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Details

Stereochemistry ACHIRAL
Molecular Formula C15H10Cl2N2O2
Molecular Weight 321.158
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of LONIDAMINE

SMILES

OC(=O)C1=NN(CC2=CC=C(Cl)C=C2Cl)C3=C1C=CC=C3

InChI

InChIKey=WDRYRZXSPDWGEB-UHFFFAOYSA-N
InChI=1S/C15H10Cl2N2O2/c16-10-6-5-9(12(17)7-10)8-19-13-4-2-1-3-11(13)14(18-19)15(20)21/h1-7H,8H2,(H,20,21)

HIDE SMILES / InChI

Molecular Formula C15H10Cl2N2O2
Molecular Weight 321.158
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description
Curator's Comment: description was created based on several sources, including https://www.ncbi.nlm.nih.gov/pubmed/12814259 | https://www.ncbi.nlm.nih.gov/pubmed/12972521 | https://www.ncbi.nlm.nih.gov/pubmed/7285632 | https://www.ncbi.nlm.nih.gov/pubmed/26831515

Lonidamine is a derivative of the indazole-3-carboxylic acid, with limited antineoplastic activity as a single agent but with exceptional potential in modulating the activities of conventional chemotherapeutic agents such as N-mustard alkylating agents and anthracyclines as well as hyperthermia, radiation therapy and photodynamic therapy. The most critical property of Lonidamine is its selective activity against a broad range of tumors with little to no effect on normal tissues provided that doses are below a threshold level of ~400 mg/m^2 (oral or i.v. doses). Selective effects of Lonidamine on tumors compared to other potential targets probably result from the dependence of most tumors on glycolytic metabolism, but the exact mechanism of specificity is still not fully known. Current evidence indicates that Lonidamine inhibits lactate export by the proton-linked monocarboxylate transporter(s) (MCT) and pyruvate uptake into mitochondria via the mitochondrial pyruvate carrier (MPC), whereas inhibition of respiration involves both diminished mitochondrial uptake of pyruvate via the MPC as well as inhibition of the mitochondrial electron-transport chain at Complex II and perhaps also Complex I, in both instances at the ubiquinone reduction step. There is also evidence that the drug may indirectly inhibit hexokinase as well as possibly other glycolytic and pentose shunt enzymes as a result of cytosolic acidification. Key problems that remain to be addressed are the production of Lonidamine under GMP conditions since Angelini Pharmaceuticals in Rome, Italy, the sole commercial source of this drug, stopped producing it in 2006. In addition, utilization of Lonidamine in the US requires IND approval by the FDA, which has previously been granted for a number of clinical trials. Finally, even though LND is a potent enhancer of the activity of a number of potent anti-cancer agents, potentially less toxic (and patentable) “targeted-tumor agents” are replacing traditional chemotherapy. Another problem remaining to be addressed is the limited solubility of Lonidamine at neutral pH. Oral delivery has led to variable results; more soluble derivatives that can be administered by the intravenous administration are needed to accurately control the dosing schedules.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
36.8 µM [Kd]
36.4 µM [Kd]
40.4 µM [Kd]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
15.5 μg/mL
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LONIDAMINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE
food status: UNKNOWN
22.4 μg/mL
600 mg single, oral
dose: 600 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LONIDAMINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
21.8 μg/mL
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LONIDAMINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
186.2 μg × h/mL
600 mg single, oral
dose: 600 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LONIDAMINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
136.1 μg × h/mL
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LONIDAMINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
3.9 h
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LONIDAMINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE
food status: UNKNOWN
12.1 h
600 mg single, oral
dose: 600 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LONIDAMINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
14.8 h
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LONIDAMINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
Doses

Doses

DosePopulationAdverse events​
520 mg/m2 3 times / day multiple, oral
Highest studied dose
Dose: 520 mg/m2, 3 times / day
Route: oral
Route: multiple
Dose: 520 mg/m2, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
DLT: Myalgia...
Other AEs: Testicula pain, Chest pain...
Dose limiting toxicities:
Myalgia (grade 1-3, 100%)
Other AEs:
Testicula pain (grade 1-4, 33.3%)
Chest pain (grade 2-3, 33.3%)
Photophobia (grade 4, 16.7%)
Ototoxicity (grade 1, 16.7%)
Nausea (grade 1-2, 33.3%)
Sources:
AEs

