About us

First-in-class Antiviral ADCs

Thelper AS is a preclinical-stage biotech company located in Oslo, Norway. Thelper has discovered novel viral proteins that are highly expressed within many solid tumor types and their microenvironment, but are absent in normal, healthy tissue. We are actively leveraging our discovery to create highly potent, first-in-class antibody drug conjugates (ADCs) against these tumor-associated viral antigens.

We are a company that aims to TRANSFORM the treatment paradigm for solid tumor patients, and positively IMPACT their life.

Our People

Katja Vetvik, MD, PhD
Katja Vetvik, MD, PhDFounder, Thelper AS
Ernest Aw, PhD
Ernest Aw, PhDResearch Manager and Business Developer
Xuan Jiang, PhD
Xuan Jiang, PhDResearch Scientist
Ida Lindem, MD
Ida Lindem, MDIndustrial PhD student

The Board

Knut Kjær
Knut KjærPartner, FSN Capital and Executive Chairman, Sector Asset Management, Chairman of the Board
Katja Vetvik, MD, PhD
Katja Vetvik, MD, PhDFounder, Thelper AS
Thomas Bengt Andersson, PhD
Thomas Bengt Andersson, PhDSenior Advisor, Oslo Cancer Cluster Incubator, and Partner, Skogsmöllan AB

Scientific Advisory Board

Jürgen Geisler, MD, PhD
Jürgen Geisler, MD, PhDProfessor, University of Oslo, and Senior Consultant, Akershus University Hospital
Stener Kvinnsland, MD, PhD
Stener Kvinnsland, MD, PhDProfessor Emeritus, University of Bergen
Mari Kaarbø, PhD
Mari Kaarbø, PhDGroup leader, Oslo University Hospital
Ian Wilkinson, PhD
Ian Wilkinson, PhDCSO, mAbsolve, and Founder, mAbvice
Torill Sauer, PhD
Torill Sauer, PhDProfessor Emerita in Pathology, University of Oslo and Akershus University Hospital

In Memoriam

Jannicke Mellin-Olsen, MD (1957 - 2025)
Jannicke Mellin-Olsen, MD (1957 - 2025)Anaesthesiologist, Baerum Hospital, and former President, WFSA
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