A Phase 1 interventional study of Voxelotor and Bupropion in Sickle Cell Disease, sponsored by Pfizer. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-11-22.
Sponsored by Pfizer · Phase 1, Interventional, and Basic science
This research study is examining multiple doses of voxelotor (a study drug intended for treatment of sickle cell disease) and how it interacts with additional substrates (substrates are drugs or other substances that are metabolized by cytochrome enzymes. The substrates used in this study are FDA approved medications). The study will help to determine the safety and tolerability of the study drugs taken together, as well as the pharmacokinetics (PK) on how your body processes and responds to the combination of the study drug and substrates. Although these drugs are FDA approved, their use in this study is experimental.
This is an open-label, fixed-sequence, 2-period evaluation study. This means the study doctor and participants in the study will know what study drugs they are taking. There will be approximately 46 healthy male and female participants between the ages of 18 - 55. There will be two parts of the study: parts A and B.
Part A will consist of 26 healthy male and female participants (at least 20% African American). For Part A, participant involvement is expected to last approximately 81 days, including a 33-day screening period and a 48-day on study period (consisting of 2 study treatment periods, a washout period lasting 7 to 14 days, and the Follow-up visit).
Part B will consist of 20 healthy male and female participants (at least 20% African American). For Part B, participant involvement is expected to last approximately 68 days, including a 33-day screening period and a 35-day on study period (consisting of 2 study treatment periods, a washout period lasting 7 to 14 days, and the Follow-up visit).
You will only be allowed to be in one part of the study.
1,103 studies on the registry are indexed under Anemia, Sickle Cell; 235 are open to participants now.
This study's enrollment of 44 is close to the median of 40 across 750 interventional studies indexed under Anemia, Sickle Cell.
Browse Anemia, Sickle Cell studies →Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.
Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.
Counted across the registry records on this site, refreshed daily.
Males or females ≥ 18 and ≤ 55 years of age inclusive, at the time of signing the informed consent.
Exclusion Criteria:
History or presence of clinically significant allergic diseases (except for untreated,
asymptomatic, seasonal allergies) at time of screening in the opinion of the Investigator.
Participant has an allergy or sensitivity to voxelotor, bupropion, repaglinide, flurbiprofen, omeprazole, or midazolam.
Part B only
To evaluate the effect of multiple doses of voxelotor on the plasma pharmacokinetics (PK) of a single dose of bupropion, repaglinide, flurbiprofen, omeprazole, and midazolam
Drug: Voxelotor · Drug: Bupropion · Drug: Repaglinide · Drug: Flurbiprofen · Drug: Omeprazole · Drug: Midazolam
To evaluate the effect of multiple doses of voxelotor on the plasma PK of a single dose of metformin, furosemide, and rosuvastatin
Drug: Voxelotor · Drug: Metformin · Drug: Furosemide · Drug: Rosuvastatin
Drug drug interaction
Also known as: Oxbryta
Drug drug interaction
Also known as: Wellbutrin
Drug drug interaction
Also known as: Prandin
Drug drug interaction
Also known as: Ansaid
Drug drug interaction
Also known as: Prilosec
Drug drug interaction
Also known as: Dormicum
Drug drug interaction
Also known as: Glucophage
Drug drug interaction
Also known as: Lasix
Drug drug interaction
Also known as: Crestor
Part A: Maximum Observed Plasma Concentration (Cmax) for Bupropion
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: Cmax for Repaglinide
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, and 24 hours post-dose on Period 1 Day 4 and Period 2 Day 6 for Treatment B and F, respectively
Part A: Cmax for Flurbiprofen
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Cmax for Omeprazole
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Cmax for Midazolam
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Area Under the Plasma Concentration-Time Curve From Time Zero (0) to the Time of the Last Quantifiable Concentration (AUCt) for Bupropion
AUCt was calculated using the linear/log trapezoidal rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: AUCt for Repaglinide
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, and 24 hours post-dose on Period 1 Day 4 and Period 2 Day 6 for Treatment B and F, respectively
Part A: AUCt for Flurbiprofen
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: AUCt for Omeprazole
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: AUCt for Midazolam
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf) for Bupropion
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: AUCinf for Repaglinide
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, and 24 hours post-dose on Period 1 Day 4 and Period 2 Day 6 for Treatment B and F, respectively
Part A: AUCinf for Flurbiprofen
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: AUCinf for Omeprazole
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: AUCinf for Midazolam
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part B: Cmax for Metformin
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: Cmax for Furosemide
