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}.
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.
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.
- Amit SinglaRutgers University · 1 of 1 trials Phase 2+
- Bao-Huan ZhouClinical Medical College of Yangzhou University · 1 of 1 trials Phase 2+
- Dou-Sheng Bai BaiClinical Medical College of Yangzhou University · 1 of 1 trials Phase 2+
- Elmir OmerovicSahlgrenska University Hospital · 1 of 1 trials Phase 2+
- Guo-Qing JiangClinical Medical College of Yangzhou University · 1 of 1 trials Phase 2+
- Jettanong KlaewsongkramChulalongkorn University · 1 of 1 trials Phase 2+
- Sheng-Jie JinClinical Medical College of Yangzhou University · 1 of 1 trials Phase 2+
- Stephan BusqueStanford University · 1 of 1 trials Phase 2+
- Tian-Ming GaoClinical Medical College of Yangzhou University · 1 of 1 trials Phase 2+
- Feng GaoBeijing Tiantan Hospital · 0 of 1 trials Phase 2+
- Kaavya NarasimhaluNational Neuroscience Institute · 0 of 1 trials Phase 2+
- Pál Maurovich-HorvatSemmelweis University Medical Imaging Centre · 0 of 1 trials Phase 2+
- Ping ChenClinical Medical College, Yangzhou University · 0 of 1 trials Phase 2+
- Tamás GyörkeSemmelweis University Department of Nuclear Medicine · 0 of 1 trials Phase 2+
- Zhongrong MiaoBeijing Tiantan Hospital · 0 of 1 trials Phase 2+
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.
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 synonymsNo 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.
- FDA pediatric target list: no · SLC29A1 is not on the listRule: Target is on FDA's Pediatric Molecular Target List (relevant targets). Source: FDA Pediatric Molecular Target List (Listed as February 2026 on the FDA Pediatric Oncology page; the file served is 9.7.22_the_relevant_molecular_target_list.xlsx, whose Summary of Changes sheet is headed 'SEPTEMBER 2022 UPDATE' (footnote date 2022-09-01)), 2026-11-11
- EU paediatric investigation plan: no · No EMA paediatric investigation plan decision names dipyridamoleRule: 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: no · No EU orphan designation names dipyridamoleRule: 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: no · EMA lists no centrally authorised medicine of dipyridamoleRule: 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 data download (dated snapshot), 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 linkRule: 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 dipyridamoleRule: FDA's Pediatric Oncology Drug Approvals table names the drug. Source: FDA Pediatric Oncology Drug Approvals (content current as of 2026-03-03), 2026-11-11
- Registered studies open to children: yes · 6 interventional studies of dipyridamole include patients under 18; 0 are recruiting, not yet recruiting or activeRule: The registry's age group includes Child (birth to 17 years), which also counts studies that set no minimum age. Source: ClinicalTrials.gov search, 2026-11-11
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.
| Drug | Type | Highest stage | Indications | Source records |
|---|---|---|---|---|
| DIPYRIDAMOLE | Small molecule | phase 4 | coronary artery disorder, stroke disorder, Recurrent thrombophlebitis, hypertensive disorder, cervical artery dissection, ischemic stroke, transient ischemic attack, myocardial infarction, +15 more | Open Targets · ChEMBL |