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Pattern Pharma

Pattern Pharma is a life sciences company
focused on harnessing the innate immune system
to combat cancer and infectious disease

About us

Our Mission:

To make patients innately better

Pattern Pharma is a Toronto-based life sciences company whose innovative therapeutic harnesses the innate immune system to combat cancer and infectious disease.

For over two decades, Pattern Pharma’s founders and its scientific team have been dedicated to unlocking the power of the innate immune system.

Pattern’s lead product, P2PAR-100, is built on the following foundations:

  • The immune system is our most powerful tool for maintaining good health. The flip side is that immune failure (dysregulation) underlies many cancers and infectious diseases.


  • The immune system is composed of two key pillars: innate immunity and adaptive immunity.


  • The innate immune system is the first to respond to initial infection and can sense threats through hard-wired receptors, namely Pattern Recognition Receptors such as toll-like receptors (TLRs).


  • P2PAR-100 is a TLR4 agonist that safely and effectively activates innate immunity – the result being a differentiated and proven approach to fighting cancer and infectious disease.

Pattern’s initial focus is on HPV-related neoplasias and cancers, which is estimated to cause approximately 5% of cancers worldwide.

With our deep expertise in innate immunity and TLRs more generally, our main focus is on overcoming the limitations and challenges faced by current immuno-oncology therapies.

Pattern Pharma Announces Closing of C$5 Million Financing

P2PAR-100: Our Lead Product

Pattern’s lead product, P2PAR-100, is an  immunotherapeutic which activates innate immune cells to kill cancer cells and safely activate an efficacious innate and adaptive immune response, thereby overcoming the limitations of many traditional therapies.

Pattern’s P2PAR-100 therapeutic is an improved, newly-patented, proprietary pharmaceutical-grade formulation of a safe and effective predecessor product.

P2PAR-100 has high molar activity (a human dose is 3μg), is easy to store and use, and is effective when administered systemically (subcutaneously, intramuscularly, intravenously or intranasally) or intralesionally.

In H2 2022, Pattern expects to submit an Investigational New Drug (IND) Application to the US FDA and commence its first-in-human clinical trial.

P2PAR-100: How it works

P2PAR-100 is a TLR4 agonist that activates key innate immune cells including macrophages, dendritic cells (DCs) and natural killer cells.

In addition, P2PAR-100 also mobilizes the adaptive immune system (via DCs) and creates protective immune memory through a process of in situ vaccination.  This process occurs without any need to previously identify and isolate antigens or genetic material.

P2PAR-100 triggers the transient production of Type I and II interferons and cytokines including chemokines by immune cells (TNFα, IL-12, IFN-β, IFN-γ, IL-1α, IL-1β, GM-CSF, MCP-1, IL-27, etc.).  P2PAR also causes the membrane expression of costimulatory molecules (CD80, CD86, CD40) and MHCI and MHCII molecules on antigen-presenting cells, as well as the production of effector mediators such as nitric oxide and peroxynitrite.

Opportunities: Pipeline in a Product

Pattern has a pipeline of P2PAR-100 opportunities based on strong supporting evidence from the predecessor product of its safety and therapeutic efficacy in a range of indications. In this context, P2PAR-100’s mechanism of action differs from conventional antivirals or other antimicrobials, since it elicits a broad innate immune response.

Pattern’s pipeline indications include other HPV-associated cancers (5% of all cancers), other cancers caused by viruses (10% of cancers), other cancers caused by infections in general (15% of cancers), and cancers more generally.

Our first in-human clinical study will be in Human Papilloma Virus (HPV) related cancers.  It is estimated that 4.5% of all cancers worldwide (630,000 new cancer cases per year) are attributable to HPV: 8.6% in women and 0.8% in men. 

Based on existing clinical and pre-clinical data, there are also combination therapy opportunities with conventional cancer therapies and/or other immunotherapies such as checkpoint inhibitors.


Pattern has collaborated closely with the Massachusetts General Hospital (Harvard), the National Research Council of Canada (NRC), McGill University (Goodman Cancer Centre and TB Centre), and the University of Toronto.

Pattern is open to partnerships that will move its clinical programs forward and enhance the development of our internal pipeline.

Directors and Leadership

Mark de Groot, PhD

Director and CEO

Hans Keirstead, PhD


Nick Glover, PhD


John Abeles, PhD


Andrew Williams, MBA

Chief Financial Officer

Yann Rioux, MSc

Director, Operations

Elizabeth Acosta, PhD

Director, R&D

Key Advisors and Employees

Ravshan Ataullakhanov, MD, PhD

Clinical and Scientific Advisor

Mark Poznansky, MD, PhD

Clinical and Scientific Advisor

Frank Perabo, MD, PhD

Clinical and Scientific Advisor

Dee Mahoney

Commercial Advisor

Donald Klein, PhD

CMC and Regulatory Advisor

Denis Bosc

CMC and Technical Advisor

Pattern Pharma

Toronto, Canada