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trans-Pralsetinib (trans-BLU-667)

Alias: trans-Blu667trans-Blu 667trans-Blu-667
Cat No.:V31736 Purity: ≥98%
trans-Pralsetinib (cis-Blu667) is a highly potent and selective inhibitor of rearranged during transfection (RET), with IC50 ranging from 0.3 to 0.4 nM for WT RET and four enzyme variants (V804L, V804M, M918T, CCDC6-RET), and with broad, robust and anti-tumor activity against multiple RET-driven solid tumor types.
trans-Pralsetinib (trans-BLU-667)
trans-Pralsetinib (trans-BLU-667) Chemical Structure CAS No.: 2097132-93-7
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
50mg
Other Sizes

Other Forms of trans-Pralsetinib (trans-BLU-667):

  • Pralsetinib (BLU 667)
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description

trans-Pralsetinib (cis-Blu667) is a highly potent and selective inhibitor of rearranged during transfection (RET), with IC50 ranging from 0.3 to 0.4 nM for WT RET and four enzyme variants (V804L, V804M, M918T, CCDC6-RET), and with broad, robust and anti-tumor activity against multiple RET-driven solid tumor types.

Biological Activity I Assay Protocols (From Reference)
References
Jason D. Brubaker, et al. Inhibitors of ret. US20170121312A1.; http://www.blueprintmedicines.com/wp-content/uploads/2017/10/BLU-667-EORTC-2017-BPM.pdf [2]. Subbiah V, et al. Precision Targeted Therapy With BLU-667 for RET-Driven Cancers. American Association for Cancer Research. 10.1158/2159-8290.CD-18-0338.
Additional Infomation
Pralsetinib is a kinase inhibitor. Its mechanism of action is as a transfection rearrangement (RET) inhibitor.
See also: Pralsetinib (note moved to).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C27H32FN9O2
Molecular Weight
533.600487709045
Exact Mass
533.266
CAS #
2097132-93-7
Related CAS #
Pralsetinib;2097132-94-8
PubChem CID
129073603
Appearance
Light yellow to yellow solid powder
LogP
3.1
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
9
Rotatable Bond Count
8
Heavy Atom Count
39
Complexity
816
Defined Atom Stereocenter Count
1
SMILES
FC1C=NN(C=1)C1=CC=C(C=N1)[C@H](C)NC(C1(CCC(C2N=C(C=C(C)N=2)NC2C=C(C)NN=2)CC1)OC)=O
InChi Key
GBLBJPZSROAGMF-SIYOEGHHSA-N
InChi Code
InChI=1S/C27H32FN9O2/c1-16-11-22(33-23-12-17(2)35-36-23)34-25(31-16)19-7-9-27(39-4,10-8-19)26(38)32-18(3)20-5-6-24(29-13-20)37-15-21(28)14-30-37/h5-6,11-15,18-19H,7-10H2,1-4H3,(H,32,38)(H2,31,33,34,35,36)/t18-,19?,27?/m0/s1
Chemical Name
N-[(1S)-1-[6-(4-fluoropyrazol-1-yl)pyridin-3-yl]ethyl]-1-methoxy-4-[4-methyl-6-[(5-methyl-1H-pyrazol-3-yl)amino]pyrimidin-2-yl]cyclohexane-1-carboxamide
Synonyms
trans-Blu667trans-Blu 667trans-Blu-667
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~100 mg/mL (~187.41 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 4.55 mg/mL (8.53 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 45.5 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (4.69 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.8741 mL 9.3703 mL 18.7406 mL
5 mM 0.3748 mL 1.8741 mL 3.7481 mL
10 mM 0.1874 mL 0.9370 mL 1.8741 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
Title:Tumor-agnostic Precision Immuno-oncology and Somatic Targeting Rational for You (TAPISTRY) Platform Study
Status:Active, not recruiting
updateDate:2026-05-08
Ctid:NCT04589845

Link: https://clinicaltrials.gov/ct2/show/NCT04589845

Conditions:Solid Tumors
Interventions:Camonsertib
Phase:Phase 2
Title:Neoadjuvant Umbrella Trial for Patients With Unresectable Stage III NSCLC Harboring Rare Mutations.
Status:Recruiting
updateDate:2026-04-21
Ctid:NCT06563999

Link: https://clinicaltrials.gov/ct2/show/NCT06563999

Conditions:Lung Cancer Stage III|Mutation
Interventions:Ensartinib
Phase:Phase 2
Title:A Study of Multiple Therapies in Biomarker-selected Participants With Resectable Stages IB-III Non-small Cell Lung Cancer (NSCLC)
Status:Recruiting
updateDate:2026-04-03
Ctid:NCT04302025

Link: https://clinicaltrials.gov/ct2/show/NCT04302025

Conditions:Non-small Cell Lung Cancer
Interventions:Divarasib
Phase:Phase 2
View More

Title:A Study of Pralsetinib Versus Standard of Care for First-Line Treatment of Advanced Non-Small Cell Lung Cancer (NSCLC)
Status:Terminated
updateDate:2026-03-05
Ctid:NCT04222972

