- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02651259
Evaluating PK, Tolerability, and Safety of Rifapentine and Isoniazid in Pregnant and Postpartum Women
A Phase I/II Trial of the Pharmacokinetics, Tolerability, and Safety of Once-Weekly Rifapentine and Isoniazid in HIV-1-infected and HIV-1-uninfected Pregnant and Postpartum Women With Latent Tuberculosis Infection
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
TB is a major cause of illness and death in women of reproductive age. Pregnant and postpartum women with latent TB are at higher risk of developing active TB. This study evaluated the pharmacokinetics, tolerability, and safety of 12 once-weekly doses of RPT and INH in HIV-1-infected and HIV-1-uninfected pregnant and postpartum women with latent TB.
This study enrolled HIV-1-infected and HIV-1-uninfected pregnant women with latent TB and their infants into two cohorts based on gestation. Cohort 1 participants were enrolled in their second trimester (greater than or equal to 14 to less than 28 weeks), and Cohort 2 participants were enrolled in their third trimester (greater than or equal to 28 to less than or equal to 34 weeks). All participants received 12 directly observed once-weekly doses of RPT, INH, and pyridoxine (vitamin B6) at study entry and at 11 weekly follow-up visits. Study researchers would perform an interim analysis to assess the PK of RPT during the study, and a dose adjustment could have been recommended based on this analysis.
Study visits occurred at days 0-3, once a week through week 11, and once a month until 24 weeks after delivery. Visits would include physical examinations, obstetrical exams, and blood collection. Infants were followed monthly until 24 weeks after birth.
Study Type
Enrollment (Actual)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Locations
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Port-au-Prince, Haiti, HT-6110
- Les Centres GHESKIO Clinical Research Site (GHESKIO-INLR) CRS
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Kericho, Kenya, 20200
- Kenya Medical Research Institute / Walter Reed Project Clinical Research Center, Kericho CRS
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Central Malawi
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Lilongwe, Central Malawi, Malawi
- Malawi CRS
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Bangkoknoi
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Bangkok, Bangkoknoi, Thailand, 10700
- Siriraj Hospital ,Mahidol University NICHD CRS
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Harare, Zimbabwe
- Harare Family Care CRS
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age greater than or equal to 18 years, or minimum age of consent according to locally applicable laws or regulations at screening, verified per site standard operating procedures (SOPs); and able and willing to provide written informed consent for study at screening
- At screening, evidence by ultrasound of a viable singleton pregnancy with an estimated gestational age at enrollment of greater than or equal to 14 weeks through less than or equal to 34 weeks as per screening ultrasound (see protocol for more information)
Had at least one of the following risk factors for TB:
- Per participant report, the participant was a household contact (see NOTE below) of a known active pulmonary TB patient
- Per medical records, confirmation of HIV-1 infection (see protocol for more information) and a single positive tuberculin skin test (TST) or interferon gamma release assay (IGRA) at any time in the past. If not available in medical record, perform at screening.
NOTE: A household contact was defined as a person who currently lives or lived in the same dwelling unit and shares or shared the same housekeeping arrangements and who reported exposure within the past two years to an adult index case with pulmonary TB. Shared housekeeping arrangements were defined as sleeping under the same roof as the index TB case for at least seven consecutive days during the one month prior to the index case TB diagnosis.
- Documentation of HIV-1 infection status, or confirmation of HIV-1 infection status (if unknown or undocumented). Confirmation of HIV-1 infection was defined as positive results from two samples (described in the protocol) collected at different time points. All samples tested must be whole blood, serum, or plasma. As this study was being conducted under an IND, all test methods should be FDA-approved, if available. If FDA-approved methods were not available, test methods should be verified according to Good Clinical Laboratory Practice (GCLP) and approved by the IMPAACT Laboratory Center. More information on this criterion was available in the protocol.
