Trial Outcomes & Findings for Investigation of the Safety and Pharmacology of Dry Powder Inhalation of Treprostinil (NCT NCT03399604)

NCT ID: NCT03399604

Last Updated: 2024-07-30

Results Overview

There were two treatment arms analyzed for events in the study. All subjects that participated in the PK study were part of the transition group and not analyzed separately for adverse events. Treatment-Emergent Adverse Events and Serious Adverse Events will be grouped by MedDRA System Organ Class, dose level, time on drug, and relationship to dose titration

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

121 participants

Primary outcome timeframe

Baseline, Week 2, Month 1, Month 2 Visits, with bimonthly follow up for up to 16 months.

Results posted on

2024-07-30

Participant Flow

Of the 146 subjects screened for the study, 121 (55 Transition Group, 66 Add On Group) were enrolled.

Participant milestones

Participant milestones
Measure
LIQ861 Inhaled Treprostinil
LIQ861 inhaled treprostinil at capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg. LIQ861 will be administered using the RS00 Model 8 dry powder inhalation (DPI) device (Plastiape S.p.A.; Osnago, Italy) at dose levels of 25 μg to 150 μg treprostinil QID in individual patients. LIQ861 Inhaled Treprostinil: LIQ861 bulk powder is generated from a treprostinil/excipient matrix from which particles of precise size and shape are created and filled into a hydroxypropyl methylcellulose (HPMC) capsule (size 3). LIQ861 capsules are provided in capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg treprostinil.
Overall Study
STARTED
121
Overall Study
COMPLETED
92
Overall Study
NOT COMPLETED
29

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Investigation of the Safety and Pharmacology of Dry Powder Inhalation of Treprostinil

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
LIQ861 Inhaled Treprostinil
n=121 Participants
LIQ861 inhaled treprostinil at capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg. LIQ861 will be administered using the RS00 Model 8 dry powder inhalation (DPI) device (Plastiape S.p.A.; Osnago, Italy) at dose levels of 25 μg to 150 μg treprostinil QID in individual patients. LIQ861 Inhaled Treprostinil: LIQ861 bulk powder is generated from a treprostinil/excipient matrix from which particles of precise size and shape are created and filled into a hydroxypropyl methylcellulose (HPMC) capsule (size 3). LIQ861 capsules are provided in capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg treprostinil.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
95 Participants
n=5 Participants
Age, Categorical
>=65 years
26 Participants
n=5 Participants
Age, Continuous
54.2 years
STANDARD_DEVIATION 14.33 • n=5 Participants
Sex: Female, Male
Female
99 Participants
n=5 Participants
Sex: Female, Male
Male
22 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
20 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
101 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
n=5 Participants
Race (NIH/OMB)
Asian
6 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
15 Participants
n=5 Participants
Race (NIH/OMB)
White
96 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
United States
121 participants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline, Week 2, Month 1, Month 2 Visits, with bimonthly follow up for up to 16 months.

Population: The Safety Population included all subjects who received at least 1 inhalation of LIQ861.

There were two treatment arms analyzed for events in the study. All subjects that participated in the PK study were part of the transition group and not analyzed separately for adverse events. Treatment-Emergent Adverse Events and Serious Adverse Events will be grouped by MedDRA System Organ Class, dose level, time on drug, and relationship to dose titration

Outcome measures

Outcome measures
Measure
LIQ861 Inhaled Treprostinil
n=121 Participants
LIQ861 inhaled treprostinil at capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg. LIQ861 will be administered using the RS00 Model 8 dry powder inhalation (DPI) device (Plastiape S.p.A.; Osnago, Italy) at dose levels of 25 μg to 150 μg treprostinil QID in individual patients. LIQ861 Inhaled Treprostinil: LIQ861 bulk powder is generated from a treprostinil/excipient matrix from which particles of precise size and shape are created and filled into a hydroxypropyl methylcellulose (HPMC) capsule (size 3). LIQ861 capsules are provided in capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg treprostinil.
Incidence of Treatment-Emergent Adverse Events and Serious Adverse Events
121 Participants

