Synopsis:
Nimbus Therapeutics CEO Abbas Kazimi walks Alok Tayi through the company’s evolving pipeline and playbook for choosing the right risks in a noisy biotech environment. From Werner helicase for MSI-high cancers to a highly selective SIK2 program and GLP-1–adjacent strategies focused on body composition, Abbas details how Nimbus balances rigor, speed, and capital efficiency.
He shares candid lessons from pausing and later resurrecting AMPK beta in partnership with Eli Lilly, the decision to remain modality-agnostic but small-molecule-centric, and the importance of knowing when not to chase the latest fad. Throughout, Abbas returns to a consistent theme: success at Nimbus comes from disciplined target selection, deep collaboration, and a culture that empowers teams to make hard calls in service of patients rather than headlines.
Biography:
Abbas Kazimi is the Chief Executive Officer of Nimbus Therapeutics. Previously, he served as Chief Business Officer, leading the company’s strategic and corporate development efforts while overseeing business operations. Since joining Nimbus in 2014, he has helped raise over $630 million in equity financing and led transactions totaling more than $8 billion.
Notably, Mr. Kazimi spearheaded the $6 billion sale of Nimbus’s TYK2 program to Takeda, the $1.2 billion sale of its NASH (ACC) program to Gilead, and multiple licensing deals exceeding $1.5 billion with partners such as Genentech, Celgene/Roche, and Eli Lilly. Under his leadership, Nimbus has advanced four programs into the clinic, returned over $4 billion to investors, and continues to expand its computational drug discovery and clinical development capabilities.
In 2025, Mr. Kazimi joined the board of Unnatural Products (UNP), a biotech company pioneering orally delivered macrocyclic peptides to tackle previously undruggable targets. He also serves on the Editorial Advisory Board for In Vivo magazine, a leading publication offering strategic insights and analysis of the pharmaceutical, biotechnology, medtech, and consumer health industries. Along with his family, he established the Kazimi Family Endowment for Data Science in Oncology at MD Anderson Cancer Center. This endowment reflects their personal commitment to philanthropy and their vision for revolutionizing cancer treatment through data-driven innovation.
At the core of Mr. Kazimi’s leadership is a deep sense of purpose—one that seeks to change the trajectory of medical diagnoses where options are limited. The ability to give patients, prescribers, and families a new outlook on life is a powerful responsibility—and one he knows the biopharmaceutical sector has the ability to fulfill.
Before Nimbus, he was at Extera Partners, LLC (formerly PureTech Development, LLC), where he provided strategic advisory, supported fundraising, and executed numerous business development transactions. Earlier in his career, he was with JSB-Partners, LP, a specialized investment banking and advisory firm serving biotech and pharmaceutical companies.
Mr. Kazimi holds a B.A. from the University of Texas at Austin and an M.S. from Harvard University.
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Synopsis:
Nimbus Therapeutics CEO Abbas Kazimi walks Alok Tayi through the company’s evolving pipeline and playbook for choosing the right risks in a noisy biotech environment. From Werner helicase for MSI-high cancers to a highly selective SIK2 program and GLP-1–adjacent strategies focused on body composition, Abbas details how Nimbus balances rigor, speed, and capital efficiency.
He shares candid lessons from pausing and later resurrecting AMPK beta in partnership with Eli Lilly, the decision to remain modality-agnostic but small-molecule-centric, and the importance of knowing when not to chase the latest fad. Throughout, Abbas returns to a consistent theme: success at Nimbus comes from disciplined target selection, deep collaboration, and a culture that empowers teams to make hard calls in service of patients rather than headlines.
Biography:
Abbas Kazimi is the Chief Executive Officer of Nimbus Therapeutics. Previously, he served as Chief Business Officer, leading the company’s strategic and corporate development efforts while overseeing business operations. Since joining Nimbus in 2014, he has helped raise over $630 million in equity financing and led transactions totaling more than $8 billion.
Notably, Mr. Kazimi spearheaded the $6 billion sale of Nimbus’s TYK2 program to Takeda, the $1.2 billion sale of its NASH (ACC) program to Gilead, and multiple licensing deals exceeding $1.5 billion with partners such as Genentech, Celgene/Roche, and Eli Lilly. Under his leadership, Nimbus has advanced four programs into the clinic, returned over $4 billion to investors, and continues to expand its computational drug discovery and clinical development capabilities.
In 2025, Mr. Kazimi joined the board of Unnatural Products (UNP), a biotech company pioneering orally delivered macrocyclic peptides to tackle previously undruggable targets. He also serves on the Editorial Advisory Board for In Vivo magazine, a leading publication offering strategic insights and analysis of the pharmaceutical, biotechnology, medtech, and consumer health industries. Along with his family, he established the Kazimi Family Endowment for Data Science in Oncology at MD Anderson Cancer Center. This endowment reflects their personal commitment to philanthropy and their vision for revolutionizing cancer treatment through data-driven innovation.
At the core of Mr. Kazimi’s leadership is a deep sense of purpose—one that seeks to change the trajectory of medical diagnoses where options are limited. The ability to give patients, prescribers, and families a new outlook on life is a powerful responsibility—and one he knows the biopharmaceutical sector has the ability to fulfill.
Before Nimbus, he was at Extera Partners, LLC (formerly PureTech Development, LLC), where he provided strategic advisory, supported fundraising, and executed numerous business development transactions. Earlier in his career, he was with JSB-Partners, LP, a specialized investment banking and advisory firm serving biotech and pharmaceutical companies.