- If HIV-1-infected, documented current prescription of efavirenz (EFV) + 2 nucleoside reverse transcriptase inhibitor (NRTI) regimen and reported taking regimen for at least two weeks prior to enrollment (regimens containing protease, integrase, or entry inhibitors were not permitted)
Documented laboratory values obtained within 14 days prior to enrollment:
- Hemoglobin greater than or equal to 7.5 g/dL
- White blood cell count greater than or equal to 1500 cells/mm^3
- Alanine transaminase (ALT) less than 2.5 times the upper limit of normal (ULN)
- Total bilirubin less than 1.6 times the ULN
- Absolute neutrophil count (ANC) greater than or equal to 750 cells/mm^3
- Platelet count greater than or equal to 100,000/mm^3
- Per participant report at screening, intent to remain in the current geographical area of residence for the duration of the study
- Per participant report at screening, able to swallow whole tablets
- Per participant report, intention to keep the pregnancy
- Per participant report, willingness to permit infant to participate in the study
Exclusion Criteria:
- Evidence of confirmed or probable active TB disease per World Health Organization (WHO) symptom screen and confirmation by Gene Xpert, shielded chest x-ray, or sputum sample
- Participant report of personal history of INH- or rifampin-resistant, multi-drug resistant (MDR), or extensively drug-resistant (XDR) TB
- Participant report of personal history of active TB in the past 2 years
- Participant report of previous treatment for latent tuberculosis infection (LTBI)
- Household contact (as defined above) with known active MDR or XDR TB disease
- Known major fetal abnormality as detected on ultrasound
- Known allergy/sensitivity or any hypersensitivity to components of study drugs or their formulation
- Known history of liver cirrhosis at any time prior to study entry
- Per participant report and/or medical records, evidence of acute clinical hepatitis, such as a combination of abdominal pain, jaundice, dark urine, and/or light stools within 90 days prior to entry
- Participant report and/or medical records of peripheral neuropathy Grade 2 or higher within 90 days prior to entry
- Current use or history of active drug or alcohol use or dependence that, in the opinion of the site investigator, would interfere with adherence to study requirements
- Participant report and/or clinical evidence of porphyria
- Any other condition that, in the opinion of the investigator of record (IoR)/designee, would preclude informed consent, make study participation unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives, including taking the study medication
- Planned or current participation in an interventional drug study
- Current use of any prohibited or precautionary medications (see protocol for more information), including didanosine (DDI) or stavudine (D4T)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Cohort 1 (pregnant women enrolled in the second trimester)
Participants received 12 directly observed once-weekly doses of RPT, INH, and pyridoxine (vitamin B6) at study entry and at 11 weekly follow-up visits.
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900 mg of RPT
Other Names:
900 mg of INH
Other Names:
25 mg to 100 mg of pyridoxine, based on the current local, national, or international dosing guidelines.
Other Names:
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Experimental: Cohort 2 (pregnant women enrolled in the third trimester)
Participants received 12 directly observed once-weekly doses of RPT, INH, and pyridoxine (vitamin B6) at study entry and at 11 weekly follow-up visits.
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900 mg of RPT
Other Names:
900 mg of INH
Other Names:
25 mg to 100 mg of pyridoxine, based on the current local, national, or international dosing guidelines.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Clearance Relative to Bioavailability (CL/F) for Rifapentine (RPT) for Intensive and Sparse PK
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Clearance Relative to Bioavailability (CLmet/F) for Desacetyl Rifapentine (Des-RPT)
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Absorption Rate Constant (ka) for Rifapentine (RPT)
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Volume of Distribution Relative to Bioavailability (Vc/F) for Rifapentine (RPT)
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Incidence of Related Serious Adverse Events (SAEs) in Pregnant and Postpartum Women Taking Once-weekly RPT + INH
Time Frame: Measured from entry through participants' last study visit at 24 weeks after delivery
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At entry and follow-up, all lab results, sign and symptoms, and diagnoses were recorded.
Also, during follow-up grade 2 events related to pregnancy complications, hepatotoxicity, hemorrhage, or peripheral neuropathy, and all grade 3 or events that resulted in discontinuation of study drug regimen, and that met criteria for EAE reporting would further be evaluated and recorded.
The DAIDS Table for Grading Adult and Pediatric Adverse Events (V 2.0) and Expedited AE Manual (V 2.0) were used.
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Measured from entry through participants' last study visit at 24 weeks after delivery
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Percentage of Participants With Grade 2 Adverse Events (AEs) Judged to be Related to Study Drug Regimen
Time Frame: Measured from study entry through participants' last study visit at 24 weeks after delivery
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At entry and follow-up, all lab results, sign and symptoms, and diagnoses were recorded.
