Short-term Antibiotic Therapy in Mycobacterium Avium Complex Pulmonary Disease

NCT ID: NCT07213765

Last Updated: 2025-10-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

188 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-24

Study Completion Date

2028-12-31

Brief Summary

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The goal of this clinical trial is to learn if adding contezolid works to shorten the length of treatment in mycobacterium avium pulmonary disease in adults. It will also learn about the safety of extended usage of contezolid. The main questions it aims to answer are:

Does adding contezolid to standard regimen decrease the bacterial load, lesion severity and improve the life quality of patients with mycobacterium avium pulmonary disease? What medical problems do participants have when taking contezolid for an extended length? Researchers will compare standard regimen plus contezolid to standard regimen alone to see if contezolid helps further decrease the bacterial load, lesion severity and improve the life quality of patients with mycobacterium avium pulmonary disease?

Participants will:

Take contezolid and standard regimen (azithromycin, ethambutol, and rifampicin) for 6 months, contezolid is administered every day while other drugs are taken three times a week OR take standard regimen three times a week for 12 months.

Visit the clinic once every 1 month for checkups and tests.

Detailed Description

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Conditions

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Mycobacterium Avium Complex Pulmonary Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Contezolid shortened regimen

Group Type EXPERIMENTAL

Contezolid

Intervention Type DRUG

contezolid 800mg po q12h\*6m

Azithromycin

Intervention Type DRUG

azithromycin 500mg po tiw (250mg po tiw for BW under 50kg)\*6m

Ethambutol (E)

Intervention Type DRUG

ethambutol 25mg/kg po tiw\*6m

Rifampicin (R)

Intervention Type DRUG

rifampicin 600mg po tiw (450mg po tiw for BW under 50kg)\*6m

Standard regimen

Group Type ACTIVE_COMPARATOR

Azithromycin

Intervention Type DRUG

azithromycin 500mg po tiw (250mg po tiw for BW under 50kg)\*12m

Ethambutol (E)

Intervention Type DRUG

ethambutol 25mg/kg po tiw\*12m

Rifampicin (R)

Intervention Type DRUG

rifampicin 600mg po tiw (450mg po tiw for BW under 50kg)\*12m

Interventions

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Contezolid

contezolid 800mg po q12h\*6m

Intervention Type DRUG

Azithromycin

azithromycin 500mg po tiw (250mg po tiw for BW under 50kg)\*6m

Intervention Type DRUG

Azithromycin

azithromycin 500mg po tiw (250mg po tiw for BW under 50kg)\*12m

Intervention Type DRUG

Ethambutol (E)

ethambutol 25mg/kg po tiw\*6m

Intervention Type DRUG

Ethambutol (E)

ethambutol 25mg/kg po tiw\*12m

Intervention Type DRUG

Rifampicin (R)

rifampicin 600mg po tiw (450mg po tiw for BW under 50kg)\*6m

Intervention Type DRUG

Rifampicin (R)

rifampicin 600mg po tiw (450mg po tiw for BW under 50kg)\*12m

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Patients voluntarily participate in this study and sign the Informed Consent Form.
2. Age ≥ 18 years and ≤75 years; gender unrestricted.
3. Confirmed diagnosis of MAC pulmonary disease per ATS/IDSA 2020 guidelines or Chinese Guidelines for Diagnosis and Treatment of Nontuberculous Mycobacterial Diseases (2020 edition), with imaging features consistent with nodular bronchiectatic type.
4. No prior anti-MAC treatment within the 3 months preceding screening.
5. For premenopausal women of childbearing potential who are not surgically sterile:

Must use a medically accepted contraceptive method (e.g., intrauterine device, hormonal contraception, or condom) during the study period and for 3 months following the last dose of investigational treatment.

Serum or urine human chorionic gonadotropin (hCG) test must be negative within 72 hours prior to enrollment.

