Frazier Life Sciences

Frazier Life Sciences is a private equity and venture capital firm established in 1991 and based in Seattle, Washington, with a focus on investing in and building companies that develop and commercialize novel therapeutics. The firm targets a wide range of investment stages, from company formation to public offerings, and emphasizes opportunities addressing unmet medical needs within the healthcare sector. Frazier Life Sciences invests primarily in drug development, including pre-clinical and clinical opportunities, and has a preference for profitable companies in healthcare services, pharmaceutical services, medical products, and biotechnology. The firm typically commits between $3 million and $100 million per transaction, often taking a majority stake and acting as a lead investor to actively support portfolio companies through its extensive network of healthcare executives and industry experts. Frazier Life Sciences seeks to invest in companies located in North America and Europe, particularly in innovation hubs such as the Bay Area, San Diego, Seattle, Boston, and North Carolina.

43 past transactions

Jade Biosciences

Post in 2025
Jade Biosciences is a biopharmaceutical company dedicated to developing innovative therapies for unmet needs in autoimmune diseases. Its lead asset, JADE-001, targets the APRIL pathway for treating IgA nephropathy, with initial clinical trials planned. Additionally, Jade has two preclinical antibody discovery programs, JADE-002 and JADE-003. The company was founded upon assets licensed from Paragon Therapeutics.

Attovia Therapeutics

Series C in 2025
Attovia Therapeutics is a biotherapeutics pipeline developer focused on immune-mediated illness and oncology. The company uses the nanobody platform to create tiny format binders with low picomolar affinity, increased selectivity, quicker internalization, and rapid tissue penetration, thereby assisting cancer patients' treatment.

Trevi Therapeutics

Post in 2024
Trevi Therapeutics, Inc. is a clinical-stage biopharmaceutical company based in New Haven, Connecticut, established in 2011. The company specializes in the development and commercialization of Haduvio, an oral extended-release formulation of nalbuphine. Haduvio is currently undergoing a Phase IIb/III clinical trial, known as the PRISM trial, aimed at treating chronic pruritus associated with prurigo nodularis. Additionally, Trevi is exploring the use of nalbuphine ER for other serious neurologically mediated conditions, including chronic cough in patients with idiopathic pulmonary fibrosis and levodopa-induced dyskinesia in individuals with Parkinson’s disease. The treatment targets conditions that share a common pathophysiology mediated through opioid receptors in the central and peripheral nervous systems.

Palvella Therapeutics

Post in 2024
Palvella Therapeutics is a biopharmaceutical company founded in 2015 and headquartered in Wayne, Pennsylvania. The company focuses on developing pathogenetically targeted therapies for serious and rare genetic skin diseases that lack approved treatments. Its lead candidate, QTORIN 3.9 % rapamycin anhydrous gel, is built on a patented QTORIN platform and is in late‑stage clinical development for two rare genodermatoses. Palvella’s approach emphasizes addressing the root cause of disease and delivering stable, room‑temperature formulations that penetrate the epidermis and dermis.

Maze Therapeutics

Series D in 2024
Maze Therapeutics is a biotechnology company focused on developing medicines that mimic the effects of rare, protective genetic variants to address unmet medical needs. Utilizing its Compass platform, the company identifies genetic variants associated with diseases and maps them to the biological pathways driving these conditions in specific patient populations.

35Pharma

Series C in 2024
35Pharma is a biopharmaceutical company that designs and develops innovative biologics to address diseases with high unmet medical need. The company applies protein engineering and a deep understanding of transforming growth factor-beta structure-function relationships to create potent ligand traps for cardio-pulmonary and metabolic diseases, including pulmonary hypertension and musculoskeletal disorders.

Crescent Biopharma

Funding Round in 2024
Crescent Biopharma is a biotechnology firm focused on developing novel precision-engineered medicines targeting verified biology to improve care for patients with solid tumors.

Eledon Pharmaceuticals

Post in 2024
Eledon Pharmaceuticals is a clinical-stage biotechnology company focused on developing treatments for patients undergoing organ or cellular transplantation and those with autoimmune and neurodegenerative diseases. Its lead compound, tegoprubart, is an anti-CD40L antibody targeting the CD40L pathway.