AEs

AESignificanceDosePopulation
Ototoxicity grade 1, 16.7%
520 mg/m2 3 times / day multiple, oral
Highest studied dose
Dose: 520 mg/m2, 3 times / day
Route: oral
Route: multiple
Dose: 520 mg/m2, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Nausea grade 1-2, 33.3%
520 mg/m2 3 times / day multiple, oral
Highest studied dose
Dose: 520 mg/m2, 3 times / day
Route: oral
Route: multiple
Dose: 520 mg/m2, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Myalgia grade 1-3, 100%
DLT
520 mg/m2 3 times / day multiple, oral
Highest studied dose
Dose: 520 mg/m2, 3 times / day
Route: oral
Route: multiple
Dose: 520 mg/m2, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Testicula pain grade 1-4, 33.3%
520 mg/m2 3 times / day multiple, oral
Highest studied dose
Dose: 520 mg/m2, 3 times / day
Route: oral
Route: multiple
Dose: 520 mg/m2, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Chest pain grade 2-3, 33.3%
520 mg/m2 3 times / day multiple, oral
Highest studied dose
Dose: 520 mg/m2, 3 times / day
Route: oral
Route: multiple
Dose: 520 mg/m2, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Photophobia grade 4, 16.7%
520 mg/m2 3 times / day multiple, oral
Highest studied dose
Dose: 520 mg/m2, 3 times / day
Route: oral
Route: multiple
Dose: 520 mg/m2, 3 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Overview

Overview

OverviewOther

Other InhibitorOther SubstrateOther Inducer







Drug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
inconclusive [IC50 2.5119 uM]
inconclusive [IC50 31.8107 uM]
inconclusive [IC50 39.8107 uM]
no [IC50 31.6628 uM]
no [IC50 >10 uM]
no
no
yes [Inhibition 10 uM]
yes [Inhibition 10 uM]
Drug as victim

Drug as victim

TargetModalityActivityMetaboliteClinical evidence
no
Tox targets

Tox targets

TargetModalityActivityMetaboliteClinical evidence
PubMed

PubMed

TitleDatePubMed
New scaffolds of natural origin as Integrase-LEDGF/p75 interaction inhibitors: virtual screening and activity assays.
2013-10
2-Deoxy-D-glucose cooperates with arsenic trioxide to induce apoptosis in leukemia cells: involvement of IGF-1R-regulated Akt/mTOR, MEK/ERK and LKB-1/AMPK signaling pathways.
2012-12-15
Increased apoptotic efficacy of lonidamine plus arsenic trioxide combination in human leukemia cells. Reactive oxygen species generation and defensive protein kinase (MEK/ERK, Akt/mTOR) modulation.
2011-12-01
Discovery of N-hydroxyindole-based inhibitors of human lactate dehydrogenase isoform A (LDH-A) as starvation agents against cancer cells.
2011-03-24
Adjudin-mediated Sertoli-germ cell junction disassembly affects Sertoli cell barrier function in vitro and in vivo.
2010-11
Curcumin stimulates reactive oxygen species production and potentiates apoptosis induction by the antitumor drugs arsenic trioxide and lonidamine in human myeloid leukemia cell lines.
2010-10
AF-2364 is a prospective spermicide candidate.
2010-05
The fourth isoform of the adenine nucleotide translocator inhibits mitochondrial apoptosis in cancer cells.
2010-05
A target-based high throughput screen yields Trypanosoma brucei hexokinase small molecule inhibitors with antiparasitic activity.
2010-04-13
Cancer as a metabolic disease.
2010-01-27
Improving outcome of chemotherapy of metastatic breast cancer by docosahexaenoic acid: a phase II trial.
2009-12-15
International guidelines for management of metastatic breast cancer: combination vs sequential single-agent chemotherapy.
2009-09-02
Modulation of cellular radiation responses by 2-deoxy-D-glucose and other glycolytic inhibitors: implications for cancer therapy.
2009-09
Development of a yeast bio-assay to screen anti-mitochondrial drugs.
2009-09
Human cytomegalovirus US9 protein contains an N-terminal signal sequence and a C-terminal mitochondrial localization domain, and does not alter cellular sensitivity to apoptosis.
2009-05
Effects of fotemustine or dacarbasine on a melanoma cell line pretreated with therapeutic proton irradiation.
2009-04-09
Inhibition of glycolysis modulates prednisolone resistance in acute lymphoblastic leukemia cells.
2009-02-26
Drugs targeting the mitochondrial pore act as cytotoxic and cytostatic agents in temozolomide-resistant glioma cells.
2009-02-05
Whole brain radiotherapy with radiosensitizer for brain metastases.
2009-01-06
Quality of life in brain metastases radiation trials: a literature review.
2008-10
Neuropsychological testing and biomarkers in the management of brain metastases.
2008-09-17
Optimizing radiotherapy of brain tumours by a combination of temozolomide & lonidamine.
2008-08
Glycosyl and polyalcoholic prodrugs of lonidamine.
2008-04-01
The anti-trypanosomal agent lonidamine inhibits Trypanosoma brucei hexokinase 1.
2008-04
Canadian supportive care recommendations for the management of neutropenia in patients with cancer.
2008-01
Arsenic-based antineoplastic drugs and their mechanisms of action.
2008
[Treatment and post-treatment with lonidamine in human colon carcinoma HT-29 cell line].
2008
The oncoprotein H-RasV12 increases mitochondrial metabolism.
2007-12-01
CFTR-dependent Cl- secretion in Xenopus laevis lung epithelium.
2007-08-15
Immunohistochemical profile of some neurotransmitters and neurotrophins in the seminiferous tubules of rats treated by lonidamine.
2007-06-06
Evaluation of contraceptive activity of methanol extract of Dendrophthoe falcata stem in male albino rats.
2007-05-30
Lonidamine affects testicular steroid hormones in immature mice.
2007-05-15
Mitomycin C and Vinorelbine for second-line chemotherapy in NSCLC--a phase II trial.
2007-04-10
The H+-linked monocarboxylate transporter (MCT1/SLC16A1): a potential therapeutic target for high-risk neuroblastoma.
2006-12
Pharmacologic inhibitors of extracellular signal-regulated kinase (ERKs) and c-Jun NH(2)-terminal kinase (JNK) decrease glutathione content and sensitize human promonocytic leukemia cells to arsenic trioxide-induced apoptosis.
2006-12
Ten years of experience with weekly chemotherapy in metastatic breast cancer patients: multivariate analysis of prognostic factors.
2006-11
Chemosensitization by knockdown of adenine nucleotide translocase-2.
2006-09-15
Does granulocyte colony-stimulating factor worsen anemia in early breast cancer patients treated with epirubicin and cyclophosphamide?
2006-07-01
Emerging drug therapies for benign prostatic hyperplasia.
2006-03
Administration of zoledronic acid enhances the effects of docetaxel on growth of prostate cancer in the bone environment.
2006-01-17
[Antimitochondrial agents: a new class of anticancer agents].
2006-01
Surrogate markers and survival in women receiving first-line combination anthracycline chemotherapy for advanced breast cancer.
2005-11-28
Impact of five prophylactic filgrastim schedules on hematologic toxicity in early breast cancer patients treated with epirubicin and cyclophosphamide.
2005-10-01
Long-term effects of lonidamine on mouse testes.
2005-10
Lonidamine transiently affects spermatogenesis in pubertal CD1 mice.
2005-10
Contribution of gap junctional communication between tumor cells and astroglia to the invasion of the brain parenchyma by human glioblastomas.
2005-02-16
Mitomycin C, vinblastine and cisplatin (MVP): an active and well-tolerated salvage regimen for advanced breast cancer.
2005-02-14
Clinical Evidence Supporting the Role of Lonidamine for the Treatment of BPH.
2005
Lonidamine: basic science and rationale for treatment of prostatic proliferative disorders.
2005
The development of lonidamine for benign prostatic hyperplasia and other indications.
2005
Patents