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: Cmax for Rosuvastatin
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: AUCt for Metformin
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: AUCt for Furosemide
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: AUCt for Rosuvastatin
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Day 1 and Day 4 for Treatment A and Treatment C, respectively
Part B: AUCinf for Metformin
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: AUCinf for Furosemide
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: AUCinf for Rosuvastatin
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part A: Cmax for 6-Hydroxybupropion
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: Cmax for 5-Hydroxyomeprazole
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Cmax for 1-Hydroxymidazolam
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: AUCt for 6-Hydroxybupropion
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: AUCt for 5-Hydroxyomeprazole
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: AUCt for 1-Hydroxymidazolam
AUCt was calculated using the linear/log trapezoid rule.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: AUCinf for 6-Hydroxybupropion
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: AUCinf for 5-Hydroxyomeprazole
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: AUCinf for 1-Hydroxymidazolam
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Time at Which Cmax Was Observed (Tmax) for Bupropion
The time that Cmax was observed.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: Tmax for 6-Hydroxybupropion
The time that Cmax was observed for 6-Hydroxybupropion.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: Tmax for Repaglinide
The time that Cmax was observed for Repaglinide.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, and 24 hours post-dose on Period 1 Day 4 and Period 2 Day 6 for Treatment B and F, respectively
Part A: Tmax for Flurbiprofen
The time that Cmax was observed for Flurbiprofen.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Tmax for Omeprazole
The time that Cmax was observed for Omeprazole.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Tmax for 5-Hydroxyomeprazole
The time that Cmax was observed for 5-Hydroxyomeprazole.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Tmax for Midazolam
The time that Cmax was observed for Midazolam.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Tmax for 1-Hydroxymidazolam
The time that Cmax was observed for 1-Hydroxymidazolam.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Terminal Elimination Half-life (T½) for Bupropion
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: t1/2 6-Hydroxybupropion
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: T1/2 for Repaglinide
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, and 24 hours post-dose on Period 1 Day 4 and Period 2 Day 6 for Treatment B and F, respectively
Part A: T1/2 for Flurbiprofen
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: T1/2 for Omeprazole
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: T1/2 for 5-Hydroxyomeprazole
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: T1/2 for Midazolam
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: T1/2 for 1-Hydroxymidazolam
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Ratio of Metabolite to Parent AUCt Corrected for Molecular Weight (AUCt M/P) for 6-Hydroxybupropion/Bupropion
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Period 1 Day 1, Period 2 Day 2 and Period 2 Day 12 for Treatment A, D and G, respectively
Part A: Ratio of Metabolite to Parent AUCt Corrected for Molecular Weight for 5-Hydroxyomeprazole/Omeprazole
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part A: Ratio of Metabolite to Parent AUCt Corrected for Molecular Weight for Hydroxymidazolam/Midazolam
Time frame: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and E, respectively
Part B: Tmax for Metformin
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: Tmax for Furosemide
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: Tmax for Rosuvastatin
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: T½ for Metformin
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: T½ for Furosemide
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part B: T½ for Rosuvastatin
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
Time frame: Predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, and 48 hours post-dose on Period 1 Day 1 and Period 2 Day 4 for Treatment A and Treatment C, respectively
Part A: Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
An adverse event (AE) was defined as any untoward medical occurrence in a participant administered a pharmaceutical product during the course of a clinical investigation. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of an investigational product, whether or not thought to be related to the investigational product. TEAE: any event that was not present before exposure to study drug (voxelotor or cocktail drugs \[probe substrates\]) or any event already present that worsened in either intensity or frequency after exposure to study drug. An SAE was defined as an AE that at any dose resulted in any of the following outcomes: death; life-threatening AE; inpatient hospitalization or prolongation of existing hospitalization; persistent or significant incapacity or disability; a congenital anomaly/birth defect; other important medical events.
