We previously blogged about Dr. Reddy’s IPRs filed against MDS patents covering Celgene’s Revlimid®.  Those IPRs attracted considerable attention because they were, for better or worse, one of the few data-points within the Revlimid® patent skirmishes we are guaranteed to see before the Bristol transaction closes.  The Lotus IPR attacking one of Celgene’s multiple myeloma patent is another datapoint.  The PTAB’s decision on whether to institute the IPR is due March 18.  How much does Lotus IPR really matter?

Last week, we wrote about milestones to watch for in Celgene’s ($CELG) Revlimid® patent landscape in 2019 that could potentially impact the Bristol Myers ($BMY) transaction.  One data-point that investors were anticipating were institution decisions in three petitions for inter partes review (IPRs) filed by Dr. Reddy’s.  This week, the PTAB denied institution of all three IPRs.  How will those decisions read-through to the overall Revlimid® patent landscape?

On August 3, Dr. Reddy’s filed three petitions for inter partes review (IPR) against three patents owned by Celgene and listed in the Orange Book for Revlimid®.  Does this indicate that Celgene and Dr. Reddy’s are close to a settlement?  If not, what are the take-aways?