Safety and Efficacy Study of Pirfenidone to Treat Idiopathic Pulmonary Fibrosis(IPF)

NCT ID: NCT01504334

Last Updated: 2012-02-07

Basic Information

• Recruitment Status: UNKNOWN
• Clinical Phase: PHASE2
• Total Enrollment: 80 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2012-01-31
• Study Completion Date: 2013-03-31

Brief Summary

Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive form of lung disease characterized by fibrosis of the supporting framework (interstitium) of the lungs. By definition, the term is used only when the cause of the pulmonary fibrosis is unknown ("idiopathic"). Microscopically, lung tissue from patients shows a characteristic set of histologic/pathologic features known as usual interstitial pneumonia (UIP). UIP is therefore the pathologic counterpart of IPF.Idiopathic pulmonary fibrosis is characterized by radiographically evident interstitial infiltrates predominantly affecting the lung bases and by progressive dyspnea and worsening of pulmonary function. No therapy has been clearly shown to prolong survival. The current strict definition of idiopathic pulmonary fibrosis provides a new focus for basic and clinical research that will improve insight into the pathogenesis of this disorder and stimulate the development of novel therapies.

Pirfenidone has proven antifibrotic and anti-inflammatory properties in various in vitro systems and animal models of pulmonary fibrosis, although its precise mechanism of action remains unclear. It attenuates fibroblast proliferation, production of fibrosis-associated proteins and cytokines, and the increased biosynthesis and accumulation of extracellular matrix in response to cytokines such as transforming growth factor-β. It is also shown to slow tumor cell proliferation by inhibiting fibroblast growth factor, epidermal growth factor and platelet-derived growth factor.

Pirfenidone has not been widely approved for clinical use in China, in this study, safety and efficacy were evaluated to see if pirfenidone has a significant advantage over placebo in terms of improving lung function and life quality etc. (see primary and secondary criteria) or slows down the deterioration of lung function in Chinese subjects diagnosed with IPF.

Conditions

Idiopathic Pulmonary Fibrosis

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: QUADRUPLE

Study Groups

Pirfenidone(200mg)

Pirfenidone（200mg）tablets will be taken 3 times a day during the whole study process. For the first week, 1 tablet will be taken each time. For the second week, 2 tablets will be taken each time. From the third week to the 48th week, 3 tablets will be taken each time. Base drug Acetyl Cysteine Tablets（600mg）will be taken once a day, 1 tablet each time from the first to the 48th week.

Group Type: EXPERIMENTAL

Pirfenidone

Intervention Type: DRUG

Pirfenidone（200mg）tablets will be taken 3 times a day during the whole study process. For the first week, 1 tablet will be taken each time. For the second week, 2 tablets will be taken each time. From the third week to the 48th week, 3 tablets will be taken each time. Base drug Acetyl Cysteine Tablets（600mg）will be taken once a day, 1 tablet each time from the first to the 48th week.

Placebo (without active ingredient)

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

Placebo（without active ingredient） tablets will be taken 3 times a day during the whole study process. For the first week, 1 tablet will be taken each time. For the second week, 2 tablets will be taken each time. From the third week to the 48th week, 3 tablets will be taken each time. Base drug Acetyl Cysteine Tablets（600mg）will be taken once a day, 1 tablet each time from the first to the 48th week for both groups.

Interventions

Pirfenidone

Pirfenidone（200mg）tablets will be taken 3 times a day during the whole study process. For the first week, 1 tablet will be taken each time. For the second week, 2 tablets will be taken each time. From the third week to the 48th week, 3 tablets will be taken each time. Base drug Acetyl Cysteine Tablets（600mg）will be taken once a day, 1 tablet each time from the first to the 48th week.

Intervention Type: DRUG

Placebo

Placebo（without active ingredient） tablets will be taken 3 times a day during the whole study process. For the first week, 1 tablet will be taken each time. For the second week, 2 tablets will be taken each time. From the third week to the 48th week, 3 tablets will be taken each time. Base drug Acetyl Cysteine Tablets（600mg）will be taken once a day, 1 tablet each time from the first to the 48th week for both groups.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

1. Written informed consent signed;

2. 18-75 years of age;

3. Clinically or multidisciplinarily diagnosed idiopathic pulmonary fibrosis(see 2011 guidance );

4. Resting state PaO2≥50mg, FVC%≥45% normal predicted value and DLCO≥30% normal predicted value.

Exclusion Criteria

1. Allergic to pirfenidone;

2. Dyspnea symptoms relieved in the past 6 months;

3. Patients in acute exacerbation phase;

4. Diabetic patients whose fasting venous glucose >11.1 mmol/L;

5. Patients with malignant tumor and hemorrhagic diseases;

6. Patients with serious underlying pulmonary disease;

7. Patients with serious heart disease(NYHA class Ⅲ-Ⅳ), liver disease(ALT or AST 2 times above the upper level of normal value range), kidney disease(Cr above the upper level of normal value range);

8. Patients who has taken Acetylcysteine in the past 3 months;

9. Patients who has taken Prednisone>15mg/day(or other equivalent amount of glucocorticoid) and/or Immunosuppresants in the past 3 months;

10. Patients who has taken interferon, penicillamine, colchine or other agents for the treatment of IPF;

11. Pregnant or lactating women;

12. Participated in other clinical trials in the past 1 month;

13. The investigator assessed as inappropriate to participate in this clinical trial.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Beijing Kawin Technology Share-Holding Co., Ltd.

INDUSTRY

Sponsor Role: lead

Responsible Party

Zuojun Xu

Chief Physician

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Xu Zuojun, MD

Role: PRINCIPAL_INVESTIGATOR

Peking Union Medical College Hospital

Locations

Peking Union Medical College Hospital

Beijing, Beijng, China

Site Status: RECRUITING

Countries

China

Central Contacts

Xu Zuojun, MD

Role: CONTACT

xuzj@hotmail.com

+86-10-65295039

Facility Contacts

Zuojun Xu, MD

Role: primary

xuzj@hotmail.com

010-65295039

References

Huang H, Dai HP, Kang J, Chen BY, Sun TY, Xu ZJ. Double-Blind Randomized Trial of Pirfenidone in Chinese Idiopathic Pulmonary Fibrosis Patients. Medicine (Baltimore). 2015 Oct;94(42):e1600. doi: 10.1097/MD.0000000000001600.

Reference Type: DERIVED

PMID: 26496265 (View on PubMed)

Other Identifiers

KAWIN-001

Identifier Type: -

Identifier Source: org_study_id