Recent Updates
Recently added Catalysts

LIQ861

Phase 2

Raynaud's Phenomenon Secondary to Systemic Sclerosis | Small molecule | Immunology |Liquidia Corporation|Trials Updated: Aug 7, 2026

LIQ861 development status

Highest phase Phase 2
Registered trials 1 across 1 sponsor since Nov 2023

LIQ861 target and mechanism

Molecular targetnull
Target classNull
ModalitySmall molecule

Also known as LIQ861 (treprostinil) inhalation powder - Dose Titration Arm, LIQ861- Dose Titration Arm, LIQ861 (treprostinil) inhalation powder - fixed dose arm, LIQ861- fixed dose arm

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment75

FDA Designations

No designations recorded

LIQ861 clinical trials

LIQ861 · 1 trial · 1 indication

Phase 2 1
NCT07748000A Study of LIQ861 (Inhaled Treprostinil) in Adults With Systemic Sclerosis Who Have Symptomatic Raynaud's Phenomenon AttacksRaynaud's Phenomenon Secondary to Systemic Sclerosis
NOT YET_RECRUITING75 Analytics
PHASE2NOT YET_RECRUITING
A Study of LIQ861 (Inhaled Treprostinil) in Adults With Systemic Sclerosis Who Have Symptomatic Raynaud's Phenomenon Attacks
Raynaud's Phenomenon Secondary to Systemic SclerosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Participant incidence of tolerated dose(s) of LIQ861 defined as a dose level or dose regimen at which ≥80% of participants complete the Treatment Period with ≥80% compliance without permanent discontinuation of LIQ861 due to a TEAE
21 days
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm 1: LIQ861 Dose Titration ArmEXPERIMENTAL -
Arm 2: LIQ861 Fixed DoseEXPERIMENTAL -

Interventions

NameTypeDescription
LIQ861 (treprostinil) inhalation powder - Dose Titration ArmCOMBINATION_PRODUCTTreprostinil inhalation powder supplied as capsules in strengths of 26.5, 53, 79.5, and 106 mcg, administered by oral inhalation QID (approximately 3-4 hours apart during waking hours) for 21 days using the RS00 Model 8 Monodose DPI
LIQ861 (treprostinil) inhalation powder - fixed dose armCOMBINATION_PRODUCTTreprostinil inhalation powder supplied as 26.5 mcg capsules administered by oral inhalation QID (approximately 3-4 hours apart during waking hours) for 21 days using the RS00 Model 8 Monodose DPI
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Male or female ≥18 years of age * Classification of SSc per the 2013 ACR/EULAR criteria. * Diagnosis or history of Raynaud's phenomenon * Minimum of 12 (maximum 100) symptomatic RP attacks documented in the ePRO diary over ≥4 separate days Exclusion Criteria: * ≥3 digital ul...

Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

MEDIUMAug 7, 2026NCT07748000lastUpdatePostDate: changed
MEDIUMAug 7, 2026NCT07748000lastUpdatePostDate: changed
LOWAug 5, 2026NCT07748000NEW_TRIAL: changed

Frequently asked questions about LIQ861

What is LIQ861 used for?

LIQ861 is being studied for the treatment of Raynaud's phenomenon secondary to systemic sclerosis in adults. The investigational therapy is intended for patients who experience symptomatic Raynaud's phenomenon attacks, which are episodes of reduced blood flow to the fingers and toes that occur as a complication of systemic sclerosis.

Who is developing LIQ861?

LIQ861 is being developed by Liquidia Corporation, which trades on the Nasdaq under the ticker symbol LQDA. The company is evaluating the therapy in adults with systemic sclerosis who have symptomatic Raynaud's phenomenon attacks.

What phase is LIQ861 in?

LIQ861 is in Phase 2 clinical development. It is an investigational therapy and has not been approved by the FDA. The Phase 2 program is evaluating the drug in adults with Raynaud's phenomenon secondary to systemic sclerosis.

What clinical trials is LIQ861 in?

LIQ861 is being evaluated in a single Phase 2 trial, NCT07748000, titled A Study of LIQ861 (Inhaled Treprostinil) in Adults With Systemic Sclerosis Who Have Symptomatic Raynaud's Phenomenon Attacks. The trial is not yet recruiting, is randomized and controlled, and plans to enroll 75 participants aged 18 years and older.

Is LIQ861 the same as treprostinil inhalation powder?

Yes. LIQ861 is an inhaled treprostinil powder, and the trial listing refers to it as LIQ861 (treprostinil) inhalation powder. The study includes a dose titration arm and a fixed dose arm, which appear in alternative names for the asset such as LIQ861 dose titration arm and LIQ861 fixed dose arm.

How is the LIQ861 Phase 2 trial designed?

The Phase 2 study NCT07748000 is a randomized, controlled trial of LIQ861 in adults with systemic sclerosis who have symptomatic Raynaud's phenomenon attacks. It is not double blinded, is not biomarker selected, does not enroll healthy volunteers, and plans to enroll 75 participants of any sex aged 18 years and older.