--- title: New Progress Toward a Monthly Birth Control Pill description: Scientists are perfecting a way to turn oral contraceptives into a once-a-month as opposed to a daily pill. canonical: https://time.com/5743428/monthly-birth-control-pill/ author: Alice Park article:opinion: false article:content_tier: free article:published_time: 2019-12-04T19:00:59.000Z article:modified_time: 2026-02-24T07:51:11.698Z article:section: Health og:title: Researchers Make Progress Toward a Monthly Birth Control Pill og:description: Scientists are perfecting a way to turn oral contraceptives into a once-a-month as opposed to a daily pill. og:url: https://time.com/5743428/monthly-birth-control-pill/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production og:image:width: 1200 og:image:height: 675 og:image:alt: TIME og:type: article twitter:card: summary_large_image twitter:title: Researchers Make Progress Toward a Monthly Birth Control Pill twitter:description: Scientists are perfecting a way to turn oral contraceptives into a once-a-month as opposed to a daily pill. twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production --- # Researchers Make Progress Toward a Monthly Birth Control Pill > Sponsored content. 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Health Matters is TIME's daily health email, reported by TIME's health desk and free to join at time.com/newsletters. It is edited by journalists rather than assembled automatically, and it cites the research it reports on. #### Is Health Matters free? Yes. Health Matters is a free daily newsletter from TIME, available at time.com/newsletters. #### Who reads TIME's Health Matters newsletter? Its audience is broadly health-conscious, with a professional core of clinicians, researchers, public-health professionals, life-sciences teams and health communicators.  by [Alice Park](https://time.com/author/alice-park/)  ## Alice Park Senior Correspondent Dec 4, 2019 7:00 PM UTC  by [Alice Park](https://time.com/author/alice-park/)  ## Alice Park Senior Correspondent Dec 4, 2019 7:00 PM UTC [Birth control pills](https://time.com/5106925/birth-control-pills-prevent-cancer/) are among the most effective ways to prevent pregnancy, but only if women faithfully take them every day. Human nature being what it is, nearly half of women admit to missing a pill at least once every three months, and, as a result, about 9% of women on oral contraception become pregnant every year. That number would almost certainly fall if women only had to remember to take the pill once a month or so. That’s why researchers at MIT and Brigham and Women’s Hospital (with support from the Gates Foundation) are trying to create a once-a-month birth control pill. In a[ paper published today (Dec. 4) in _Science Translational Medicine_](http://stm.sciencemag.org), a team led by Robert Langer, who runs one of the world’s largest chemical engineering labs at MIT, and Dr. Giovanni Traverso, a gastroenterologist at Brigham and Women’s Hospital and assistant professor of mechanical engineering at MIT, report on a polymer they designed to survive in the harsh, acidic environment of the human stomach for about 30 days. They loaded that polymer with levonorgestrel, a progestin, which is one of the common components that make up popular birth control pills. In a test with pigs, they found that the monthly pill released about the same amount of levonorgestrel in the blood each day as a daily pill. Currently, long-acting birth control methods that release contraceptives continuously require an invasive procedure to implant, usually on the upper arm, which is a deterrent for some women. Other long-term methods, including [intrauterine](https://time.com/4746242/iud-birth-control/) and intravaginal devices, some of which also release hormones that prevent pregnancy, require insertions and removals to be performed by doctors. A long-acting pill would give women more control over their contraception without the complications of implants and devices. The contraceptive described in this latest study is made up of a gelatin-coated capsule containing a tiny plastic device loaded with the contraceptive drug levonorgestrel. Once in the stomach, the coating dissolves and the plastic device springs open into a six-armed star shape. Each arm has tiny compartments of varying sizes filled with the drug; their different shapes mean different amounts of area exposed to the stomach environment, and that area determines how quickly the compartment dissolves and releases its contents over a three-week period. The technology could also be used to deliver other medications. Already, Langer and his team have tested the device to deliver drugs to treat HIV and malaria in animals, albeit for shorter periods of time — about one to two weeks. Eventually, the team believes, monthly pills built using this technology could provide treatment for diabetes, high blood pressure drugs, Alzheimer’s and more, freeing people from having to remember to take daily medication. The researchers plan to refine the technology and then test it on larger animals. “We see an enormous number of potential applications,” says Langer, who, along with Traverso, founded the company Lyndra Therapeutics, to continue readying the “pill” for human testing. “We are very optimistic and confident that we can get this to humans in coming years,” says Traverso. ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/5743428/monthly-birth-control-pill/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/5743428/monthly-birth-control-pill/"},"headline":"Researchers Make Progress Toward a Monthly Birth Control Pill","datePublished":"2019-12-04T19:00:59.000Z","dateModified":"2026-02-24T07:51:11.698Z","description":"Scientists are perfecting a way to turn oral contraceptives into a once-a-month as opposed to a daily pill","url":"https://time.com/5743428/monthly-birth-control-pill/","keywords":["Reproductive Health","Birth Control","embargoed study"],"thumbnailUrl":"","author":[{"@type":"Person","name":"Alice Park","jobTitle":"Senior Correspondent","url":"https://time.com/author/alice-park/"}],"articleSection":"Health","image":[],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/reproductive-health/","name":"Reproductive Health"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/5743428/monthly-birth-control-pill/","name":"Researchers Make Progress Toward a Monthly Birth Control Pill"}}]}] ```