YUTREPIA continues to be studied in the ongoing ASCENT trial in patients with PH-ILD1*
ASCENT trial design: Open-label, multicenter study to evaluate safety and tolerability of LIQ861 (YUTREPIA) in patients with newly diagnosed PH-ILD1,2,†
CE=cardiac effort; CT= computed tomography; CPFE=combined pulmonary fibrosis and emphysema; FEV1/FVC= forced expiratory volume in 1 second to forced vital capacity; ILD=interstitial lung disease; mPA=mean pulmonary artery; PVR=pulmonary vascular resistance; WU=Wood units.
Interim results from an ongoing study. Findings are preliminary and are subject to change upon completion of the trial.1
Patient has a confirmed diagnosis WHO Group 3 disease within 24 months and evidence of PH demonstrated by right heart catheterization within 6 months prior to baseline visit
Limited subset of patients
RAPID, WELL-TOLERATED DOSE TITRATION WITH PATIENT REACHING MEDIAN DOSE OF 185 MCG (COMPARABLE TO 21 BREATHS TYVASO) IN AN INTERIM ANALYSIS AT WEEK 241,2*
Patients with PH-ILD were able to titrate to higher doses at each time point, as more than 80% of patients received >132.5 mcg of YUTREPIA1,2*
*Interim results from an ongoing study. Findings are preliminary and are subject to change upon completion of the trial.1
All YUTREPIA doses are QID
YUTREPIA is approved for 3-5 times per day.
6MWD FROM BASELINE CONTINUED TO INCREASE2
Median change from baseline in 6MWD in meters
Interim results from an ongoing study. Findings are preliminary and are subject to change upon completion of the trial. 6MWD is an exploratory outcome.1
6-minute walking distance at Week 24*
INDICATION AND IMPORTANT SAFETY INFORMATION
INDICATION
YUTREPIA® is a prostacyclin mimetic indicated for the
treatment of:
- Pulmonary arterial hypertension (PAH; WHO Group 1) to improve exercise ability. Studies establishing effectiveness predominately included patients with NYHA Functional Class III symptoms and etiologies of idiopathic or heritable PAH (56%) or PAH associated with connective tissue diseases (33%).
- Pulmonary hypertension associated with interstitial lung disease (PH-ILD; WHO Group 3) to improve exercise ability. The study establishing effectiveness predominately included patients with etiologies of idiopathic interstitial pneumonia (IIP) (45%) inclusive of idiopathic pulmonary fibrosis (IPF), combined pulmonary fibrosis and emphysema (CPFE) (25%), and WHO Group 3 connective tissue disease (22%).
IMPORTANT SAFETY INFORMATION
WARNINGS AND PRECAUTIONS
- Treprostinil is a pulmonary and systemic vasodilator. In patients with low systemic arterial pressure, treatment with treprostinil may produce symptomatic hypotension.
- Treprostinil inhibits platelet aggregation and increases the risk of bleeding.
- Co-administration of a cytochrome P450 (CYP) 2C8 enzyme inhibitor (e.g., gemfibrozil) may increase exposure (both Cmax and AUC) to treprostinil. Co-administration of a CYP2C8 enzyme inducer (e.g., rifampin) may decrease exposure to treprostinil. Increased exposure is likely to increase adverse events associated with treprostinil administration, whereas decreased exposure is likely to reduce clinical effectiveness.
- Like other inhaled prostaglandins, YUTREPIA may cause acute bronchospasm. Patients with asthma or chronic obstructive pulmonary disease (COPD), or other bronchial hyperreactivity, are at increased risk for bronchospasm. Ensure that such patients are treated optimally for reactive airway disease prior to and during treatment with YUTREPIA.
DRUG INTERACTIONS/SPECIFIC POPULATIONS
- The concomitant use of treprostinil with diuretics, antihypertensives, or other vasodilators may increase the risk of symptomatic hypotension.
- Human pharmacokinetic studies with an oral formulation of treprostinil (treprostinil diolamine) indicated that co-administration of the cytochrome P450 (CYP) 2C8 enzyme inhibitor, gemfibrozil, increases exposure (both Cmax and AUC) to treprostinil. Co-administration of the CYP2C8 enzyme inducer, rifampin, decreases exposure to treprostinil. It is unclear if the safety and efficacy of treprostinil by the inhalation route are altered by inhibitors or inducers of CYP2C8.
- Limited case reports of treprostinil use in pregnant women are insufficient to inform a drug-associated risk of adverse developmental outcomes. However, pulmonary arterial hypertension is associated with an increased risk of maternal and fetal mortality. There are no data on the presence of treprostinil in human milk, the effects on the breastfed infant, or the effects on milk production.
- Safety and effectiveness in pediatric patients have not been established.
- Placebo-controlled clinical studies of treprostinil inhalation solution did not include sufficient numbers of patients aged 65 years and over to determine whether they respond differently from younger patients. The open label INSPIRE study in patients with PAH included 28 patients aged 65 and over in which no age-related differences were noted. In general, dose selection for an elderly patient should be cautious, reflecting the greater frequency of hepatic, renal, or cardiac dysfunction, and of concomitant diseases or other drug therapy.
- Uptitrate slowly when treating patients with hepatic insufficiency because of the risk of an increase in systemic exposure which may lead to an increase in dose-dependent adverse effects. Treprostinil has not been studied in patients with severe hepatic insufficiency.
- No dose adjustments are required in patients with renal impairment. Treprostinil is not cleared by dialysis.
