Drugmaker Eli Lilly announced on Thursday that its experimental oral GLP-1 drug helped people with type 2 diabetes lose an average of nearly 8% of their body weight after 40 weeks, while also lowering their A1C levels.Lilly, known for injectable drugs like Zepbound for obesity and Mounjaro and Trulicity for diabetes, is among several pharmaceutical companies racing to develop a pill form of GLP-1 medications. So far, the only available GLP-1 pill comes with strict dietary requirements.This news follows Pfizer’s announcement earlier in the week that it is ending development of its own daily obesity pill due to a possible case of liver injury in a trial participant—an issue that resolved after the drug was discontinued.While Novo Nordisk’s Rybelsus was approved by the US FDA in 2020 to treat type 2 diabetes, it must be taken on an empty stomach. Some doctors also note that it may not be as effective as injectable versions and still causes side effects.Unlike Rybelsus, Lilly says its oral medication, orforglipron, requires no dietary restrictions. It’s also the first drug of its kind to complete a Phase 3 trial.In a study involving over 550 people with type 2 diabetes who had inadequate glycemic control through diet and exercise alone, orforglipron—at its highest dose—reduced body weight by an average of 16 pounds (7.9%). The participants continued to lose weight through the end of the 40-week trial.The study also met its primary goal: lowering A1C levels more effectively than a placebo. Participants saw average reductions of 1.3% to 1.6% from a baseline of 8%.GLP-1 drugs work by stimulating the pancreas to release insulin and suppressing the release of another hormone, thereby helping regulate blood sugar. They also reduce hunger and help people feel full longer.Lilly reported that over 65% of participants taking orforglipron reached or maintained an A1C level at or below 6.5%—the threshold for a diabetes diagnosis.Dr. Dan Skovronsky, Lilly’s chief scientific officer, said that even before seeing the data, the mood in the room gave away the positive results. “When I walked into the room to see the results, I saw everybody smiling, so I knew they were about to share good news with me,” he said.According to Skovronsky, liver injuries like the one reported in Pfizer’s trial can be a concern with small-molecule drugs, though they are hard to predict without large-scale testing. “We did not see a liver safety signal with ours, which was a relief,” he said.The side effects of the pill were similar to those of injectable GLP-1s, with upset stomach being the most commonly reported. Most adverse events were mild to moderate. Notably, more than 90% of participants remained on the medication through the duration of the trial—a strong contrast to injectable GLP-1 users, many of whom stop due to side effects.While injectable GLP-1 drugs are highly effective, they can be expensive and complicated to produce. They also require refrigeration and generate more packaging waste. A daily pill could simplify treatment, reduce costs, and offer a more convenient option for patients—especially those who are needle-phobic.“Drugs in tablet form are valuable for a lot of patients for a lot of reasons,” said Dr. Amy Rothberg of the University of Michigan, “particularly those who are needle-phobic. And it probably just simplifies things to just add on another pill, as opposed to taking a shot, which is a little more complex.”Accessibility is key, especially for medications used over long periods. “As clinicians, our priority is to align treatment with our patients’ preferences to support long-term adherence,” said Dr. Priya Jaisinghani, an endocrinologist at NYU Langone Health. “For patients who may find injectable therapies challenging or undesirable, an oral alternative may improve both initiation and continuation of therapy.”Rothberg, who was not involved in the trial, added that she hopes Lilly passes on the cost benefits to patients if the drug is approved. “We could reach many more people then,” she said.The need is urgent: more than 40% of U.S. adults are living with obesity, and 11.6%—or about 38.4 million Americans—have been diagnosed with diabetes, most of whom have type 2 diabetes, according to the CDC.Skovronsky said that Lilly is already manufacturing orforglipron in anticipation of high demand, assuming future trials also yield positive outcomes.Lilly plans to publish the trial results in a peer-reviewed journal and will share more findings later this year, including data from another study focused on weight management. The company is also testing the drug’s potential benefits for high blood pressure and sleep apnea—two conditions that GLP-1 injectables have shown promise in treating.Lilly aims to seek approval for orforglipron as a weight management treatment by the end of the year and plans to submit results related to type 2 diabetes in 2026.