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A Phase 2 Study to Evaluate Dose-Response of TAS-115 in Patients with Chronic Fibrosing Interstitial Lung Diseases with a Progressive Phenotype

A Phase 2, Double-Blind, Randomized, Active Controlled Study to Evaluate Dose-Response of TAS-115 in Patients with Chronic Fibrosing Interstitial Lung Diseases with a Progressive Phenotype

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2051210050
Enrollment
240
Registered
2021-07-12
Start date
2021-10-26
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Chronic Fibrosing Interstitial Lung Diseases with a Progressive Phenotype

Interventions

Investigational Product, Dosage, and Mode of Administration: TAS-115 (Dose 1 or Dose 2, or placebo) will be administered orally once daily to patients in the fasted state at bedtime. Study treatment w

Sponsors

Motoo Yoshiharu
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1)Provide written informed consent (2)Patients whose age at the time of informed consent is >= 20 years (3)Patients who have been given a diagnosis of interstitial lung disease by the investigator and have received nintedanib or pirfenidone for at least 90 days at Visit 1 for any of the approved indications (4)Pulmonary fibrosis of > 10% of all lung fields observed from central reading of chest high-resolution computed tomography (HRCT) at Visit 1 (5)Patients who meet the following criteria for progressiveness: Decline in percent predicted forced vital capacity (%FVC) based on a relative decline of >= 5%/year at Visit 1, as follows (Basepoint %FVC - Visit 1 %FVC) / Basepoint %FVC x 365 (days) / Measurement interval (days) x 100 >= 5% However, if the measurement interval is less than 365 days for decline in %FVC, a relative decline of >= 5% is required as follows: (Basepoint %FVC - Visit 1 %FVC) / Basepoint %FVC x 100 >= 5% The basepoint data are defined as measured data of the earliest date among the previous data obtained immediately before the start of or during the treatment with antifibrotic drugs (nintedanib or pirfenidone) that have been administered at Visit 1, excluding those with a clear reason such as incorrect measurement. The interval between the measurement date of basepoint data and the measurement at Visit 1 should be at least 90 days apart. (6)Difference between the FVC at Visit 2 and the FVC at Visit 1 of == 50% at Visit 2 (8)Percent predicted diffusing capacity for carbon monoxide (%DLco) [corrected for the hemoglobin (Hb) level at Visit 1] of >= 25% (9)Patients who have not started or discontinued treatment other than nintedanib or pirfenidone for interstitial lung disease within 42 days before randomization (10)The extent of fibrotic changes is greater than the extent of emphysema on chest HRCT scan at Visit 1 (the central review will be performed, but the final decision will be made by the investigator). (11)Patients who can take medication orally

Exclusion criteria

Exclusion criteria: (1)Patients with a history of TAS-115 use (2)Patients who received the following treatment during the specified period before randomization in this study a)Major surgery within 28 days before randomization (surgical wounds have to be healed before randomization) b)Patients who received nintedanib or pirfenidone within 7 days before randomization c)Treatment with another investigational product within 5 half-lives prior to randomization in this study (if half-life is unknown, 56 days must have elapsed) (3)Patients with airflow obstruction (percent forced expiratory volume in 1 second [FEV1/FVC] before treatment with a bronchodilator is < 0.7 at Visit 2) (4)Patients given a diagnosis of severe pulmonary hypertension (5)Patients with medical history of acute exacerbation of interstitial lung disease (6)Patients with a history of hypersensitivity to any component of TAS-115 (7)Patients with moderate or severe adverse drug reactions to prior treatment for moderate or severe decreased appetite, malaise, diarrhoea, nausea, skin disorder or interstitial lung disease (excluding alopecia and pigmentation) (8)Pregnant or lactating women (9)Male patients or female patients of childbearing potential who do not agree to use appropriate contraception during the following period: Male patients: During the study and for 4 months after the last dose of study drug Female patients of childbearing potential: During the study and for 7 months after the last dose of study drug

Design outcomes

Primary

MeasureTime frame
26-week rate of decline in FVC

Secondary

MeasureTime frame
52-week rate of decline in FVC, Endpoints related to FVC, DLco, SpO2, SGRQ, Time to first acute exacerbation, Time to first respiratory-related hospitalization, Overall survival, Time to first acute exacerbation or death, Adverse events

Contacts

Public ContactTakayuki Honda

Taiho Pharmaceutical Co., Ltd

ta-honda@taiho.co.jp+81-3-3293-2113

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Aug 3, 2026