ADVERSE REACTIONS
- PAH (WHO Group 1): The safety and tolerability of YUTREPIA was evaluated in an open label study (INSPIRE) of 121 patients with PAH (WHO Group 1 and NYHA Functional Class II [80 patients] and Class III [41 patients]) followed for up to 2 months. The most commonly reported adverse reactions included cough, headache, throat irritation, dizziness, which are known side effects of treprostinil inhalation solution. The adverse reactions in the INSPIRE study were consistent with those observed in previous studies of inhaled treprostinil.
- PH-ILD (WHO Group 3): In a 16-week, placebo-controlled study of 326 patients with PH-ILD (WHO Group 3), adverse reactions with inhaled treprostinil were similar to the experience in studies of PAH.
Please see Full Prescribing Information for YUTREPIA.
INDICATION
YUTREPIA® is a prostacyclin mimetic indicated for the treatment of:
- Pulmonary arterial hypertension (PAH; WHO Group 1) to improve exercise ability. Studies establishing effectiveness predominately included patients with NYHA Functional Class III symptoms and etiologies of idiopathic or heritable PAH (56%) or PAH associated with connective tissue diseases (33%).
- Pulmonary hypertension associated with interstitial lung disease (PH-ILD; WHO Group 3) to improve exercise ability. The study establishing effectiveness predominately included patients with etiologies of idiopathic interstitial pneumonia (IIP) (45%) inclusive of idiopathic pulmonary fibrosis (IPF), combined pulmonary fibrosis and emphysema (CPFE) (25%), and WHO Group 3 connective tissue disease (22%).
IMPORTANT SAFETY INFORMATION
WARNINGS AND PRECAUTIONS
- Treprostinil is a pulmonary and systemic vasodilator. In patients with low systemic arterial pressure, treatment with treprostinil may produce symptomatic hypotension.
- Treprostinil inhibits platelet aggregation and increases the risk of bleeding.
- Co-administration of a cytochrome P450 (CYP) 2C8 enzyme inhibitor (e.g., gemfibrozil) may increase exposure (both Cmax and AUC) to treprostinil. Co-administration of a CYP2C8 enzyme inducer (e.g., rifampin) may decrease exposure to treprostinil. Increased exposure is likely to increase adverse events associated with treprostinil administration, whereas decreased exposure is likely to reduce clinical effectiveness.
- Like other inhaled prostaglandins, YUTREPIA may cause acute bronchospasm. Patients with asthma or chronic obstructive pulmonary disease (COPD), or other bronchial hyperreactivity, are at increased risk for bronchospasm. Ensure that such patients are treated optimally for reactive airway disease prior to and during treatment with YUTREPIA.
DRUG INTERACTIONS/SPECIFIC POPULATIONS
- The concomitant use of treprostinil with diuretics, antihypertensives, or other vasodilators may increase the risk of symptomatic hypotension.
- Human pharmacokinetic studies with an oral formulation of treprostinil (treprostinil diolamine) indicated that co-administration of the cytochrome P450 (CYP) 2C8 enzyme inhibitor, gemfibrozil, increases exposure (both Cmax and AUC) to treprostinil. Co-administration of the CYP2C8 enzyme inducer, rifampin, decreases exposure to treprostinil. It is unclear if the safety and efficacy of treprostinil by the inhalation route are altered by inhibitors or inducers of CYP2C8.
- Limited case reports of treprostinil use in pregnant women are insufficient to inform a drug-associated risk of adverse developmental outcomes. However, pulmonary arterial hypertension is associated with an increased risk of maternal and fetal mortality. There are no data on the presence of treprostinil in human milk, the effects on the breastfed infant, or the effects on milk production.
- Safety and effectiveness in pediatric patients have not been established.
- Placebo-controlled clinical studies of treprostinil inhalation solution did not include sufficient numbers of patients aged 65 years and over to determine whether they respond differently from younger patients. The open label INSPIRE study in patients with PAH included 28 patients aged 65 and over in which no age-related differences were noted. In general, dose selection for an elderly patient should be cautious, reflecting the greater frequency of hepatic, renal, or cardiac dysfunction, and of concomitant diseases or other drug therapy.
- Uptitrate slowly when treating patients with hepatic insufficiency because of the risk of an increase in systemic exposure which may lead to an increase in dose-dependent adverse effects. Treprostinil has not been studied in patients with severe hepatic insufficiency.
- No dose adjustments are required in patients with renal impairment. Treprostinil is not cleared by dialysis.
ADVERSE REACTIONS
- PAH (WHO Group 1): The safety and tolerability of YUTREPIA was evaluated in an open label study (INSPIRE) of 121 patients with PAH (WHO Group 1 and NYHA Functional Class II [80 patients] and Class III [41 patients]) followed for up to 2 months. The most commonly reported adverse reactions included cough, headache, throat irritation, dizziness, which are known side effects of treprostinil inhalation solution. The adverse reactions in the INSPIRE study were consistent with those observed in previous studies of inhaled treprostinil.
- PH-ILD (WHO Group 3): In a 16-week, placebo-controlled study of 326 patients with PH-ILD (WHO Group 3), adverse reactions with inhaled treprostinil were similar to the experience in studies of PAH.
Please see Full Prescribing Information for YUTREPIA.
References
- An Open-Label ProSpective MultiCENTer Study to Evaluate Safety and Tolerability of Dry Powder Inhaled Treprostinil in PH (ASCENT). ClinicalTrials.gov identifier: NCT06129240. Updated May 31, 2025. Accessed November 19, 2025. https://clinicaltrials.gov/study/NCT06129240
- Data on file. Liquidia Technologies, Inc.