Developing next-generation macromolecule therapeutics

Sapreme’s mission is to develop next-generation macromolecule therapeutics by circumventing endosomal entrapment, thereby enhancing target engagement.
The company’s proprietary endosomal escape platform improves the therapeutic window by enabling access to intracellular targets with minimal toxicity.
This approach is applied for Sapreme’s internal pipeline and is available for partnering, without limitation to biologic modality or indication.

Science

The Challenge: Endolysosomal trapping of macromolecules

One of the greatest challenges for efficacy of macromolecule therapeutics that act on an intracellular level, is delivery into key cells. Macromolecule therapeutics nowadays rely on receptor-mediated endocytosis into the endosomal compartment. The endo-lysosomal membranes, however, prohibit efficient cytoplasmic access of such foreign substances. The therapeutic efficacy of such drugs is therefore highly dependent on endo-lysosomal vesicles degradation.
Cytosolic delivery of macromolecule therapeutics requires incredibly challenging technical optimizations or specialized drug delivery platforms. For most oligonucleotide-based therapeutics, delivery remains an unsolved problem and exposes a significant need for the development of novel delivery mechanisms.

Our Approach: ENDOSCAPE®

At Sapreme, we are developing improved macromolecule delivery mechanisms by circumventing endosomal entrapment. Our ENDOSCAPE® platform is based on compounds which can release trapped cargo from the endo-lysosomal membranes, improving the therapeutic window and enabling access to intracellular targets with minimal toxicity.
By binding our technology to antibody-conjugated toxins and oligonucleotides, our goal is to enhance target engagement and improve therapeutic efficacy without limitation to biologic modality or indication.

News & Events

Press Releases:

Sapreme Appoints Miriam Bujny as Chief Development Officer

October 27, 2020

UTRECHT, The Netherlands Sapreme, a biotechnology company focused on improving the delivery and efficacy of macromolecule therapeutics, today announced the appointment of Miriam Bujny, Ph.D., as Chief Development Officer. With over ten years of experience in drug discovery, translational science and early stage clinical development, Dr. Bujny will apply her expertise in RNA and antibody therapeutic development to further advance Sapreme’s proprietary endosomal escape platform through preclinical development.  Dr. Bujny will be based at Sapreme’s headquarters in Utrecht, The Netherlands, and will report to the CEO.

“Throughout my career, I have seen the limitations of developing promising therapeutic candidates due to the lack of delivery into key cells,” commented Dr. Bujny, Chief Development Officer of Sapreme. “Sapreme is developing a promising platform, that has the ability to improve the delivery and thereby the efficacy for a broad range of macromolecules such as antibody-conjugated toxins and antisense oligonucleotides. I look forward to applying my experience and knowledge toward Sapreme’s mission of developing next-generation macromolecule therapeutics.”

Commenting on the appointment, Guy Hermans, Chief Executive Officer of Sapreme said, “After recently announcing positive preclinical data on our proprietary endosomal escape platform, we are now concentrated on building out our team to accelerate the development of our compounds and identifying the full potential of our platform in the different therapeutic areas. Miriam’s experience in drug discovery and development as well as her demonstrated ability to strategically and operationally lead projects toward the next stage of development will be a valuable asset to us. We welcome Miriam to the team and look forward to working with her.”

Over the last ten years, Dr. Bujny has held leadership positions in various drug discovery and clinical development roles. Prior to joining Sapreme, Miriam worked at ProQR Therapeutics, a Dutch biotech company developing RNA therapies for severe genetic disorders, as Senior Director R&D. During her time at ProQR, she led the early development activities for a novel RNA therapy for Fuchs’ endothelial corneal dystrophy, a common inherited eye disease, from lead candidate optimization toward clinical development preparations. She also headed the Translational Science department and oversaw biomarker and assay development activities across a variety of RNA therapy programs for rare diseases. From 2012 to 2016, she worked in various roles for Janssen, part of the Pharmaceutical Companies of Johnson & Johnson, where she established and headed the predictive biomarker department at the Janssen Prevention Center. Before that, she worked on anti-viral antibody therapy development and contributed to early clinical development as preclinical in vitro lead. Prior to this, Miriam worked at Crucell, before its acquisition by Johnson & Johnson, in the Innovation & Discovery Labs on antibody discovery and engineering.

