Ripretinib (DCC-2618)

Alias: DCC2618; DCC-2618; DCC 2618; Qinlock
Cat No.:V3284 Purity: ≥98%
Ripretinib (DCC-2618; DCC2618; Qinlock) is a potent, orally bioactive, and spectrum-selective pan KIT and PDGFRA inhibitor approved in 2020 as an anticancer medication for treating gastrointestinal stromalcancers.
Ripretinib (DCC-2618) Chemical Structure CAS No.: 1442472-39-0
Product category: PDGFR
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description
Ripretinib (DCC-2618; DCC2618; Qinlock) is a potent, orally bioactive, and spectrum-selective pan KIT and PDGFRA inhibitor approved in 2020 as an anticancer medication for treating gastrointestinal stromal cancers. It inhibits several other kinase targets associated with systemic mastocytosis as well as KIT D816V. In 2020, ripretinib was authorized for the management of advanced gastrointestinal stromal tumors in adults. DCC-2618 is known to impede the growth and endurance of multiple human mast cell lines, such as HMC-1, ROSA, and MCPV-1, in addition to primary neoplastic mast cells isolated from patients suffering from advanced systemic mastocytosis (IC50<1 μM). Additionally, leukemic monocytes from patients with chronic myelomonocytic leukemia with or without concurrent systemic mastocytosis, blast cells from patients with acute myeloid leukemia, and primary neoplastic eosinophils from patients with systemic mastocytosis or eosinophilic leukemia all showed decreased growth and survival when exposed to DCC-2618. Clinical trials are currently being conducted to investigate DCC-2618, which has shown efficacy in vivo in patients with advanced systemic mastocytosis.
Biological Activity I Assay Protocols (From Reference)
Targets
PDGFR; WT KIT (IC50 = 4 nM); D816H KIT (IC50 = 5 nM); V654A KIT (IC50 = 8 nM); D816V KIT (IC50 = 14 nM)
ln Vitro

DCC-2618 is a type II switch-control inhibitor of KIT that, in the absence of activating mutations like KIT D816V, stops KIT in its inactive state. DCC-2618 robustly inhibits exon 17, exon 9/13, exon 9/14, and exon 9/17 KIT mutants, as well as exon 11/17 KIT mutants, including exon 17 D816V, D816G, D820A, D820E, D820Y, N822K, N822Y, N822H, and Y823D primary or secondary mutations in CHO cells transiently transfected with both single and double (primary/secondary) KIT mutants[1]. Several human mast cell lines (HMC-1, ROSA, MCPV-1) and primary neoplastic mast cells from patients with advanced systemic mastocytosis (IC50 <1 μM) are inhibited by DCC-2618 in terms of proliferation and survival. DCC-2618 suppresses the growth and survival of leukemic monocytes from patients with chronic myelomonocytic leukemia with or without concurrent systemic mastocytosis, blast cells from patients with acute myeloid leukemia, and primary neoplastic eosinophils from patients with systemic mastocytosis or eosinophilic leukemia. DCC-2618 also inhibits the growth of endothelial cells and may have other pharmaceutical effects on angiogenesis related to systemic mastocytosis. DCC-2618 inhibits the release of histamine from basophils and tryptase from mast cells that is mediated by IgE[2].

ln Vivo
In the GIST T1 xenograft model, DCC-2618 administration at 50 mg/kg results in an ED90 for KIT phosphorylation inhibition, which corresponds to an EC90 concentration of roughly 470 ng/mL. This oral dose causes nearly total tumor stasis when taken twice a day. In a KIT exon 17 N822K AML xenograft model and a patient-derived xenograft (PDX) GIST expressing KIT exon 11 delW557K558/exon 17 Y823D, this dosage of DCC-2618 results in tumor regressions[1]. DCC-2618 inhibits PDGFRA- and KIT-driven tumor growth in xenograft studies, including KIT exon 17 mutants present in AML (N822K), GIST (Y823D), and mastocytosis (D816V) models[3].
Enzyme Assay
In order to assess KIT and BTK signaling, ROSAKIT WT, ROSAKIT D816V, HMC-1.1, and HMC-1.2 cells were incubated for 4 hours at 37°C in either control medium or DCC-2618 (0.5–5 μM). Western blotting was done essentially according to other instructions. In order to assess the downstream signaling pathways of KIT, HMC-1.1, HMC-1.2, ROSAKIT WT, and ROSAKIT D816V cells were initially pre-cultured for an entire night in Iscove-modified Dulbecco medium that was devoid of stem cell factor and fetal calf serum. Then, for 90 minutes at 37°C, DCC-2618 (0.001–10 μM) was applied to 106 cells from each line. Following the course of treatment, ROSAKIT WT cells were stimulated for 10 minutes at room temperature using 10% of the supernatants of Chinese hamster ovary cells transfected with the murine scf (kl) gene (CHO-KL). Western blotting was then carried out essentially in the same manner as previously mentioned.
Cell Assay
In order to assess KIT and BTK signaling, HMC-1.1, HMC-1.2, ROSA (KIT WT), and ROSA (KIT D816V) cells are incubated for 4 hours at 37°C in either control medium or DCC-2618 (0.5–5 μM). One method used is western blotting.
Animal Protocol
xenograft models (mice)
100 mg/kg/day or 25 mg/kg/day or 50 mg/kg BID
oral
References