Time frame: From start of study drug on Day 1 up to Day 28 (for a maximum of 30 days)
Part B: Number of Participants With TEAEs and SAEs
An AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product during the course of a clinical investigation. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of an investigational product, whether or not thought to be related to the investigational product. TEAE: any event that was not present before exposure to study drug (voxelotor or cocktail drugs \[probe substrates\]) or any event already present that worsened in either intensity or frequency after exposure to study drug. An SAE was defined as an AE that at any dose resulted in any of the following outcomes: death; life-threatening AE; inpatient hospitalization or prolongation of existing hospitalization; persistent or significant incapacity or disability; a congenital anomaly/birth defect; other important medical events.
Time frame: From start of study drug on Day 1 up to Day 18 (for a maximum of 20 days)
Part A: Number of Participants With Clinically Significant Abnormalities in Laboratory Tests
The following laboratory parameters were assessed: hematology: hematocrit, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, platelet count, red blood cell count, neutrophils, monocytes, lymphocytes, basophils and eosinophils. coagulation: prothrombin time, partial thromboplastin time, international normalized ratio. Serum Chemistry: albumin, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, creatinine, blood urea nitrogen, lactate dehydrogenase. Urinalysis: ketones, pH, protein, blood glucose, bilirubin, chloride, bicarbonate, phosphorous, potassium was assessed. Clinical significance of laboratory abnormalities was determined by investigator.
Time frame: From start of study drug on Day 1 up to Day 28 (for a maximum of 30 days)
Part A: Number of Participants With Clinically Significant Abnormalities in Physical Examinations
A complete physical examination included cardiovascular, respiratory, gastrointestinal, and neurological systems. Height and weight were also measured and recorded. Clinical significance of physical examinations was determined by investigator.
Time frame: From start of study drug on Day 1 up to Day 28 (for a maximum of 30 days)
Part A: Number of Participants With Clinically Significant Abnormalities in Vital Signs
Vital signs included oral temperature, heart rate, respiratory rate (breaths per minute), and blood pressure. Blood pressure and heart rate were measured in a supine position using completely automated device after at least 5 minutes of rest for the participant in a quiet setting without distractions. Clinical significance of vital signs was determined by investigator.
Time frame: From start of study drug on Day 1 up to Day 28 (for a maximum of 30 days)
Part B: Number of Participants With Clinically Significant Abnormalities in Laboratory Tests
The following laboratory parameters were assessed: hematology: hematocrit, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, platelet count, red blood cell count, neutrophils, monocytes, lymphocytes, basophils and eosinophils. coagulation: prothrombin time, partial thromboplastin time, international normalized ratio. Serum Chemistry: albumin, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, creatinine, blood urea nitrogen, lactate dehydrogenase. Urinalysis: ketones, pH, protein, blood glucose, bilirubin, chloride, bicarbonate, phosphorous, potassium was assessed. Clinical significance of laboratory abnormalities was determined by investigator.
Time frame: From start of study drug on Day 1 up to Day 18 (for a maximum of 20 days)
Part B: Number of Participants With Clinically Significant Abnormalities in Physical Examinations
A complete physical examination included cardiovascular, respiratory, gastrointestinal, and neurological systems. Height and weight were also measured and recorded. Clinical significance of physical examinations was determined by investigator.
Time frame: From start of study drug on Day 1 up to Day 18 (for a maximum of 20 days)
Part B: Number of Participants With Clinically Significant Abnormalities in Vital Signs
Vital signs included oral temperature, heart rate, respiratory rate (breaths per minute), and blood pressure. Blood pressure and heart rate were measured in a supine position using completely automated device after at least 5 minutes of rest for the participant in a quiet setting without distractions. Clinical significance of vital signs was determined by investigator.
