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RecruitingNCT05975983Updated Nov 12, 2025

Study Evaluating INS018_055 Administered Orally to Subjects With Idiopathic Pulmonary Fibrosis

A Phase 2 interventional study of INS018_055 and Placebo in Idiopathic Pulmonary Fibrosis (IPF), sponsored by InSilico Medicine Hong Kong Limited. Recruiting at 12 sites in United States. Open to participants aged 40 Years and older. Per ClinicalTrials.gov, last updated 2025-11-12.

Sponsored by InSilico Medicine Hong Kong Limited · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Feb 2026, 8 months ago, but the record still lists the study as recruiting.
  • Started Feb 2024; still recruiting 2 years 9 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
40 Years and older
Sex
All
01

Study summary

The purpose of this revised Phase IIa study is to demonstrate safety of INS018_055 over 12 weeks in adults with Idiopathic Pulmonary Fibrosis (IPF).

Read the detailed description

Idiopathic pulmonary fibrosis is a fatal lung disease characterized by reduced quality of life (QoL) and a median survival of 3 to 4 years. While current standard of care (SoC) treatments including pirfenidone and nintedanib slow disease progression, they are not curative and poorly tolerated due to their toxicity profiles. To address the need for new treatments in IPF, InSilico Medicine is developing INS018_055, a potent inhibitor of the serine/threonine kinase Traf2- and Nckinteracting kinase (TNIK).

02

Conditions studied

  • Idiopathic Pulmonary Fibrosis (IPF)

Keywords

  • Pulmonary Fibrosis
  • Idiopathic Pulmonary Fibrosis
  • Fibrosis
  • Pathologic Processes
  • Lung Diseases, Interstitial
  • Lung Diseases
  • Respiratory Tract Diseases
03

In context

Idiopathic Pulmonary Fibrosis

576 studies on the registry are indexed under Idiopathic Pulmonary Fibrosis; 123 are open to participants now.

This study's planned enrollment of 40 is below the median of 55 across 389 interventional studies indexed under Idiopathic Pulmonary Fibrosis.

Browse Idiopathic Pulmonary Fibrosis studies →

Lead sponsor

InSilico Medicine Hong Kong Limited is the lead sponsor of 11 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Male or female patients aged ≥40 years based on the date of the written form
  2. Diagnosis of IPF as defined by American Thoracic Society/European Respiratory Society/Japanese Respiratory Society/Latin American Thoracic Association guidelines
  3. In a stable condition and suitable for study participation based on the results of medical history, physical examination, vital signs, 12-lead , and laboratory evaluation
  4. Meeting all of the following criteria during the screening period:

    1. FVC ≥40% predicted normal
    2. DLCO corrected for ≥25% and \<80% predicted normal
    3. /FVC (FEV1/FVC) ratio >0.7 based on pre-bronchodilator value

Exclusion criteria

Exclusion Criteria:

  1. Acute IPF exacerbation within 4 months prior to Visit 1 and/or Day 1, as determined by the investigator
  2. Patients who are unwilling to refrain from smoking within 3 months prior to screening and until the end of the study
  3. Female patients who are pregnant or nursing
  4. Abnormal findings
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

FEV1

From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
40 participants (estimated)

Study arms

  • Experimental
    INS018_055

    INS018\_055 is administered once daily up to 12 weeks

    Drug: INS018_055

  • Placebo comparator
    Placebo

    Placebo is administered once daily up to 12 weeks

    Drug: Placebo

Interventions

  • Pharmaceutical formulation: Tablet Mode of Administration: Oral

  • DrugPlacebo

    Pharmaceutical formulation: Tablet Mode of Administration: Oral

06

What researchers measure

Primary outcomes

  1. Percentage of subjects who have at least 1 treatment-emergent adverse event (TEAE)

    Time frame: Day 1 (Visit 2) up to Week 12 (End of Treatment (EOT))