[1]. Cancer Res (2015) 75 (15_Supplement): 2690.

[2]. Haematologica . 2018 May;103(5):799-809.

[3]. AACR Annual Meeting. 2018: Abstract 3925; Poster Section 39, Board 5.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C24H21BRFN5O2
Molecular Weight
510.37
Exact Mass
509.09
Elemental Analysis
C, 56.48; H, 4.15; Br, 15.66; F, 3.72; N, 13.72; O, 6.27
CAS #
1442472-39-0
Related CAS #
1442472-39-0;Ripretinib HCl 1225278-16-9 (wrong structure for DCC-2618);
Appearance
White to off-white solid powder
SMILES
CCN1C2=CC(=NC=C2C=C(C1=O)C3=CC(=C(C=C3Br)F)NC(=O)NC4=CC=CC=C4)NC
InChi Key
CEFJVGZHQAGLHS-UHFFFAOYSA-N
InChi Code
InChI=1S/C24H21BrFN5O2/c1-3-31-21-12-22(27-2)28-13-14(21)9-17(23(31)32)16-10-20(19(26)11-18(16)25)30-24(33)29-15-7-5-4-6-8-15/h4-13H,3H2,1-2H3,(H,27,28)(H2,29,30,33)
Chemical Name
1-[4-bromo-5-[1-ethyl-7-(methylamino)-2-oxo-1,6-naphthyridin-3-yl]-2-fluorophenyl]-3-phenylurea
Synonyms
DCC2618; DCC-2618; DCC 2618; Qinlock
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: >100mg/mL
Water: <1mg/mL
Ethanol: ~10 mg/mL
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.9594 mL 9.7968 mL 19.5936 mL
5 mM 0.3919 mL 1.9594 mL 3.9187 mL
10 mM 0.1959 mL 0.9797 mL 1.9594 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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Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT03673501 Active
Recruiting
Drug: DCC-2618
Tablets
Drug: Sunitinib
Gastrointestinal Stromal Tumors Deciphera Pharmaceuticals LLC February 11, 2019 Phase 3
NCT05697107 Active
Recruiting
Drug: Ripretinib Oral Tablet Gastrointestinal Stromal Tumors Peking University May 20, 2021
NCT05132738 Recruiting Drug: Ripretinib treatment Gastrointestinal Stromal Tumors RenJi Hospital August 1, 2021 Not Applicable
NCT05734105 Recruiting Drug: Ripretinib
Drug: Sunitinib
GIST Deciphera Pharmaceuticals LLC November 2023 Phase 3
NCT05957367 Recruiting Drug: Ripretinib
Drug: DCC-3116
GIST
Colorectal Cancer
Deciphera Pharmaceuticals LLC September 28, 2023 Phase 1
Phase 2
Biological Data
  • DCC-2618

    DCC-2618 and its active metabolite DP-5439 inhibit proliferation of neoplastic mast cells.2018 May;103(5):799-809.

  • DCC-2618

    DCC-2618 inhibits phosphorylation of KIT and other targets in neoplastic mast cells.2018 May;103(5):799-809.

  • DCC-2618

    Effects of DCC-2618 on anti-IgE-induced histamine release from normal basophils.2018 May;103(5):799-809.

  • DCC-2618

    DCC-2618 and DP-5439 induce apoptosis in neoplastic mast cells.2018 May;103(5):799-809.

  • DCC-2618

    Effects of DCC-2618 and DP-5439 on proliferation and survival of acute myeloid leukemia (AML) and chronic myelomonocytic leukemia (CMML).2018 May;103(5):799-809.

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