PNU-100480 In Newly Diagnosed, Drug Sensitive Patients With Pulmonary TB; Early Bactericidal Activity; Whole Blood Assay
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ClinicalTrials.gov Identifier: NCT01225640 |
Recruitment Status :
Completed
First Posted : October 21, 2010
Last Update Posted : January 14, 2016
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Tuberculosis | Drug: PNU-100480 Drug: RHZE | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 59 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 2a, Open-Label, Randomized Study In Treatment-Naive, Sputum Smear Positive Subjects With Drug-Sensitive Pulmonary Tuberculosis To Assess Early Bactericidal Activity (EBA) And Whole Blood Activity (WBA) Of PNU-100480 (PF-02341272) |
Study Start Date : | August 2011 |
Actual Primary Completion Date : | December 2011 |
Actual Study Completion Date : | December 2011 |

Arm | Intervention/treatment |
---|---|
Experimental: PNU-100480 600 mg BID |
Drug: PNU-100480
600 mg twice daily (BID) for 14 days |
Experimental: PNU-100480 1200 mg QD |
Drug: PNU-100480
1200 mg once daily (QD) for 14 days |
Active Comparator: RHZE
conjugated tablet with 4 drug combination of RHZE, Rifafour® e275 will be used in countries where can be sourced locally
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Drug: RHZE
Combination tablet (RHZE) dosed by weight. Dosage strength per tablet is 150 mg Rifampicin (R)/75 mg Isoniazid (H)/400 mg Pyrazinamide (Z)/275 mg Ethambutol (E)
Other Name: Rifafour, Rimstar |
- The primary endpoint is rate of change in sputum log CFU/mL count (EBA) from Days 0-2. [ Time Frame: Days 0-2 ]
- Rate of change in sputum log CFU/mL count (extended EBA). [ Time Frame: Days 2-14 ]
- Rate of change in sputum log CFU/mL count (extended EBA). [ Time Frame: Days 0-14 ]
- Rate of change in culture time to positivity (TTP) measured by MGIT and in log transformed TTP [ Time Frame: Days 02-; 2-14; 0-14 ]
- Cumulative whole blood bactericidal activity (measured as log reduction in CFU) against intracellular M. tuberculosis relative to administered dose and drug PK [ Time Frame: Day 1 ]
- Cumulative whole blood bactericidal activity (measured as log reduction in CFU) against intracellular M. tuberculosis relative to administered dose and drug PK [ Time Frame: Day 13-14 ]
- Plasma concentrations of PNU-100480 and PNU-101603 will be used to determine PK parameters (AUCtau, AUC tau,ss, Cmax, Tmax, terminal half-life t1/2, Cavg, Rac) as data permit [ Time Frame: Day 1 ]
- Plasma concentrations of PNU-100480 and PNU-101603 will be used to determine PK parameters (AUCtau, AUC tau,ss, Cmax, Tmax, terminal half-life t1/2, Cavg, Rac) as data permit [ Time Frame: Day 13-14 ]
- Safety assessments including physical exams, AEs, laboratory tests, ECGs, and vital signs. [ Time Frame: Phys exam, AEs, and vitals are done at every visit (Screening through Day 15, Day 42/Follow-up) ]
- Safety assessments including physical exams, AEs, laboratory tests, ECGs, and vital signs. [ Time Frame: ECGs are done at Screening, Day 1, Day 14, 15 and 42/Follow-up ]
- Safety assessments including physical exams, AEs, laboratory tests, ECGs, and vital signs. [ Time Frame: Lab tests at Screening, Day 1, Day 15 and 42/Follow-up ]

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Adult males or females between 18 and 65 years; women of childbearing potential must be willing to adhere to lifestyle requirements regarding contraception/pregnancy prevention.
- Newly diagnosed sputum smear-positive pulmonary TB confirmed with acid-fast bacillus (AFB) smear and chest x-ray. Patients with TB more than 5 years ago who completed treatment, are healthy, and meet other inclusion criteria may be included.
- Body weight between 40 and 90 kg, inclusive (in light clothing, no shoes).
- Reasonably normal hemoglobin (>=8 gm/dL), renal function (serum creatinine <2 mg/dL), hepatic function (serum AST <3xULN and total bilirubin <1.3 mg/dL), and random glucose <150 mg/dL.
Exclusion Criteria:
- HIV infection with helper/inducer T-lymphocytes (CD4 cell) count of <=350x10-6/L.
- Presence of significant hemoptysis. Subjects who cough up frank blood (more than blood streaked sputum) will not be eligible.
- Pregnant or nursing females; females of childbearing potential unwilling or unable to adhere to contraception guidelines.
- Significant respiratory impairment (respiratory rate >35/minute).
- Clinical suspicion of disseminated TB or tuberculosis meningitis.
- Subjects with diabetes mellitus on insulin and/or who have poorly controlled disease.
- Subjects with confirmed or suspected multi-drug resistant TB.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01225640
South Africa | |
Pfizer Investigational Site | |
Bellville, Cape Town, South Africa, 7530 | |
Pfizer Investigational Site | |
Cape Town, South Africa, 7700 |
Study Director: | Lisa Beth Ferstenberg, M.D. | Sequella, Inc. |
Responsible Party: | Sequella, Inc. |
ClinicalTrials.gov Identifier: | NCT01225640 |
Other Study ID Numbers: |
B1171003 |
First Posted: | October 21, 2010 Key Record Dates |
Last Update Posted: | January 14, 2016 |
Last Verified: | December 2015 |
Tuberculosis EBA WBA |
Tuberculosis Mycobacterium Infections Actinomycetales Infections Gram-Positive Bacterial Infections Bacterial Infections Bacterial Infections and Mycoses |
Infections Oxazolidinones Anti-Infective Agents Protein Synthesis Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action |