Secondary outcomes

  1. Maximum plasma concentration (Cmax) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  2. Time to reach maximum plasma concentration (Tmax) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  3. Area under the plasma concentration-time curve from time zero to dosing interval τ (AUC0-τ) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  4. Area under the plasma concentration-time curve from time zero to time with last measurable concentration t (AUC0-t) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  5. Area under the plasma concentration-time curve from time zero to infinity (∞) (AUC0-∞) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  6. Terminal elimination half-life (t1/2) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  7. Terminal elimination rate constant (λz) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  8. Apparent clearance (CL/F) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  9. Apparent volume of distribution (Vz/F) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  10. Accumulation ratio (Rac) for Cmax and AUC of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  11. Trough plasma concentration (Ctrough) of INS018_055 and its major metabolites (INS018_063 and INS018_095)

    Time frame: Following the first dose on Day 1 (Visit 2) and the last dose during Week 12 (Visit 8, End of Treatment (EOT))

  12. Relative change in Forced Vital Capacity (FVC) in mL

    Time frame: Week 0/Visit 2 up to Week 12

  13. Percentage change in FVC in mL

    Time frame: Week 0/Visit 2 up to Week 12

  14. Absolute and relative change in FVC % predicted

    Time frame: Week 0/Visit 2 up to Week 12

  15. Change in Diffusion Capacity of the lung for Carbon Monoxide (DLCO) % predicted

    Time frame: Week 0/Visit 2 to Week 12

  16. Change in Leicester Cough Questionnaire (LCQ)

    Time frame: Week 0 to Week 4, 8 and 12

  17. Change in 6-Minute Walk Distance (6MWD) in meters

    Time frame: Week 0 to Week 12

  18. Number of acute IPF exacerbations

    Time frame: Week 0 up to Week 12

  19. Number of days hospitalized for acute IPF exacerbations

    Time frame: Week 0 to up Week 12

07

Study locations

12 of 12 sites recruiting
  • University of Alabama at Birmingham
    Birmingham, Alabama 35294, United States
    Recruiting
  • HonorHealth Research Institute
    Scottsdale, Arizona 85258, United States
    Recruiting
  • Keck School of Medicine of USC
    Los Angeles, California 90033, United States
    Recruiting
  • Florida Lung Asthma and Sleep Specialist
    Celebration, Florida 34747-1818, United States
    Recruiting
  • Central Florida Pulmonary Group, P.A. (CFPG) - Downtown Orlando
    Orlando, Florida 32803-5727, United States
    Recruiting
  • Southeastern Research Center
    Winston-Salem, North Carolina 27103-4007, United States
    Recruiting
  • University of Oklahoma Health Sciences Center (OUHSC)
    Oklahoma City, Oklahoma 73104-5417, United States
    Recruiting
  • Temple University Hospital-Temple Lung Center
    Philadelphia, Pennsylvania 19140, United States
    Recruiting
  • Bogan Sleep Consultants, LLC
    Columbia, South Carolina 29201-2953, United States
    Recruiting
  • University of Texas Southwestern Medical Center
    Dallas, Texas 75235-6243, United States
    Recruiting
  • Metroplex Pulmonary and Sleep Center
    McKinney, Texas 75069-1898, United States
    Recruiting
  • Research Centers of America
    McKinney, Texas 75071, United States
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Feb 2024 (actual). Primary completion is estimated for Feb 2026, 24 months after the start.

Of 63 industry-sponsored phase 2 interventional studies under Idiopathic Pulmonary Fibrosis, half reached primary completion within 26 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 48. This study's planned 24 months is close to that.

Counting every sponsor, half of 76 studies reached it within 30 months; a quarter within 21 and three quarters within 50.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 27, 2023
First posted
Aug 4, 2023
StartActual
Feb 8, 2024
Primary completionEst.
Feb 28, 2026
CompletionEst.
Feb 28, 2026
Last update
Nov 12, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 12, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05975983
Lead sponsor
InSilico Medicine Hong Kong Limited
Responsible party
Sponsor
First posted
Aug 4, 2023
Start date
Feb 8, 2024
Primary completion
Feb 28, 2026 (estimated)
Completion
Feb 28, 2026 (estimated)
Last update
Nov 12, 2025

Study contacts

Monique Duncan
Contact
Insilico-Clinicaltrial@insilico.ai
+86 18817554306
Carol Salter, MD, PhD
Contact
Insilico-Clinicaltrial@insilico.ai

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Rentosertib

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