Time frame: From start of study drug on Day 1 up to Day 18 (for a maximum of 20 days)
| Milestone | Part A:Treatment Sequence ABCDEFG | Part B: Treatment Sequence ABCD |
|---|---|---|
| Started | 26 | 18 |
| Completed | 25 | 18 |
| Not completed | 1 | 0 |
| Withdrew: Adverse event | 1 | 0 |
| Milestone | Part A:Treatment Sequence ABCDEFG | Part B: Treatment Sequence ABCD |
|---|---|---|
| Started | 25 | 18 |
| Completed | 25 | 18 |
| Not completed | 0 | 0 |
| Milestone | Part A:Treatment Sequence ABCDEFG | Part B: Treatment Sequence ABCD |
|---|---|---|
| Started | 25 | 18 |
| Completed | 25 | 18 |
| Not completed | 0 | 0 |
| Nanogram per milliliter (ng/mL) | Part A: Period 1: Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: Maximum Observed Plasma Concentration (Cmax) for Bupropion | 160.5 ± 31 | 201.3 ± 35 | 191.1 ± 36 |
| ng/ml | Part A: Period 1: Treatment B | Part A: Period 2: Treatment F |
|---|---|---|
| Part A: Cmax for Repaglinide | 10.85 ± 41 | 12.89 ± 37 |
| ng/ml | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Cmax for Flurbiprofen | 6923 ± 25 | 7820 ± 20 |
| ng/ml | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Cmax for Omeprazole | 458.1 ± 58 | 374.3 ± 57 |
| ng/ml | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Cmax for Midazolam | 10.33 ± 38 | 15.99 ± 23 |
AUCt was calculated using the linear/log trapezoidal rule.
| Hour* nanogram/milliliter (h*ng/mL) | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: Area Under the Plasma Concentration-Time Curve From Time Zero (0) to the Time of the Last Quantifiable Concentration (AUCt) for Bupropion | 845.3 ± 29 | 963.9 ± 28 | 812.1 ± 28 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part A: Period 1: Treatment B | Part A: Period 2: Treatment F |
|---|---|---|
| Part A: AUCt for Repaglinide | 15.47 ± 40 | 20.59 ± 34 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCt for Flurbiprofen | 39639 ± 26 | 44940 ± 24 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCt for Omeprazole | 889.4 ± 62 | 721.8 ± 68 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCt for Midazolam | 25.78 ± 42 | 52.58 ± 27 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| Hour*nanogram/milliliter | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf) for Bupropion | 883.3 ± 30 | 985.4 ± 28 | 839.1 ± 28 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part A: Period 1: Treatment B | Part A: Period 2: Treatment F |
|---|---|---|
| Part A: AUCinf for Repaglinide | 16.49 ± 40 | 21.74 ± 33 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCinf for Flurbiprofen | 40047 ± 26 | 45361 ± 25 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCinf for Omeprazole | 932.3 ± 62 | 743.1 ± 69 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCinf for Midazolam | 27.15 ± 40 | 54.42 ± 28 |
| ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: Cmax for Metformin | 55.84 ± 35 | 44.17 ± 36 |
| ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: Cmax for Furosemide | 48.58 ± 32 | 52.62 ± 35 |
| ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: Cmax for Rosuvastatin | 5.545 ± 46 | 7.286 ± 53 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: AUCt for Metformin | 303.8 ± 26 | 241.7 ± 30 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: AUCt for Furosemide | 105.0 ± 28 | 108.4 ± 33 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: AUCt for Rosuvastatin | 50.29 ± 46 | 60.22 ± 45 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: AUCinf for Metformin | 310.5 ± 25 | 249.0 ± 29 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: AUCinf for Furosemide | 108.4 ± 29 | 113.3 ± 30 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: AUCinf for Rosuvastatin | 50.87 ± 45 | 63.16 ± 43 |
| ng/mL | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: Cmax for 6-Hydroxybupropion | 351.1 ± 45 | 376.3 ± 45 | 489.1 ± 49 |
| ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Cmax for 5-Hydroxyomeprazole | 179.8 ± 29 | 216.8 ± 27 |
| ng/ml | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Cmax for 1-Hydroxymidazolam | 5.984 ± 44 | 7.291 ± 28 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: AUCt for 6-Hydroxybupropion | 11529 ± 49 | 11223 ± 44 | 13453 ± 53 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCt for 5-Hydroxyomeprazole | 504.1 ± 21 | 611.4 ± 21 |
AUCt was calculated using the linear/log trapezoid rule.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCt for 1-Hydroxymidazolam | 12.73 ± 43 | 20.07 ± 27 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: AUCinf for 6-Hydroxybupropion | 11692 ± 47 | 12407 ± 44 | 14990 ± 55 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCinf for 5-Hydroxyomeprazole | 510.3 ± 21 | 615.5 ± 22 |
AUCinf was calculated as AUClast + Clast/lamda z, where AUClast: area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration. Clast is the last measurable concentration and lamda z: apparent terminal elimination rate constant.
