Olaparib (AZD2281; KU0059436)

Alias: AZD2281; Ku-0059436; AZD2281; AZD-2281; AZD 2281; KU59436; KU-59436; KU 59436; KU0059436; KU-0059436; KU 0059436; Olaparib; trade name Lynparza
Cat No.:V0300 Purity: ≥98%
Olaparib (formerly also known as AZD-2281; KU-59436; KU0059436; trade name Lynparza) is a potent,novel and orally bioavailable small molecule inhibitor of the nuclear enzyme poly(ADP-ribose) polymerase (PARP) with potential anticancer activity.
Olaparib (AZD2281; KU0059436) Chemical Structure CAS No.: 763113-22-0
Product category: PARP
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

Olaparib (formerly also known as AZD-2281; KU-59436; KU0059436; trade name Lynparza) is a potent, novel and orally bioavailable small molecule inhibitor of the nuclear enzyme poly(ADP-ribose) polymerase (PARP) with potential anticancer activity. It has an IC50 of 1 nM for PARP2 and 5 nM for PARP1 that inhibits PARP. It might have antitumor, radiosensitizing, and chemosensitizing effects. Olaparib binds to PARP selectively and inhibits it, preventing PARP from repairing single-strand DNA breaks. By inhibiting PARP, agents that damage DNA may be more cytotoxic and may reverse the radioresistance and chemoresistance of tumor cells. In 2014, the FDA approved olaparib for the treatment of advanced ovarian cancer.

Biological Activity I Assay Protocols (From Reference)
Targets
PARP-2 ( IC50 = 1 nM ); PARP-1 ( IC50 = 5 nM ); tankyrase-1 ( IC50 = 1.5 μM ); Autophagy; Mitophagy
ln Vitro

Olaparib would combat mutations in either BRCA1 or BRCA2. Tankyrase-1 does not affect olaparib (IC50 >1 μM). At concentrations ranging from 30 to 100 nM, olaparib was able to inhibit the PARP-1 activity in SW620 cells. Compared to BRCA1- and BRCA2-proficient cell lines (Hs578T, MDA-MB-231, and T47D), olaparib is more sensitive to BRCA1-deficient cell lines (MDA-MB-463 and HCC1937).[1] Olaparib is highly susceptible to KB2P cells because PARP inhibition suppresses base excision repair, which could cause single-strand breaks to become double-strand breaks during DNA replication and trigger recombination pathways that are BRCA2-dependent.[2]

ln Vivo
Olaparib (10 mg/kg, p.o.) greatly inhibits tumor growth in SW620 xenografts when combined with temozolomide.[1] Olaparib (50 mg/kg i.p. daily) responds well to Brca1-/-;p53-/- mammary tumors, but not to HR-deficient Ecad-/-;p53-/- mammary tumors. In mice bearing tumors, olaparib even does not exhibit dose-limiting toxicity. [3] Olaparib has been used to treat BRCA-mutated tumors, including cancers of the breast, prostate, and ovary. Additionally, Olaparib selectively inhibits tumor cells deficient in ATM (Ataxia Telangiectasia Mutated), suggesting that it may be a useful treatment for ATM mutant lymphoid tumors.[4]
Enzyme Assay
The assay assessed Olaparib's capacity to suppress PARP-1 enzyme activity. An alternative method of measuring PARP-2 activity inhibition involves binding down the recombinant PARP-2 protein in a 96-well plate with white walls using an antibody specific to PARP-2. Measurements of PARP-2 activity are made after 3H-NAD+ DNA additions. Scintillant is added after washing in order to quantify 3H-incorporated ribosylations. An AlphaScreen assay for tankyrase-1 is created, involving the incubation of HIS-tagged recombinant TANK-1 protein in a 384-well ProxiPlate assay with biotinylated NAD+. A proximity signal is produced by adding alpha beads to bind the HIS and biotin tags; the loss of this signal is directly correlated with TANK-1 activity inhibition. At least three replications of each experiment are conducted.
Cell Assay
The potentiation factor, or PF50 value, is determined by dividing the IC50 of the alkylating agent methylmethane sulfonate (MMS) used in the control growth by the IC50 of the MMS plus PARP inhibitor. Olaparib is tested for MMS screening at a fixed 200 nM concentration using HeLa B cells. The concentrations of olaparib that are tested on the colorectal cell line SW620 are 1, 3, 10, 100, and 300 nM. Sulforhodamine B (SRB) assay is used to measure cell growth.
Animal Protocol
Mice: Four treatment groups (n = 5) are randomly assigned to mice with tumors measuring 220-250 mm3: Vehicle control (10% DMSO in PBS/10% 2-hydroxy-propyl-β-cyclodextrin daily for 5 days by oral gavage), Olaparib (50 mg/kg daily for 5 days by oral gavage), 10 Gy fractionated radiotherapy (2 Gy daily for 5 days), and Olaparib and 10 Gy (5×2 Gy) fractionated radiotherapy (with olaparib given 30 min prior to each daily 2 Gy dose of radiation) are the options available. Measurements of tumor volume are made every day until they reach 1000 mm3. For each group of tumors, the number of days needed for each tumor to quadruple in size from the beginning of the treatment is calculated (relative tumor volume×4; RTV4).
References

[1]. J Med Chem . 2008 Oct 23;51(20):6581-91.

