CMS decided against reversing a Trump-era policy the lets Obamacare plans prevent brand drug makers’ copay assistance from counting toward enrollees’ deductibles, even when no generics are available, despite a patient campaign against so-called copay accumulators and pressure from Congress. Medicare bans copay coupons, but they’re allowed in the commercial market, including Affordable Care Act exchange plans. Insurers say the coupons encourage high drug prices, so they often undermine the coupons with copay accumulators, a policy of not counting the...