Scientists from Poltreg S.A. report first successful manufacturing of CARTREGS for the treatment of neuroimmune conditions.

The time lapse movie (originally 13-hours-lating) shows in vitro model of the therapy with CARTREGS manufactured in Poltreg’s laboratory. The big cell in the middle express cloned glia antigens. It is actively recognised by the manufactured CARTREGS (small green cells) expressing CAR receptors towards the antigens. The CARTREGS attach to the surface of glia cell and actively protect it against autoimmune attack.

Poltreg S.A. develops CARTREG cell therapy product in the cooperation with AZTherapies from Boston, USA. The therapy with the cells will be tried in clinical trials in neuroimmune conditions such as amyotrophic lateral sclerosis (ALS) and multiple sclerosis (MS). CARTREGS are engineered T regulatory cells expressing chimeric receptor cloned into the cells. Poltreg’s product contains receptors against glia. This design allows CARTREGS for the recognition of glia of the brain and spinal cord, where they generate functional barrier and protect the central nervous system against autoimmune attack. This way the disease can be alleviated or even stopped.

More details about the technology will be presented at the conference ‘Therapeutic Tolerance Lessons Learned’ organized by the University Newcastle in Newcastle upon Tyne, UK, 28th June -1st July 2022 (

Movie by Magdalena Piotrowska, Mateusz Gliwiński, Aurelia Schweda and Dorota Iwaszkiewicz-Grześ.

Autumn 2021 – we shall be present

In autumn 2021 Poltreg will present the results of clinical trials in several important scientific meetings:

  1. October 25-26 – 3 Health of Poles Congress


  1. November 8-10 – VIII 8th EUROBIOTECH Congress, Kraków


  1. November 25-26 – XV Congrés de la Societat Catalana d’Immunologia, Barcelona (online)


September 2021 – VI Europejski Kongres Immunologii

On 01 – 04 September 2021 prof. Piotr Trzonkowski took part in the VI European Congress of Immunology – Belgrade / Istanbul (online event). The professor made a presentation „From bench to bedside – Clinical therapy with T regulatory cells”.


September 2021 – Patent granted by USPTO

In September, the United States Patent and Technology Office announced that on July 27th 2021, the founders of PolTREG S.A. were granted of the patent entitled “In vitro method of expansion of CD4 + FoxP3 + regulatory T cells” (US Patent No. 11,072,779). The company has an exclusive patent license.

Photo shows prof. Natalia Marek-Trzonkowska with the patent.



July 2021 – PolTREG S.A. submitted the Prospectus to the Polish Financial Supervision Authority

PolTREG S.A. is currently at various stages of clinical research and development (therapy of type 1 diabetes in children, and multiple sclerosis) using T-regulatory cells (TREGS). The company’s strategy assumes the development of a platform for therapies based on the use of TREGS in the treatment of autoimmune diseases and achieving the position of one of the leaders of such therapies in the world.

The Company submitted at the end of June, to the Polish Financial Supervision Commission (in PL: KNF) prospectus in connection with the intention to carry out an initial public offering (IPO), and admission and introduction of shares to trading on the regulated market of the Warsaw Stock Exchange in Warsaw S.A. (in PL: GPW).

PolTREG plans to debut on the stock exchange in the fourth quarter of 2021. The funds that the Company intends to obtain from the public offering (IPO) shall be used to finance the current research and development projects related to the next stages of clinical trials on the treatment of type 1 diabetes in children and the treatment of multiple sclerosis.


Press publications:

March 2021

Doctor Mateusz Gliwiński is awarded with  GOLDEN OTIS 2021 in the scientific debut category for his PhD work in which the dominant role of proinsulin in the development of type 1 diabetes has been proved. Doctor Gliwiński described also the idea of new cellular therapy based on this antigen in type 1 diabetes. Doctor Dorota Iwaszkiewicz-Grześ and Prof. Piotr Trzonkowski were the tutors. The work was supported by the grants from National Centre for Research and Development: LIDER/160/L-6/14/NCBR/2015, STRATEGMED1/233368/1/NCBR/2014 to Medical Univ. Gdańsk and  POIR.01.01.01-00-0769/15-03 to Poltreg SA. The award ceremony will take place in April 2021.