Alpha9 Theranostics

Series C in 2024
Alpha9 Theranostics is a biopharma company that focuses on radiotherapeutics for the treatment of solid and hematologic malignancies. The company is creating a strong pipeline of radiopharmaceuticals to target solid and hematologic malignancies. Its systematic approach to radiotherapeutic design is fueled by a toolbox of technologies and chemistries, which offers broad potential for expansion into a multitude of oncology targets. Alpha9 Theranostics was founded in 2019 and is headquartered in Vancouver, Canada.

Egetis Therapeutics

Post in 2024
Egetis Therapeutics AB is a pharmaceutical drug development company based in Stockholm, Sweden, that specializes in late-stage projects targeting serious rare diseases with significant unmet medical needs, particularly within the orphan drug segment. The company is actively developing several innovative therapies, including PledOx, which is undergoing Phase III clinical trials to protect patients from chemotherapy-induced nerve damage while preserving the anticancer effects. Additionally, Egetis is working on Emcitate, a treatment for MCT8 deficiency, a rare genetic condition affecting thyroid hormone signaling, and Aladote, which aims to mitigate the risk of acute liver injury from acetaminophen poisoning. Founded in 2006, Egetis Therapeutics was previously known as PledPharma AB until its name change in December 2020.

GondolaBio

Venture Round in 2024
GondolaBio is a biopharmaceutical company dedicated to researching, developing, and manufacturing pharmaceutical products. Its primary focus is on creating therapeutics for patients with genetic diseases, addressing high unmet medical needs across various therapeutic areas and stages of development. The company leverages biological research to drive its mission, aiming to enable the healthcare industry to effectively treat and manage rare genetic conditions.

MBX Biosciences

Series C in 2024
MBX Biosciences is a biotechnology company focused on developing therapies for endocrine and metabolic disorders, emphasizing rare endocrine diseases with limited treatment options. It pursues discovery, development, and commercialization of first-in-class peptide therapeutics that modulate glandular hormone signaling. MBX has developed a proprietary Precision Endocrine Peptide platform to engineer peptides with extended time-action profiles and consistent drug exposure, aiming to overcome limitations of traditional peptide therapies and improve disease management. Based in Carmel, Indiana, the company advances novel peptide programs through clinical development to address unmet medical needs in endocrine and metabolic disorders.

Jade Biosciences

Series A in 2024
Jade Biosciences is a biopharmaceutical company dedicated to developing innovative therapies for unmet needs in autoimmune diseases. Its lead asset, JADE-001, targets the APRIL pathway for treating IgA nephropathy, with initial clinical trials planned. Additionally, Jade has two preclinical antibody discovery programs, JADE-002 and JADE-003. The company was founded upon assets licensed from Paragon Therapeutics.

Savara Pharmaceuticals

Post in 2024
Savara is an orphan lung disease company. Savara’s pipeline comprises Molgradex, an inhaled granulocyte-macrophage colony-stimulating factor, or GM-CSF, in Phase 3 development for autoimmune pulmonary alveolar proteinosis, or aPAP, in Phase 2a development for nontuberculous mycobacteria, or NTM, lung infection, and in preparation for Phase 2a development in cystic fibrosis, or CF, affected individuals with chronic NTM lung infection; and AeroVanc, a Phase 3 stage inhaled vancomycin for treatment of persistent methicillin resistant staphylococcus aureus, or MRSA, lung infection in CF. Savara’s strategy involves expanding its pipeline of potentially best-in-class products through indication expansion, strategic development partnerships and product acquisitions, with the goal of becoming a leading company in its field. The most recent acquisition is aerosolized amikacin/fosfomycin, a Phase 2 ready, proprietary combination antibiotic, which has demonstrated potent and broad-spectrum antibacterial activity against highly drug resistant pathogens. Savara’s management team has significant experience in orphan drug development and pulmonary medicine, identifying unmet needs, developing and acquiring new product candidates, and effectively advancing them to approvals and commercialization.

Mereo Biopharma

Post in 2024
Mereo Biopharma, established in London in 2015, specializes in acquiring and advancing late-stage drug candidates from larger pharmaceutical companies. These candidates, often overlooked due to resource constraints, target rare and specialized diseases with significant unmet medical needs. Mereo's strategy involves rapidly progressing these assets through clinical development, either by partnering or divesting them, or directly commercializing them, particularly in orphan disease indications. The company combines operational efficiency with financial resources, leveraging a unique partnership with a leading global CRO, ICON, to conduct comprehensive clinical studies. Mereo's focus is on transforming the lives of patients worldwide by developing innovative medicines that can significantly improve their quality of life.

