Circle Pharma company logo

The profile is currenly unclaimed by the seller. All information is provided by CB Insights.

Founded Year



Series C | Alive

Total Raised


Last Raised

$66M | 1 yr ago

About Circle Pharma

Circle Pharma is an early-stage biotechnology company applying proprietary computational design algorithms and innovative chemistry to develop cell-permeable macrocycle peptide therapeutics against important clinical targets. It does this through an iterative, rational design process that deploys large virtual libraries of conformationally diverse macrocycle scaffolds selected for inherent permeability.

Circle Pharma Headquarter Location

681 Gateway Boulevard LGL 3rd Floor

South San Francisco, California, 94080,

United States


Predict your next investment

The CB Insights tech market intelligence platform analyzes millions of data points on venture capital, startups, patents , partnerships and news mentions to help you see tomorrow's opportunities, today.

Expert Collections containing Circle Pharma

Expert Collections are analyst-curated lists that highlight the companies you need to know in the most important technology spaces.

Circle Pharma is included in 3 Expert Collections, including Biopharma Tech.


Biopharma Tech

5,241 items

Companies involved in the research, development, and commercialization of chemically- or biologically-derived therapeutic & theranostic drugs. Excludes vitamins/supplements, CROs/clinical trial services.


Regenerative Medicine

1,818 items

Regenerative medicine refers to the process of activating, replacing, engineering or regenerating human genetic material, cells, tissues or organs to restore normal function. It also includes bioengineered tissues used for in vitro testing (e.g. organ-on-a-chip, organoids).


Digital Health

12,795 items

Technologies, platforms, and systems that engage consumers for lifestyle, wellness, or health-related purposes; capture, store, or transmit health data; and/or support life science and clinical operations. (DiME, DTA, HealthXL, & NODE.Health)

Circle Pharma Patents

Circle Pharma has filed 1 patent.

The 3 most popular patent topics include:

  • Biotechnology
  • Cyclic peptides
  • Drug discovery
patents chart

Application Date

Grant Date


Related Topics




Peptides, Cyclic peptides, Drug discovery, Molecular biology, Biotechnology


Application Date


Grant Date



Related Topics

Peptides, Cyclic peptides, Drug discovery, Molecular biology, Biotechnology



Latest Circle Pharma News

Circle Pharma Announces Presentation at the American Association for Cancer Research 2022 Annual Meeting

Apr 11, 2022

April 11, 2022 07:00 AM Eastern Daylight Time SOUTH SAN FRANCISCO, Calif.--( BUSINESS WIRE )--Circle Pharma, a pre-clinical stage company focused on developing macrocycle therapeutics against targets previously considered to be undruggable, will present a poster at the American Association for Cancer Research (AACR) Annual Meeting being held April 8-13, in New Orleans, Louisiana. The Company’s presentation will provide details of its progress towards structure-guided macrocycles that inhibit the protein-protein interaction between the cyclin A:CDK2 complex and key substrates that are phosphorylated by this complex. Inhibition of Cyclin A substrate binding has been postulated to be synthetic lethal in Rb mutated cancers. The data presented include evidence that macrocycle inhibitors of cyclin A induce G2/M arrest and apoptosis in small cell lung cancer (SCLC) cell lines and have anti-tumor efficacy in SCLC xenograft animal models. Circle plans to advance its cyclin A inhibitor program to the clinic for testing in a range of cancer types, including SCLC where Rb mutations are highly prevalent. The presentation will be made as part of the Mechanisms of Drug Action / Experimental and Molecular Therapeutics session at the AACR meeting, Abstract No. 5379. About Circle Pharma, Inc. Circle is a pre-clinical stage company deploying a platform that combines structure-based rational drug design and advanced synthetic chemistry to develop first-in-class macrocycle therapeutics for challenging targets to address unmet clinical needs. Circle’s technology facilitates the design and synthesis of intrinsically cell-permeable macrocycles that can address both intra- and extra-cellular therapeutic targets, and can be delivered by multiple routes, including oral administration. Circle’s macrocycle drug discovery & development platform is applicable across a wide range of serious diseases; the company is initially focusing its development efforts on intracellular protein-protein interactions that are key drivers in cancer. Its lead programs target cyclin proteins, including cyclins A and E, which are part of the regulatory machinery that controls progression of cells through the cell cycle. Inhibition of cyclin A has been reported to be synthetic lethal to cancer cells that carry mutations causing dysregulation of the Rb pathway – such mutations are frequently found in small cell lung cancer. Cyclin E upregulation is found in many tumor types including uterine and ovarian cancer and is often associated with resistance to widely used cancer therapies, including trastuzumab and cdk4/6 inhibitors. Contacts

Circle Pharma Web Traffic

Page Views per User (PVPU)
Page Views per Million (PVPM)
Reach per Million (RPM)
CBI Logo

Circle Pharma Rank

Discover the right solution for your team

The CB Insights tech market intelligence platform analyzes millions of data points on vendors, products, partnerships, and patents to help your team find their next technology solution.

Request a demo

CBI websites generally use certain cookies to enable better interactions with our sites and services. Use of these cookies, which may be stored on your device, permits us to improve and customize your experience. You can read more about your cookie choices at our privacy policy here. By continuing to use this site you are consenting to these choices.