Adverse Events

LIQ861 Add-On

Serious events: 15 serious events
Other events: 66 other events
Deaths: 0 deaths

Tyvaso Transition

Serious events: 6 serious events
Other events: 55 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
LIQ861 Add-On
n=121 participants at risk
LIQ861 inhaled treprostinil at capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg. LIQ861 will be administered using the RS00 Model 8 dry powder inhalation (DPI) device (Plastiape S.p.A.; Osnago, Italy) at dose levels of 25 μg to 150 μg treprostinil QID in individual patients. LIQ861 Inhaled Treprostinil: LIQ861 bulk powder is generated from a treprostinil/excipient matrix from which particles of precise size and shape are created and filled into a hydroxypropyl methylcellulose (HPMC) capsule (size 3). LIQ861 capsules are provided in capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg treprostinil.
Tyvaso Transition
n=121 participants at risk
LIQ861 inhaled treprostinil at capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg. LIQ861 will be administered using the RS00 Model 8 dry powder inhalation (DPI) device (Plastiape S.p.A.; Osnago, Italy) at dose levels of 25 μg to 150 μg treprostinil QID in individual patients. LIQ861 Inhaled Treprostinil: LIQ861 bulk powder is generated from a treprostinil/excipient matrix from which particles of precise size and shape are created and filled into a hydroxypropyl methylcellulose (HPMC) capsule (size 3). LIQ861 capsules are provided in capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg
Respiratory, thoracic and mediastinal disorders
Acute Respiratory Failure
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.83%
1/121 • Number of events 1 • 1 year, 8 months
Cardiac disorders
Cardiac Failure
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.83%
1/121 • Number of events 1 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Pulmonary Arterial Hypertension
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.83%
1/121 • Number of events 1 • 1 year, 8 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Ovarian Neoplasm
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Alveolitis Allergic
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Cardiac disorders
Atrial Fibrillation
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
General disorders
Pyrexia
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Hypoxia
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Diaphragmatic Paralysis
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Infections and infestations
Pneumonia
1.7%
2/121 • Number of events 2 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Dyspnoea
1.7%
2/121 • Number of events 2 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Nervous system disorders
Syncope
1.7%
2/121 • Number of events 2 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Vascular disorders
Hypertensive Crisis
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Infections and infestations
Viral Infection
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Infections and infestations
Sepsis
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Renal and urinary disorders
Acute Kidney Injury
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Nervous system disorders
Seizure
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Infections and infestations
Parainfluenzae Virus Infection
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Respiratory Failure
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Cardiac disorders
Acute Myocardial Infarction
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Injury, poisoning and procedural complications
Open Fracture
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
General disorders
Oedema Peripheral
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Nervous system disorders
Carotid Artery Stenosis
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Metabolism and nutrition disorders
Fluid Overload
0.83%
1/121 • Number of events 1 • 1 year, 8 months
0.00%
0/121 • 1 year, 8 months
Infections and infestations
Overgrowth Bacterial
0.00%
0/121 • 1 year, 8 months
0.83%
1/121 • Number of events 1 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Pulmonary Embolism
0.00%
0/121 • 1 year, 8 months
1.7%
2/121 • Number of events 2 • 1 year, 8 months
Gastrointestinal disorders
Gastrointestinal Hemorrhage
0.00%
0/121 • 1 year, 8 months
0.83%
1/121 • Number of events 1 • 1 year, 8 months

