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John Kumer Email & Phone Number

Director of Process Development, Head of Analytical Sciences, Bioassay, and QC at Aptevo Therapeutics Inc
Location: Seattle, Washington, United States 5 work roles
1 work email found @comcast.net LinkedIn matched
✓ Verified August 2026 3 data sources Profile completeness 71%

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Work email j****@comcast.net
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Current company
Role
Director of Process Development, Head of Analytical Sciences, Bioassay, and QC
Location
Seattle, Washington, United States

Who is John Kumer? Overview

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Quick answer

John Kumer is listed as Director of Process Development, Head of Analytical Sciences, Bioassay, and QC at Aptevo Therapeutics Inc, based in Seattle, Washington, United States. AeroLeads shows a work email signal at comcast.net and a matched LinkedIn profile for John Kumer.

John Kumer previously worked as Principal Scientist, Head of Process Development at Aptevo Therapeutics Inc and Senior Scientist, Downstream Process Development at Aptevo Therapeutics Inc.

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Email format at Aptevo Therapeutics Inc

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{first}{last}@comcast.net
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Profile bio

About John Kumer

John Kumer is a Director of Process Development, Head of Analytical Sciences, Bioassay, and QC at Aptevo Therapeutics Inc.

Current workplace

John Kumer's current company

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Aptevo Therapeutics Inc
Aptevo Therapeutics Inc
Director of Process Development, Head of Analytical Sciences, Bioassay, and QC
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5 roles

John Kumer work experience

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Director Of Process Development, Head Of Analytical Sciences, Bioassay, And Qc

Current

Seattle, Wa, Us

Lead CMC activities supporting Aptevo’s clinical development of ADAPTIR™ (bispecific antibodies) therapeutic candidates for hematologic and solid tumor indications. Guide development of phase appropriate manufacturing processes, analytical methods, and potency assays for pre-clinical therapeutic candidates. Transfer these processes and methodologies to CDMO to generate and disposition cGMP Drug Substance and Drug Product to support development of Aptevo’s new clinical programs.

Mar 2022 - Present

Principal Scientist, Head Of Process Development

Seattle, Wa, Us

Currently lead process development team's effort to develop cell culture and purification processes from clone selection through clinical manufacturing for First in Human bispecific antibody-like therapeutics (ADAPTIR™ and ADAPTIR-FLEX™).-Serve as PD lead for multiple projects involving cross-disciplinary team coordination, aid in forecasting development plans, author CMC sections of IND/IMPD. Facilitate technology transfer activities of production process to CMO, author reports, lead Process Development meetings and approve batch records. Serve as person-in-plant during clinical manufacturing.-Manage four direct reports.-Develop and scale processes to produce NHP PK and Tox material.

May 2019 - Mar 2022

Senior Scientist, Downstream Process Development

Seattle, Wa, Us

Contribute to purification process development projects from clone selection through clinical manufacturing for First in Human bispecific antibody-like therapeutics (ADAPTIR TM).-Serve as downstream CMC lead for multiple projects involving cross-disciplinary team coordination, aid in forecasting development plans, author CMC sections of IND/IMPD. Lead downstream technology transfer activities of production process to CMO, authoring reports, leading downstream meetings and approving batch records. Serve as person-in-plant during clinical manufacturing.-Design and execute scale down process model qualifications-Design and execute IND/IMPD enabling viral validation including CRO evaluation, tech transfer of scale down model, approval of CRO chromatography purification batch records, serve as liaison at CRO during viral spiking execution, and perform final review of CRO’s viral validation.-Manage one direct report.-Develop and scale purification processes using AKTA Pure150 and AKTA Pilot to produce NHP PK and Tox material.

Jun 2016 - Apr 2019

Senior Scientist

Sony Life Electronics
Sep 2013 - Jun 2016
FAQ

Frequently asked questions about John Kumer

Quick answers generated from the profile data available on this page.

What company does John Kumer work for?

John Kumer works for Aptevo Therapeutics Inc.

What is John Kumer's role at Aptevo Therapeutics Inc?

John Kumer is listed as Director of Process Development, Head of Analytical Sciences, Bioassay, and QC at Aptevo Therapeutics Inc.

What is John Kumer's email address?

AeroLeads has found 1 work email signal at @comcast.net for John Kumer at Aptevo Therapeutics Inc.

Where is John Kumer based?

John Kumer is based in Seattle, Washington, United States while working with Aptevo Therapeutics Inc.

What companies has John Kumer worked for?

John Kumer has worked for Aptevo Therapeutics Inc, Sony Life Electronics, and Trubion Pharmaceuticals.

How can I contact John Kumer?

You can use AeroLeads to view verified contact signals for John Kumer at Aptevo Therapeutics Inc, including work email, phone, and LinkedIn data when available.

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