The Trust Awards ZŁOTY OTIS have been given annually for exceptional achievements in medicine by Świat Lekarza journal. The awardees are chosen by the chapter of eminent scientists, medics, members of patients’ organizations and pharmaceutical industry. See more:

January 2021

Prestigeous journal Biodrugs published report from our phase 1 study testing T regulatory cells in multiple sclerosis:

Kamil Chwojnicki, Dorota Iwaszkiewicz-Grześ, Anna Jankowska, Maciej Zieliński, Paweł Łowiec, Mateusz Gliwiński, Małgorzata Grzywińska, Kamil Kowalczyk, Aleksandra Konarzewska, Paulina Glasner, Justyna Sakowska, Julia Kulczycka, Anna Jaźwińska-Curyłło, Marlena Kubach, Bartosz Karaszewski, Walenty Nyka, Edyta Szurowska, Piotr Trzonkowski. Administration of CD4 + CD25 high CD127 – FoxP3 + Regulatory T Cells for Relapsing-Remitting Multiple Sclerosis: A Phase 1 Study. BioDrugs 2021 Jan;35(1):47-60. doi: 10.1007/s40259-020-00462-7.

More: ;

November 2020

Czech Liaison Office for Research, Development and Innovation (CZELO) distinguished our project as the example of good practice realized with the support from Horizon 2020 by the company from Visegrad countries (see page 58 of the brochure)


Download PDF

October 2020

The Ministry of Regional Development just released results of the competition 2.1 PO IR (Support for R@D center). Poltreg S.A. has been scored the highest 28 points and received grant = 10 597 978,30 PLN (≈2.4mln Euro) for the infrastructure.



September 2020

Poltreg S.A. among 5 Top Healthcare Startups Tackling Type 1 Diabetes. Portal startus-insights analyzed 72 healthcare startups tackling Type 1 Diabetes (T1D). Our company was scored among Top 5 developing medical solutions to watch out for.


August 2020

Scientists from the Medical University of Gdańsk, Poltreg S.A. and Technische Universität Dresden published the description of new generation of medicinal product containing antigen-specific T regulatory cells. The work: „Antigen-reactive regulatory T cells can be expanded in vitro with monocytes and anti-CD28 and anti-CD154 antibodies” can be read in the Cytotherapy – official journal of the International Society of Cell and Gene Therapy. The product is intended for the treatment of autoimmune diseases. The paper summarizes the research and patent claimed under the same title last year.



June 2020

During 80th Scientific Sessions of the American Diabetes Association (12-16.06.2020) the scientists from STRATEGMED TREGS consortium and PolTREG company presented for the first time presumptive results of the phase II trial with T regulatory cells. From the tested approaches, the combined treatment with T regulatory cells and antiCD20 antibody proved to be the most promising. The patients treated with this combined scheme were in the clinical remission almost throughout entire 2-year-lasting follow-up, being administered with less than 0.5 units of insulin per kg body weight daily. At the same time, they were characterized by the best metabolic control with glycosylated haemoglobin HbA1c below 6.5%. The patients treated with this combined regimen achieved the longest insulin-independence which lasted as long as 18 months post-treatment.


February 2020

Why does insulin trigger diabetes and what is the role of T regulatory cells?


Poltreg S.A. took a part in the resrearch just published in BMJ Open Diabetes Research and & Care. The work is a collaborative study of the medical universities from Gdańsk, Łódź, Katowice, University of Gdańsk, Regional Blood Bank and Poltreg S.A. in which the scientists proved that insulin is not only the hormone but also a dominant autoantigen involved in the development of type 1 diabetes

The links between insulin and the development of type 1 diabetes are known but the current work explains how insulin antigens trigger the progression of disease. Namely, the fragments of proinsulin sensitize and activate the immune system, which starts pathologic response against pancreatic islets secreting the hormone.

Why does not everybody develop the diabetes? It is because antigen-specific T regulatory cells,  which are able to stop the activation of the immune system in the majority of people. The number of these cells is extremely low (below 0,01% in the peripheral blood) and only the recent laboratory tools used in the presented work were able to detect them.

The results of the work allowed the scientists from Poltreg S.A. and Medical University of Gdańsk to create the next generation of cellular drug which will be able to stop the activity of the immune system against insulin fragments and pancreatic islets.

Full text of the paper is available at:

The work was supported by the grants LIDER/160/L-6/14/NCBR/2015, STRATEGMED1/233368/1/NCBR/2014 and POIR.01.01.01-00-0769/15-03 from National Centre for Research and Development.


