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A Phase 1, Drug-Drug Interaction Study of TBAJ-876 in Healthy Adults

A Phase 1, Drug-Drug Interaction Study to Evaluate the Safety, Tolerability, and the Induction Potential of TBAJ-876 on CYP3A4 and P-glycoprotein and the Inhibition Potential of TBAJ-876 on P-glycoprotein in Healthy Adult Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05526911
Enrollment
28
Registered
2022-09-02
Start date
2022-06-30
Completion date
2022-09-26
Last updated
2024-10-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pulmonary Disease, Tuberculosis, Pulmonary, Tuberculosis, Multi Drug Resistant Tuberculosis, Drug Sensitive Tuberculosis, Drug-resistant Tuberculosis, Mycobacterium Tuberculosis Infection

Keywords

TBAJ-876, Diarylquinoline, DARQ

Brief summary

A Phase 1, Drug-Drug Interaction Study to Evaluate the Safety, Tolerability, and the Induction Potential of TBAJ-876 on CYP3A4 and P-glycoprotein and the Inhibition Potential of TBAJ-876 on P-glycoprotein in Healthy Adult Subjects

Detailed description

This study was a two-part, open-label drug-drug interaction study conducted in one study center in the United States. Two groups were planned, Group 1 and Group 2. Group 2 to be conducted based on the Group 1 results. Group 1 to assess the induction potential of TBAJ-876 on the sensitive CYP3A4 substrate midazolam (M) and inhibition and induction potential of TBAJ-876 on the sensitive P-glycoprotein substrate Digoxin (D). Group 2 was only to be conducted if the results of Group 1 show that TBAJ-876 is a moderate inducer of either CYP3A4 (geometric mean ratio \[GMR\] of midazolam area under the curve \[AUC\] \<0.50 when co-administered with TBAJ-876) or P-glycoprotein (GMR of digoxin AUC \<0.50 when co-administered with TBAJ-876) or a moderate inhibitor of P-glycoprotein (GMR of digoxin AUC ≥2.0 when co-administered with TBAJ-876). These results were used to decide that a second phase of the study was not needed. If Group 1 concluded that TBAJ-876 is a moderate inducer or inhibitor, Group 2 had intended to quantify the magnitude of inhibition or induction of TBAJ-876 of the antiretroviral regimen TLD, a fixed dose combination of tenofovir disoproxil fumarate (TFD), lamivudine (3TC) and dolutegravir (DTG), a regimen likely to be used in future clinical studies of TBAJ-876 by subjects living with HIV Safety was assessed throughout the study for all subjects. Safety assessments included physical examinations, vital signs, serial ECGs, adverse events (AEs), clinical and laboratory tests (including hematology, serum chemistry, coagulation, and urinalysis).

Interventions

* Day 6 to Day 13: 200 mg TBAJ-876 oral suspension, fed * Day 14 to Day 19: 165 mg TBAJ-876 oral suspension, fed * Day 20 and Day 21: 200 mg TBAJ-876 oral suspension, fasting * Day 22 to Day 24: 150 mg TBAJ-876 oral suspension, fed

DRUGMidazolam

Day 1 and Day 20: Midazolam oral syrup: 2 mg, fasted

DRUGDigoxin

Day 2 and Day 21: Digoxin tablet: 0.25 mg, fasted

Sponsors

Global Alliance for TB Drug Development
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

Key Inclusion Criteria: * Is a healthy adult male or female, 18 to 55 years of age (inclusive) at the time of screening. * Has a body mass index (BMI) ≥18.5 and ≤32.0 (kg/m2) and a body weight of no less than 50.0 kg at the time of screening and check-in. * Is medically healthy with no clinically significant screening results (e.g., laboratory profiles normal or up to Grade 1 per Division of Microbiology and Infectious Diseases (DMID) Toxicity Tables), as deemed by the Investigator. * Has not used tobacco- or nicotine-containing products (including smoking cessation products), for a minimum of 6 months before dosing. * Is willing and able to consume the entire high-calorie, high-fat breakfast meal in the timeframe required. Key

Exclusion criteria

* History or presence of significant cardiovascular abnormalities, heart murmur, pulmonary, hepatic, renal, haematological, gastrointestinal, endocrine, immunologic, dermatologic, neurological, or psychiatric disease as determined by the Investigator to be clinically relevant. * Any musculoskeletal abnormality (severe tenderness with marked impairment of activity) or musculoskeletal toxicity (frank necrosis). * Positive results at screening for Human Immunodeficiency Virus (HIV), Hepatitis B Surface Antigen (HBsAg), or Hepatitis C antibodies (HCV). * Positive Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) results within 6 days prior to Day 1. * Current or history of prolonged QT syndrome. * Family history of Long-QT Syndrome or sudden death without a preceding diagnosis of a condition that could be causative of sudden death (such as known coronary artery disease, congestive heart failure or terminal cancer). * Use of any drugs or substances known to be inducers of CYP enzymes and/or P-gp, including St. John's Wort, within 30 days prior to the first dose of study drug. * Is lactose intolerant. * History or presence of allergic, or adverse response to midazolam, digoxin, dolutegravir, tenofovir, lamivudine or any related drugs.

