Scott Platshon

Chief Business Officer at Zymeworks

📍 Menlo Park, California, United States🔄 Updated September 2026💼 13 investments📅 11 years investing🗓 Last invested May 2024𝕏 @upgrade_to_unlock
VC🌍 United States
13
Total investments
1
Early stage
3
Mid stage
0
Late stage
11y
Years active

Portfolio

9 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Observer
May 2024
BridgeBio Oncology Therapeutics is a clinical-stage biopharmaceutical company advancing a next generation pipeline of novel small molecule therapeutics targeting RAS and PI3K malignancies. Initially formed as a subsidiary of BridgeBio, BridgeBio Oncology Therapeutics completed a $200M private financing with external investors in 2024 with the goal of improving outcomes for patients with cancers driven by the two most prevalent oncogenes in human tumors.
Board Member
Oct 2023
Terremoto Biosciences is a covalent drug discovery and development engine creating highly targeted, small molecule medicines with unmatched selectivity, potency and efficacy. The company leverages the power of lysine-based covalency across the disease spectrum to develop both best-in-class therapies against known drug targets and first-in-class medicines against the previously undruggable. Many of Terremoto’s founders helped establish this emergent area of science, with the intent to broaden the number of tractable targets and deliver medicines with superior therapeutic benefit. Terremoto is supported by leading investors OrbiMed and Third Rock Ventures. More information is available at www.terremotobio.com.
Board Observer
Apr 2021
Janux Therapeutics is an innovative biopharmaceutical company developing next-generation therapeutics based on its proprietary Tumor Activated T Cell Engager (TRACTr) platform technology to better treat patients suffering from cancer. Janux’s initial focus is on developing a novel class of T cell engagers (TCEs), and its lead product candidates are designed to target clinically validated drug targets. While TCE therapeutics have displayed potent anti-tumor activity in hematological cancers, developing TCEs to treat solid tumors have faced challenges due to the limitations of prior TCE technologies, namely (i) overactivation of the immune system leading to cytokine release syndrome, (ii) on-target, healthy tissue toxicities, and (iii) poor pharmacokinetics leading to short half-life. Janux is using its TRACTr platform technology to engineer product candidates designed to overcome these limitations. Janux is developing a broad pipeline with lead programs targeting prostate-specific membrane antigen (PSMA), epidermal growth factor receptor (EGFR), and trophoblast cell surface antigen 2 (TROP2), with all of its programs currently in the IND-enabling or discovery stage.
Board Member
Sep 2020
We are a clinical-stage biopharmaceutical company leveraging our proprietary ImmunoTAC technology platform to develop systemically delivered, tissue targeted therapeutics for the treatment of cancer, chronic viral infections, and other serious diseases. Our platform enables us to strategically pair linker-payloads that modulate key disease-modifying pathways with monoclonal antibodies directed to specific disease sites. Initially, we are creating a new class of targeted immuno-oncology agents that direct a myeloid cell activator to the tumor microenvironment in solid tumors to promote cancer cell killing.
Board Observer
Aug 2019
Kumquat Biosciences’ vision is to develop innovative therapies to bring about sustainable and life-changing benefits to cancer patients. We are committed to translate breakthrough science to innovative medicines by combining internal expertise in drug discovery and development, with external collaboration with academics. Kumquat brings together an accomplished management team with proven track record in discovering and developing innovative oncology medicines. The founding team has previously co-founded Intellikine, Araxes/Wellspring Biosciences and Kura Oncology. Kumquat Biosciences currently focuses on multiple first-in-class programs including targeted therapy as well as immunotherapy. Kumquat is funded by leading biotech venture investors as well as a pharmaceutical corporate venture.
Board Observer
Jun 2018
PellePharm is a biotechnology company committed to targeting rare dermatologic diseases, including Gorlin Syndrome and High-Frequency Basal Cell Carcinomas (BCCs), at their source. Founded by world leaders in hedgehog signaling, PellePharm is working to improve the quality of life for those suffering from regular, debilitating surgeries by providing an easy-to-use topical solution that eliminates this need and provides an overall better quality of life. The standard of care for these diseases is surgery. In particular, people with severe Gorlin Syndrome may have as many as 30 surgeries per year, which can be repetitive and scarring. PellePharm’s patidegib gel has shown early promise in a phase 2 clinical study for the mitigation of the BCC tumors in Gorlin Syndrome by blocking the disease at its source within the hedgehog signaling pathway. Because oral formulations for this treatment typically have serious systemic side effects which cause many patients to discontinue treatment, patidegib is formulated as a topical gel to reduce its side effect profile due to its minimal systemic exposure. PellePharm is located in San Francisco, California. For more information about PellePharm, please visit us at www.pellepharm.com.
