For research use only.
Catalog No.S1453 Synonyms: R115777
Molecular Weight(MW): 489.4
Tipifarnib (R115777) is a potent and specific farnesyltransferase (FTase) inhibitor with IC50 of 0.6 nM, its anti-proliferative effects are most prominent in H-ras or N-ras mutant cells. Phase 3.
Selleck's Tipifarnib has been cited by 25 publications
Purity & Quality Control
Choose Selective Transferase Inhibitors
|Description||Tipifarnib (R115777) is a potent and specific farnesyltransferase (FTase) inhibitor with IC50 of 0.6 nM, its anti-proliferative effects are most prominent in H-ras or N-ras mutant cells. Phase 3.|
|Features||A potent and selective farnesyl protein transferase inhibitor with significant antitumor effects.|
Using Tipifarnib 5 μM for 72 hours, the percentage of apoptotic cells is significantly higher in drug-treated compared to DMSO-treated LGL T-cells. Using T-cells from healthy donors, Tipifarnib reduces the percentage of IFNγ-positive cells in a time-dependent manner. Tipifarnib reduces the amount of activated Ras in precipitates compared to DMSO.  Tipifarnib exerts selective in vitro toxicity against clonal MDS hematopoiesis at concentrations less than 10 nM the effect being more prominent in white cell progenitors. This action is not due to apoptosis induction as both normal and MDS progenitors displays equivalent DiOC3 and annexin V expression up to 72 hours after exposure to Tipifarnib.  Combining Tipifarnib with 10 nM 4-OH-tamoxifen in the presence of E2 reduces the IC50 8-fold from 400 to 50 nM.  Tipifarnib induces apoptosis in U937 cells.  In addition, Tipifarnib inhibits isolated human farnesyltransferase for a lamin B peptide and for the K-RasB peptide with IC50 of 0.86 nM and 7.9 nM, respectively. 
|In vivo||Ki-67 is lower in the tumors treated with E2 withdrawal plus R115777 compared with E2 withdrawal alone. The combination of tamoxifen and R115777 results in significantly lower Ki-67 compared with either tamoxifen or R115777 alone (mean of 5% versus 16.9% and 67.3%, respectively).  In contrast, no significant difference in apoptotic scores is seen between the treatment groups. R115777 alone also reduces the CTI compared with control. The combination of tamoxifen and R115777 or R115777 coupled with E2 withdrawal is most effective at lowering the CTI (0.8 and 0.7, respectively), which may account for the decrease in tumor volume. |
-  Margolin KA, et al. Clin Cancer Res. 2012, 18(4), 1129-1137.
-  Bai F, et al. Cancer Immunol Immunother. 2012, 61(4), 523-533.
-  Kotsianidis I, et al. Acta Haematol. 2008, 120(1), 51-56.
|In vitro||DMSO||14 mg/mL (28.6 mM)|
|In vivo||Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
15% Captisol+citrate vehicle
For best results, use promptly after mixing.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
In vivo Formulation Calculator (Clear solution)
|Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)|
|Dosage||mg/kg||Average weight of animals||g||Dosing volume per animal||ul||Number of animals|
|Step 2: Enter the in vivo formulation (Different batches have different solubility ratios, please contact Selleck to provide you with the correct ratio)|
|% DMSO % % Tween 80 % ddH2O|
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
Method for preparing in vivo formulation：Take DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH2O，mix and clarify.
1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:
Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)
*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2
Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Clinical Trial Information
|NCT Number||Recruitment||interventions||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT04284774||Not yet recruiting||Drug: Tipifarnib||Ectomesenchymoma|Recurrent Adrenal Gland Pheochromocytoma|Recurrent Ependymoma|Recurrent Ewing Sarcoma|Recurrent Hepatoblastoma|Recurrent Langerhans Cell Histiocytosis|Recurrent Malignant Germ Cell Tumor|Recurrent Malignant Glioma|Recurrent Medulloblastoma|Recurrent Melanoma|Recurrent Neuroblastoma|Recurrent Non-Hodgkin Lymphoma|Recurrent Osteosarcoma|Recurrent Peripheral Primitive Neuroectodermal Tumor|Recurrent Rhabdoid Tumor|Recurrent Rhabdoid Tumor of the Kidney|Recurrent Rhabdomyosarcoma|Recurrent Soft Tissue Sarcoma|Recurrent Thyroid Gland Carcinoma|Recurrent WHO Grade II Glioma|Refractory Adrenal Gland Pheochromocytoma|Refractory Ependymoma|Refractory Ewing Sarcoma|Refractory Hepatoblastoma|Refractory Langerhans Cell Histiocytosis|Refractory Malignant Germ Cell Tumor|Refractory Malignant Glioma|Refractory Medulloblastoma|Refractory Melanoma|Refractory Neuroblastoma|Refractory Non-Hodgkin Lymphoma|Refractory Osteosarcoma|Refractory Peripheral Primitive Neuroectodermal Tumor|Refractory Rhabdoid Tumor|Refractory Rhabdoid Tumor of the Kidney|Refractory Rhabdomyosarcoma|Refractory Soft Tissue Sarcoma|Refractory Thyroid Gland Carcinoma|Refractory WHO Grade II Glioma|Wilms Tumor||National Cancer Institute (NCI)||September 20 2020||Phase 2|
|NCT03496766||Recruiting||Drug: Tipifarnib||Non Small Cell Lung Cancer||Spanish Lung Cancer Group||May 7 2018||Phase 2|
|NCT02807272||Recruiting||Drug: Tipifarnib||Leukemia Myelomonocytic Chronic||Kura Oncology Inc.||October 2016||Phase 2|
|NCT02779777||Terminated||Drug: Tipifarnib||Myelodysplastic Syndromes||Kura Oncology Inc.||May 2016||Phase 2|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.