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SELLAS Life Sciences Group, Inc.

SLS

Health Care

2

exclusion reasons

1 theme

Animal Welfare (2)
SLS Health Care Current as of March 2026

This page is part of our public exclusion list — a transparency tool that shows which companies we screen out and why. It is not investment advice, and it is not an accusation. But it is subject to change as our understanding of the facts evolves.

Animal Exploitation
Since Jan 3, 2022

SELLAS Life Sciences Group, Inc. is a late-stage clinical biopharmaceutical company whose core business involves the development of novel cancer immunotherapies. This drug development process inherently requires animal testing to satisfy regulatory safety and efficacy standards. The company’s SEC filings explicitly note that it and its contract research organizations (CROs) are required to comply with Animal Welfare Act requirements in the conduct of their preclinical studies. Cruelty Free Investors, a watchdog organization, categorizes SELLAS under “Animal Testing” in its database of companies that exploit animals. As a biotechnology firm with no marketed products, its entire valuation and pipeline are contingent on preclinical and clinical research activities that utilize animal models.

Animal Testing & Research
Since Jul 28, 2021

SELLAS Life Sciences Group, Inc. is a clinical-stage biopharmaceutical company whose product development pipeline relies on animal testing as a required component of regulatory compliance. The company's public filings explicitly state that its drug candidates, including treatments for acute myeloid leukemia and other cancers, require the "completion of extensive preclinical laboratory tests and animal studies" in accordance with FDA requirements. This includes long-term preclinical testing, such as animal tests for reproductive toxicity, which are integral to its research and development process. As a pharmaceutical developer, SELLAS outsources, funds, and relies on this animal testing to advance its clinical programs toward human trials.

Research Sources 1 organization
Cruelty Free Investors
External

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Companies appear on our exclusion list based on our investment judgment — not because they've done anything illegal. This is a difference of values and opinion, not an accusation of wrongdoing. Exclusion does not constitute a recommendation against investing in any company, and absence from the list does not constitute a recommendation to invest.

This information is provided for educational and transparency purposes only and should not be relied upon as investment advice. Data is drawn from independent watchdogs, NGOs, government registries, and Ethical Capital's ongoing research — see Research Sources for the full list.

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