January 2020

Final report from the study on safety of Tregs in multiple sclerosis

Medical University of Gdańsk together with Poltreg’s scientists submitted final report from the study: „Cell therapy of multiple sclerosis with ex vivo expanded CD4+CD25+CD127- T regulatory cells” to the Office for Registration of Medicinal Products, Medical Devices and Biocidal Products. The results wil be published soon in the specialist journal.


September 2019

Poltreg S.A. attended the meeting ‘Business in the Genes’ at the Warsaw Stock Exchange. We presented the progress of the company and reported accomplishment of phase II study in type 1 diabetes and phase I in multiple sclerosis. We also showed our current preparatory work on pivotal phase III study  in type 1 diabetes in Eurpe and USA. We have also informed about hospital exemption procedure, which allows us to offer the therapy in the University Hospital in Gdańsk. The first patients were administered with the preparation already. Finally, we discussed current financial needs of the company and the progress of the fundraising to date.


July 2019

Prof. Trzonkowski presented the lecture ‘Treatment of autoimmune diseases with T regulatory cells in humans – promises and hurdles’ during the workshop ‘Discovery to clinical applications of regulatory T cells in autoimmunity and transplantation’ organized by the British Society of Immunology.


June 2019

The patient’s trust award ‘Złoty Otis’ for her achievements in endocrinology and diabetology to Prof. Myśliwiec


May 2019

Prof. Myśliwiec elected again to be the member of the Board of the Polish Society of Diabetology for the term 2019-2023.

May 2019

The Award of  the Polish Society of Diabetology to Prof. Myśliwiec for Her spectacular achievements in the clinical and experimental science in diabetology. The ceremony took place during the the XX Congress of the Polish Society of Diabetology in Lublin, in which prof. Myśliwiec gave the inaugural Jakub Węgierka’s lecture: ‘Running for success in diabetology’.


May 2019

Scientists from Poltreg presented their academic and commercial experience with the Tregs at the TREG SUMMIT in Boston.


February 2019

Poltreg presented its current strategy at LSX World Congress in London. The Congress is a high-calibre, senior executive, conference, exhibition and partnering event providing the education, strategies, solutions and contacts that life science executives need to enable more effective investment, planning and strategic growth within their businesses.


September 2018

Prof. Piotr Trzonkowski gave a lecture on TREG method during European Congress of Immunology in Amsterdam. The congress is the biggest and the most important European event on immunology taking place every three years in different European cities.


June 2018

PolTREG has been awarded 2 500 000 Euro grant in Horizon2020 in the healthcare biotechnology sector.(project 830559 – TREG: TREG – innovative cell therapy targeting Diabetes Type 1).  We are the only Polish SME company that received support in this instrument in the area of healthcare. The money will be spent on the preparations to phase III clinical trial in type 1 diabetes.


April 2018

Report on adverse effects from clinical trials on type 1 diabetes and multiple sclerosis confirmed good safety profile of the treatment.


February 2018

Scientists from Poltreg are co-authors of the minimum information model on Treg cell therapy (MiTREG). The paper describing MiTREG brought together over 50 scientists from all over the world.


January 2018

Last patient recruited into phase I trial on multiple sclerosis in STRATEGMED TREGS programme. Full results of the study will be available in second quarter of 2019.


December 2017

Inventor of TREG method Prof. Piotr Trzonkowski has received the Foundation for Polish Science Prize 2017 in the life and earth sciences for studies on regulatory T cells and their pioneering use in cell therapy of human diseases. This is the most important scientific prize in Poland.


September 2017

Last patient recruited into phase II trial on type 1 diabetes in STRATEGMED TREGS programme. Full results of the study will be available in third quarter of 2019.


June 2017

Scientists from Poltreg took a part in the final meeting of the “Action to Focus and Accelerate Cell-based Tolerance-inducing Therapies (AFACTT). This is Europe’s Biggest Research Network on cell-based tolerance-inducing therapies that brings together around 100 scientists from 20 European universities.


Mai 2017

Scientists from Poltreg published report with new data on laboratory technique increasing stability and quality of TREG preparation used in the treatment. The method is a subject of new patent application.


December 2016

Scientists from Poltreg published report describing long-term effects of the therapy. The report proves that the patients treated with TREG cells could produce insulin more than 2 years after administration of the preparation.


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