Must not be breastfeeding. Male patients with partners of childbearing potential must use effective contraception during the study period and for 3 months after the last dose.
6. Organ function criteria met within one week prior to enrollment:

i. Hemoglobin ≥60 g/L; ii. Neutrophil count ≥0.5 × 10⁹/L; iii. Platelet count ≥60 × 10⁹/L; iv. Serum total bilirubin ≤3 × upper limit of normal (ULN); v. Aspartate aminotransferase (AST) ≤3 × ULN; vi. Alanine aminotransferase (ALT) ≤3 × ULN; vii. Serum creatinine \<2 × ULN OR creatinine clearance ≥60 mL/min; viii. Blood urea nitrogen (BUN) ≤200 mg/L; ix. Urinalysis: Proteinuria \<++; if proteinuria is +, 24-hour total protein must be \<500 mg.

x. Fasting blood glucose within normal range OR stable glycemic control in diabetic patients.

xi. Cardiac function: No myocardial infarction in the preceding 6 months; No unstable angina or severe arrhythmias; New York Heart Association (NYHA) functional class \>II.

Exclusion Criteria

1. History of allergy to any study drug in the treatment regimen.
2. Mixed infections with multiple mycobacteria, bacteria, fungi, or viruses (e.g., HIV coinfection).
3. Presence of congenital/acquired immunodeficiency disorders, active pulmonary malignancy (primary or metastatic), or other malignancies requiring chemotherapy/radiation therapy during the screening or study period.
4. History of solid organ transplantation.
5. Currently undergoing dialysis.
6. Uncontrolled radiation pneumonitis requiring steroid or immunoglobulin pulse therapy, active interstitial lung disease with clinical evidence, uncontrolled and significant pleural effusion or pericardial effusion.
7. Unstable systemic comorbidities including:

Hypertensive crisis; Unstable angina; Congestive heart failure (NYHA Class III/IV); Myocardial infarction within the preceding 6 months; Severe psychiatric disorders requiring medication (e.g., schizophrenia, bipolar disorder); Severe hepatic or renal dysfunction (e.g., Child-Pugh Class C cirrhosis, eGFR \<30 mL/min/1.73m²); Neurodegenerative diseases (e.g., Alzheimer's disease).
8. Poor gastrointestinal function or malabsorption syndrome.
9. Receipt of other investigational drugs within 4 weeks prior to the first study drug administration.
10. Concurrent participation in another interventional clinical trial, unless it is an observational/noninterventional study OR follow-up phase of a completed intervention trial.
11. Any physical examination findings or clinical tests deemed by the investigator as likely to:

Interfere with study results; Increase risks of complications during treatment.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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MicuRx

INDUSTRY

Sponsor Role collaborator

Shanghai Pulmonary Hospital, Shanghai, China

OTHER

Sponsor Role collaborator

Beijing Chest Hospital

OTHER

Sponsor Role collaborator

Anhui Chest Hospital

OTHER

Sponsor Role collaborator

Jiangxi Chest Hospital

UNKNOWN

Sponsor Role collaborator

Guangzhou Chest Hospital.

UNKNOWN

Sponsor Role collaborator

Bin Cao

OTHER

Sponsor Role lead

Responsible Party

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Bin Cao

Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Xiaojin Cui, M.D.

Role: PRINCIPAL_INVESTIGATOR

China-Japan Friendship Hospital

Locations

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Anhui Chest Hospital

Hefei, Anhui, China

Site Status RECRUITING

Beijing Chest Hospital, Capital Medical University

Beijing, Beijing Municipality, China

Site Status RECRUITING

China-Japan Friendship Hospital

Beijing, Beijing Municipality, China

Site Status RECRUITING

Guangzhou Chest Hospital

Guangzhou, Guangdong, China

Site Status NOT_YET_RECRUITING

Jiangxi Chest Hospital

Nanchang, Jiangxi, China

Site Status RECRUITING

Shanghai Pulmonary Hospital

Shanghai, Shanghai Municipality, China

Site Status NOT_YET_RECRUITING

Countries

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China

Central Contacts

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Siwei Gu, M.D.

Role: CONTACT

+861084205566

Other Identifiers

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2025-KY-004

Identifier Type: -

Identifier Source: org_study_id

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