Dr. Bujny holds a Ph.D. in biochemistry from the University of Bristol with a specialization in endosomal transport. She completed postdoctoral training in the lab of Dr. Xiaowei Zhuang at Harvard University, specializing in developing imaging methods in order to apply them to biomedical questions.

Sapreme Unveils its Proprietary Endosomal Escape Platform in Presentations at 16th Annual Meeting of Oligonucleotide Therapeutics Society

September 28, 2020 05:00 AM Eastern Daylight Time

UTRECHT, The Netherlands–(BUSINESS WIRE)–Sapreme, a biotechnology company focused on improving the delivery and efficacy of macromolecule therapeutics, today announced positive preclinical data on its proprietary endosomal escape platform in two presentations at the 16th Annual Meeting of the Oligonucleotide Therapeutics Society (OTS), held virtually from September 27th to 30th, 2020.

Sapreme is developing macromolecule delivery methods based on compounds that release therapeutic cargo from the endo-lysosome, improving access to intracellular targets and enhancing the therapeutic window for these therapeutics. Current macromolecular biologics rely on receptor-mediated endocytic uptake into the endosome and inefficient passive release from these vesicles into the cell to achieve therapeutic efficacy. The company’s presentations demonstrate that Sapreme’s SPT001 compound improves intracellular release of targeted antisense oligonucleotides (ASOs) and thereby also their therapeutic efficacy. In addition to ASOs, SPT001 has also been demonstrated to enhance delivery of other targeted payloads such as antibody-conjugated toxins.

“The data presented today underscore the broad potential of our platform to overcome endosomal entrapment and improve the therapeutic window of macromolecule therapeutics,” stated Guy Hermans, Ph.D., Chief Executive Officer of Sapreme. “We are encouraged to see that conjugating SPT001 to liver or tumor targeted ASOs leads to significantly improved silencing, with positive implications for development of metabolic syndrome and oncology targeting drug developments. These results support the further development of SPT001 as the delivery mechanism of choice for future intracellularly active macromolecular drug candidates.”

The presentations are available on demand at the 16th Annual Meeting of the OTS conference website through this link.

The full text press release is available here.

Events:

September 28th, Utrecht

Guy Hermans (CEO) and Ruben Postel (CSO) will be presenting “Efficient, targeted cytoplasmic delivery of oligonucleotides via Sapreme’s endosomal escape enhancers” and “SPT001 enhanced mAb-oligo conjugates: efficient delivery beyond the liver”, respectively, at the 16th Annual Meeting of the Oligonucleotide Therapeutics Society, on Monday, September 28th at 2:15 p.m. EDT.

These presentations will be available on demand through the conference website at this link.

About Sapreme:
Sapreme’s mission is to develop next-generation macromolecule therapeutics by circumventing endosomal entrapment, thereby enhancing target engagement. The company’s proprietary endosomal escape platform improves the therapeutic window by enabling access to intracellular targets with minimal toxicity. This approach is applied for Sapreme’s internal pipeline and is available for partnering, without limitation to biologic modality or indication.

Contacts:
Guy Hermans, CEO
+31 30 760 09 76
hermans@sapreme-technologies.com

For Media Inquiries, please contact:
Trophic Communications
Eva Mulder or Valeria Fisher
+49 89 238 877 30
sapreme@trophic.eu

Careers

If you are a talented individual interested in contributing to our mission, please send your resume to 

info@sapreme-technologies.com

Contact

Telephone

+31 30 760 09 76

Address

LSI, Room 2.09
Yalelaan 62
3584 CM Utrecht
The Netherlands