Nasal Drug Delivery

SNBL’s nasal drug delivery platform is a proprietary system consisting of powder carrier technology and delivery device technology.

Expertise in Nasal Delivery

3D Nasal Cast Model


SNBL Enters into Definitive Agreement to Acquire Satsuma Pharmaceuticals, Inc.

SNBL today announced that it has entered into a definitive agreement to acquire Satsuma Pharmaceuticals, Inc. (“Satsuma”, San Francisco, CA, USA) (Nasdaq: STSA).


Satsuma has been developing STS1011), a migraine drug based on SNBL’s proprietary intranasal delivery platform technology and has completed Phase III clinical trials and submitted a New Drug Application (NDA) to the U.S. Food and Drug Administration (“FDA”) in March 2023. 


With the acquisition of Satsuma, SNBL will acquire exclusive worldwide rights to develop, manufacture and commercialize STS101, thereby strengthening the fundamental technology in SNBL's translational research (TR) business.


For more information, please see the details below.

SNBL Enters into Definitive Agreement to Acquire Satsuma Pharmaceuticals, Inc.



1) STS101

There are currently an estimated 39 million people in the U.S. suffering from migraine headaches, and the market for migraine therapeutics is reported to have reached $16 billion in 2017 in the US alone. A large number of patients are relatively young, between 20 and 40 years old, and there is an existing need for quick relief of potentially-disabling headaches. DHE is effective for non-responders of triptans, which are currently first-in-line therapies; however, the current liquid nasal spray is slow to absorb, taking at least 30 minutes to take effect, and the product is regarded to be unreliable due to its variability in absorption and the relatively low blood concentrations it achieves. The STS101, Nasal DHE product using SNBL's nasal delivery technology, enables fast and adequate absorption and is expected to meet the needs of patients.