Although it’s a make-or-break market for many novel drugs, the U.S. is still testing the waters with biosimilars to some extent. That’s expected to change when at least seven biosimilars, including an interchangeable, referencing Abbvie Inc.’s Humira (adalimumab) are set to launch in the U.S. within the first seven months of next year. Next week, BioWorld will look at the significance of that looming competition and how the global biosimilars market is evolving amid a changing landscape of players, policies and pipelines.

Efforts at Abbvie Inc. to selectively target voltage-gated sodium channel subunit alpha Nav1.7 to treat pain led to the discovery of quinoline and quinolone agents and, through structure-activity relationship studies, the candidate product ABBV-318. While Nav1.7 potency could be achieved with earlier compounds, efforts were required to improve characteristics including hERG activity, pharmacokinetics and selectivity over Nav1.5, yielding compounds which blocked Nav1.7 as well as another target for treating pain, Nav1.8.

As expected, the U.S. House of Representatives passed, on a 220-207 party-line vote, a legislative package Aug. 12 that, for the first time, allows Medicare to directly negotiate some prescription drug prices, while imposing severe penalties and an excise tax on companies that refuse to negotiate or don’t comply with the government price.

Within a few weeks, government price negotiations for some prescription drugs, as well as limits on annual price increases, could be the law of the land in the U.S. With the Senate passing a slimmed-down version of H.R. 5376 through reconciliation Aug. 7, the House is expected to make a brief return Friday from its August recess to vote on the changes and conference the differences between its bill and the Senate version. Then it’s on to the president’s desk for the signature that will enact the package of health care, tax and climate provisions.