TILUDRONIC ACID

US Previously Marketed

Details

Stereochemistry	ACHIRAL
Molecular Formula	C7H9ClO6P2S
Molecular Weight	318.608
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

OP(O)(=O)C(SC1=CC=C(Cl)C=C1)P(O)(O)=O

InChI

InChIKey=DKJJVAGXPKPDRL-UHFFFAOYSA-N

InChI=1S/C7H9ClO6P2S/c8-5-1-3-6(4-2-5)17-7(15(9,10)11)16(12,13)14/h1-4,7H,(H2,9,10,11)(H2,12,13,14)

HIDE SMILES / InChI

Molecular Formula	C7H9ClO6P2S
Molecular Weight	318.608
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Description
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020707s006lbl.pdf | https://www.drugbank.ca/drugs/DB01133 | http://www.centerwatch.com/drug-information/fda-approved-drugs/drug/243/skelid-tiludronate-disodium | https://www.ncbi.nlm.nih.gov/pubmed/11249559

Tiludronic acid is a bisphosphonate characterized by a (4-chlorophenylthio) group on the carbon atom of the basic P-C-P structure common to all bisphosphonates. Tiludronate is a first generation (non-nitrogenous) bisphosphonate in the same family as etidronate and clodronate. Tiludronate affects calcium metabolism and inhibits bone resorption and soft tissue calcification. Of the tiludronate that is resorbed (from oral preparation) or infused (for intravenous drugs), about 50% is excreted unchanged by the kidney. The remainder has a very high affinity for bone tissue, and is rapidly absorbed onto the bone surface. Tiludronic acid is marketed under the tradename Skelid. In vitro studies indicate that tiludronate disodium acts primarily on bone through a mechanism that involves inhibition of osteoclastic activity with a probable reduction in the enzymatic and transport processes that lead to resorption of the mineralized matrix. Bone resorption occurs following recruitment, activation, and polarization of osteoclasts. Tiludronate disodium appears to inhibit osteoclasts through at least two mechanisms: disruption of the cytoskeletal ring structure, possibly by inhibition of protein-tyrosine-phosphatase, thus leading to detachment of osteoclasts from the bone surface and the inhibition of the osteoclastic proton pump. SKELID is indicated for treatment of Paget's disease of bone (osteitis deformans).

Originator

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
ATP 10 Target ID: CHEMBL2366048 Sources: https://www.ncbi.nlm.nih.gov/pubmed/21111853 \| https://www.drugbank.ca/drugs/DB01133 \| https://www.ncbi.nlm.nih.gov/pubmed/20722616	Inhibitor 8297
Osteoclasts 3 Target ID: CHEMBL612548 Sources: https://www.ncbi.nlm.nih.gov/pubmed/8573421 \| https://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020707s006lbl.pdf	Inhibitor 8297

Conditions

Condition	Modality	Targets	Highest Phase	Product
Paget's disease 16 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020707s006lbl.pdf https://www.ncbi.nlm.nih.gov/pubmed/11249559	Primary		Approved 8429	SKELID Approved Use SKELID is indicated for treatment of Paget's disease of bone (osteitis deformans). Launch Date 8.5769283E11

C_max

Value	Dose	Analyte	Population
1.1 mg/L EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	200 mg 1 times / day multiple, oral dose: 200 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN
2.3 mg/L EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	400 mg 1 times / day multiple, oral dose: 400 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN
4.7 mg/L EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	600 mg 1 times / day multiple, oral dose: 600 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN
7.8 mg/L EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	800 mg 1 times / day multiple, oral dose: 800 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN

AUC

Value	Dose	Analyte	Population
10.3 mg × h/L EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	200 mg 1 times / day multiple, oral dose: 200 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN
25 mg × h/L EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	400 mg 1 times / day multiple, oral dose: 400 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN
46.8 mg × h/L EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	600 mg 1 times / day multiple, oral dose: 600 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN
80 mg × h/L EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	800 mg 1 times / day multiple, oral dose: 800 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN

T_1/2

Value	Dose	Analyte	Population
78 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	400 mg 1 times / day multiple, oral dose: 400 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN
65.7 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	600 mg 1 times / day multiple, oral dose: 600 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN
72 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/8911885	800 mg 1 times / day multiple, oral dose: 800 mg route of administration: Oral experiment type: MULTIPLE co-administered:	TILUDRONIC ACID plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN

