Rex Pei

Rex Pei Email and Phone Number

Senior Director of Analytical Development & Quality Control at Werewolf Therapeutics @ Werewolf Therapeutics
Rex Pei's Location
Pasadena, California, United States, United States
Rex Pei's Contact Details

Rex Pei personal email

About Rex Pei

Ph.D. in analytical chemistry. Experienced with developing separation-based analytical methods for protein therapeutics characterization. Familiar with ICH regulations on method qualification. Also knowledgeable of the analytical strategy for biotherapeutics process development.

Rex Pei's Current Company Details
Werewolf Therapeutics

Werewolf Therapeutics

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Senior Director of Analytical Development & Quality Control at Werewolf Therapeutics
Rex Pei Work Experience Details
  • Werewolf Therapeutics
    Senior Director Of Analytical Development And Quality Control
    Werewolf Therapeutics Jan 2023 - Present
    Watertown, Massachusetts, Us
  • Werewolf Therapeutics
    Director Analytical Development And Quality Control
    Werewolf Therapeutics Jan 2022 - Jan 2023
    Watertown, Massachusetts, Us
    Werewolf Therapeutics develops innovative conditionally activated cytokine therapeutics with improved PK and safety profiles.
  • Takeda
    Associate Director Of Analytical And Formulation Development & Quality Control
    Takeda Apr 2021 - Jan 2022
    Tokyo, Jp
  • Maverick Therapeutics
    Associate Director
    Maverick Therapeutics Nov 2019 - Apr 2021
    Brisbane, California, Us
    Analytical and formulation developmentQuality control
  • Mabplex International Co., Ltd.
    Associate Director, Analytical And Formulation Development
    Mabplex International Co., Ltd. Mar 2018 - Oct 2019
    Yantai, Shandong, Cn
  • Ambrx
    Sr. Scientist, Analytical And Formulation Development
    Ambrx Aug 2016 - Feb 2018
    San Diego, Ca, Us
    Lead analytical and formulation activities :- Develop, qualify and transfer analytical methods for monoclonal antibody and ADC release and stability testing. - Develop cutting-edge technology for product and method characterization- Design, plan and lead formulation studies for naked antibody, ADC DS and DP- Manage CMO QCA activities including designing stability programs, reviewing sampling plans and reviewing release and stability data- Collaborate with other function groups and devise plans for comparability studies to support process changesManufacturing activities:- Manage CMO DP production including reviewing CMO SOPs and MBRs- Review EM reports and devise CAPA to address EM positive findingsRegulatory activities:- Author related CMC sections for IND, INDa and AR filing-Participate in meetings with regulatory agencies
  • Astellas Pharma Us
    Sr. Scientist
    Astellas Pharma Us Jul 2014 - Aug 2016
    Worked for Agensys a subsidiary of Astellas Led the In-process analytical group to support Agensys mAb and ADC process development.Provided analytical support and strategy for cell culture, purification and conjugation process development and in-process testing.Developed high-throughput analytical assays to accommodate high sample testing demand from multiple pipeline projects.Deep characterization of mAb and ADC to enable molecule optimization and clone screening.
  • Amgen
    Scientist
    Amgen Jan 2010 - Jul 2014
    Thousand Oaks, Ca, Us
    Developing analytical methods to support upstream and downstream processes, product characterization and product release/stability for monoclonal antibodies and fusion proteinsExperienced with following analytical techniques: Major modes of HPLC including SEC, IEX and RP for protein purity determination, impurity characterization, stability tracking and product release CE-based separation techniques such as capillary CE-SDS for purity determination TOF-based methods for intact or partially digested protein characterization LC-MS or CE-MS peptide mapping for protein sequence confirmation and PTM determination HILIC- or CE-based methods for monoclonal antibody glycosylation profilingDetermining molecule critical quality attributes and developing corresponding control strategies.Executing qualification and transfer of analytical methods and authoring technical documentsContributing to CMC drafting and responding to agency questionsTraining and supervising new hires on multiple analytical assaysActing as analytical lead to manage method development strategy and timeline
  • University Of Michigan
    Graduate Student
    University Of Michigan 2004 - 2009
    Ann Arbor, Michigan, Us
    Development of ultra-fast capillary electrophoresis with laser-induced fluorescence detection for enzyme assayDevelopment of a multi-channel lab-on-a-chip with fluorescent CCD imaging for high-throughput drug screening and GPCR-directed drug discoveryInvention of a digital microfluidic interface to ESI-MS for fast acetylcholinesterase inhibitor screening

Rex Pei Skills

Hplc Protein Chemistry Drug Discovery Chemistry Mass Spectrometry Chromatography Lc Ms Analytical Chemistry Biochemistry Cell Culture Biotechnology Purification Peptide Mapping Cmc Strategy Pharmaceutical Process Development

Rex Pei Education Details

  • University Of Michigan
    University Of Michigan
    Analytical Chemistry
  • Peking University
    Peking University
    Chemistry

Frequently Asked Questions about Rex Pei

What company does Rex Pei work for?

Rex Pei works for Werewolf Therapeutics

What is Rex Pei's role at the current company?

Rex Pei's current role is Senior Director of Analytical Development & Quality Control at Werewolf Therapeutics.

What is Rex Pei's email address?

Rex Pei's email address is rp****@****ktx.com

What schools did Rex Pei attend?

Rex Pei attended University Of Michigan, Peking University.

What skills is Rex Pei known for?

Rex Pei has skills like Hplc, Protein Chemistry, Drug Discovery, Chemistry, Mass Spectrometry, Chromatography, Lc Ms, Analytical Chemistry, Biochemistry, Cell Culture, Biotechnology, Purification.

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