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Study of TTI-101 in Participants With Idiopathic Pulmonary Fibrosis

REVERT-IPF: A Phase 2 Multicenter, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of TTI-101 in Participants With Idiopathic Pulmonary Fibrosis

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05671835
Enrollment
100
Registered
2023-01-05
Start date
2023-05-15
Completion date
2025-08-14
Last updated
2025-09-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Idiopathic Pulmonary Fibrosis

Keywords

Idiopathic Pulmonary Fibrosis, IPF, TTI-101

Brief summary

The primary objective of this study is to evaluate the safety and tolerability of oral daily administration of TTI-101 over a 12-week treatment duration in participants with idiopathic pulmonary fibrosis (IPF).

Interventions

Orally via a tablet.

DRUGPlacebo

Orally via a tablet.

Sponsors

Tvardi Therapeutics, Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Diagnosed with IPF based on either the 2018 American Thoracic Society (ATS)/ European Respiratory Society (ERS)/ Japanese Respiratory Society (JRS)/ Latin American Thoracic Association (ALAT) International Diagnostic Guidelines or on the 2022 updated guidelines within 7 years prior to the date of informed consent. 2. Chest high-resolution computed tomography scan (HRCT) performed within 12 months prior to providing informed consent meeting requirements for IPF diagnosis based on 2018 or 2022 ATS/ERS/JRS/ALAT guidelines and confirmed by central review. 3. Greater than 40% of predicted forced vital capacity (FVC) and a ratio of forced expiratory volume in 1 second (FEV1)/FVC ≥0.7 measured pre-bronchodilator during screening confirmed by central review. 4. A predicted diffusing capacity of the lungs for carbon monoxide (DLCO) (hemoglobin \[Hb\] corrected) ≥25% during screening confirmed by central review. 5. Oxygen saturation (SpO2) ≥88% with up to 4L O2/min by pulse oximetry at rest. 6. If currently receiving nintedanib, dose must have been stable for ≥3 months prior to randomization. If participant has previously discontinued nintedanib, there is a 6-week washout period required before screening can begin. 7. Has a life expectancy of at least 12 months.

Exclusion criteria

1. Unresolved respiratory tract infection within 4 weeks (including coronavirus disease 2019 \[COVID-19\] infections) or an acute exacerbation of IPF within 3 months prior to screening. 2. Planned surgery during the study. 3. The investigator judges that there has been sustained improvement in the severity of IPF during the 12 months prior to screening, based on changes in FVC, DLCO, and/or HRCT scans of the chest. 4. History of other types of respiratory diseases including diseases or disorders of the airways, lung parenchyma, pleural space, mediastinum, diaphragm, or chest wall that, in the opinion of the investigator, would impact the primary protocol endpoint or ability to do pulmonary function tests (PFTs), or otherwise preclude participation in the study. 5. Likely to have lung transplantation during the study. Note: Participant may be on a lung transplant list if the investigator anticipates the participant will be able to complete the study prior to transplant. 6. Clinically relevant and uncontrolled cardiac, hepatic, gastrointestinal, renal, endocrine, metabolic, neurologic, or psychiatric disorders that may interfere with the participant's ability to complete this study according to the investigator's judgment, or logistical challenges that, in the opinion of the investigator, preclude adequate participation in the study. 7. History or difficulty of swallowing, malabsorption, or other chronic gastrointestinal disease or conditions that may hamper compliance and/or absorption of the study drug. 8. Receiving steroids (excluding topical steroids) in excess of a mean of 10 mg/day of prednisolone or its equivalent within 2 weeks prior to randomization. 9. Received pirfenidone within 3 months prior to randomization. 10. Smoking or vaping of any kind within 3 months of screening.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants with an Adverse Event (AE)16 weeksIncidence of AEs, including serious AEs assessed using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) V.5.0. Clinically significant changes between baseline and postbaseline laboratory assessments, electrocardiograms, vital signs, and physical examinations will be recorded as AEs.

Secondary

MeasureTime frame
Maximum Observed Plasma Concentration (Cmax) of TTI-101Day 1 to Week 12
Time of Maximum Observed Plasma Concentration (tmax) of TTI-101Day 1 to Week 12
Area Under the Plasma Concentration-time Curve Over a Dosing Interval (AUC[0-τ]) of TTI-101Day 1 to Week 12
Trough Plasma Concentration (Cτ) of TTI-101Day 1 to Week 12

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026