Design outcomes

Primary

MeasureTime frameDescription
TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Geometric Mean RatiosDay 1: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours; Day 20: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hoursGeometric mean ratio of midazolam's area under the (plasma concentration vs. time) curve and Cmax when co-administered with TBAJ-876 versus when administered alone. Inference will be based on analysis of variance applied to log-transformed parameters.
TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters AUCDay 1: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours; Day 20: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hoursGeometric mean and range of midazolam's area under the (plasma concentration vs. time) curve when co-administered with TBAJ-876 versus when administered alone.
TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters CMAXDay 1: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours; Day 20: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hoursGeometric mean and range of midazolam's maximum concentration when co-administered with TBAJ-876 versus when administered alone.
TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Geometric Mean RatioDay 2: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours; Day 21: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hoursGeometric mean ratio of digoxin's area under the (plasma concentration vs. time) curve and Cmax when co-administered with TBAJ-876 versus when administered alone, and similarly for the maximum concentration. Inference will be based on analysis of variance applied to log-transformed parameters.
TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters AUCDay 2: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours; Day 21: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hoursGeometric mean of digoxin's area under the (plasma concentration vs. time) curve when co-administered with TBAJ-876 versus when administered alone, and similarly for the maximum concentration.
TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters CMAXDay 2: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours; Day 21: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hoursGeometric mean of digoxin's Cmax when co-administered with TBAJ-876 versus when administered alone, and similarly for the maximum concentration.

Secondary

MeasureTime frameDescription
Number of Participants With Treatment-Related Adverse Events (TEAE) in Group 1 Populationfrom date of the start of treatment to the end of study at 25 daysParticipants will be monitored for any adverse events from the signing of the consent form until the end-of-study visit. The Investigator or a Sub-Investigator will assess its relationship to the study drug. Note about ST segment elevation which was reported as a treatment-related adverse event. Upon review of the screening ECG, early repolarization was noted and therefore the ST segment elevation was considered pre-existing and not a TEAE however the AE remained in the database instead of being removed.

Countries

United States

Participant flow

Recruitment details

A total of 75 subjects were screened for the trial of whom 47 failed screening, 28 were randomized, and 26 completed treatment.

Pre-assignment details

No participants were assigned to Group 2

Participants by arm

ArmCount
Group 1
The pharmacokinetics of midazolam, a CYP3A4 substrate, and digoxin, a P-gp substrate, will be studied before and after dosing with TBAJ-876. TBAJ-876: • Day 6 to Day 13: 200 mg TBAJ-876 oral suspension, fed * Day 14 to Day 19: 165 mg TBAJ-876 oral suspension, fed * Day 20 and Day 21: 200 mg TBAJ-876 oral suspension, fasting * Day 22 to Day 24: 150 mg TBAJ-876 oral suspension, fed Midazolam: Day 1 and Day 20: Midazolam oral syrup: 2 mg, fasted Digoxin: Day 2 and Day 21: Digoxin tablet: 0.25 mg, fasted
28
Total28

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event2

Baseline characteristics

CharacteristicGroup 1
Age, Continuous37.1 years
STANDARD_DEVIATION 9.8
BMI at Screening28 kilogram per meter squared
STANDARD_DEVIATION 8.03
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
20 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Height at Screening167.3 centimeters
STANDARD_DEVIATION 10.41
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
20 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
8 Participants
Region of Enrollment
United States
28 Participants
Sex: Female, Male
Female
14 Participants
Sex: Female, Male
Male
14 Participants
Weight at Screening78.2 Kilogram
STANDARD_DEVIATION 19.86

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 28
other
Total, other adverse events
9 / 28
serious
Total, serious adverse events
0 / 28

Outcome results

Primary

TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Geometric Mean Ratios

Geometric mean ratio of midazolam's area under the (plasma concentration vs. time) curve and Cmax when co-administered with TBAJ-876 versus when administered alone. Inference will be based on analysis of variance applied to log-transformed parameters.

Time frame: Day 1: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours; Day 20: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours

Population: All participants who completed the study were included. Participants were excluded from AUC 0-inf analysis if they did not have at least 3 observations presented along what appears to be a terminal elimination phase when individual subject plots of each analyte concentration vs time were inspected visually to identify log-linear terminal segments corresponding to an exponential elimination phase.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Geometric Mean RatiosAUC 0-last Ratio of geometric means of midazolam with TBAJ-876 to midazolam alone0.94 ratio of geometric mean
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Geometric Mean RatiosAUC 0-inf Ratio of geometric means of midazolam with TBAJ-876 to midazolam alone1 ratio of geometric mean
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Geometric Mean RatiosCmax Ratio of geometric means of midazolam with TBAJ-876 to midazolam alone.86 ratio of geometric mean
Primary

TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters AUC

Geometric mean and range of midazolam's area under the (plasma concentration vs. time) curve when co-administered with TBAJ-876 versus when administered alone.