Also, during follow-up grade 2 events related to pregnancy complications, hepatotoxicity, hemorrhage, or peripheral neuropathy, and all grade 3 or events that resulted in discontinuation of study drug regimen, and that met criteria for EAE reporting would further be evaluated and recorded.
The DAIDS Table for Grading Adult and Pediatric Adverse Events (V 2.0) and Expedited AE Manual (V 2.0) and were used.
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Measured from study entry through participants' last study visit at 24 weeks after delivery
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Percentage of Participants With All Grade 3 and 4 AEs
Time Frame: Measured from study entry through participants' last study visit at 24 weeks after delivery
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At entry and follow-up, all lab results, sign and symptoms, and diagnoses were recorded.
Also, during follow-up grade 2 events related to pregnancy complications, hepatotoxicity, hemorrhage, or peripheral neuropathy, and all grade 3 or events that resulted in discontinuation of study drug regimen, and that met criteria for EAE reporting would further be evaluated and recorded.
The DAIDS Table for Grading Adult and Pediatric Adverse Events (V 2.0) and Expedited AE Manual (V 2.0) were used.
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Measured from study entry through participants' last study visit at 24 weeks after delivery
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Percentage of Participants With All Serious AEs
Time Frame: Measured from study entry through participants' last study visit at 24 weeks after delivery
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At entry and follow-up, all lab results, sign and symptoms, and diagnoses were recorded.
Also, during follow-up grade 2 events related to pregnancy complications, hepatotoxicity, hemorrhage, or peripheral neuropathy, and all grade 3 or events that resulted in discontinuation of study drug regimen, and that met criteria for EAE reporting would further be evaluated and recorded.
The DAIDS Table for Grading Adult and Pediatric Adverse Events (V 2.0) and Expedited AE Manual (V 2.0) were used.
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Measured from study entry through participants' last study visit at 24 weeks after delivery
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Percentage of Participants With All AEs Leading to Permanent Discontinuation of Study Drug Regimen (i.e., RPT, INH, and Pyridoxine)
Time Frame: Measured from study entry through participants' last study treatment dispensation (approximately for 12 weeks)
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At entry and follow-up, all lab results, sign and symptoms, and diagnoses were recorded.
Also, during follow-up grade 2 events related to pregnancy complications, hepatotoxicity, hemorrhage, or peripheral neuropathy, and all grade 3 or events that resulted in discontinuation of study drug regimen, and that met criteria for EAE reporting would further be evaluated and recorded.
The DAIDS Table for Grading Adult and Pediatric Adverse Events (V 2.0) and Expedited AE Manual (V 2.0) were used.
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Measured from study entry through participants' last study treatment dispensation (approximately for 12 weeks)
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Percentage of Participants With Related Serious Adverse Events (AEs) in Infants Born to Women Taking Once-weekly RPT + INH
Time Frame: Measured from birth through infants' last study visit at 24 weeks after birth
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At entry and follow-up, all lab results, sign and symptoms, and diagnoses were recorded.
Also, during follow-up grade 2 events related to pregnancy complications, hepatotoxicity, hemorrhage, or peripheral neuropathy, and all grade 3 or events that resulted in discontinuation of study drug regimen, and that met criteria for EAE reporting would further be evaluated and recorded.
The DAIDS Table for Grading Adult and Pediatric Adverse Events (V 2.0) and Expedited AE Manual (V 2.0) were used.
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Measured from birth through infants' last study visit at 24 weeks after birth
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Clearance Relative to Bioavailability (CL/F) for Rifapentine (RPT)
Time Frame: Data used in the population PK analysis for postpartum women included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters from postpartum women were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis for postpartum women included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Area Under the Curve From 0 to 24 Hours (AUC0-24) for RPT and Area Under the Curve From 0 to 24 Hours (AUC0-24) for Des-RPT Pregnant Women in 2nd and 3rd Trimester
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Maximum Concentration (Cmax) for RPT Maximum Concentration (Cmax) for Des-RPT Pregnant Women in 2nd and 3rd Trimester
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Maximum Concentration (Cmin) for RPT and Maximum Concentration (Cmin) for Des-RPT Pregnant Women in 2nd and 3rd Trimester
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Cord Blood Concentrations of Rifapentine (RPT) Among Infants
Time Frame: at delivery - (within 3 days of life for infants)
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Cord blood concentrations were summarized using using R (version 3.5.1).
