Drug ID:Drug193
Drug Name:Olsalazine
CID:22419
DrugBank ID:DB01250
Modality:Small Molecule
Groups:approved
US Approved:YES
Other Approved:YES
Identifier: NCT00004288
Molecular Formula:C14H10N2O6
Molecular Weight:302.24 g/mol
Isomeric SMILES:C1=CC(=C(C=C1N=NC2=CC(=C(C=C2)O)C(=O)O)C(=O)O)O
Synonyms:Olsalazine; 15722-48-2; Olsalazina; Olsalazinum; 5,5'-Azobis(salicylic acid); C. i. mordant yellow 5; 5,5'-azodisalicylic acid; ULS5I8J03O; Benzoic acid, 3,3'-azobis(6-hydroxy-; Azodisal
Phase 0: 0
Phase 1: 0
Phase 2: 1
Phase 3: 0
Phase 4: 0
Description:Olsalazine is an anti-inflammatory drug used in the treatment of Inflammatory Bowel Disease and Ulcerative Colitis. Olsalazine is a derivative of salicylic acid. Inactive by itself (it is a prodrug), it is converted by the bacteria in the colon to mesalamine. Mesalamine works as an anti-inflammatory agent in treating inflammatory diseases of the intestines.

Molecular Structure

2D Molecular Structure

Knowledge Graph

dtIDCIDCompound NameGene IDGene NameSpeciesPubMed IDsAction
dt1353 22419 Olsalazine 5742 PTGS1 Homo sapiens (human) 12950415 Inhibitor
dt1354 22419 Olsalazine 5743 PTGS2 Homo sapiens (human) 12950415 Inhibitor
dt1355 22419 Olsalazine 7172 TPMT Homo sapiens (human) Inhibitor
dt1356 22419 Olsalazine 7498 XDH Homo sapiens (human) 3067340 Inhibitor
dt1357 22419 Olsalazine 56606 SLC2A9 Homo sapiens (human) 32863294 Downregulator
dt1358 22419 Olsalazine 9356 SLC22A6 Homo sapiens (human) 32863294 Upregulator
dt1359 22419 Olsalazine 9376 SLC22A8 Homo sapiens (human) 32863294 Upregulator
dt1360 22419 Olsalazine 6574 SLC20A1 Homo sapiens (human) 32863294 Upregulator
dt1361 22419 Olsalazine 476 ATP1A1 Homo sapiens (human) Inhibitor
dt1362 22419 Olsalazine 477 ATP1A2 Homo sapiens (human) Inhibitor

  • No data available

Phase Distribution
Phase Description
  • Phase 0: Exploratory trials to assess drug behavior in humans
  • Phase 1: Safety trials to determine safe dosage range
  • Phase 2: Efficacy trials to evaluate therapeutic effects
  • Phase 3: Large-scale trials to confirm efficacy and safety
  • Phase 4: Post-marketing surveillance for long-term safety and efficacy

