WASHINGTON, DC - APRIL 23: President and Chief Scientific Officer of Regeneron Pharmaceuticals George Yancopoulos (R) speaks alongside U.S. Secretary of Health and Human Services Robert F. Kennedy Jr., Director of the Center for Medicare Chris Klomp and U.S. President Donald Trump during an event on advancing health care affordability in the Oval Office of the White House on April 23, 2026 in Washington, DC. President Trump, promoting his administration's efforts to lower health care costs and address rising premiums, announced a deal with Regeneron Pharmaceuticals to lower certain drug prices sold on TrumpRx.gov in exchange for tariff relief. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - APRIL 23: President and Chief Scientific Officer of Regeneron Pharmaceuticals George Yancopoulos (R) speaks alongside U.S. Secretary of Health and Human Services Robert F. Kennedy Jr., Director of the Center for Medicare Chris Klomp and U.S. President Donald Trump during an event on advancing health care affordability in the Oval Office of the White House on April 23, 2026 in Washington, DC. President Trump, promoting his administration's efforts to lower health care costs and address rising premiums, announced a deal with Regeneron Pharmaceuticals to lower certain drug prices sold on TrumpRx.gov in exchange for tariff relief. (Photo by Alex Wong/Getty Images)

FILE - Tourists walk past a banner with President Donald Trump hanging on the Department of Justice, Feb. 27, 2026, in Washington. (AP Photo/Rahmat Gul, File)

WASHINGTON, DC - APRIL 23: U.S. Secretary of Health and Human Services Robert F. Kennedy Jr. speaks during an event on advancing health care affordability in the Oval Office of the White House on April 23, 2026 in Washington, DC. President Trump, promoting his administration's efforts to lower health care costs and address rising premiums, announced a deal with Regeneron Pharmaceuticals to lower certain drug prices sold on TrumpRx.gov in exchange for tariff relief. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - APRIL 23: U.S. Secretary of Health and Human Services Robert F. Kennedy Jr. speaks during an event on advancing health care affordability in the Oval Office of the White House on April 23, 2026 in Washington, DC. President Trump, promoting his administration's efforts to lower health care costs and address rising premiums, announced a deal with Regeneron Pharmaceuticals to lower certain drug prices sold on TrumpRx.gov in exchange for tariff relief. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - APRIL 23: U.S. Secretary of Health and Human Services Robert F. Kennedy Jr. speaks during an event on advancing health care affordability in the Oval Office of the White House on April 23, 2026 in Washington, DC. President Trump, promoting his administration's efforts to lower health care costs and address rising premiums, announced a deal with Regeneron Pharmaceuticals to lower certain drug prices sold on TrumpRx.gov in exchange for tariff relief. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - APRIL 23: U.S. Secretary of Health and Human Services Robert F. Kennedy Jr. (C) speaks alongside U.S. Commerce Secretary Howard Lutnick (L) and U.S. President Donald Trump during an event on advancing health care affordability in the Oval Office of the White House on April 23, 2026 in Washington, DC. President Trump, promoting his administration's efforts to lower health care costs and address rising premiums, announced a deal with Regeneron Pharmaceuticals to lower certain drug prices sold on TrumpRx.gov in exchange for tariff relief. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - APRIL 23: Administrator for the Centers for Medicare & Medicaid Services Dr. Mehmet Oz (C) speaks alongside Food and Drug Administration Commissioner Marty Makary (L) and U.S. Commerce Secretary Howard Lutnick during an event on advancing health care affordability in the Oval Office of the White House on April 23, 2026 in Washington, DC. President Trump, promoting his administration's efforts to lower health care costs and address rising premiums, announced a deal with Regeneron Pharmaceuticals to lower certain drug prices sold on TrumpRx.gov in exchange for tariff relief. (Photo by Alex Wong/Getty Images)