Details
Stereochemistry | ACHIRAL |
Molecular Formula | C19H20F2N4O4 |
Molecular Weight | 406.3833 |
Optical Activity | NONE |
Defined Stereocenters | 0 / 0 |
E/Z Centers | 0 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
CN1C(=O)C(OC2=CC=C(F)C=C2F)=CC3=CN=C(NC(CCO)CCO)N=C13
InChI
InChIKey=JYYLVUFNAHSSFE-UHFFFAOYSA-N
InChI=1S/C19H20F2N4O4/c1-25-17-11(10-22-19(24-17)23-13(4-6-26)5-7-27)8-16(18(25)28)29-15-3-2-12(20)9-14(15)21/h2-3,8-10,13,26-27H,4-7H2,1H3,(H,22,23,24)
Pamapimod (R-1503, Ro4402257) is a potent and selective inhibitor of p38 mitogen-activated protein kinase alpha. The preclinical data support the conclusion that pamapimod has the ability to inhibit the signs and symptoms of rheumatoid arthritis and other autoimmune diseases. Pamapimod was being developed for use in the treatment of rheumatoid arthritis. There is no clear-cut evidence that pamapimod alone or in the presence of methotrexate is efficacious in subjects with rheumatoid arthritis but it does cause adverse effects. It is unlikely that pamapimod will be useful in the treatment of rheumatoid arthritis.
Originator
Approval Year
Targets
Primary Target | Pharmacology | Condition | Potency |
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Target ID: CHEMBL260 Sources: https://www.ncbi.nlm.nih.gov/pubmed/18776065 |
0.014 µM [IC50] | ||
Target ID: CHEMBL3961 Sources: https://www.ncbi.nlm.nih.gov/pubmed/18776065 |
0.48 µM [IC50] |
Conditions
Condition | Modality | Targets | Highest Phase | Product |
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Primary | Unknown Approved UseUnknown |
Cmax
Value | Dose | Co-administered | Analyte | Population |
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6.7 μg/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/20100913 |
300 mg 1 times / day multiple, oral dose: 300 mg route of administration: Oral experiment type: MULTIPLE co-administered: |
PAMAPIMOD plasma | Homo sapiens population: UNHEALTHY age: ADULT sex: FEMALE / MALE food status: UNKNOWN |
AUC
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
21.9 μg × h/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/20100913 |
300 mg 1 times / day multiple, oral dose: 300 mg route of administration: Oral experiment type: MULTIPLE co-administered: |
PAMAPIMOD plasma | Homo sapiens population: UNHEALTHY age: ADULT sex: FEMALE / MALE food status: UNKNOWN |
T1/2
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
4.2 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/20100913 |
300 mg 1 times / day multiple, oral dose: 300 mg route of administration: Oral experiment type: MULTIPLE co-administered: |
PAMAPIMOD plasma | Homo sapiens population: UNHEALTHY age: ADULT sex: FEMALE / MALE food status: UNKNOWN |
Doses
Dose | Population | Adverse events |
---|---|---|
300 mg 1 times / day multiple, oral (unknown) Highest studied dose Dose: 300 mg, 1 times / day Route: oral Route: multiple Dose: 300 mg, 1 times / day Co-administed with:: methotrexate(orally once a week, commencing at 7.5 mg (three 2.5-mg tablets) on day 1) Sources: |
unhealthy n = 48 Health Status: unhealthy Condition: rheumatoid arthritis Sex: M+F Food Status: UNKNOWN Population Size: 48 Sources: |
Disc. AE: rheumatoid arthritis flare, gastrointestinal infection... AEs leading to discontinuation/dose reduction: rheumatoid arthritis flare (1 pt) Sources: gastrointestinal infection (1 pt) Gastrointestinal disorder (3 patients) skin disorders (2 patients) Elevated liver enzyme levels (3 patients) |
AEs
AE | Significance | Dose | Population |
---|---|---|---|
gastrointestinal infection | 1 pt Disc. AE |