Disc Medicine

Post in 2024
Disc Medicine is a clinical-stage biopharmaceutical company focused on developing innovative treatments for patients with severe hematologic disorders. Its pipeline includes therapies targeting erythropoietic porphyrias, Diamond-Blackfan Anemia, anemia of myelofibrosis and chronic kidney disease, as well as polycythemia vera.

Attovia Therapeutics

Series B in 2024
Attovia Therapeutics is a biotherapeutics pipeline developer focused on immune-mediated illness and oncology. The company uses the nanobody platform to create tiny format binders with low picomolar affinity, increased selectivity, quicker internalization, and rapid tissue penetration, thereby assisting cancer patients' treatment.

Enlaza Therapeutics

Series A in 2024
Founded in 2020, Enlaza Therapeutics is a biotechnology company based in La Jolla, California. It specializes in developing covalent protein therapeutics using a novel synthetic biology platform, aiming to deliver efficacious and safer treatments with prolonged effects and minimal systemic exposure.

Diagonal Therapeutics

Series A in 2024
Diagonal Therapeutics is a biotechnology startup focused on discovering and developing agonist antibodies. The company utilizes a unique platform that integrates proprietary computational and experimental methodologies to address longstanding challenges in agonist antibody drug development. By overcoming these obstacles, Diagonal Therapeutics aims to enable medical practitioners to deliver therapies for conditions such as hereditary hemorrhagic telangiectasia and pulmonary arterial hypertension, thereby advancing treatment options for patients.

Applied Therapeutics

Post in 2024
Applied Therapeutics is a biopharmaceutical company focused on developing transformative drugs targeting fatal and debilitating diseases with high unmet medical needs. Its pipeline includes novel product candidates such as AT-007 for rare metabolic diseases like galactosemia, AT-001 for diabetic cardiomyopathy, and AT-003 for diabetic retinopathy.

Sudo Biosciences

Series B in 2024
Sudo Biosciences is a biopharmaceutical company focused on designing and developing innovative medicines that target the tyrosine kinase 2 (TYK2) pseudokinase domain. This domain plays a vital role in cytokine signaling pathways associated with various immune-mediated inflammatory conditions. Sudo Biosciences has a pipeline of next-generation TYK2 inhibitors, including a candidate aimed at treating multiple sclerosis and neurodegenerative diseases characterized by neuroinflammation, as well as a topical treatment for immune-mediated dermatologic diseases. The company's mission is to provide effective therapies for patients at competitive costs, thereby transforming their lives and addressing unmet medical needs.

PepGen

Post in 2024
PepGen Ltd. is a clinical-stage biotechnology company based in Oxford, United Kingdom, focused on advancing the next generation of nucleic acid therapeutics, particularly in the treatment of severe neuromuscular and neurologic diseases. Incorporated in 2018, PepGen has developed its Enhanced Delivery Oligonucleotide (EDO) platform, which is designed to improve the uptake and activity of conjugated oligonucleotide therapeutics. The company's innovative EDO peptides enhance tissue penetration, cellular uptake, and nuclear delivery, demonstrating their ability to transport oligonucleotides effectively into various target tissues, including smooth, skeletal, and cardiac muscle, as well as the central nervous system. PepGen aims to unlock the clinical potential of these transformative therapeutics, with a particular emphasis on the effective delivery of antisense oligonucleotides, and is advancing its novel conjugate therapeutics toward clinical application.

Adverum Biotechnologies

Post in 2024
Adverum Biotechnologies is a clinical-stage gene therapy company focused on developing innovative treatments for ocular and rare diseases. Headquartered in Redwood City, California, the company aims to establish gene therapy as a new standard of care, aspiring to provide functional cures that restore vision and prevent blindness. Its pipeline includes several product candidates, notably ADVM-022, which targets wet age-related macular degeneration through a single intravitreal injection designed to deliver long-term therapeutic effects. Other candidates include ADVM-043 for alpha-1 antitrypsin deficiency and ADVM-053 for hereditary angioedema. Adverum collaborates with partners like Editas Medicine and Regeneron Pharmaceuticals to leverage advanced AAV vectors and develop treatments for various inherited retinal diseases and ocular therapeutic targets. Founded in 2006, the company was previously known as Avalanche Biotechnologies and rebranded in 2016.

