| ln Vitro |
Ifinatamab deruxtecan inhibited the growth of B7-H3-expressing cancer cells in vitro, but had no inhibitory effect on B7-H3-negative cancer cells[1]. Ifinatamab deruxtecan (6 days) potently and selectively inhibited the growth of B7-H3-expressing RH-41 and MFE-280 cancer cells in vitro, but had no activity against B7-H3-negative CCRF-CEM cells[2]. Ifinatamab deruxtecan (10 μg/mL; 72 hours) induced DNA damage and apoptosis in B7-H3-expressing RH-41 cancer cells in vitro[2].
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| ln Vivo |
Ifinatamab deruxtecan (3–10 mg/kg; intravenous injection; day 0 and day 14) exhibited potent dose-dependent antitumor activity against mouse rhabdomyosarcoma xenografts, achieving 90% and 98% tumor growth inhibition rates (TGI) at doses of 3 mg/kg and 10 mg/kg, respectively [2]. Ifinatamab deruxtecan (0.3–3 mg/kg; intravenous injection; day 0 and day 14) exhibited potent antitumor activity against mouse endometrial adenocarcinoma xenografts, achieving 67% TGI at a dose of 0.3 mg/kg and completely inhibiting tumor growth (100% TGI) at doses of 1 mg/kg and 3 mg/kg [2]. Ifinatamab deruxtecan (1–10 mg/kg; intravenous injection; day 0 and day 14) exhibited potent dose-dependent antitumor activity against mouse lung adenocarcinoma xenografts [2].
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| Cell Assay |
Western Blot Analysis [2]
Cell Types: Human rhabdomyosarcoma (RH-41) cells Tested Concentrations: 10 μg/mL Incubation Duration: 72 hours Experimental Results: Induced phosphorylation of Chk1 (a DNA damage marker) in RH-41 cells. Induced lysis of PARP (an apoptosis marker) in RH-41 cells. |
| Animal Protocol |
Animal/Disease Models:CAnN.Cg-Foxn1nu/CrlCrlj (Lung Adenocarcinoma Xenograft Model) [2]
Doses: 1 mg/kg; 3 mg/kg; 10 mg/kg Route of Administration: Intravenous injection; Day 0 and Day 14 Experimental Results: Compared with the vector control group, the tumor growth inhibition rate (TGI) of the 1 mg/kg dose group was 71% (P < 0.001). Compared with the vector control group, the tumor growth inhibition rate (TGI) of the 3 mg/kg dose group was 95% (P < 0.001). Compared with the vector control group, the tumor growth inhibition rate (TGI) of the 10 mg/kg dose group was 99% (P < 0.001). |
| References |
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| CAS # |
2484870-92-8
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|---|---|
| Appearance |
Colorless to light yellow liquid
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| Synonyms |
DS-7300a; MABX-9001a; I-DXd
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| HS Tariff Code |
2934.99.9001
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| 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)
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| Solubility (In Vitro) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
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| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
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.
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