constraint: o/e 0.4554699957370758 (upper bound 0.6503900289535522). 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 15 registry trials, updated in the last three years, of the most advanced drugs against SLC29A1 (dipyridamole), ranked by Phase 2+ trials. Live from ClinicalTrials.gov.

4 of 12 trials of drugs against SLC29A1 have sites only in China

Registry trials of dipyridamole 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; 11 of 12 have all sites in one country.

Sites only in this groupSites here and elsewhere
United StatesUnited States: 2 trials with sites only hereUnited States: 0 trials with sites here and elsewhere2ChinaChina: 4 trials with sites only hereChina: 0 trials with sites here and elsewhere4EuropeEurope: 3 trials with sites only hereEurope: 0 trials with sites here and elsewhere3OtherOther: 3 trials with sites only hereOther: 0 trials with sites here and elsewhere3

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. 3 trials list no sites and are left out. Source: ClinicalTrials.gov, fetched live.

13 trials of drugs against SLC29A1 were stopped early; 1 give no reason

Terminated, withdrawn and suspended interventional trials of dipyridamole, 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 13 most recent of 13.

  • terminated · 2023-11-07 · Clear Creek Bio, Inc. · Dipyridamole 75 MG
    “Low prevalence of COVID-19 in India led to lack of eligible subjects.”
  • terminated · 2023-04-21 · UConn Health · Dipyridamole Tablets
    “reduction of Hospitalized COVID patients at UConnHealth”
  • terminated · 2021-04-02 · Ottawa Heart Institute Research Corporation · matched by the registry's drug synonyms
    “The complexity of the study and the recent slow down situation hampered the ability to recruit CAD patients therefore the study has been terminated.”
  • terminated · 2020-11-25 · Oklahoma Medical Research Foundation · extended release dipyridamole 200mg/aspirin 25mg
    “Slow recruitment”
  • terminated · 2018-06-11 · University of Nottingham · matched by the registry's drug synonyms
    “Trial reached a definitive answer ahead of full recruitment.”
  • terminated · 2018-04-13 · UConn Health · dipyridamole
    “Limited numbers of patients qualified for trial”
  • terminated · 2017-09-05 · University of Pennsylvania · Dipyridamole 200mg and Aspirin 25mg bid:, Dipyridamole 200 mg bid
    “Could not enroll subjects who met the stringent inclusion/exclusion criteria.”
  • terminated · 2017-04-24 · Ottawa Heart Institute Research Corporation · matched by the registry's drug synonyms
    “Continued recruitment of study participants was not feasible”
  • terminated · 2014-10-24 · Boehringer Ingelheim · matched by the registry's drug synonyms
    No reason given
  • terminated · 2014-04-29 · Zalicus · matched by the registry's drug synonyms
    “CRx-102-006 study results, negative”
  • withdrawn · 2013-08-07 · Children's Hospital Medical Center, Cincinnati · oral dipyridamole, oral magnesium, or a combination of both
    “The NHLBI BSMB recommended closure due to poor enrollment.”
  • terminated · 2012-09-11 · Zalicus · Prednisolone-Dipyridamole
    “missed endpoint of meaningful clinical benefit, compared to prednisolone 2.7mg”
  • terminated · 2008-03-03 · Hospices Civils de Lyon · matched by the registry's drug synonyms
    “Poor recruiting status”
Paediatric incentives and obligations for SLC29A1's drugs

For dipyridamole: 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
DIPYRIDAMOLESmall moleculephase 4coronary artery disorder, stroke disorder, Recurrent thrombophlebitis, hypertensive disorder, cervical artery dissection, ischemic stroke, transient ischemic attack, myocardial infarction, +15 moreOpen Targets · ChEMBL