Silence Therapeutics

Post in 2024
Silence Therapeutics plc is a biotechnology company based in London, specializing in the discovery and development of innovative RNA therapeutics. The company focuses on utilizing short interfering RNA (siRNA) technology to modulate gene expression and address various medical conditions, including hematology, cardiovascular diseases, and rare metabolic disorders. Its pipeline includes several product candidates, such as SLN124, aimed at treating iron overload disorders by silencing the TMPRSS6 gene, and SLN360, which targets the LPA gene to reduce the risk of cardiovascular diseases. Silence Therapeutics has established strategic collaborations with major organizations, including AstraZeneca, to advance the development of siRNA therapeutics across multiple disease areas. The company leverages its proprietary genetic toolkit and delivery systems to optimize therapeutic outcomes, harnessing the body's natural biological mechanisms for effective treatment.

Sudo Biosciences

Series B in 2023
Sudo Biosciences is a biopharmaceutical company focused on designing and developing innovative medicines that target the tyrosine kinase 2 (TYK2) pseudokinase domain. This domain plays a vital role in cytokine signaling pathways associated with various immune-mediated inflammatory conditions. Sudo Biosciences has a pipeline of next-generation TYK2 inhibitors, including a candidate aimed at treating multiple sclerosis and neurodegenerative diseases characterized by neuroinflammation, as well as a topical treatment for immune-mediated dermatologic diseases. The company's mission is to provide effective therapies for patients at competitive costs, thereby transforming their lives and addressing unmet medical needs.

Lassen Therapeutics

Series B in 2023
Lassen Therapeutics is a biotechnology company focused on developing monoclonal antibodies as potential treatments for fibrosis, rare diseases, and oncology. Its lead candidate, LASN01, targets the IL-11 receptor alpha, a critical mediator in fibrosis and tumor microenvironment organization. By blocking IL-11, Lassen Therapeutics aims to offer a more effective treatment strategy compared to traditional approaches that focus on other factors, such as TGF-β and CTGF. The company's innovative biotherapeutics leverage advanced antibody technologies to address serious health conditions, ultimately improving the lives of patients suffering from these diseases.

Egetis Therapeutics

Post in 2023
Egetis Therapeutics AB is a pharmaceutical drug development company based in Stockholm, Sweden, that specializes in late-stage projects targeting serious rare diseases with significant unmet medical needs, particularly within the orphan drug segment. The company is actively developing several innovative therapies, including PledOx, which is undergoing Phase III clinical trials to protect patients from chemotherapy-induced nerve damage while preserving the anticancer effects. Additionally, Egetis is working on Emcitate, a treatment for MCT8 deficiency, a rare genetic condition affecting thyroid hormone signaling, and Aladote, which aims to mitigate the risk of acute liver injury from acetaminophen poisoning. Founded in 2006, Egetis Therapeutics was previously known as PledPharma AB until its name change in December 2020.

Soleno Therapeutics

Post in 2023
Soleno Therapeutics is a clinical-stage biopharmaceutical company focused on developing novel therapeutics for rare diseases. Its lead candidate, Diazoxide Choline Controlled Release (DCCR), an extended-release formulation of diazoxide, is being evaluated in Phase III trials for the treatment of Prader-Willi Syndrome.

AN2 Therapeutics

Post in 2023
AN2 Therapeutics is a biopharmaceutical company dedicated to researching, developing, and commercializing innovative medicines targeting infectious diseases. Established in 2017, the company focuses on advancing a clinical-stage antibacterial compound and has a strategic partnership with Brii Biosciences.

Radionetics Oncology

Series A in 2023
Radionetics Oncology is a biopharmaceutical company dedicated to the discovery and development of innovative radiotherapeutics aimed at treating various oncology indications. The company specializes in creating non-peptide and small molecule therapies that facilitate the targeted delivery of therapeutic radioisotopes to solid tumors. By focusing on these advanced treatment options, Radionetics Oncology seeks to enhance the effectiveness of cancer therapies and improve patient outcomes in oncology care.

