Coupons in Part D Programs?

Here's the link to the Drug Channels post on coupons in Part D programs.  Does the CBO now support co-pay cards for Medicare Part D?  They're current banned by they way.  Here's my favorite bit of information:

"For a specialty drug, the average monthly cost per prescription is usually $2,000 to $3,000, so cost sharing can create an enormous financial burden for seniors. To help patients afford these out-of-pocket expenses, pharmaceutical manufacturers offer co-pay offset programs that cover the patient’s portion. Per A New Reality Check on Co- Pay Offset Programs, nearly 70% of biological drugs have co-pay programs, compared with only 44% of traditional brand-name drugs."

I noted my general concerns about coupon programs in the prior post.  Coupons usually exist only for unnecessarily expensive medications where the manufacturer wants to counter the benefit design and formulary management of the payers.