Skip to main content
OpenTrials
Recruiting

NCT Number: NCT05906316

A Prospective, Multicenter, Single-arm MAC-PD Cohort: a NTM-NET and ESGMYC Collaborative Study

To gain insight in the effectiveness of, adherence and adjustments to guideline-based three-drug antimycobacterial therapy in patients with Mycobacterium avium complex pulmonary disease (MAC-PD) during the first 6 months of treatment.

Recruiting

Interested in participating?

Request Info

Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

UZ Leuven, Leuven, Belgium

Loading trial locations.

About this study

Mycobacterium avium complex (MAC) is the most frequent causative species that results in nontuberculous mycobacterial pulmonary disease (NTM-PD). Current treatment outcomes for MAC-PD are unsatisfactory with sputum culture conversion rates between 50-70%.The high prevalence of drug toxicity and low adherence to guideline-based treatment (GBT) are key reasons for the limited treatment success. Hence, there is an unmet need for prospective data on effectiveness of, adherence and adjustments to MAC-PD treatment regimens. By collaborating with NTM-NET and ESGMYC affiliated medical centers, we enable systematic, prospective data collection of an international MAC-PD cohort.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Newly diagnosed MAC-PD (primary or recurrent) as per the international NTM guideline that requires three-drug antimycobacterial treatment
  • Signed and dated informed consent

Exclusion criteria

  • The participant is in poor general condition where participation in the study cannot be accepted per discretion of the Investigator
  • The participant has a known or suspected, current drug or alcohol abuse, that is, in the opinion of the Investigator, sufficient to compromise the safety or cooperation of the patient
  • HIV-infection;
  • Cystic fibrosis;
  • >1 month antibiotic treatment for current MAC infection;
  • < 6 months between previous antimycobacterial NTM-PD treatment and antimycobacterial treatment for current MAC-PD
  • Disseminated MAC infection;
  • Active pulmonary tuberculosis, fungal or nocardial disease requiring treatment;
  • Active pulmonary malignancy (primary or metastatic) or any other malignancy requiring chemotherapy or radiotherapy within 6 months before screening or anticipated during the study period;

Treatment and study plan

Primary outcomes

  1. Culture conversion rate

    Time frame: 6 months

    Conversion from positive cultures at baseline to negative cultures after 6 months of antimycobacterial treatment, defined by three or more negative sputum cultures sampled a month apart or one negative culture from a bronchial lavage.

Secondary outcomes

  1. Change in mycobacterial load compared to baseline

    Time frame: 6 months

    Change in acid fast bacilli (AFB) smear determined by auramine staining

  2. Change in mycobacterial load compared to baseline

    Time frame: 6 months

    Change in time-to-positivity of positive cultures

  3. Change in symptoms compared to baseline

    Time frame: 6 months

    Change in symptoms as judged by the treating physician

  4. Adverse drug reactions to antimycobacterial treatment

    Time frame: 6 months

    Adverse drug reactions and the (assumed) causative antimycobacterial drug

  5. Antimycobacterial treatment adjustments

    Time frame: 6 months

    Any change in the antimycobacterial treatment including the reason

  6. Other treatment adjustments

    Time frame: 6 months

    Changes in concomitant medication, supportive care measures or a surgical intervention

Study contacts

Contact information is provided by the study sponsor or research team.

Arthur Lemson, MSc

CONTACT

[email protected]

+31634265743

Wouter Hoefsloot, MSc, PhD

CONTACT

[email protected]

+31611072569

Sponsors and collaborators

Lead sponsor

Radboud University Medical Center

Other

Registry information

Acronym: MAC-PD cohort

Important dates

Study start
2023
Primary completion
2026
Study completion
2026
First posted
Jun 15, 2023
Registry last updated
Jun 26, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.