Trial Outcomes & Findings for Statin Adjunctive Therapy for TB (NCT NCT03456102)

NCT ID: NCT03456102

Last Updated: 2023-06-28

Results Overview

Safety of escalating doses of pravastatin (40 mg - 160 mg) when co-administered with rifampin, as evidenced by number of Grade 3 or higher adverse events.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

16 participants

Primary outcome timeframe

Up to 30 days

Results posted on

2023-06-28

Participant Flow

Study participants were recruited from clinics in Soweto, South Africa by the study team at the PHRU, Chris Hani Baragwanath Academic Hospital, Soweto, South Africa. Participants were recruited based on having a sputum specimen that is positive for TB by GeneXpert MTB/RIF.

Participant milestones

Participant milestones
Measure
Pravastatin 40 mg
Pravastatin 40 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 4 will only be recruited if pravastatin 80 mg is not tolerated as specified in protocol. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 80 mg
Pravastatin 80 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 2 will only be recruited if pravastatin 80 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 120 mg
Pravastatin 120 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 3 will only be recruited if pravastatin 120 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 160 mg
Pravastatin 160 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Overall Study
STARTED
10
6
0
0
Overall Study
COMPLETED
10
6
0
0
Overall Study
NOT COMPLETED
0
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Statin Adjunctive Therapy for TB

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Pravastatin 40 mg
n=10 Participants
Pravastatin 40 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 4 will only be recruited if pravastatin 80 mg is not tolerated as specified in protocol. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 80 mg
n=6 Participants
Pravastatin 80 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 2 will only be recruited if pravastatin 80 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 120 mg
Pravastatin 120 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 3 will only be recruited if pravastatin 120 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 160 mg
Pravastatin 160 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Total
n=16 Participants
Total of all reporting groups
Age, Continuous
26.70 years
STANDARD_DEVIATION 5.35 • n=5 Participants
26.83 years
STANDARD_DEVIATION 7.03 • n=7 Participants
26.75 years
STANDARD_DEVIATION 5.80 • n=21 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=21 Participants
Sex: Female, Male
Male
7 Participants
n=5 Participants
4 Participants
n=7 Participants
11 Participants
n=21 Participants
Race/Ethnicity, Customized
African/Black
10 Participants
n=5 Participants
6 Participants
n=7 Participants
16 Participants
n=21 Participants
Race/Ethnicity, Customized
Coloured
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=21 Participants
Race/Ethnicity, Customized
Indian/Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=21 Participants
Race/Ethnicity, Customized
White
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=21 Participants
Race/Ethnicity, Customized
Other
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=21 Participants
Region of Enrollment
South Africa
10 Participants
n=5 Participants
6 Participants
n=7 Participants
16 Participants
n=21 Participants
Weight at Baseline (kg)
45-49kg
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=21 Participants
Weight at Baseline (kg)
50-59kg
7 Participants
n=5 Participants
4 Participants
n=7 Participants
11 Participants
n=21 Participants
Weight at Baseline (kg)
60-69kg
2 Participants
n=5 Participants
2 Participants
n=7 Participants
4 Participants
n=21 Participants
HIV Status
Negative
10 Participants
n=5 Participants
6 Participants
n=7 Participants
16 Participants
n=21 Participants
HIV Status
Positive
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=21 Participants

PRIMARY outcome

Timeframe: Up to 30 days

Population: Participants were not enrolled in Arms 3 and 4 due to early termination.

Safety of escalating doses of pravastatin (40 mg - 160 mg) when co-administered with rifampin, as evidenced by number of Grade 3 or higher adverse events.

Outcome measures

Outcome measures
Measure
Pravastatin 40 mg
n=10 Participants
Pravastatin 40 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 80 mg
n=6 Participants
Pravastatin 80 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 2 will only be recruited if pravastatin 40 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 120 mg
Pravastatin 120 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 3 will only be recruited if pravastatin 80 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 160 mg
Pravastatin 160 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 4 will only be recruited if pravastatin 120 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Safety of Escalating Doses of Pravastatin as Assessed by Number of Adverse Events
8 AEs Grade 3 or Higher
4 AEs Grade 3 or Higher

Adverse Events

Pravastatin 40 mg

Serious events: 4 serious events
Other events: 5 other events
Deaths: 0 deaths

Pravastatin 80 mg

Serious events: 1 serious events
Other events: 3 other events
Deaths: 0 deaths

Pravastatin 120 mg

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Pravastatin 160 mg

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Pravastatin 40 mg
n=10 participants at risk
Pravastatin 40 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 80 mg
n=6 participants at risk
Pravastatin 80 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 2 will only be recruited if pravastatin 40 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 120 mg
Pravastatin 120 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 3 will only be recruited if pravastatin 80 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 160 mg
Pravastatin 160 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 4 will only be recruited if pravastatin 120 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Investigations
Elevated Uric Acid
30.0%
3/10 • Number of events 3 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
16.7%
1/6 • Number of events 1 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
Investigations
Elevated liver enzymes (ALT/AST)
10.0%
1/10 • Number of events 1 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0.00%
0/6 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.

Other adverse events

Other adverse events
Measure
Pravastatin 40 mg
n=10 participants at risk
Pravastatin 40 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 80 mg
n=6 participants at risk
Pravastatin 80 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 2 will only be recruited if pravastatin 40 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 120 mg
Pravastatin 120 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 3 will only be recruited if pravastatin 80 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Pravastatin 160 mg
Pravastatin 160 mg, isoniazid 300 mg, rifampin 450 mg (weight \<50 kg) or 600 mg (weight \>50 kg), pyrazinamide 20-25 mg/kg, and ethambutol 15-20 mg/kg daily for 14 days Arm 4 will only be recruited if pravastatin 120 mg is well tolerated and safe, yet drug exposures are significantly reduced due to the known interaction with rifampin. Pravastatin: Phase IIB clinical trial: A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated. A two-week safety/PK study to determine pravastatin exposures over 24 hours when given together with first-line treatment (HRZE) and ensure the combination is safe and well-tolerated.
Investigations
Elevated liver enzymes (ALT/AST)
10.0%
1/10 • Number of events 1 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0.00%
0/6 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
Investigations
Elevated creatinine kinase
10.0%
1/10 • Number of events 1 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0.00%
0/6 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
Investigations
Elevated uric acid
20.0%
2/10 • Number of events 2 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
50.0%
3/6 • Number of events 3 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
Investigations
Decreased hemoglobin level
10.0%
1/10 • Number of events 1 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0.00%
0/6 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.
0/0 • Up to 5 months.
No patients were enrolled in Study Arms 3 and 4 due to early termination.

Additional Information

Petros C. Karakousis, MD

Johns Hopkins University School of Medicine

Phone: 410-502-8233

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place