Board Observer
Jan 2018
Ashvattha Therapeutics is developing a new class of drugs that identify and treat diseased cells with unprecedented precision. Our proprietary hydroxyl dendrimer (HD) platform, exclusively licensed from Johns Hopkins University, allows for the creation of hydroxyl dendrimer therapeutics (HDTs), which link known small molecule drugs to HDs for selective delivery with sustained effect in diseased tissues. We believe this approach to precision medicine has the potential to change the standard of care across neurology, ophthalmology, hyperinflammatory diseases and neuro-oncology.
Investor
Oct 2015
EcoR1 Capital, LLC is a biotech focused investment advisory firm.
Experience · 15 entries
All (15)
Investments (13)
Board (12)
2024
Board Observer
May 2024
BridgeBio Oncology Therapeutics is a clinical-stage biopharmaceutical company advancing a next generation pipeline of novel small molecule therapeutics targeting RAS and PI3K malignancies. Initially formed as a subsidiary of BridgeBio, BridgeBio Oncology Therapeutics completed a $200M private financing with external investors in 2024 with the goal of improving outcomes for patients with cancers driven by the two most prevalent oncogenes in human tumors.
Board Member
Feb 2024
Zymeworks (NASDAQ:ZYME) is a clinical-stage biopharmaceutical company dedicated to the development of next-generation multifunctional biotherapeutics. Zymeworks’ suite of therapeutic platforms and its fully integrated drug development engine enable precise engineering of highly differentiated product candidates. Zymeworks’ lead clinical candidate, zanidatamab, is a novel Azymetric™ HER2-targeted bispecific antibody currently being evaluated in multiple Phase 1, Phase 2, and pivotal clinical trials globally as a targeted treatment option for patients with solid tumors that express HER2. Zymeworks’ second product candidate, Zanidatamab Zovodotin (ZW49), is a bispecific antibody-drug conjugate currently in Phase 1 clinical development and combines the unique design and antibody framework of zanidatamab with Zymeworks’ proprietary ZymeLink™ linker-cytotoxin. Zymeworks is also advancing a deep preclinical pipeline in oncology (including immuno-oncology agents) and other therapeutic areas. In addition, its therapeutic platforms are being leveraged through strategic partnerships with nine biopharmaceutical companies.
2023
Board Member
Oct 2023
Terremoto Biosciences is a covalent drug discovery and development engine creating highly targeted, small molecule medicines with unmatched selectivity, potency and efficacy. The company leverages the power of lysine-based covalency across the disease spectrum to develop both best-in-class therapies against known drug targets and first-in-class medicines against the previously undruggable. Many of Terremoto’s founders helped establish this emergent area of science, with the intent to broaden the number of tractable targets and deliver medicines with superior therapeutic benefit. Terremoto is supported by leading investors OrbiMed and Third Rock Ventures. More information is available at www.terremotobio.com.
2021
Board Observer
Apr 2021
Janux Therapeutics is an innovative biopharmaceutical company developing next-generation therapeutics based on its proprietary Tumor Activated T Cell Engager (TRACTr) platform technology to better treat patients suffering from cancer. Janux’s initial focus is on developing a novel class of T cell engagers (TCEs), and its lead product candidates are designed to target clinically validated drug targets. While TCE therapeutics have displayed potent anti-tumor activity in hematological cancers, developing TCEs to treat solid tumors have faced challenges due to the limitations of prior TCE technologies, namely (i) overactivation of the immune system leading to cytokine release syndrome, (ii) on-target, healthy tissue toxicities, and (iii) poor pharmacokinetics leading to short half-life. Janux is using its TRACTr platform technology to engineer product candidates designed to overcome these limitations. Janux is developing a broad pipeline with lead programs targeting prostate-specific membrane antigen (PSMA), epidermal growth factor receptor (EGFR), and trophoblast cell surface antigen 2 (TROP2), with all of its programs currently in the IND-enabling or discovery stage.
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Investment activity
2015–2024 · 13 investments
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