Mr. Kazimi holds a B.A. from the University of Texas at Austin and an M.S. from Harvard University.
Curran Simpson, President & CEO of REGENXBIO, on Gene Therapy, Strategy & Patient-Centered Impact
Biotech 2050 Podcast
28 minutes 19 seconds
4 months ago
Curran Simpson, President & CEO of REGENXBIO, on Gene Therapy, Strategy & Patient-Centered Impact
Synopsis:
When an introverted engineer becomes the President & CEO of REGENXBIO, transformation follows. Curran Simpson joins host Rahul Chaturvedi to unpack his unlikely journey from biotech operations to the C-suite—and how that hands-on experience is reshaping gene therapy's future.
They dive into the evolution of REGENXBIO’s pipeline, tackling ultra-rare diseases like MPS II, ambitious plans for Duchenne Muscular Dystrophy, and commercial partnerships with giants like AbbVie. Curran offers hard-earned leadership lessons, honest reflections on scaling science, and insights into how one-time gene therapies could revolutionize treatment in both rare and common diseases.
From clinical nuance to strategic boldness, this is a masterclass in biotech leadership, platform focus, and staying patient-first—no matter how complex the science or market.
Biography:
Curran M. Simpson is the President and Chief Executive Officer and member of the Board of Directors at REGENXBIO. Mr. Simpson previously served as the Company’s Chief Operating Officer. In that role, he led key business functions including Research & Clinical Development, Corporate Strategy, Manufacturing & Quality, Regulatory, and Commercial Operations. Mr. Simpson joined REGENXBIO in 2015 with extensive leadership experience across biopharmaceutical operations and served as the Company’s Chief Technology and Operations Officer before becoming COO. Prior to joining REGENXBIO, he was the Regional Supply Chain Head for North America and Interim Chief Operating Officer at GlaxoSmithKline (GSK). Mr. Simpson earlier served as interim CEO of Human Genome Sciences (HGS), where he led the integration of HGS into GSK, and as Senior Vice President of Operations and Vice President of Manufacturing Operations at HGS. Prior to HGS, Mr. Simpson was Director of Manufacturing Sciences at Biogen. Earlier in his career, Mr. Simpson served in an overseas assignment at Novo-Nordisk Biochem in Denmark and in various senior development and engineer roles at Genentech, working on Herceptin and Avastin, among other roles. Mr. Simpson has an M.S. in surface and colloid science from Clarkson University and a B.S. in chemistry from the Clarkson College of Technology.
Biotech 2050 Podcast
Synopsis:
Nimbus Therapeutics CEO Abbas Kazimi walks Alok Tayi through the company’s evolving pipeline and playbook for choosing the right risks in a noisy biotech environment. From Werner helicase for MSI-high cancers to a highly selective SIK2 program and GLP-1–adjacent strategies focused on body composition, Abbas details how Nimbus balances rigor, speed, and capital efficiency.
He shares candid lessons from pausing and later resurrecting AMPK beta in partnership with Eli Lilly, the decision to remain modality-agnostic but small-molecule-centric, and the importance of knowing when not to chase the latest fad. Throughout, Abbas returns to a consistent theme: success at Nimbus comes from disciplined target selection, deep collaboration, and a culture that empowers teams to make hard calls in service of patients rather than headlines.
Biography:
Abbas Kazimi is the Chief Executive Officer of Nimbus Therapeutics. Previously, he served as Chief Business Officer, leading the company’s strategic and corporate development efforts while overseeing business operations. Since joining Nimbus in 2014, he has helped raise over $630 million in equity financing and led transactions totaling more than $8 billion.
Notably, Mr. Kazimi spearheaded the $6 billion sale of Nimbus’s TYK2 program to Takeda, the $1.2 billion sale of its NASH (ACC) program to Gilead, and multiple licensing deals exceeding $1.5 billion with partners such as Genentech, Celgene/Roche, and Eli Lilly. Under his leadership, Nimbus has advanced four programs into the clinic, returned over $4 billion to investors, and continues to expand its computational drug discovery and clinical development capabilities.
In 2025, Mr. Kazimi joined the board of Unnatural Products (UNP), a biotech company pioneering orally delivered macrocyclic peptides to tackle previously undruggable targets. He also serves on the Editorial Advisory Board for In Vivo magazine, a leading publication offering strategic insights and analysis of the pharmaceutical, biotechnology, medtech, and consumer health industries. Along with his family, he established the Kazimi Family Endowment for Data Science in Oncology at MD Anderson Cancer Center. This endowment reflects their personal commitment to philanthropy and their vision for revolutionizing cancer treatment through data-driven innovation.
At the core of Mr. Kazimi’s leadership is a deep sense of purpose—one that seeks to change the trajectory of medical diagnoses where options are limited. The ability to give patients, prescribers, and families a new outlook on life is a powerful responsibility—and one he knows the biopharmaceutical sector has the ability to fulfill.
Before Nimbus, he was at Extera Partners, LLC (formerly PureTech Development, LLC), where he provided strategic advisory, supported fundraising, and executed numerous business development transactions. Earlier in his career, he was with JSB-Partners, LP, a specialized investment banking and advisory firm serving biotech and pharmaceutical companies.
Mr. Kazimi holds a B.A. from the University of Texas at Austin and an M.S. from Harvard University.
