UNSPSC 51433707: Macitentan

Macitentan is an endothelin receptor antagonist approved for the treatment of pulmonary arterial hypertension.

UNSPSC 51433707 Macitentan, a Commodity code, shows no relevant recent state and local procurement activity. The code nominally identifies a specific endothelin receptor antagonist pharmaceutical used to treat pulmonary arterial hypertension, but the recent state and local opportunities in the source block contain no solicitations for macitentan itself or even targeted pulmonary treatments. Instead, the recent opportunities span medical oxygen cylinder rental, naloxone and drug deactivation systems, generic multi-source pharmaceuticals and OTC products through cooperative purchasing, and BLS/ALS pharmacy supplies and vending systems — none of which reference macitentan as a line item or procurement driver. The opportunities also include vendor networking events, county purchasing-process forums, and reverse trade shows that are informational rather than transactional.

The mismatch between the code's pharmaceutical specificity and the actual work being bought suggests either that macitentan procurement does not occur regularly at the state and local level, or that jurisdictions purchasing it tag opportunities with higher-tier pharmaceutical family or segment codes. Recent activity in adjacent commodity spaces — particularly MMCAP's generic multi-source pharmaceutical RFP (issued January 20, 2026, responses due March 26, 2026) and the City of Tucson Fire Department's BLS/ALS pharmaceuticals and supplies RFP (issued June 24, 2026, responses due June 24, 2026) — shows that state and local buyers procure pharmaceuticals through cooperative purchasing vehicles and direct RFPs, but neither opportunity names specialty pulmonary agents. No state or local jurisdiction appears in the source as a repeat buyer for this specific commodity. Firms pursuing pulmonary pharmaceutical contracts should monitor cooperative purchasing RFPs in the generic and specialty pharmaceutical families rather than this narrow commodity code.