ORIC Pharmaceuticals

Post in 2023
ORIC Pharmaceuticals is a clinical-stage biopharmaceutical company focused on developing innovative therapies to combat cancer by overcoming resistance mechanisms. The company's lead product candidate, ORIC-101, is a small molecule antagonist of the glucocorticoid receptor, which plays a significant role in resistance to various cancer treatments across multiple solid tumors. Another key candidate, ORIC-533, is an orally bioavailable inhibitor of CD73, targeting a critical pathway in the adenosine metabolism that contributes to resistance against chemotherapy and immunotherapy. Additionally, ORIC is working on a pipeline of precision medicines aimed at addressing other cancer resistance mechanisms. Founded in 2014 and headquartered in South San Francisco, California, ORIC Pharmaceuticals leverages the expertise of its scientific founders, who have extensive backgrounds in cancer research and target discovery.

Attovia Therapeutics

Series A in 2023
Attovia Therapeutics is a biotherapeutics pipeline developer focused on immune-mediated illness and oncology. The company uses the nanobody platform to create tiny format binders with low picomolar affinity, increased selectivity, quicker internalization, and rapid tissue penetration, thereby assisting cancer patients' treatment.

Carmot Therapeutics

Series E in 2023
Carmot Therapeutics, Inc. is a clinical-stage biotechnology company based in Berkeley, California, with an additional office in San Francisco. Founded in 2008, it focuses on discovering and developing innovative therapies for patients with metabolic diseases, including obesity and diabetes. Utilizing its proprietary Chemotype Evolution technology, Carmot Therapeutics aims to address the underlying causes of these conditions and accelerate the discovery of effective treatments. The company’s portfolio includes several clinical-stage drug candidates, such as CT-388 and CT-996, which are designed as GLP-1 receptor agonists for the treatment of obesity and type 2 diabetes, and CT-868, intended for type 1 diabetes patients who are overweight or obese. Through these efforts, Carmot Therapeutics seeks to create life-changing therapeutics that improve the health outcomes of individuals affected by metabolic diseases.

Krystal Biotech

Post in 2023
Krystal Biotech, Inc. is a biopharmaceutical company based in Pittsburgh, Pennsylvania, specializing in gene therapy for patients with rare skin diseases. Founded in 2015, the company develops innovative treatments using its proprietary STAR-D gene therapy platform, which targets dermatological conditions caused by genetic mutations. Its lead candidate, beremagene geperpavec (B-VEC), is in clinical development for dystrophic epidermolysis bullosa, having completed Phase I/II studies. Krystal Biotech is also advancing other product candidates, including KB105, which is in Phase I/II trials for autosomal recessive congenital ichthyosis, and KB301 and KB104, which are in preclinical stages for aesthetic skin conditions and Netherton Syndrome, respectively. Additionally, the company is exploring treatments for chronic skin diseases through its discovery-stage candidate KB5xx. Krystal Biotech aims to enhance the quality of life for patients suffering from debilitating skin disorders with its gene therapy solutions.

Alpha9 Theranostics

Series B in 2022
Alpha9 Theranostics is a biopharma company that focuses on radiotherapeutics for the treatment of solid and hematologic malignancies. The company is creating a strong pipeline of radiopharmaceuticals to target solid and hematologic malignancies. Its systematic approach to radiotherapeutic design is fueled by a toolbox of technologies and chemistries, which offers broad potential for expansion into a multitude of oncology targets. Alpha9 Theranostics was founded in 2019 and is headquartered in Vancouver, Canada.

MBX Biosciences

Series B in 2022
MBX Biosciences is a biotechnology company focused on developing therapies for endocrine and metabolic disorders, emphasizing rare endocrine diseases with limited treatment options. It pursues discovery, development, and commercialization of first-in-class peptide therapeutics that modulate glandular hormone signaling. MBX has developed a proprietary Precision Endocrine Peptide platform to engineer peptides with extended time-action profiles and consistent drug exposure, aiming to overcome limitations of traditional peptide therapies and improve disease management. Based in Carmel, Indiana, the company advances novel peptide programs through clinical development to address unmet medical needs in endocrine and metabolic disorders.

