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§ Private Profile · 1216 Harris St, Charlottesville, Virginia, 22903, United States
Biotechnology company developing long-lasting reversible male contraception, focused on hydrogel vas deferens injections.
Contraline is a Charlottesville, Virginia-based biotechnology company founded by Kevin Eisenfrats and University of Virginia professor John Herr to develop novel male contraceptive technologies. The firm's primary clinical focus is Adam, a long-lasting and reversible hydrogel contraceptive that is delivered into the vas deferens during a minimally invasive 15-minute procedure. To support ongoing human clinical trials in Australia and commercialization efforts, the enterprise has secured over $25 million in total venture funding, including a $2.25 million seed round led by Founders Fund and Abstract Ventures. The organization's intellectual property portfolio encompasses more than 50 patents related to biomaterials and drug delivery, guided by urology specialist and Chief Medical Officer Paul Turek. Beyond its flagship injectable contraceptive, the venture-backed company has also developed the first FDA-cleared at-home sperm test to provide men with comprehensive reproductive health options.
Contraline has raised $23.7M across 5 funding rounds.
Contraline has raised $23.7M in total across 5 funding rounds.
Contraline is a medical device company developing ADAM™, a long-lasting, non-hormonal, and reversible male contraceptive implant using hydrogel technology, often described as the "male IUD."[1][2][3][4] The product targets men and couples seeking effective birth control without hormonal side effects; it serves by injecting a proprietary hydrogel (previously referenced as Echo-V) into the vas deferens via a minimally invasive outpatient procedure, blocking sperm while allowing fluid passage.[1][3] This solves the problem of limited male contraceptive options beyond condoms or vasectomy, aiming for 10+ years of efficacy with reversibility.[1][4] Headquartered in Charlottesville, Virginia, with about 10 employees, Contraline has raised funding through grants (e.g., $1M from Male Contraceptive Initiative in 2020), competition awards, private investment, and venture capital, and remains in the development stage with clinical trials underway.[1][2]
Contraline was founded in 2015 by Kevin Eisenfrats (Co-Founder and CEO) and Dr. John Herr, leveraging advancements in hydrogel technology for vas-occlusion.[1] Eisenfrats, with a background in medical device innovation, leads efforts focused on clinical translation and patient satisfaction; the company emerged from research addressing decades of failed attempts at non-hormonal male contraception.[1][3] Early traction included a $200K grant from the Male Contraceptive Initiative in 2018 and a $1M investment in 2020 to fund clinical trials, marking pivotal moments that propelled development of ADAM™.[1] Based at 1216 Harris Street in Charlottesville, the team has grown to support ongoing trials and hiring, such as for senior design engineers.[2]
Contraline rides the trend toward contraceptive equity and shared reproductive responsibility, addressing the market gap where women bear most long-acting options amid rising demand for male-involved birth control.[1][3] Timing aligns with maturing hydrogel tech and funding for male contraceptives, fueled by societal shifts post-#MeToo and clinical progress (e.g., ongoing trials).[1] Favorable forces include regulatory interest in non-hormonal innovations and a $20B+ global contraception market, where male options remain <10%.[1] The company influences the ecosystem by pioneering the "intra-vas device" (IVD), potentially spurring competitors and normalizing male contraception in medtech hubs like Charlottesville's BioHub.[2][3]
Contraline's clinical trials position it for potential FDA clearance in the late 2020s, with next steps including trial expansion, reversibility data, and commercialization partnerships.[1] Trends like personalized medtech, ultrasound integration, and gender-balanced family planning will accelerate adoption, evolving its influence from niche innovator to catalyst in a male contraceptive market projected to grow 15%+ annually. As the "IUD for men" matures, Contraline could redefine contraception, empowering couples with truly shared options.[4]
Contraline has raised $23.7M across 5 funding rounds. Most recently, it raised $7.0M Series A in November 2022.
Contraline has raised $23.7M in total across 5 funding rounds.
Contraline's investors include Cathy Friedman, Abstract Ventures, LAUNCH, Long Journey Ventures, MBX Capital, Bill Smith, Jaffray Woodriff, ATOMS, Vitalize Venture Group, Jason Calacanis, Founders Fund, Graphene Ventures.