Doses

Dose	Population	Adverse events
800 mg 1 times / day steady, oral Studied dose Dose: 800 mg, 1 times / day Route: oral Route: steady Dose: 800 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/8911885/	healthy, 18 - 45 years n = 10 Health Status: healthy Age Group: 18 - 45 years Sex: M Population Size: 10 Sources: https://pubmed.ncbi.nlm.nih.gov/8911885/	Sources: https://pubmed.ncbi.nlm.nih.gov/8911885/
1200 mg 1 times / day steady, oral Higher than recommended Dose: 1200 mg, 1 times / day Route: oral Route: steady Dose: 1200 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/8427515/	unhealthy, 57 - 87 years n = 6 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 57 - 87 years Sex: M+F Population Size: 6 Sources: https://pubmed.ncbi.nlm.nih.gov/8427515/	Other AEs: Gastrointestinal disturbance... Other AEs: Gastrointestinal disturbance (3 patients) Sources: https://pubmed.ncbi.nlm.nih.gov/8427515/
600 mg 1 times / day steady, oral Studied dose Dose: 600 mg, 1 times / day Route: oral Route: steady Dose: 600 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 68 years n = 28 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 68 years Sex: M+F Population Size: 28 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	DLT: Gastrointestinal symptom NOS... Other AEs: Nausea, Diarrhoea... Dose limiting toxicities: Gastrointestinal symptom NOS (75%) Other AEs: Nausea (7 patients) Diarrhoea (7 patients) Arthralgia (2 patients) Dyspepsia (5 patients) Skeletal pain (3 patients) Vomiting (6 patients) Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/
400 mg 1 times / day steady, oral Recommended Dose: 400 mg, 1 times / day Route: oral Route: steady Dose: 400 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 72 years n = 29 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 72 years Sex: M+F Population Size: 29 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	DLT: Gastrointestinal symptom NOS... Dose limiting toxicities: Gastrointestinal symptom NOS (31%) Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/

AEs

AE	Significance	Dose	Population
Gastrointestinal disturbance	3 patients	1200 mg 1 times / day steady, oral Higher than recommended Dose: 1200 mg, 1 times / day Route: oral Route: steady Dose: 1200 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/8427515/	unhealthy, 57 - 87 years n = 6 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 57 - 87 years Sex: M+F Population Size: 6 Sources: https://pubmed.ncbi.nlm.nih.gov/8427515/
Arthralgia	2 patients	600 mg 1 times / day steady, oral Studied dose Dose: 600 mg, 1 times / day Route: oral Route: steady Dose: 600 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 68 years n = 28 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 68 years Sex: M+F Population Size: 28 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/
Skeletal pain	3 patients	600 mg 1 times / day steady, oral Studied dose Dose: 600 mg, 1 times / day Route: oral Route: steady Dose: 600 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 68 years n = 28 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 68 years Sex: M+F Population Size: 28 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/
Dyspepsia	5 patients	600 mg 1 times / day steady, oral Studied dose Dose: 600 mg, 1 times / day Route: oral Route: steady Dose: 600 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 68 years n = 28 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 68 years Sex: M+F Population Size: 28 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/
Vomiting	6 patients	600 mg 1 times / day steady, oral Studied dose Dose: 600 mg, 1 times / day Route: oral Route: steady Dose: 600 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 68 years n = 28 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 68 years Sex: M+F Population Size: 28 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/
Diarrhoea	7 patients	600 mg 1 times / day steady, oral Studied dose Dose: 600 mg, 1 times / day Route: oral Route: steady Dose: 600 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 68 years n = 28 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 68 years Sex: M+F Population Size: 28 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/
Nausea	7 patients	600 mg 1 times / day steady, oral Studied dose Dose: 600 mg, 1 times / day Route: oral Route: steady Dose: 600 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 68 years n = 28 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 68 years Sex: M+F Population Size: 28 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/
Gastrointestinal symptom NOS	75% DLT, Disc. AE	600 mg 1 times / day steady, oral Studied dose Dose: 600 mg, 1 times / day Route: oral Route: steady Dose: 600 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 68 years n = 28 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 68 years Sex: M+F Population Size: 28 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/
Gastrointestinal symptom NOS	31% DLT, Disc. AE	400 mg 1 times / day steady, oral Recommended Dose: 400 mg, 1 times / day Route: oral Route: steady Dose: 400 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/	unhealthy, 72 years n = 29 Health Status: unhealthy Condition: Paget's disease of bone Age Group: 72 years Sex: M+F Population Size: 29 Sources: https://pubmed.ncbi.nlm.nih.gov/9307742/

Sourcing

Vendor/Aggregator	ID	URL
001 Chemical	DY578611	https://www.001chemical.com/chem/89987-06-4
3B Scientific (Wuhan) Corp	3B2-1368	http://www.3bsc.com/index/pro_info.php?id=55084
AHH Chemical co.,ltd	MT-59523	http://www.ahhchemical.com/product/MT-59523.html
Alfa Chemistry	ALP89987064	https://reagents.alfa-chemistry.com/product/tiludronate-disodium-salt-hydrate-cas-89987-06-4-free-acid-402.html
Ambinter	Amb22269245	http://www.ambinter.com/reference/22269245
BLD Pharm	BD154148	http://www.bldpharm.com/products/89987-06-4.html
ChemMol	49422201	http://www.chemmol.com/chemmol/49422201.html
ChemMol	99162429	http://www.chemmol.com/chemmol/99162429.html
Finetech	FT-0630969	http://www.finetechnology-ind.com/prod/detail/pub/89987-06-4.html
Glentham Life Sciences	GP4498	http://www.glentham.com/products/product/GP4498/
Molcore	MC578611	https://www.molcore.com/product/89987-06-4
OChem	21129	http://www.ocheminc.com/index.php?act=psearch&pid=987T064
Smolecule	S560068	https://www.smolecule.com/products/s560068
THE BioTek	bt-363849	https://www.thebiotek.com/product/others/bt-363849
iChemical	EBD52449	http://www.ichemical.com/chemicals/cas-89987-06-4

