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Phase 2 N=68 Randomized Double-blind Treatment

Evaluation of Early Bactericidal Activity in Pulmonary Tuberculosis (TMC207-CL001)

Pulmonary Tuberculosis

Enrolled (actual)
68
Serious AEs
1.5%
Results posted
Apr 2017
Primary outcome: Primary: Early Bactericidal Activity (EBA) Measured as the Mean Rate of Change of log10 Colony Forming Units (CFU) of M. Tuberculosis Per ml Sputum on Solid Medium Over Time (Days 0-14). — 0.040; 0.056; 0.077; 0.104 log10CFU/ml/day

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
TMC207 (Drug); Rifafour e-275 mg (Drug)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
Global Alliance for TB Drug Development
Primary completion
Aug 2010

Outcome Measures

OutcomeResultp-value
PRIMARY
Early Bactericidal Activity (EBA) Measured as the Mean Rate of Change of log10 Colony Forming Units (CFU) of M. Tuberculosis Per ml Sputum on Solid Medium Over Time (Days 0-14).
0.040; 0.056; 0.077; 0.104; 0.112
SECONDARY
Early Bactericidal Activity (EBA) Measured as the Mean Rate of Change of log10 Colony Forming Units (CFU) of M. Tuberculosis Per ml Sputum on Solid Medium Over Time (Days 7-14).
0.053; 0.086; 0.098; 0.107; 0.046
SECONDARY
Early Bactericidal Activity (EBA) Measured as the Mean Rate of Change of log10 Colony Forming Units (CFU) of M. Tuberculosis Per ml Sputum on Solid Medium Over Time (Days 2-14).
0.047; 0.071; 0.088; 0.106; 0.046
SECONDARY
Early Bactericidal Activity (EBA) Measured as the Mean Rate of Change of log10 Colony Forming Units (CFU) of M. Tuberculosis Per ml Sputum on Solid Medium Over Time (Days 0-2).
0.004; -0.033; 0.015; 0.093; 0.413
SECONDARY
Rate of Change in Time to Sputum Culture Positivity (TTP)(Hours) in Liquid Culture Media (Days 0-14)
4.0; 4.2; 4.9; 5.4; 14.3
SECONDARY
Rate of Change in Time to Sputum Culture Positivity (TTP)(Hours) in Liquid Culture Media (Days 0-2)
1.5; 3.7; 4.1; 6.2; 27.3
SECONDARY
Rate of Change in Time to Sputum Culture Positivity (TTP)(Hours) in Liquid Culture Media (Days 2-14)
4.4; 4.3; 5.1; 5.3; 11.5
SECONDARY
Rate of Change in Time to Sputum Culture Positivity (TTP)(Hours) in Liquid Culture Media (Days 7-14)
6.9; 4.8; 5.9; 4.4; 11.5
SECONDARY
Summary of Statistical Analysis of TMC207 Maximum Plasma Concentration Following Dosing (C(Max)) on Days 1 and 14
1846.13; 2700.73; 3128.00; 5386.67; 1553.27; 2884.67
SECONDARY
Summary of Statistical Analysis of TMC207 Time of Maximum Plasma Concentration (T(Max)) on Days 1 and 14
5.33; 5.20; 5.53; 5.67; 5.13; 4.60
SECONDARY
Summary of Statistical Analysis of TMC207 Area Under the Concentration-time Curve Over the Dose Interval of 0 to 24 h (AUC(0-24)) on Day 1 and Day 14
18995.57; 26619.51; 31357.35; 53179.27; 18689.03; 33314.07

Summary

The trial will evaluate the extended bactericidal activity of 14 consecutive days of oral administration of TMC207 at multiple doses as determined by the rate of change of log10 colony forming units (CFU) per ml sputum over the time period Day 7-14 in participants with smear positive pulmonary tuberculosis (TB). A control group will receive standard treatment.

Eligibility Criteria

Inclusion Criteria

  • Provide written, informed consent prior to all trial-related procedures including HIV testing.
  • Male or female, aged between 18 and 65 years inclusive.
  • Body weight (in light clothing and with no shoes) between 40 and 90 kg, inclusive.
  • Newly diagnosed, previously untreated, uncomplicated, sputum smear-positive, pulmonary TB.
  • A chest X-ray picture which in the opinion of the Investigator is compatible with TB.
  • Sputum positive on direct microscopy for acid-fast bacilli …(at least 1+ on the International Union Against Tuberculosis and Lung Disease (IUATLD)/World Health Organization (WHO) scale).
  • Ability to produce an adequate volume of sputum as estimated from a spot assessment (estimated 10 ml or more overnight production).
  • Females may participate if they are of non-childbearing potential, if they are using effective birth control methods and are willing to continue practicing birth control methods throughout treatment or if they are non-heterosexually active or willing to practice sexual abstinence throughout the treatment period or have a vasectomized partner (confirmed sterile). Therefore to be eligible for this study women of childbearing potential should either:1) use a double barrier method to prevent pregnancy (i.e. use a condom with either diaphragm or cervical cap) or 2) use hormonal based contraceptives in combination with a barrier contraceptive, or 3) use an intrauterine device in combination with a barrier contraceptive. They must also be willing to continue these contraception until 6 months after last study drug or 6 months after discontinuation from study medication in case of premature discontinuation. (Note: Hormone-based contraception may not be reliable when taking TMC207; therefore, hormone-based contraceptives cannot be used by female patients to prevent pregnancy).
  • Male patients must be willing to use a condom with spermicide when having heterosexual intercourse throughout treatment and until 1 month after last study drug administration or 1 month after discontinuation from study medication in case of premature discontinuation.

Exclusion Criteria

  • Evidence of clinically significant metabolic, gastrointestinal neurological, psychiatric or endocrine diseases, malignancy, or other abnormalities (other than the indication being studied).
  • Known or suspected hypersensitivity to study medications (including any rifamycin antibiotics)
  • Rifampicin-resistant and/or isoniazid-resistant bacteria detected with a sputum specimen collected within the pre-treatment period and tested at the study laboratory.
  • Clinically significant evidence of extrathoracic TB (miliary TB, abdominal TB, urogenital TB, osteoarthritic TB, TB meningitis), as judged by the investigator.
  • Current or past history of alcohol and/or drug use that, in the investigator's opinion, would compromise the participant's safety or compliance to the study protocol procedures.
  • HIV infected patients:
  • having a cluster of differentiation 4 (CD4)+ count 450 ms at screening;
  • History of additional risk factors for Torsade de Pointes, e.g., heart failure, hypokalemia, family history of Long QT Syndrome;
  • Use of concomitant medications that prolong the QT/QTc interval listed as disallowed medication in Section 2.10.2;
  • Pathological Q waves (defined as >40ms or depth >0.4-0.5mV);
  • Evidence of ventricular pre-excitation;
  • ECG evidence of complete or incomplete left bundle branch block or right bundle branch block;
  • Evidence of second or third degree heart block;
  • Intraventricular conduction delay with QRS duration >120ms;
  • Bradycardia as defined by sinus rate 1.5 times upper limit of normal [ULN]);
  • lipase grade 3 or greater (>2.0 x ULN);
  • hemoglobin grade 4 ( 8.0 x ULN) to be excluded, grade 3 (≥3.0 x ULN) must be discussed with Medical Monitor;
  • alanine aminotransferase (ALT) grade 4 (>8.0 x ULN) to be excluded, grade 3 (≥3.0 x ULN) must be discussed with Medical Monitor;
  • alkaline ph
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT01215110). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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