The Supreme Court unanimously rejected calls to restrict access to mifepristone, one of the two drugs used in medication abortion, in a Thursday morning ruling.

The ruling is a win for abortion-rights groups, who believe the case was brought to the Supreme Court by a politically motivated anti-choice group that had no scientific-based evidence for rolling back access to mifepristone.

The ruling in FDA v. Alliance for Hippocratic Medicine , written by Justice Brett Kavanaugh, rejected the plaintiffs on standing. Justice Clarence Thomas filed a concurring opinion.

Several pro-life doctors and associations sued FDA, arguing that FDAs actions violated the Administrative Procedure Act. But the plaintiffs do not prescribe or use mifepristone. And FDA is not requiring them to do or refrain from doing anything, Kavanaugh wrote .

Rather, the plaintiffs want FDA to make mifepristone more difficult for other doctors to prescribe and for pregnant women to obtain, he continued. Under Article III of the Constitution, a plaintiffs desire to make a drug less available for others does not establish standing to sue. Nor do the plaintiffs other standing theories suffice. Therefore, the plaintiffs lack standing to challenge FDAs actions.

The ruling is not surprising given what happened during March oral arguments. A majority of the justices, including some conservatives, appeared highly skeptical of whether Alliance for Hippocratic Medicine could even bring the case.

Plaintiffs are required to show theyve suffered real harm in order to obtain standing to sue, and from the moment arguments began, the justices homed in on whether the group and specifically, the doctors cited as examples in its briefs met that bar. Many of the questions asked during arguments suggested that even the courts most conservative justices saw the alliances standing argument as tenuous at best.

Alliance for Hippocratic Medicine, a collection of five anti-abortion medical groups , had claimed that the Food and Drug Administration overlooked safety issues when it loosened the rules for prescribing the abortion drug in 2016 and again in 2021, amid the COVID-19 pandemic. The anti-abortion group wanted to prohibit mifepristone from being sent through the mail or distributed at large pharmacy chains, among other restrictions.

We recognize that many citizens, including the plaintiff doctors here, have sincere concerns about and objections to others using mifepristone and obtaining abortions, the ruling states. But citizens and doctors do not have standing to sue simply because others are allowed to engage in certain activities at least without the plaintiffs demonstrating how they would be injured by the governments alleged underregulation of others.

Although the ruling is a win for pro-choice groups, the ruling does not outright protect mifepristone. The decision still leaves the door open for future attacks on medication abortion, either through copycat lawsuits or continued litigation in U.S. District Court Judge Matthew Kacsmaryks courtroom.

Kacsmaryk, a far-right Donald Trump appointee well-known for his anti-abortion views , is the federal judge who ruled last year that the FDA unlawfully approved mifepristone when it first went to market over two decades ago. After the Supreme Court took the case, Kacsmaryk allowed attorneys general from Idaho, Kansas and Missouri to be added as plaintiffs to the case. Those officials have suggested they will continue litigating the case.

President Joe Biden released a statement in response to the ruling, writing that mifepristone and medication abortion remain available and approved across the country. Todays decision does not change the fact that the fight for reproductive freedom continues, Biden wrote. It does not change the fact that the Supreme Court overturned Roe v. Wade two years ago, and women lost a fundamental freedom. It does not change the fact that the right for a woman to get the treatment she needs is imperiled if not impossible in many states.

The president also committed to calling on Congress to restore federal abortion protections.

Democrats and pro-choice groups were relieved by the courts decision, but cautioned not to celebrate the ruling as a huge win.

This decision was based not on the merits but the lack of standing we are not yet out of the woods. This shouldnt be a decision women are forced to fear year after year, case after case, Senate Majority Leader Chuck Schumer (D-N.Y.) said in a statement.

Nancy Northup, the president and CEO at the Center for Reproductive Rights, said she is both relieved and angry about the courts decision because it simply maintains the status quo.

This case has no basis in fact or law and the lower courts should never have let it go forward. The FDAs rulings on medication abortion have been based on science, Northup said in a statement. Unfortunately, the attacks on abortion pills will not stop here the anti-abortion movement sees how critical abortion pills are in this post-Roe world, and they are hell bent on cutting off access. In the end, this ruling is not a win for abortion it just maintains the status quo, which is a dire public health crisis in which 14 states have criminalized abortion.

In 2022, the Supreme Court overturned Roe v. Wade, setting off a wave of abortion bans across the U.S. But abortion rates have generally stayed the same in large part because these bans did not stop people from ordering pills through the mail.

Mifepristone is prescribed as part of a two-drug regimen alongside misoprostol for abortion and miscarriage care. The drug is also used to treat other medical conditions, including Cushing syndrome and hyperglycemia, or high blood glucose, as well as other diseases . The FDA approved mifepristone in 2000, and the medication has since been used by nearly 6 million people in the U.S., according to the department.

The COVID-19 pandemic led to government regulators loosening rules around mifepristone prescriptions in 2021, sparking the rise of online pharmacies in the U.S. that ship abortion pills directly to patients homes. Since the repeal of Roe, nearly 20 states have enacted abortion restrictions, making access to abortion pills via mail critically important.

Mifepristone and misoprostol are more than 95% effective and pose fewer risks than Tylenol , and over 100 studies have corroborated their safety and effectiveness. Medication abortion accounts for 63% of abortion care in the U.S., according to a study from the reproductive rights group the Guttmacher Institute.

Major medical groups have repeatedly said that mifepristone should be accessible to patients across the country. The drug is a safe, effective and important component of treatment and management for early pregnancy loss ... and induced abortion, the American Medical Association and the American College of Obstetricians and Gynecologists wrote in a letter to the FDA, in response to the initial Alliance for Hippocratic Medicine lawsuit filed in 2022.

This case was a near miss for the science and medicine community and it wont be the last attack, Haydee Morales, interim president at the National Institute for Reproductive Health, said in a statement. This should be a warning to all of us: if anti-abortion operatives came this close to undermining long-standing approvals for mifepristone, what will come next?