Other adverse events

Other adverse events
Measure
LIQ861 Add-On
n=121 participants at risk
LIQ861 inhaled treprostinil at capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg. LIQ861 will be administered using the RS00 Model 8 dry powder inhalation (DPI) device (Plastiape S.p.A.; Osnago, Italy) at dose levels of 25 μg to 150 μg treprostinil QID in individual patients. LIQ861 Inhaled Treprostinil: LIQ861 bulk powder is generated from a treprostinil/excipient matrix from which particles of precise size and shape are created and filled into a hydroxypropyl methylcellulose (HPMC) capsule (size 3). LIQ861 capsules are provided in capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg treprostinil.
Tyvaso Transition
n=121 participants at risk
LIQ861 inhaled treprostinil at capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg. LIQ861 will be administered using the RS00 Model 8 dry powder inhalation (DPI) device (Plastiape S.p.A.; Osnago, Italy) at dose levels of 25 μg to 150 μg treprostinil QID in individual patients. LIQ861 Inhaled Treprostinil: LIQ861 bulk powder is generated from a treprostinil/excipient matrix from which particles of precise size and shape are created and filled into a hydroxypropyl methylcellulose (HPMC) capsule (size 3). LIQ861 capsules are provided in capsule strengths of 25 μg, 50 μg, 75 μg and 100 μg
Respiratory, thoracic and mediastinal disorders
Cough
33.9%
41/121 • Number of events 41 • 1 year, 8 months
19.0%
23/121 • Number of events 23 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Dysponea
8.3%
10/121 • Number of events 10 • 1 year, 8 months
10.7%
13/121 • Number of events 13 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Throat irritation
11.6%
14/121 • Number of events 14 • 1 year, 8 months
6.6%
8/121 • Number of events 8 • 1 year, 8 months
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
5.0%
6/121 • Number of events 6 • 1 year, 8 months
1.7%
2/121 • Number of events 2 • 1 year, 8 months
Nervous system disorders
Headache
19.0%
23/121 • Number of events 23 • 1 year, 8 months
14.9%
18/121 • Number of events 18 • 1 year, 8 months
Nervous system disorders
Dizziness
10.7%
13/121 • Number of events 13 • 1 year, 8 months
8.3%
10/121 • Number of events 10 • 1 year, 8 months
Infections and infestations
Upper Respiratory Tract Infection
14.9%
18/121 • Number of events 18 • 1 year, 8 months
8.3%
10/121 • Number of events 10 • 1 year, 8 months
Infections and infestations
Nasopharyngitis
5.0%
6/121 • Number of events 6 • 1 year, 8 months
5.0%
6/121 • Number of events 6 • 1 year, 8 months
Infections and infestations
Urinary Tract Infection
5.0%
6/121 • Number of events 6 • 1 year, 8 months
1.7%
2/121 • Number of events 2 • 1 year, 8 months
General disorders
Chest Discomfort
5.8%
7/121 • Number of events 7 • 1 year, 8 months
9.1%
11/121 • Number of events 11 • 1 year, 8 months
General disorders
Fatigue
8.3%
10/121 • Number of events 10 • 1 year, 8 months
3.3%
4/121 • Number of events 4 • 1 year, 8 months
General disorders
Pyrexia
5.8%
7/121 • Number of events 7 • 1 year, 8 months
0.83%
1/121 • Number of events 1 • 1 year, 8 months
Musculoskeletal and connective tissue disorders
Arthralgia
5.0%
6/121 • Number of events 6 • 1 year, 8 months
0.83%
1/121 • Number of events 1 • 1 year, 8 months
Vascular disorders
Flushing
5.8%
7/121 • Number of events 7 • 1 year, 8 months
2.5%
3/121 • Number of events 3 • 1 year, 8 months
Gastrointestinal disorders
Diahrrea
12.4%
15/121 • Number of events 15 • 1 year, 8 months
5.8%
7/121 • Number of events 7 • 1 year, 8 months
Gastrointestinal disorders
Nausea
5.0%
6/121 • Number of events 6 • 1 year, 8 months
5.0%
6/121 • Number of events 6 • 1 year, 8 months

Additional Information

Chief Medical Offier

Liquidia Technologies

Phone: 919-328-4400

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place