Sample Use Guides

450 mg/day
Route of Administration: Oral
A malignant human glioma (U373MG) cell line was used in these studies. TMZ (temozolomide) (20, 40 or 60 microM) or LND (Lonidamine) (100, 150 or 200 microM), or the combination of both (20 and 100 microM, respectively) in 0.1 per cent dimethyl sulphoxide (DMSO) were added three days after setting up cultures, in six well plates (5 x 10(4) cells/ well). The effects of continuous treatment for two days on proliferation response and cytotoxicity were studied after trypsinization; by cell counts and the uptake of trypan blue dye (0.5%). For the study of radiation (60Co-Gamma-rays, 2 Gy) response, drugs were removed 4 h after irradiation and cultures were grown further in drug free, normal growth medium for another 20 h or 44 h.
Substance Class Chemical
Created
by admin
on Wed Apr 02 07:37:07 GMT 2025
Edited
by admin
on Wed Apr 02 07:37:07 GMT 2025
Record UNII
U78804BIDR
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
DORIDAMINA
Preferred Name English
LONIDAMINE
INN   MART.   MI   WHO-DD  
INN  
Official Name English
LONIDAMINE [MART.]
Common Name English
LONIDAMINE [MI]
Common Name English
NSC-758419
Code English
lonidamine [INN]
Common Name English
Lonidamine [WHO-DD]
Common Name English
NSC-741419
Code English
1-(2,4-DICHLOROBENZYL)-1H-INDAZOLE-3-CARBOXYLIC ACID
Systematic Name English
1-(2,4-DICHLOROPHENYL)-1H-INDAZOL-3-CARBOXYLIC ACID
Systematic Name English
Classification Tree Code System Code
NCI_THESAURUS C798
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
NCI_THESAURUS C1744
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
WHO-VATC QL01XX07
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
WHO-ATC L01XX07
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
Code System Code Type Description
FDA UNII
U78804BIDR
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
ChEMBL
CHEMBL1257030
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
PUBCHEM
39562
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
DRUG CENTRAL
1598
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
NSC
741419
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
CAS
50264-69-2
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
SMS_ID
100000082026
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
EPA CompTox
DTXSID5020782
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
WIKIPEDIA
LONIDAMINE
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
NSC
758419
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
ECHA (EC/EINECS)
256-510-0
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
MESH
C016371
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
MERCK INDEX
m6895
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY Merck Index
DRUG BANK
DB06266
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
INN
4324
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
EVMPD
SUB08571MIG
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
CHEBI
50138
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
NCI_THESAURUS
C1146
Created by admin on Wed Apr 02 07:37:07 GMT 2025 , Edited by admin on Wed Apr 02 07:37:07 GMT 2025
PRIMARY
Related Record Type Details
ACTIVE MOIETY