VectivBio

Post in 2022
VectivBio AG is a clinical-stage biotechnology company based in Basel, Switzerland, founded in 2019 as a spinout from Therachon. The company specializes in the discovery, development, and commercialization of innovative treatments for severe rare diseases, particularly those with significant unmet medical needs. Its lead product candidate, Apraglutide, is a synthetic GLP-2 analog designed to enhance the intestine’s ability to absorb fluids and nutrients, thereby reducing the reliance on parenteral support in patients with short bowel syndrome. VectivBio is dedicated to developing best-in-disease therapies that aim to meaningfully improve the lives of patients and their families, providing more than just incremental advancements over existing standard-of-care options.

Enlaza Therapeutics

Venture Round in 2022
Founded in 2020, Enlaza Therapeutics is a biotechnology company based in La Jolla, California. It specializes in developing covalent protein therapeutics using a novel synthetic biology platform, aiming to deliver efficacious and safer treatments with prolonged effects and minimal systemic exposure.

Immunovant

Post in 2022
Immunovant is a clinical-stage biopharmaceutical company focused on developing monoclonal antibodies for treating autoimmune diseases. Its lead candidate, IMVT-1401, targets the neonatal Fc receptor (FcRn) and is in Phase II trials for myasthenia gravis, thyroid eye disease, and warm autoimmune hemolytic anemia.

Sudo Biosciences

Series A in 2022
Sudo Biosciences is a biopharmaceutical company focused on designing and developing innovative medicines that target the tyrosine kinase 2 (TYK2) pseudokinase domain. This domain plays a vital role in cytokine signaling pathways associated with various immune-mediated inflammatory conditions. Sudo Biosciences has a pipeline of next-generation TYK2 inhibitors, including a candidate aimed at treating multiple sclerosis and neurodegenerative diseases characterized by neuroinflammation, as well as a topical treatment for immune-mediated dermatologic diseases. The company's mission is to provide effective therapies for patients at competitive costs, thereby transforming their lives and addressing unmet medical needs.

Allakos

Post in 2022
Allakos Inc. is a clinical-stage biopharmaceutical company founded in 2012 and headquartered in Redwood City, California. The company focuses on developing antibody-based therapeutics aimed at treating diseases associated with dysregulation of the T-helper type 2 immune response, which plays a crucial role in various allergic and inflammatory conditions. Its lead product, antolimab (AK002), is being investigated for the treatment of eosinophilic gastritis, eosinophilic gastroenteritis, chronic urticaria, indolent systemic mastocytosis, and severe allergic conjunctivitis. Additionally, Allakos is developing AK006, an antibody that targets the Siglec-6 receptor on mast cells, designed to activate the receptor's inhibitory function and reduce mast cell activation. Through these innovative therapies, Allakos aims to address the underlying mechanisms of diseases characterized by excessive inflammatory responses.

Trevi Therapeutics

Post in 2022
Trevi Therapeutics, Inc. is a clinical-stage biopharmaceutical company based in New Haven, Connecticut, established in 2011. The company specializes in the development and commercialization of Haduvio, an oral extended-release formulation of nalbuphine. Haduvio is currently undergoing a Phase IIb/III clinical trial, known as the PRISM trial, aimed at treating chronic pruritus associated with prurigo nodularis. Additionally, Trevi is exploring the use of nalbuphine ER for other serious neurologically mediated conditions, including chronic cough in patients with idiopathic pulmonary fibrosis and levodopa-induced dyskinesia in individuals with Parkinson’s disease. The treatment targets conditions that share a common pathophysiology mediated through opioid receptors in the central and peripheral nervous systems.

Lexeo Therapeutics

Lexeo Therapeutics is a fully integrated biotechnology company focused on developing adeno-associated virus (AAV)-mediated gene therapies. Its lead programs target both rare and non-rare monogenic diseases, with a preclinical pipeline that spans monogenic, hereditary, and acquired conditions across populations with unmet medical need. The company aims to advance clinical programs toward commercialization while maintaining an ongoing research collaboration with Weill Cornell Medicine’s Department of Genetic Medicine to inform and accelerate its preclinical and clinical work. By leveraging AAV-based approaches and collaborations, Lexeo Therapeutics seeks to transform treatment options for patients with genetic and complex diseases.
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