[2]. Clin Cancer Res . 2008 Jun 15;14(12):3916-25.

[3]. Proc Natl Acad Sci U S A . 2008 Nov 4;105(44):17079-84.

[3]. Blood . 2010 Nov 25;116(22):4578-87.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C24H23FN4O3
Molecular Weight
434.46
Exact Mass
434.18
Elemental Analysis
C, 66.35; H, 5.34; F, 4.37; N, 12.90; O, 11.05
CAS #
763113-22-0
Related CAS #
763113-22-0
Appearance
White solid powder
SMILES
C1CC1C(=O)N2CCN(CC2)C(=O)C3=C(C=CC(=C3)CC4=NNC(=O)C5=CC=CC=C54)F
InChi Key
FDLYAMZZIXQODN-UHFFFAOYSA-N
InChi Code
InChI=1S/C24H23FN4O3/c25-20-8-5-15(14-21-17-3-1-2-4-18(17)22(30)27-26-21)13-19(20)24(32)29-11-9-28(10-12-29)23(31)16-6-7-16/h1-5,8,13,16H,6-7,9-12,14H2,(H,27,30)
Chemical Name
4-[[3-[4-(cyclopropanecarbonyl)piperazine-1-carbonyl]-4-fluorophenyl]methyl]-2H-phthalazin-1-one
Synonyms
AZD2281; Ku-0059436; AZD2281; AZD-2281; AZD 2281; KU59436; KU-59436; KU 59436; KU0059436; KU-0059436; KU 0059436; Olaparib; trade name Lynparza
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: 86~100 mg/mL (197.9~230.2 mM)
Water: <1 mg/mL
Ethanol: <1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: 10 mg/mL (23.02 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 100.0 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: ≥ 5 mg/mL (11.51 mM) (saturation unknown) in 5% DMSO + 40% PEG300 + 5% Tween80 + 50% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

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Solubility in Formulation 3: ≥ 5 mg/mL (11.51 mM) (saturation unknown) in 5% DMSO + 95% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.


Solubility in Formulation 4: ≥ 2.5 mg/mL (5.75 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in 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 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

Solubility in Formulation 5: ≥ 2.5 mg/mL (5.75 mM) (saturation unknown) in 10% DMF 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 6: ≥ 2.5 mg/mL (5.75 mM) (saturation unknown) in 10% DMF 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

Solubility in Formulation 7: ≥ 2.5 mg/mL (5.75 mM) (saturation unknown) in 10% DMF 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.

Solubility in Formulation 8: ≥ 2.08 mg/mL (4.79 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 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

Solubility in Formulation 9: ≥ 0.5 mg/mL (1.15 mM) (saturation unknown) in 1% DMSO 99% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 10: 20 mg/mL (46.03 mM) in 0.5% CMC-Na/saline water (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.3017 mL 11.5085 mL 23.0171 mL
5 mM 0.4603 mL 2.3017 mL 4.6034 mL
10 mM 0.2302 mL 1.1509 mL 2.3017 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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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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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.
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Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT02446704 Active
Recruiting
Drug: Olaparib
Drug: Temozolomide
Small Cell Lung Cancer Zofia Piotrowska October 13, 2015 Phase 1
Phase 2
NCT03641755 Active
Recruiting
Drug: Olaparib
Drug: Sapacitabine
Breast Cancer Dana-Farber Cancer Institute October 1, 2018 Phase 1
NCT03047135 Active
Recruiting
Drug: Olaparib Prostate Sidney Kimmel Comprehensive
Cancer Center at Johns Hopkins
March 1, 2017 Phase 2
NCT04123366 Active
Recruiting
Biological: Pembrolizumab
Drug: Olaparib
Solid Tumors Merck Sharp & Dohme LLC November 18, 2019 Phase 2
NCT04076579 Active
Recruiting
Drug: Olaparib
Drug: Trabectedin
Sarcoma
Sarcoma Metastatic
University of Michigan Rogel
Cancer Center
March 17, 2020 Phase 2
Biological Data
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