Who are LIQ861 Inhaled Treprostinil's main competitors?

Direct comparators (same drug class / molecular target / therapeutic area): Inhaled Epoprostenol and phenylephrine, FLOLAN injection with reformulated diluent, Epalrestat,Mecobalamin, Treprostinil Injectable Product, L606, Ventavis (Iloprost, BAYQ6256).

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Last reviewed 2026-05-16 · How we verify

LIQ861 Inhaled Treprostinil — Competitive Intelligence Brief

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

LIQ861 Inhaled Treprostinil (LIQ861 Inhaled Treprostinil) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Prostacyclin analog. Area: Cardiovascular / Pulmonary Hypertension.

phase 3 Prostacyclin analog Prostacyclin receptor (IP receptor) Cardiovascular / Pulmonary Hypertension Small molecule Live · refreshed every 30 min

Target snapshot

LIQ861 Inhaled Treprostinil (LIQ861 Inhaled Treprostinil) — Liquidia Technologies, Inc.. LIQ861 is an inhaled formulation of treprostinil, a prostacyclin analog that vasodilates pulmonary and systemic blood vessels by activating prostacyclin receptors.

Comparator set (6 drugs)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

Drug	Generic	Sponsor	Phase	Class	Target
LIQ861 Inhaled Treprostinil TARGET	LIQ861 Inhaled Treprostinil	Liquidia Technologies, Inc.	phase 3	Prostacyclin analog	Prostacyclin receptor (IP receptor)
Inhaled Epoprostenol and phenylephrine	Inhaled Epoprostenol and phenylephrine	University Health Network, Toronto	marketed	Prostacyclin analog with alpha-1 adrenergic agonist	Prostacyclin receptor (IP receptor); alpha-1 adrenergic receptor
FLOLAN injection with reformulated diluent	FLOLAN injection with reformulated diluent	GlaxoSmithKline	marketed	Prostacyclin analog	Prostacyclin receptor (IP receptor)
Epalrestat,Mecobalamin	Epalrestat,Mecobalamin	Xiangya Hospital of Central South University	marketed	Prostacyclin analog + Cobalamin derivative combination	Prostacyclin receptor (IP receptor) + Methylcobalamin-dependent enzymes
Treprostinil Injectable Product	Treprostinil Injectable Product	University of Arizona	phase 3	Prostacyclin analogue	Prostacyclin receptor
L606	L606	Liquidia Technologies, Inc.	phase 3	Prostacyclin analog	Prostacyclin receptor (IP receptor)
Ventavis (Iloprost, BAYQ6256)	Ventavis (Iloprost, BAYQ6256)	Bayer	phase 3	Prostacyclin analogue	Prostacyclin receptor

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Prostacyclin analog class)

Liquidia Technologies, Inc. · 2 drugs in this class
AOP Orphan Pharmaceuticals AG · 1 drug in this class
Civi Biopharma, Inc. · 1 drug in this class
GlaxoSmithKline · 1 drug in this class
Ludwig-Maximilians - University of Munich · 1 drug in this class
Lung Biotechnology PBC · 1 drug in this class

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Cite this brief

Drug Landscape (2026). LIQ861 Inhaled Treprostinil — Competitive Intelligence Brief. https://druglandscape.com/ci/liq861-inhaled-treprostinil. Accessed 2026-05-16.

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