Time frame: Day 1: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours; Day 20: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours

Population: All participants enrolled in the study were included. Participants who were withdrawn prior to Day 20 are not included in the analysis with TBAJ-876. Participants were excluded from AUC 0-inf analysis if they did not have at least 3 observations presented along what appears to be a terminal elimination phase when individual subject plots of each analyte concentration vs time were inspected visually to identify log-linear terminal segments corresponding to an exponential elimination phase.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters AUCArea under curve from time 0 hours to last quantifiable concentration (AUC 0-last), with TBAJ-87622.64 ng.hr/mL
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters AUCAUC 0-last, alone25.22 ng.hr/mL
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters AUCArea under the curve from time 0 hours to infinity (AUC 0-inf), with TBAJ-87624.28 ng.hr/mL
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters AUCAUC 0-inf, alone25.68 ng.hr/mL
Primary

TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters CMAX

Geometric mean and range of midazolam's maximum concentration when co-administered with TBAJ-876 versus when administered alone.

Time frame: Day 1: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours; Day 20: pre-dose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24 hours

Population: All participants enrolled in the study were included. Participants who were withdrawn prior to Day 20 are not included in the analysis with TBAJ-876.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters CMAXMaximum Concentration (Cmax), with TBAJ-8767.26 ng/mL
Group 1TBAJ-876 Effect on the Pharmacokinetics of the CYP-3A4 Substrate Midazolam in Healthy Adult Subjects: Pharmacokinetic Parameters CMAXCmax, alone8.90 ng/mL
Primary

TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Geometric Mean Ratio

Geometric mean ratio of digoxin's area under the (plasma concentration vs. time) curve and Cmax when co-administered with TBAJ-876 versus when administered alone, and similarly for the maximum concentration. Inference will be based on analysis of variance applied to log-transformed parameters.

Time frame: Day 2: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours; Day 21: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours

Population: All participants who completed the study were included.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Geometric Mean RatioAUC 0-last Ratio of geometric means of digoxin with TBAJ-876 to digoxin alone1.51 ratio of geometric mean
Group 1TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Geometric Mean RatioCmax Ratio of geometric means of digoxin with TBAJ-876 to digoxin alone1.18 ratio of geometric mean
Primary

TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters AUC

Geometric mean of digoxin's area under the (plasma concentration vs. time) curve when co-administered with TBAJ-876 versus when administered alone, and similarly for the maximum concentration.

Time frame: Day 2: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours; Day 21: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours

Population: All participants who completed the study were included. Participants were excluded from AUC 0-inf analysis if they did not have at least 3 observations presented along what appears to be a terminal elimination phase when individual subject plots of each analyte concentration vs time were inspected visually to identify log-linear terminal segments corresponding to an exponential elimination phase.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters AUCAUC 0-last, with TBAJ-87611.57 ng.hr/mL
Group 1TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters AUCAUC 0-last, alone7.64 ng.hr/mL
Group 1TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters AUCAUC 0-inf, with TBAJ-87624.57 ng.hr/mL
Group 1TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters AUCAUC 0-inf, alone23.44 ng.hr/mL
Primary

TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters CMAX

Geometric mean of digoxin's Cmax when co-administered with TBAJ-876 versus when administered alone, and similarly for the maximum concentration.

Time frame: Day 2: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours; Day 21: pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours

Population: All participants who completed the study were included.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters CMAXCmax, alone1.01 ng/mL
Group 1TBAJ-876 Effect on the Pharmacokinetics of the P-gp Substrate Digoxin: Pharmacokinetic Parameters CMAXCmax, with TBAJ-8761.19 ng/mL
Secondary

Number of Participants With Treatment-Related Adverse Events (TEAE) in Group 1 Population

Participants will be monitored for any adverse events from the signing of the consent form until the end-of-study visit. The Investigator or a Sub-Investigator will assess its relationship to the study drug. Note about ST segment elevation which was reported as a treatment-related adverse event. Upon review of the screening ECG, early repolarization was noted and therefore the ST segment elevation was considered pre-existing and not a TEAE however the AE remained in the database instead of being removed.

Time frame: from date of the start of treatment to the end of study at 25 days

Population: Enrolled participants will be monitored for any adverse events from the signing of the consent form until the end-of-study visit

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Group 1Number of Participants With Treatment-Related Adverse Events (TEAE) in Group 1 Population5 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026