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Liquidia Technologies clinical trials

Source: ClinicalTrials.gov, U.S. National Library of Medicine and the EU Clinical Trials Information System (CTIS) — current trials in our USA, UK and EU (CTIS) registers with Liquidia Technologies as lead sponsor. Synced 26 Sep 2026
6Current trials
2Recruiting now
1Drug in these trials
3Trial registers
Maintained by Sreepriya Prasannan
MSc Digital Transformation of Life Sciences (Innopharma Education / Griffith College); MSc & BSc Botany HSE Spark Ignite 2026 — Top 14 finalist
Compiled from ClinicalTrials.gov and CTIS registry records · Last verified · Editorial standards
At a glance

Liquidia Technologies is the lead sponsor of 6 current clinical trials in our USA, UK and EU (CTIS) registers. 2 are recruiting patients now. The most common phase is Phase 3. The drugs named most often in its trials are Treprostinil. The most-studied condition is Pulmonary Hypertension Due to Lung Disease (Disorder).

ClinicalTrials.gov trials by status

  • Recruiting240%
  • Not yet open120%
  • Active, closed240%

Trials by phase

  • Phase 3360%
  • Phase 4120%
  • Observational120%
01

Clinical trials sponsored by Liquidia Technologies

5 on ClinicalTrials.gov
StudyPhaseStatusStartRegisters
A Phase 3 Study to Evaluate the Safety and Efficacy L606 in Participants With PH-ILD
NCT07285655 · ClinicalTrials.gov ↗ · Pulmonary Hypertension Due to Lung Disease (Disorder)
Phase 3 Recruiting 2026-04 UK, USA
An Open-Label ProSpective MultiCENTer Study to Evaluate Safety and Tolerability of Dry Powder Inhaled Treprostinil in PH
NCT06129240 · ClinicalTrials.gov ↗ · Pulmonary Hypertension, Interstitial Lung Disease
Observational Recruiting 2023-12 USA
A Study of Inhaled Treprostinil (LIQ861) in Adults With Pulmonary Arterial Hypertension Transitioning From Oral Selexipag
NCT07759804 · ClinicalTrials.gov ↗ · Pulmonary Arterial Hypertension (PAH)
Phase 4 Not yet open 2026-09 USA
Extension Study for Participants in LIQ861 Trials to Evaluate the Long-term Safety of Dry Powder Inhalation of Treprostinil
NCT03992755 · ClinicalTrials.gov ↗ · Primary Pulmonary Hypertension
Phase 3 Active, closed 2019-07 USA
A Phase 3 Study to Evaluate the Safety and Tolerability of L606 in Subjects With PAH or PH-ILD
NCT04691154 · ClinicalTrials.gov ↗ · Pulmonary Arterial Hypertension, Pulmonary Hypertension Due to Lung Diseases
Phase 3 Active, closed 2021-08 USA

Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Titles and statuses are copied from the registry as published.

02

Liquidia Technologies in the EU trials register (CTIS)

1 trial

Authorised or ongoing trials in the EU Clinical Trials Information System with Liquidia Technologies as sponsor. Some are the same study as a ClinicalTrials.gov record above; the two registries share no common ID. Trials with a site in Ireland are listed first.

StudyPhaseStatusCountries
A Phase 3, Multicenter, Randomized, Double-Blinded, Placebo-Controlled Study to Evaluate the Safety and Efficacy of L606 (Treprostinil Liposome Inhalation Suspension) in Participants with Pulmonary Hypertension Associated with Interstitial Lung Disease (WHO Group 3)
2024-517943-29-00 · CTIS ↗ · Respiratory Tract Diseases
Phase 3 Ongoing Latvia, Germany, Italy + 7 more
03

Drugs in Liquidia Technologies trials

1 compound

Drugs and biologicals named as interventions in these trials, with the number of this sponsor's trials that name each one. Placebos and generic comparators are excluded.

04

Conditions in Liquidia Technologies trials

7 conditions
Pulmonary Hypertension Due to Lung Disease (Disorder)1Primary Pulmonary Hypertension1Pulmonary Arterial Hypertension (PAH)1Pulmonary Hypertension1Interstitial Lung Disease1Pulmonary Arterial Hypertension1Pulmonary Hypertension Due to Lung Diseases1
05

By trial register

RegisterTrialsRecruiting
Clinical trials in USA52
Clinical trials in UK11
EU register (CTIS)1—

A trial with sites in more than one country appears in each of those registers.

06

Questions about Liquidia Technologies trials

How many clinical trials does Liquidia Technologies sponsor?

Liquidia Technologies is the lead sponsor of 5 current trials on ClinicalTrials.gov in our USA and UK registers, and 1 authorised or ongoing trial in the EU register (CTIS), as of the registry sync on 26 September 2026. Completed and withdrawn studies are not counted.

Are Liquidia Technologies trials recruiting?

Yes. 2 of its 5 ClinicalTrials.gov trials are recruiting. Eligibility and site contacts are on each trial's record. Only the study team can confirm whether a patient is eligible.

Which drugs is Liquidia Technologies testing?

Its current trials name 1 drug or biological as interventions. The most frequent are Treprostinil (1). The number in brackets is how many of its trials name each drug.

Where does this information come from?

Every trial, status, phase and condition on this page is copied from public ClinicalTrials.gov and EU CTIS records by a daily sync, grouped by the sponsor name each registry records. It says nothing about the organisation beyond its registered trials, and it is not medical advice.

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How this page is built

Everything on this page is copied from public registry records — it is not written from memory, and nothing here describes the organisation beyond its registered trials. Each trial links to its own record so you can check it yourself.

This page is built automatically: a daily sync job reads the registry records behind our trial registers and groups every current trial by its lead sponsor name, ignoring legal-form suffixes such as Inc. or Ltd. A small, hand-checked list joins the same organisation's different registry names (for example its EU legal entity). There is no AI drafting and no per-sponsor editorial pass. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The the registries data on this page was last retrieved on 26 Sep 2026.

Please verify before you rely on this. This page is general information for life-science and pharmaceutical professionals. It is not medical advice, and it has not been reviewed by a clinician — our editorial team holds life-science qualifications, not clinical ones. It is not exhaustive and may not reflect the most recent label change. Always check the official prescribing information (US Prescribing Information or EU SmPC) and speak to your doctor or pharmacist before acting on anything here. Drugs in the same class are not automatically interchangeable, and approvals, brand names and indications differ between the US, the EU/Ireland (EMA/HPRA) and other regions. Spotted an error? Tell us — we correct promptly and log it.