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Oral Omadacycline Vs. Placebo in Adults with NTM Pulmonary Disease Caused by Mycobacterium Abscessus Complex (MABc)

Phase 2
Completed
Conditions
Mycobacterium Infections, Nontuberculous
Nontuberculous Mycobacterial Pulmonary Infection
Mycobacterium Abscessus Infection
Nontuberculous Mycobacterial Lung Disease
Interventions
Registration Number
NCT04922554
Lead Sponsor
Paratek Pharmaceuticals Inc
Brief Summary

The purpose of this study is to evaluate the efficacy, safety and tolerability of oral omadacycline as compared to placebo in the treatment of adults with Nontuberculous Mycobacterial (NTM) pulmonary disease caused by Mycobacterium abscessus complex (MABc)

Detailed Description

The total duration of subject participation in the study is approximately 5 months which includes a total duration of study treatment for approximately 3 months (84 days). Eligible participants will be randomized 1.5:1 to receive 3 months of treatment with either omadacycline or placebo (monotherapy). The study will use a double-dummy design in order to maintain the study blinding.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
66
Inclusion Criteria
  • Has a diagnosis of Nontuberculous Mycobacterial pulmonary disease caused by MABc
  • Has at least 2 of the following NTM-infection symptoms present at Screening and Baseline: chronic cough, coughing up blood (hemoptysis), wheezing, chest pain, frequent throat clearing, phlegm or sputum production, shortness of breath, fatigue, fever, night sweats, poor appetite, and/or weight loss.
  • At least 1 positive pulmonary (sputum) culture for MABc in the 6 months prior to Screening and 1 positive culture at Screening
  • Radiographic evidence of MABc infection via computed tomography (CT) scan of the chest within 3 months prior to Screening
  • In the opinion of the investigator, guideline-directed antibiotic therapy for treatment of MABc will not be required within the next 3 months, and a delay, in order for the subject to participate in a placebo-controlled clinical trial, is considered reasonable and clinically acceptable
  • Additional inclusion criteria as per protocol

Key

Exclusion Criteria
  • Has received antibiotic treatment within 6 months prior to Screening for MABc or MAC
  • Has received systemic or inhaled antibiotic therapy (other than chronic macrolide therapy) within 4 weeks prior to Screening
  • Has any of the following medical conditions:
  • Active pulmonary malignancy, or any type of malignancy requiring chemotherapy or radiation within 1 year prior to Screening
  • Active allergic bronchopulmonary mycosis, or any other condition requiring chronic treatment with systemic corticosteroids within 90 days prior to Screening
  • Radiologic evidence of cavitary disease
  • Known active pulmonary tuberculosis
  • Cystic fibrosis
  • History of lung transplantation
  • Another advanced lung disease with a known percent predicted forced expiratory volume in 1 second < 30%.
  • Disseminated or extra-pulmonary NTM disease
  • Has been previously treated with omadacycline
  • Has a history of hypersensitivity or allergic reaction to tetracyclines
  • Additional exclusion criteria as per protocol

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Placebo POPlaceboPlacebo tablets resembling omadacycline (x 2) administered once daily, q24h
Omadacycline 300 mg POOmadacycline Oral Tabletomadacycline 150 mg tablets (x 2) administered orally, once daily, q24h
Primary Outcome Measures
NameTimeMethod
Clinical Response on NTM Symptom Assessment Scale at Day 84Day 1 to Day 84/EOT

Improvement in severity of at least 50% of symptoms present at baseline

Reported adverse events (AEs)Day 1 to Day 84/EOT

To assess reported adverse events

Clinically significant (CS), outside normal range laboratory testsDay 1 to Day 84/EOT

To assess the incidents of CS abnormal hematology, biochemistry, coagulation and urinalysis assessments following 84 days of IP administration

Changes from baseline in laboratory testsDay 1 to Day 84/EOT

To assess the incidents of abnormal hematology, biochemistry, coagulation and urinalysis assessments following 84 days of IP administration

Changes from baseline in vital signsDay 1 to Day 84/EOT

To assess the incidents of abnormal heart rate and blood pressure assessments following 84 days of IP administration

Clinically significant (CS) vital signsDay 1 to Day 84/EOT

To assess the incidents of CS heart rate and blood pressure following 84 days of IP administration

Changes from baseline in electrocardiogram (ECG)Day 1 to Day 84/EOT

To assess the incidents of abnormal heart rate, cardiac rhythm, PR interval, RR interval, QRS interval, QT interval and QTc interval assessments following 84 days of IP administration

Clinically significant (CS) electrocardiogram (ECG) findingsDay 1 to Day 84/EOT

To assess the incidents of CS and QTc interval assessments following 84 days of IP administration

Secondary Outcome Measures
NameTimeMethod
Change from baseline in the total score of the Quality of Life - Bronchiectasis (QOL-B) questionnaireDay 1 to Day 84/EOT
Change from baseline in global score and individual domain scores of the St. George Respiratory Questionnaire (SGRQ)Day 1 to Day 84/EOT
Change from baseline in Patient-Reported Outcomes Measurement Information System Short Form v1.0 - Fatigue 7a Daily (PROMIS-7a)Day 1 to Day 84/EOT
Change from baseline in Patient Clinical Impression of Severity (PGI-S)Day 1 to Day 84/EOT
Change from baseline in Patient Clinical Impression of Change (PGI-C)Day 1 to Day 84/EOT
Change from baseline in Clinical Global Impression - Severity of Illness (CGI-S)Day 1 to Day 84/EOT
Time to first negative sputum cultureDay 1 to Day 84/EOT
Change from baseline in Clinical Global Impression - Improvement (CGI-I)Day 1 to Day 84/EOT
Patients reporting no new symptoms with a severity worse than mild on the NTM Symptom Assessment QuestionnaireDay 1 to Day 84/EOT
Decrease in quantitative sputum culture at Day 84Day 1 to Day 84/EOT
Time to growth in liquid medium onlyDay 1 to Day 84/EOT

Trial Locations

Locations (17)

Stanford University

🇺🇸

Stanford, California, United States

Georgetown University Hospital

🇺🇸

Washington, District of Columbia, United States

St. Francis Medical Institute

🇺🇸

Clearwater, Florida, United States

University of Miami

🇺🇸

Miami, Florida, United States

University of South Florida

🇺🇸

Tampa, Florida, United States

Infectious Disease Consultants of the Treasure Coast

🇺🇸

Vero Beach, Florida, United States

Emory University School of Medicine

🇺🇸

Atlanta, Georgia, United States

Louisiana State University Medical Center Health Sciences Center-New Orleans Section of Pulmonary/Critical Care & Allergy/Immunology

🇺🇸

New Orleans, Louisiana, United States

Johns Hopkins University

🇺🇸

Baltimore, Maryland, United States

Dartmouth-Hitchcock Medical Center

🇺🇸

Lebanon, New Hampshire, United States

Einstein/Montefiore Medical Center

🇺🇸

Bronx, New York, United States

Northwell Health

🇺🇸

New Hyde, New York, United States

University of North Carolina at Chapel Hill

🇺🇸

Chapel Hill, North Carolina, United States

Oregon Health & Science University

🇺🇸

Portland, Oregon, United States

Medical University of South Carolina (MUSC)

🇺🇸

Charleston, South Carolina, United States

The University of Texas Health Science Center at Tyler

🇺🇸

Tyler, Texas, United States

University of Wisconsin Hospitals and Clinics

🇺🇸

Madison, Wisconsin, United States

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