PF 06650808

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Structure of PF06650808.

PF 06650808

CAS 1822383-80-1

A biologic for cancer treatment (Pfizer Inc.)

  • Originator Pfizer
  • Class Antineoplastics
  • Mechanism of Action Notch-3 receptor antagonists
  • No development reported Solid tumours
  • 24 Jun 2018 Biomarkers information updated
  • 28 Apr 2018 No recent reports of development identified for phase-I development in Solid-tumours(Late-stage disease) in USA (IV)
  • 01 Jul 2017 Pfizer completes a phase I trial in Solid tumours (Late-stage disease) in USA (IV) (NCT02129205)

Company: Pfizer

Target: Neurogenic locus notch homolog protein 3 (NOTCH3): Activation and mutation of the NOTCH signaling pathway can lead to cancer.

Disease: Cancer

Notes: PF06650808 is an antibody-drug conjugate that delivers a cytotoxic payload molecule directly to tumor cells, explained Andreas Maderna, an associate research fellow at Pfizer. The payload molecule in PF06650808 was inspired by the marine natural product dolostatin 10, which is produced by cyanobacteria consumed by a type of sea slug.

https://cen.acs.org/articles/94/i15/New-drug-candidates-shine-San-Diego.html

PATENT

WO 2015171907

https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2015171907

The present invention relates to stable isotopic identification of biologic products, methods of stable isotopic identification of such biologic products, and stable isotopic methods and systems for correlating biologic products to the processes by which they are made.

front page image

PATENT

WO 2018045058

https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2018045058&tab=PCTDESCRIPTION&maxRec=1000

CLIP

Rosen, L.S.; Wesolowski, R.; Gibson, B.; et al.
A Phase 1 dose escalation, safety, and pharmacokinetic study of PF-06650808, an anti-Notch3 antibody drug conjugate, in adult patients with advanced solid tumors
Eur Cancer Congr (September 25-29, Vienna) 2015, Abst 3OLBA 

Maderna, A.
Therapeutic targeting the NOTCH3 receptor with antibody drug conjugates
251st Am Chem Soc (ACS) Natl Meet (March 13-17, San Diego) 2016, Abst MEDI 262 

Hurvitz, S.A.; von Euw, E.; O’Brien, N.; et al.
Preclinical evaluation of targeting Notch-3 in breast cancer
107th Annu Meet Am Assoc Cancer Res (AACR) (April 16-20, New Orleans) 2016, Abst 1206 

Chen, J.; Geles, K.; Silva, M.; Waterhouse, R.; Ma, D.; Charati, M.; Sapra, P.; Mccarthy, T.
Evaluate the impact of conjugation on targeting capacity, pharmacokinetics and tissue distribution of antibody drug conjugate, PF-06650808, in tumor bearing mice
22nd Int Symp Radiopharm Sci (ISRS) (May 14-19, Dresden) 2017, Abst P 052 

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PF 06650808

Phase 1

compound inspired by auristatins

https://clinicaltrials.gov/ct2/show/NCT02129205

http://www.pfizer.com/sites/default/files/product-pipeline/8_7_2014_Pipeline_Update.pdf

ALL DATA COMING………

Notch-3 receptor antagonists

Neoplasms
Breast

Pfizer

Cancer

PF-06650808, is currently being examined in a Ph1 clinical trial (Protocol B7501001).

Notch3
Researchers are also exploring the use of Notch3 targeting. “The Notch pathway plays an important role in the growth of several solid tumours, including breast and ovarian cancer and melanoma,” explained Joerger. “In particular, Notch3 alterations such as gene amplification and upregulation are associated with poor patient survival. Research using Notch3 targeting as an innovative approach to treat solid malignancies included 27 patients unselected for Notch3 who received increasing doses of the anti-Notch3 antibody-drug conjugate PF-06650808. Responses were seen in two breast cancer patients (LBA 30). While preliminary, targeting Notch3 may become a new treatment approach in patients with selected solid tumours.”

The anti-Notch3 antibody-drug conjugate PF-06650808 is being developed by Pfizer.

  • 31 Jul 2014 Phase-I clinical trials in Solid tumours (Late-stage disease) in USA (Parenteral)
  • 30 Apr 2014 Preclinical trials in Solid tumours in USA (Parenteral)
  • 30 Apr 2014 Pfizer plans a phase I trial for Solid tumours (late-stage disease, second-line therapy or greater) in USA (NCT02129205)

251st Am Chem Soc (ACS) Natl Meet (March 13-17, San Diego) 2016, Abst MEDI 262

str1 STR2

/////////PF 06650808, PF-06650808, PF-6650808, monoclonal antibody, pfizer, phase 1, Solid tumours , Notch-3 receptor antagonists

C1(C(N(C(C1)=O)CCCCCC(=O)NC([C@H](C)C)C(=O)NC(C(=O)Nc2ccc(cc2)COC(=O)NC(C)(C)C(=O)N[C@@H](C(C)C)C(=O)[N@](C)C(C(CC)C)[C@@H](OC)CC(=O)N3CCC[C@H]3C(OO)C(C)C(=O)N[C@H](c4nccs4)CC)CCCNC(=O)N)=O)SC

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