| h*ng/mL | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: AUCinf for 1-Hydroxymidazolam | 12.72 ± 43 | 20.92 ± 26 |
The time that Cmax was observed.
| Hours | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: Time at Which Cmax Was Observed (Tmax) for Bupropion | 1.500 (1.00 to 3.00) | 1.500 (1.00 to 3.00) | 1.500 (1.00 to 3.00) |
The time that Cmax was observed for 6-Hydroxybupropion.
| Hours | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: Tmax for 6-Hydroxybupropion | 3.015 (1.13 to 8.05) | 4.000 (2.00 to 8.00) | 3.000 (1.50 to 4.00) |
The time that Cmax was observed for Repaglinide.
| Hours | Part A: Period 1: Treatment B | Part A: Period 2: Treatment F |
|---|---|---|
| Part A: Tmax for Repaglinide | 0.500 (0.50 to 1.07) | 0.500 (0.50 to 2.00) |
The time that Cmax was observed for Flurbiprofen.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Tmax for Flurbiprofen | 2.000 (0.50 to 6.00) | 1.500 (0.50 to 3.13) |
The time that Cmax was observed for Omeprazole.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Tmax for Omeprazole | 2.000 (1.00 to 4.00) | 2.000 (1.00 to 3.13) |
The time that Cmax was observed for 5-Hydroxyomeprazole.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Tmax for 5-Hydroxyomeprazole | 2.000 (1.00 to 4.02) | 2.000 (1.00 to 4.00) |
The time that Cmax was observed for Midazolam.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Tmax for Midazolam | 1.000 (0.50 to 3.00) | 1.000 (0.50 to 1.00) |
The time that Cmax was observed for 1-Hydroxymidazolam.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Tmax for 1-Hydroxymidazolam | 1.000 (0.50 to 3.00) | 1.000 (0.50 to 1.03) |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: Terminal Elimination Half-life (T½) for Bupropion | 20.577 ± 2.6082 | 19.203 ± 2.6331 | 19.383 ± 2.6591 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: t1/2 6-Hydroxybupropion | 26.228 ± 5.9780 | 23.220 ± 4.9391 | 21.500 ± 4.3406 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part A: Period 1: Treatment B | Part A: Period 2: Treatment F |
|---|---|---|
| Part A: T1/2 for Repaglinide | 4.684 ± 1.6568 | 6.242 ± 1.3469 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: T1/2 for Flurbiprofen | 6.906 ± 1.2545 | 6.855 ± 1.2666 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: T1/2 for Omeprazole | 0.945 ± 0.3240 | 0.891 ± 0.2785 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: T1/2 for 5-Hydroxyomeprazole | 1.455 ± 0.5103 | 1.387 ± 0.2029 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: T1/2 for Midazolam | 4.502 ± 1.7340 | 5.497 ± 0.6465 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: T1/2 for 1-Hydroxymidazolam | 3.346 ± 4.0653 | 3.172 ± 0.9569 |
| Ratio | Part A: Period 1 Treatment A | Part A: Period 2: Treatment D | Part A: Period 2: Treatment G |
|---|---|---|---|
| Part A: Ratio of Metabolite to Parent AUCt Corrected for Molecular Weight (AUCt M/P) for 6-Hydroxybupropion/Bupropion | 12.79 ± 40 | 10.92 ± 39 | 15.53 ± 47 |
| Ratio | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Ratio of Metabolite to Parent AUCt Corrected for Molecular Weight for 5-Hydroxyomeprazole/Omeprazole | 0.5417 ± 52 | 0.8096 ± 60 |
| Ratio | Part A: Period 1: Treatment A | Part A: Period 2: Treatment E |
|---|---|---|
| Part A: Ratio of Metabolite to Parent AUCt Corrected for Molecular Weight for Hydroxymidazolam/Midazolam | 0.4704 ± 43 | 0.3638 ± 26 |
