Drug

Riociguat

As of the edition of 20 October 2026, Riociguat is a small molecule: marketed, first approved in 2013 (CA); acts on GUCY1A1, GUCY1A2 and GUCY1B1 and 1 more; US protection ends in 2034.

Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.

The drug

Status
Marketed; latest approval 2014
Kind
Small molecule
Brand name
Adempas
First approved
19 September 2013 (CA)
Approvals on record
15 in 5 regions
Holder of the most recent approval
Bayer; 3 holders in all
Registered trials
50, 8 stopped early
Disease areas
Lungs and airways; Heart and blood vessels; Skin and connective tissue; Inherited and neonatal; Nervous system; Blood and lymph

US protection

US protection ends in 2034.

The last listed US drug-substance patent ends in 2034. The application that gives this date is held by Bayer.

This is the US only, and it is not the date generics or biosimilars can enter.

The exact date and the listings behind it

In the product

25 listings count towards this date. The exact date and each listing are in the product.

See the exact date and the 25 listings behind itRequest access. Nothing is shown until you do.

Companies that need a new molecule because of this drug

1 company-target row on route B because of this drug.

Companies on route B for this drug

In the product

1 company-target row is on route B because of Riociguat.

Targets

GeneProteinUniProt
GUCY1B2Putative guanylate cyclase soluble subunit beta-2O75343
GUCY1A2Guanylate cyclase soluble subunit alpha-2P33402
GUCY1A1Guanylate cyclase soluble subunit alpha-1Q02108
GUCY1B1Guanylate cyclase soluble subunit beta-1Q02153

Registered trials

PhaseTrialsCompletedActiveStopped early
Phase not stated8700
Phase 1121200
Phase 216807
Phase 37520
Phase 47411
All trials50

Who has held its approvals

CompanyRoleYears
BayerApplicant and Lead sponsor of trials2010 to now