PubMed

Title	Date	PubMed
A possible mechanism of the specific action of bisphosphonates on osteoclasts: tiludronate preferentially affects polarized osteoclasts having ruffled borders.	1995 Aug	8554921
Human pharmacokinetics of tiludronate.	1995 Nov	8573422
Paget's disease of the spine and its management.	2001 Oct	11718191
Suppression of viability and acetyl-LDL metabolism in RAW 264 macrophage-like and smooth muscle cells by bisphosphonates in vitro.	2002 Oct	12500427
New insights into the molecular mechanisms of action of bisphosphonates.	2003	14529538
Drugs in development: bisphosphonates and metalloproteinase inhibitors.	2003	12716443
Bisphosphonates antagonise bone growth factors' effects on human breast cancer cells survival.	2003 Jul 7	12838321
Medical treatment of vertebral osteoporosis.	2003 Oct	13680313
Management of Paget's disease of bone.	2004 Aug	15187244
The role of bisphosphonates in the management of advanced cancer with a focus on non-small-cell lung cancer. Part 1: Mechanisms of action, role of biomarkers and preclinical applications.	2005	15775688
Prediction of genotoxicity of chemical compounds by statistical learning methods.	2005 Jun	15962942
[Treatment of Paget's disease of bone with zoledronic acid].	2005 Nov-Dec	16454155
Comparative effects of antiresorptive agents on bone mineral density and bone turnover in postmenopausal women.	2006	18046915
-511 C/T IL1B gene polymorphism is associated to resistance to bisphosphonates treatment in Paget disease of bone.	2006 Apr	16257277
Biochemical response to bisphosphonate therapy in pagetic patients with skull involvement.	2006 Jul	16868670
Relative binding affinities of bisphosphonates for human bone and relationship to antiresorptive efficacy.	2006 May	16185944
Management of age-related osteoporosis and prevention of associated fractures.	2006 Sep	18360603
Efficacy of tiludronate in the treatment of horses with signs of pain associated with osteoarthritic lesions of the thoracolumbar vertebral column.	2007 Mar	17331024
Pharmacological effects of tiludronate in horses after long-term immobilization.	2007 Sep	17604709
Optimizing dosing frequencies for bisphosphonates in the management of postmenopausal osteoporosis: patient considerations.	2008	19281054
Paget's disease 2: exploring diagnosis, management and support strategies.	2009 Feb 24-Mar 2	19326647
Bisphosphonates: molecular mechanisms of action and effects on bone cells, monocytes and macrophages.	2010	20722616
Bisphosphonates and risk of atrial fibrillation: a meta-analysis.	2010	20170505
Tiludronate infusion in the treatment of bone spavin: a double blind placebo-controlled trial.	2010 Jul	20636772
Long-term treatment with bisphosphonates and their safety in postmenopausal osteoporosis.	2010 Jul 21	20668715
Bisphosphonate protonation states, conformations, and dynamics on bone mineral probed by solid-state NMR without isotope enrichment.	2010 Sep	20554022
Arylamino methylene bisphosphonate derivatives as bone seeking matrix metalloproteinase inhibitors.	2013 Nov 1	24071448

Patents

Sample Use Guides

In Vivo Use Guide

A single 400-mg daily oral dose of SKELID (Tiludronic acid), taken with 6 to 8 ounces of plain water only, should be administered for a period of 3 months. Beverages other than plain water (including mineral water), food (see below), and some medications. Patients should not lie down for at least 30 minutes after taking this medication. SKELID should not be taken within 2 hours of food.

Route of Administration: Oral

In Vitro Use Guide

The ability of tiludronate to inhibit proton transport was 5-fold higher in kidney-derived chicken vesicles (IC50 = 1.1 mM) and 10,000-fold higher in vesicles derived from chicken osteoclasts (IC50 = 466 nM). Tiludronate also potently inhibited proton transport in yeast microsomal preparations (IC50 = 3.5 uM) and inhibited the activity of purified yeast V-ATPase.

Substance Class	Chemical Created by `admin` on `Sat Dec 16 16:16:13 UTC 2023` Edited by `admin` on `Sat Dec 16 16:16:13 UTC 2023`
Record UNII	6PNS59HP4Y
Record Status	`Validated (UNII)`
Record Version

Download

Name

Type

Language

TILUDRONIC ACID

Official Name

English

TILUDRONATE [VANDF]

Common Name

English

SR-41319

Code

English

Tiludronic acid [WHO-DD]

Common Name

English

TILUDRONATE

Common Name

English

SR 41319

Code

English

TILUDRONIC ACID [MART.]

Common Name

English

TILUDRONIC ACID [MI]

Common Name

English

tiludronic acid [INN]

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C67439