Link: https://clinicaltrials.gov/ct2/show/NCT04222972

Conditions:RET-fusion Non Small Cell Lung Cancer|Lung Neoplasm|Carcinoma, Non-Small-Cell Lung|Respiratory Tract Neoplasms|Thoracic Neoplasms|Neoplasms by Site|Neoplasms|Lung Diseases|Respiratory Tract Disease|Carcinoma, Bronchogenic|Bronchial Diseases|Head and Neck Neoplasms|Adenocarcinoma|Carcinoma|Neoplasms by Histologic Type|Neoplasms, Germ Cell and Embryonal|Neoplasms, Nerve Tissue
Interventions:Nab-Paclitaxel
Phase:Phase 3
Title:A Real-world Study of Pralsetinib Combined With Leucogen in the Treatment of RET Fusion-positive NSCLC
Status:Not yet recruiting
updateDate:2026-02-18
Ctid:NCT07418879

Link: https://clinicaltrials.gov/ct2/show/NCT07418879

Conditions:Non-small Cell Lung Cancer|RET Fusion|Pralsetinib
Interventions:Leucogen
Phase:N/A
Title:Genotype-Driven Neoadjuvant Therapy for Locally Advanced Thyroid Cancer: A Real-World Cohort Study
Status:Not yet recruiting
updateDate:2025-06-08
Ctid:NCT07010393

Link: https://clinicaltrials.gov/ct2/show/NCT07010393

Conditions:Thyroid Neoplasms
Interventions:Bemosuzumab
Phase:Phase 4
Title:Phase 1/2 Study of the Highly-selective RET Inhibitor, Pralsetinib (BLU-667), in Participants With Thyroid Cancer, Non-Small Cell Lung Cancer, and Other Advanced Solid Tumors
Status:Completed
updateDate:2025-05-31
Ctid:NCT03037385

Link: https://clinicaltrials.gov/ct2/show/NCT03037385

Conditions:RET-altered Non Small Cell Lung Cancer|Medullary Thyroid Cancer|RET-altered Papillary Thyroid Cancer|RET-altered Colon Cancer|RET-altered Solid Tumors|Lung Neoplasm|Carcinoma, Non-Small-Cell Lung|Thyroid Diseases|Thyroid Neoplasm|Thyroid Cancer, Papillary|Carcinoma, Neuroendocrine|Respiratory Tract Neoplasms|Thoracic Neoplasms|Neoplasms by Site|Neoplasms|Lung Diseases|Respiratory Tract Disease|Carcinoma, Bronchogenic|Bronchial Neoplasms|Endocrine System Diseases|Endocrine Gland Neoplasm|Head and Neck Neoplasms|Adenocarcinoma, Papillary|Adenocarcinoma|Carcinoma|Neoplasms, Glandular and Epithelial|Neoplasms by Histologic Type|Neuroendocrine Tumors|Neuroectodermal Tumors|Neoplasms, Germ Cell and Embryonal|Neoplasms, Nerve Tissue|Colonic Neoplasms|Colorectal Neoplasms|Intestinal Neoplasms|Gastrointestinal Neoplasms|Digestive System Neoplasm|Digestive System Disease|Gastrointestinal Disease|Colonic Diseases|Intestinal Disease
Interventions:pralsetinib (BLU-667)
Phase:Phase 1/Phase 2
Title:KPMNG Study of MOlecular Profiling Guided Therapy Based on Genomic Alterations in Advanced Solid Tumors II
Status:Recruiting
updateDate:2025-04-27
Ctid:NCT05525858

Link: https://clinicaltrials.gov/ct2/show/NCT05525858

Conditions:Solid Tumor|Advanced Solid Tumor|Metastatic Cancer
Interventions:Pralsetinib
Phase:
Title:A Study Evaluating Targeted Therapies in Participants Who Have Advanced Solid Tumors With Genomic Alterations or Protein Expression Patterns Predictive of Response
Status:Completed
updateDate:2025-01-08
Ctid:NCT04632992

Link: https://clinicaltrials.gov/ct2/show/NCT04632992

Conditions:Advanced Unresectable or Metastatic Solid Malignancy
Interventions:Pralsetinib
Phase:Phase 2
Title:Efficacy of Organoid-Based Drug Screening to Guide Treatment for Locally Advanced Thyroid Cancer
Status:Recruiting
updateDate:2024-12-05
Ctid:NCT06482086

Link: https://clinicaltrials.gov/ct2/show/NCT06482086

Conditions:Locally Advanced Thyroid Gland Carcinoma
Interventions:Larotrectinib
Phase:Phase 2
Title:A Study of Pralsetinib Versus Standard of Care (SOC) for Treatment of RET-Mutated Medullary Thyroid Cancer (MTC).
Status:Withdrawn
updateDate:2024-01-05
Ctid:NCT04760288

Link: https://clinicaltrials.gov/ct2/show/NCT04760288

Conditions:Medullary Thyroid Cancer
Interventions:Vandetanib
Phase:Phase 3
Title:The Rome Trial From Histology to Target: the Road to Personalize Target Therapy and Immunotherapy
Status:Unknown status
updateDate:2023-10-03
Ctid:NCT04591431

Link: https://clinicaltrials.gov/ct2/show/NCT04591431

Conditions:Breast Cancer|Gastrointestinal Cancer|Non Small Cell Lung Cancer|Other Cancer
Interventions:Alpelisib
Phase:Phase 2
Title:Pre-Approval Access Program (PAAP) for Pralsetinib (BLU-667) in Patients With Unresectable or Metastatic NSCLC or MTC
Status:Approved for marketing
updateDate:2021-08-13
Ctid:NCT04204928

Link: https://clinicaltrials.gov/ct2/show/NCT04204928

Conditions:Non-Small Cell Lung Cancer|Medullary Thyroid Cancer
Interventions:pralsetinib (BLU-667)
Phase:

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