Trial IDTitlePhaseStatusSponsorIndicationsInterventions
NCT04985968 The Efficacy and Safety of Cobitolimod in Participants With Moderate to Severe Active Left-Sided Ulcerative Colitis PHASE3 TERMINATED InDex Pharmaceuticals Ulcerative Colitis DRUG: Cobitolimod 250 mg|DRUG: Cobitolimod 500 mg… Details
NCT06681181 A First-time in Human (FTIH) Study to Evaluate Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of GSK4528287 in Healthy Participants PHASE1 RECRUITING GlaxoSmithKline Colitis, Ulcerative DRUG: GSK4528287|DRUG: Placebo Details
NCT05992142 ChAracterizing the Remission Status in Patients With Ulcerative Colitis Treated by 5-ASA PHASE4 COMPLETED Belgian Inflammatory Bowel Disease Research and Development (BIRD) VZW Ulcerative Colitis DRUG: 5-ASA Details
NCT00787202 A Study To Investigate The Safety And Efficacy Of CP- 690,550 In Patients With Moderate And Severe Ulcerative Colitis. PHASE2 COMPLETED Pfizer Ulcerative Colitis DRUG: CP- 690 550|DRUG: CP- 690 550|DRUG: CP- 690… Details
NCT06321887 EffiCacy and sAfEty of Low doSe orAl iRon for Anaemia in IBD PHASE3 RECRUITING Liverpool University Hospitals NHS Foundation Trust Inflammatory Bowel Disease|Iron Deficiency Anemia DRUG: Ferrous fumarate syrup 2.5ml/70mg (22.5mg e… Details
NCT00207688 A Long Term Safety Study of Infliximab (Remicade) in in Ulcerative Colitis Patients None COMPLETED Janssen Research & Development, LLC Ulcerative Colitis DRUG: Infliximab 5 mg/kg|DRUG: Infliximab 10 mg/k… Details
NCT04677179 A Study of LY3471851 in Adult Participants With Moderately to Severely Active Ulcerative Colitis (UC) PHASE2 TERMINATED Nektar Therapeutics Colitis, Ulcerative DRUG: LY3471851|DRUG: Placebo Details
NCT02958865 Study to Compare Oral PF-06651600, PF-06700841 and Placebo in Subjects With Moderate to Severe Ulcerative Colitis PHASE2 COMPLETED Pfizer Ulcerative Colitis DRUG: PF-06651600 or Placebo|DRUG: PF-06700841 or… Details
NCT03943550 Double-Blinded, Placebo-Controlled Phase 1b Study for Safety, PK, Efficacy, PD of RO7049665 in Participants With Ulcerative Colitis (UC) PHASE1 TERMINATED Hoffmann-La Roche Ulcerative Colitis DRUG: RO7049665|DRUG: Placebo Details
NCT02840721 Safety, Efficacy, and Tolerability Study of PF-06480605 in Subjects With Moderate to Severe Ulcerative Colitis. PHASE2 COMPLETED Telavant, Inc. Colitis, Ulcerative DRUG: PF-06480605 Details
NCT04133194 Adherence of a 1.600 mg Single Tablet 5-ASA Treatment of Ulcerative Colitis PHASE4 RECRUITING Flemming Bendtsen Ulcerative Colitis DRUG: Mesalazine|DRUG: Mesalazine Details
NCT01465763 A Study Evaluating The Efficacy And Safety Of CP-690,550 In Patients With Moderate To Severe Ulcerative Colitis PHASE3 COMPLETED Pfizer Ulcerative Colitis DRUG: tofacitinib|DRUG: Placebo Details
NCT06636656 A Study to Test Whether BI 3032950 Helps People With Ulcerative Colitis PHASE2 RECRUITING Boehringer Ingelheim Ulcerative Colitis DRUG: BI 3032950 intravenous (Part A)|DRUG: BI 30… Details
NCT04996797 A Phase 2 Safety and Efficacy Study of Tulisokibart (MK-7240/PRA023) in Subjects With Moderately to Severely Active Ulcerative Colitis (MK-7240-005) PHASE2 ACTIVE_NOT_RECRUITING Prometheus Biosciences, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) Ulcerative Colitis DRUG: Tulisokibart|DEVICE: Companion Diagnostic (… Details
NCT01458951 A Study To Evaluate Both The Efficacy and Safety Profile of CP-690,550 In Patients With Moderately to Severely Active Ulcerative Colitis PHASE3 COMPLETED Pfizer Ulcerative Colitis DRUG: tofacitinib|DRUG: Placebo Details
NCT04499495 Assessment of 5-Aminosalicylic Acid Prescription Patterns and Treatment Outcomes in Patients With Ulcerative Colitis in Korea None COMPLETED Ferring Pharmaceuticals Ulcerative Colitis OTHER: PENTASA (mesalamine/ 5-Aminosalicylic acid… Details
NCT01959282 A Study of Safety and Effectiveness of JNJ-54781532 in Patients With Moderately to Severely Active Ulcerative Colitis PHASE2 COMPLETED Janssen Research & Development, LLC Colitis, Ulcerative DRUG: Placebo|DRUG: JNJ-54781532 25 mg once daily… Details
NCT02318667 Correlation of Soluble Suppression of Tumorigenicity 2 (ST2) With Golimumab (MK-8259) Response in Participants With Ulcerative Colitis (UC) (MK-8529-022). PHASE4 COMPLETED Merck Sharp & Dohme LLC Colitis, Ulcerative BIOLOGICAL: Golimumab Details
NCT00317356 A Dose-finding Study of OPC-6535 in Patients With Active Ulcerative Colitis PHASE2 TERMINATED Otsuka Pharmaceutical Co., Ltd. Colitis, Ulcerative DRUG: OPC-6535(Tetomilast) Details
NCT01470612 Long-Term Study Of CP-690,550 In Subjects With Ulcerative Colitis PHASE3 COMPLETED Pfizer Ulcerative Colitis DRUG: CP-690,550|DRUG: CP-690,550 Details