300 mg 1 times / day multiple, oral (unknown) Highest studied dose Dose: 300 mg, 1 times / day Route: oral Route: multiple Dose: 300 mg, 1 times / day Co-administed with:: methotrexate(orally once a week, commencing at 7.5 mg (three 2.5-mg tablets) on day 1) Sources: |
unhealthy n = 48 Health Status: unhealthy Condition: rheumatoid arthritis Sex: M+F Food Status: UNKNOWN Population Size: 48 Sources: |
rheumatoid arthritis flare | 1 pt Disc. AE |
300 mg 1 times / day multiple, oral (unknown) Highest studied dose Dose: 300 mg, 1 times / day Route: oral Route: multiple Dose: 300 mg, 1 times / day Co-administed with:: methotrexate(orally once a week, commencing at 7.5 mg (three 2.5-mg tablets) on day 1) Sources: |
unhealthy n = 48 Health Status: unhealthy Condition: rheumatoid arthritis Sex: M+F Food Status: UNKNOWN Population Size: 48 Sources: |
skin disorders | 2 patients Disc. AE |
300 mg 1 times / day multiple, oral (unknown) Highest studied dose Dose: 300 mg, 1 times / day Route: oral Route: multiple Dose: 300 mg, 1 times / day Co-administed with:: methotrexate(orally once a week, commencing at 7.5 mg (three 2.5-mg tablets) on day 1) Sources: |
unhealthy n = 48 Health Status: unhealthy Condition: rheumatoid arthritis Sex: M+F Food Status: UNKNOWN Population Size: 48 Sources: |
Elevated liver enzyme levels | 3 patients Disc. AE |
300 mg 1 times / day multiple, oral (unknown) Highest studied dose Dose: 300 mg, 1 times / day Route: oral Route: multiple Dose: 300 mg, 1 times / day Co-administed with:: methotrexate(orally once a week, commencing at 7.5 mg (three 2.5-mg tablets) on day 1) Sources: |
unhealthy n = 48 Health Status: unhealthy Condition: rheumatoid arthritis Sex: M+F Food Status: UNKNOWN Population Size: 48 Sources: |
Gastrointestinal disorder | 3 patients Disc. AE |
300 mg 1 times / day multiple, oral (unknown) Highest studied dose Dose: 300 mg, 1 times / day Route: oral Route: multiple Dose: 300 mg, 1 times / day Co-administed with:: methotrexate(orally once a week, commencing at 7.5 mg (three 2.5-mg tablets) on day 1) Sources: |
unhealthy n = 48 Health Status: unhealthy Condition: rheumatoid arthritis Sex: M+F Food Status: UNKNOWN Population Size: 48 Sources: |
PubMed
Title | Date | PubMed |
---|---|---|
Pamapimod, a novel p38 mitogen-activated protein kinase inhibitor: preclinical analysis of efficacy and selectivity. | 2008 Dec |
|
Clinically relevant advances in rheumatoid arthritis therapy. | 2009 Sep 14 |
|
Differential effects of p38MAP kinase inhibitors on the expression of inflammation-associated genes in primary, interleukin-1beta-stimulated human chondrocytes. | 2010 Jul |
|
Selective p38alpha inhibitors clinically evaluated for the treatment of chronic inflammatory disorders. | 2010 Mar 25 |
|
Does the p38 MAP kinase inhibitor pamapimod have potential for the treatment of rheumatoid arthritis? | 2010 Oct |
Patents
Sample Use Guides
In Vivo Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/19357113
Rheumatoid arthritis patients receiving stable doses of methotrexate were randomised to one of six dose groups and received 12 weeks of double-blind pamapimod (up to 300 mg once daily) or matching placebo.
Route of Administration:
Oral
In Vitro Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/18776065
After LPS stimulation of the human myelomonocytic cell line (THP-1), secretion of TNF was inhibited by pamapimod, with an EC50 of 0.025 uM. Pamapimod suppressed TNF- and IL-1 production in whole blood, with EC50 values of 0.40 and 0.10 uM, respectively.
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C2149
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ACTIVE MOIETY