A Study to Test Tetrandrine Tablets for Connective Tissue Disease-Related Lung Disease

NCT ID: NCT07319598

Last Updated: 2026-01-06

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: PHASE4
• Total Enrollment: 100 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-11-02
• Study Completion Date: 2027-01-01

Brief Summary

This study evaluates the efficacy and safety of tetrandrine tablets (60 mg, three times daily) compared to placebo in adult patients with connective tissue disease-related interstitial lung disease. Patients receive standard treatment (glucocorticoids and immunosuppressants) alongside the study drug or placebo for 24 weeks. The study measures changes in lung function, inflammatory markers, lung imaging, quality of life, and safety outcomes.

Detailed Description

This multicenter, randomized, double-blind, placebo-controlled study enrolls 100 adults with connective tissue disease-related interstitial lung disease. Patients are randomized 1:1 to receive tetrandrine tablets (60 mg TID) or placebo for 24 weeks, alongside standard treatment. The primary outcome is the change in forced vital capacity (FVC) at 24 weeks. Secondary outcomes include changes in serum inflammatory markers (TGF-β1, KL6, TNF-α, IL-6), lung HRCT scores, other Lung function parameters (TLC, VC, DLCO, PaO2), St. George's Respiratory Questionnaire (SGRQ) score, safety parameters, and all-cause mortality. Visits occur at weeks 4, 8, 12, and 24 for efficacy and safety assessments.

Conditions

Interstitial Lung Disease (ILD); Connective Tissue Disease-associated Interstitial Lung Disease

Study Design

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

Study Groups

Tetrandrine Group

Participants receive tetrandrine tablets (60 mg, three times daily) for 24 weeks, along with standard treatment (glucocorticoids and immunosuppressants).

Group Type: EXPERIMENTAL

Tetrandrine Tablets

Intervention Type: DRUG

60 mg (3 tablets, 20 mg each), orally three times daily (TID) for 24 weeks, with glucocorticoids and immunosuppressants

Placebo Group

Participants receive placebo tablets (mimicking tetrandrine, three times daily) for 24 weeks, along with standard treatment (glucocorticoids and immunosuppressants).

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

Placebo tablets mimicking tetrandrine, 3 tablets TID, orally for 24 weeks, with glucocorticoids and immunosuppressants

Interventions

Tetrandrine Tablets

60 mg (3 tablets, 20 mg each), orally three times daily (TID) for 24 weeks, with glucocorticoids and immunosuppressants

Intervention Type: DRUG

Placebo

Placebo tablets mimicking tetrandrine, 3 tablets TID, orally for 24 weeks, with glucocorticoids and immunosuppressants

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Patients who voluntarily participate and sign the informed consent form
• Male or female patients aged 18-80 years (inclusive)
• Patients meeting the diagnostic criteria for connective tissue disease-related interstitial lung disease per the 2018 Chinese Expert Consensus at screening
• FVC ≥40% of predicted value at screening
• Fertile male or female patients must agree to use effective contraception from signing informed consent until 3 months after the last study drug dose (Exemptions: postmenopausal women >50 years with amenorrhea for >1 year, or surgically sterilized women)
• Patients on stable doses of prednisone (≤20 mg/day or equivalent) or immunosuppressants for at least 4 weeks prior to study entry, with dose adjustments not exceeding this during the double-blind period

Exclusion Criteria

• Treatment with tetrandrine or other antifibrotic drugs within 1 month before screening
• Diabetes with fasting blood glucose greater than 11.1 mmol per L
• Resting arterial oxygen partial pressure less than 50 mmHg
• Active peptic ulcers or bleeding disorders
• Tumors with expected survival less than 1 year
• Active pulmonary tuberculosis
• Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) 5 times the upper limit of normal (ULN) or higher, or ALT or AST 3 times ULN or higher with total bilirubin 2 times ULN or higher
• Creatinine clearance less than 30 mL per min (per Cockcroft-Gault formula) or patients receiving dialysis
• Known allergy to tetrandrine or its excipients
• Severe psychological, mental, cognitive, or intellectual impairments that may affect compliance
• Pregnant or breastfeeding women, or those planning pregnancy within 3 months after the last study drug dose
• Participation in another clinical trial within 3 months before screening
• Patients deemed unsuitable for the study by the investigator
• Clinically significant environmental exposure history that may cause pulmonary fibrosis (e.g., amiodarone, asbestos, beryllium, radiation)

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Peking University Third Hospital

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

Peking University Third Hospital

Beijing, , China

Site Status: RECRUITING

Countries

China

Facility Contacts

Zhang Jing

Role: primary

jiaqi@bjmu.edu.cn

+86-156119633822

Other Identifiers

V1.5/2024.11.08

Identifier Type: -

Identifier Source: org_study_id