The legislation, a priority for congressional leaders in the lame-duck session, seeks to streamline how federal regulators assess the safety of new treatments and let them reach markets more quickly. It provides new money for the National Institutes of Health and Food and Drug Administration, including funding for the White House’s cancer moonshot and precision medicine initiatives.

The bill also would seek $1 billion in grants to states to fight opioid abuse.

Rep. Fred Upton, R-Mich., who chairs the House Energy and Commerce Committee, announced details of the draft bill Saturday along with Sen. Lamar Alexander, R-Tenn., chair of the Senate Committee on Health, Education, Labor and Pensions. They described the legislation as an “innovation game-changer.”

“America’s patients are waiting on us,” the two lawmakers said in a statement.

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Republicans said the measure was final. But one aide to Democrats — they are the minority party in both the House and Senate — said negotiations were continuing.

The draft bill includes several provisions pushed in part by Democrats aimed at addressing mental health issues, such as increasing access to treatment for children and on college campuses.

A version of the bill previously passed the House but has been on hold for a year as Democrats and Republicans sparred over levels of NIH spending. The latest draft bill would provide $4.8 billion to NIH and $500 million to the FDA.

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It would be paid at least in part by selling oil from the nation’s Strategic Petroleum Reserve.

Sen. Patty Murray, the top Democrat on the Senate panel, had pushed for a broader bill that included provisions on opioid-addiction treatment as well as mental health reform.

Senate Majority Leader Mitch McConnell, R-Ky., has said once the House acts on the bill the Senate will follow before the end of December.