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at delivery - (within 3 days of life for infants)
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Plasma Concentrations of Rifapentine (RPT) Among Infants
Time Frame: at delivery - (within 3 days of life for infants).
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Plasma concentrations were summarized using using R (version 3.5.1).
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at delivery - (within 3 days of life for infants).
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Cord Blood Concentrations of Desacetyl Rifapentine (Des-RPT) Among Infants
Time Frame: at delivery (within 3 days of life for infants).
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Cord blood concentrations were summarized using using R (version 3.5.1).
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at delivery (within 3 days of life for infants).
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Plasma Concentrations of Desacetyl Rifapentine (Des-RPT) Among Infants
Time Frame: at delivery - (within 3 days of life for infants).
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Plasma blood concentrations were summarized using using R (version 3.5.1).
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at delivery - (within 3 days of life for infants).
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Number of Participants With Discontinuation of Study Drug Due to Intolerance (Tolerability of Study Drug Regimen - i.e., RPT, INH, and Pyridoxine)
Time Frame: Measured from study entry through participants' last study visit at 24 weeks after delivery
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At entry and follow-up, all lab results, sign and symptoms, and diagnoses will be recorded.
Also, during follow-up grade 2 events related to pregnancy complications, hepatotoxicity, hemorrhage, or peripheral neuropathy, and all grade 3 or events that result in discontinuation of study drug regimen, and that meet criteria for EAE reporting will be further evaluated and recorded.
The DAIDS Table for Grading Adult and Pediatric Adverse Events (V 2.0) and Expedited AE Manual (V 2.0) were used.
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Measured from study entry through participants' last study visit at 24 weeks after delivery
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Number of Mothers With Active TB up to 24 Weeks Postpartum
Time Frame: Measured from study entry through participants' last study visit at 24 weeks after delivery
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Based on site-specified confirmatory TB test.
If women and infants were diagnosed with active TB during study they would be referred to local care for TB management and treatment.
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Measured from study entry through participants' last study visit at 24 weeks after delivery
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Number of Infants With Active TB up to 24 Weeks of Life
Time Frame: Measured from birth through participants' last study visit at 24 weeks after delivery
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Based on site-specified confirmatory TB test.
If women and infants were diagnosed with active TB during study they would be referred to local care for TB management and treatment.
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Measured from birth through participants' last study visit at 24 weeks after delivery
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Clearance (CL/F) of INH
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland).
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Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Absorption (ka) of INH
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland). • Estimated a single absorption rate constant (ka) for the whole population |
Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Volume of Distribution of INH
Time Frame: Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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PK parameters were determined from plasma concentration-time profiles using a nonlinear mixed effects model (version 7.4; ICON PLC, Dublin, Ireland). • Estimated a single INH Vc/F for the whole population |
Data used in the population PK analysis included the intensive PK visit (pre-dose (t0) and 0.5, 1, 2. 4, 5, 8, 12, 24, 48, 72 hours post-dose) and sparse PK visit (1, 4, 24, 48 hours post-dose).
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Collaborators and Investigators
Investigators
- Study Chair: Jyoti S. Mathad, MD, MSc, Weill Medical College of Cornell University
Publications and helpful links
Helpful Links
- Severity and laboratory tests will be graded per the DAIDS Table for Grading Adult and Pediatric Adverse Events, Version 2.0(dated November 2014 available on the RSC website)
- Requirements, definitions and methods for expedited reporting of adverse events (AEs) are outlined in Version 2.0 of the DAIDS EAE Manual
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Infections
- Bacterial Infections
- Bacterial Infections and Mycoses
- Gram-Positive Bacterial Infections
- Actinomycetales Infections
- Mycobacterium Infections
- Tuberculosis
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Antimetabolites
- Antineoplastic Agents
- Micronutrients
- Hypolipidemic Agents
- Lipid Regulating Agents
- Anti-Bacterial Agents
- Leprostatic Agents
- Antitubercular Agents
- Antibiotics, Antitubercular
- Fatty Acid Synthesis Inhibitors
- Rifapentine
- Vitamins
- Vitamin B Complex
- Vitamin B 6
- Pyridoxal
- Pyridoxine
- Isoniazid
- Rifamycins
- Hydrazine
Other Study ID Numbers
- IMPAACT 2001
- 12026 (Registry Identifier: DAIDS-ES)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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