Disease IDDisease NameDefinitionCategoryRelated DrugsMechanism
No data available

Strategy IDTherapeutic StrategySynonymsRelated DrugsMechanism
S01 Anti-inflammatory inflammatory 5-Aminosalicylates (5-ASAs); corticosteroids Crohn's disease and ulcerative colitis are the two main com… Details
S06 Anti-fibrosis fibrosis; tissue remodelling GS-5745; STNM01 Tissue remodelling and destruction in patients with IBD is … Details
S07 Blockade of cytokine Cytokine signalling apremilast; roflumilast; filgotinib; tofacitinib; ABT494; ABT-874; ustekinumab; isankizumab; LY-2525623; AMG139; MEDI2079; guselkumab Various T-cell subsets, their differentiation pathways and … Details

An Olsalazine-Loaded Hollow Mesoporous Prussian Blue/Polydopamine Nanozyme Alle…

PMID: 40699132
Year: 2025
Relationship Type: Treatment Score: 6.5

Individuals diagnosed with inflammatory bowel disease (IBD) exhibit a markedly elevated prevalence of psychiatric disorders, particularly anxiety and…

Oral olsalazine/ellagic acid/ZnCl(2)-modified in situ-forming hydrogels allevia…

PMID: 40688678
Year: 2025
Relationship Type: Treatment Score: 6.5

Inflammatory bowel disease (IBD) is a kind of chronic non-specific intestinal inflammatory disease, which accompanied by various abnormal psychologic…

An olsalazine nanoneedle-embedded inulin hydrogel reshapes intestinal homeostas…

PMID: 38024237
Year: 2023
Relationship Type: Treatment Score: 6.5

Inflammatory bowel disease (IBD) is a chronic and refractory condition characterized by disrupted epithelial barrier, dysregulated immune balance, an…

The effect of olsalazine of chinese generic drugs on ulcerative colitis induced…

PMID: 37610966
Year: 2023
Relationship Type: Treatment Score: 6.5

PURPOSE: To explore effect and mechanism of olsalazine of Chinese generic drugs on ulcerative colitis induced by dextran sulfate sodium salt (DSS) in…

Orally Administrated Olsalazine-Loaded Multilayer Pectin/Chitosan/Alginate Comp…

PMID: 37068182
Year: 2023
Relationship Type: Treatment Score: 6.5

The pathogenesis of inflammatory bowel diseases (IBDs) including ulcerative colitis (UC) and Crohn's disease is extremely cloudy. Maintaining the lev…

Copper-olsalazine metal-organic frameworks as a nanocatalyst and epigenetic mod…

PMID: 36087871
Year: 2022
Relationship Type: Treatment Score: 6.5

Despite the extensive explorations of nanoscale metal-organic frameworks (nanoMOFs) in drug delivery, the intrinsic bioactivity of nanoMOFs, such as …

Pharmacokinetic and gut microbiota analyses revealed the effect of Lactobacillu…

PMID: 35697287
Year: 2022
Relationship Type: Treatment Score: 6.5

Olsalazine is a typical 5-aminosalicylic acid (5-ASA) drug that depends on gut microbiota to liberate its anti-inflammatory moiety 5-ASA in the treat…

Technetium-99 m labeling and evaluation of olsalazine: a novel agent for ulcera…

PMID: 26031480
Year: 2015
Relationship Type: Association Score: 6.3

Ulcerative colitis is a chronic disease having a regressive nature. Commonly used diagnostic methods have the disadvantage to be invasive, time-consu…