| Hours | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: Tmax for Metformin | 1.500 (1.00 to 5.00) | 2.000 (1.50 to 4.00) |
| Hours | Part B, Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: Tmax for Furosemide | 0.510 (0.50 to 1.00) | 0.775 (0.50 to 1.50) |
| Hours | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: Tmax for Rosuvastatin | 5.000 (2.50 to 5.05) | 2.500 (1.50 to 5.02) |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: T½ for Metformin | 3.554 ± 0.9523 | 3.324 ± 0.8515 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: T½ for Furosemide | 7.786 ± 5.1296 | 4.757 ± 2.1595 |
T½ was calculated as ln (2)/lambda z; where lamda z: apparent terminal elimination rate constant.
| Hours | Part B: Period 1: Treatment A | Part B: Period 2: Treatment C |
|---|---|---|
| Part B: T½ for Rosuvastatin | 11.436 ± 8.9813 | 8.852 ± 3.1587 |
An adverse event (AE) was defined as any untoward medical occurrence in a participant administered a pharmaceutical product during the course of a clinical investigation. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of an investigational product, whether or not thought to be related to the investigational product. TEAE: any event that was not present before exposure to study drug (voxelotor or cocktail drugs \[probe substrates\]) or any event already present that worsened in either intensity or frequency after exposure to study drug. An SAE was defined as an AE that at any dose resulted in any of the following outcomes: death; life-threatening AE; inpatient hospitalization or prolongation of existing hospitalization; persistent or significant incapacity or disability; a congenital anomaly/birth defect; other important medical events.
| Participants | Part A: Period 1 | Part A: Period 2 |
|---|---|---|
| TEAEs | 4 | 9 |
| SAEs | 0 | 0 |
An AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product during the course of a clinical investigation. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of an investigational product, whether or not thought to be related to the investigational product. TEAE: any event that was not present before exposure to study drug (voxelotor or cocktail drugs \[probe substrates\]) or any event already present that worsened in either intensity or frequency after exposure to study drug. An SAE was defined as an AE that at any dose resulted in any of the following outcomes: death; life-threatening AE; inpatient hospitalization or prolongation of existing hospitalization; persistent or significant incapacity or disability; a congenital anomaly/birth defect; other important medical events.
| Participants | Part B: Period 1 | Part B: Period 2 |
|---|---|---|
| TEAEs | 1 | 2 |
| SAEs | 0 | 0 |
The following laboratory parameters were assessed: hematology: hematocrit, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, platelet count, red blood cell count, neutrophils, monocytes, lymphocytes, basophils and eosinophils. coagulation: prothrombin time, partial thromboplastin time, international normalized ratio. Serum Chemistry: albumin, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, creatinine, blood urea nitrogen, lactate dehydrogenase. Urinalysis: ketones, pH, protein, blood glucose, bilirubin, chloride, bicarbonate, phosphorous, potassium was assessed. Clinical significance of laboratory abnormalities was determined by investigator.
| Participants | Part A: Period 1 | Part A: Period 2 |
|---|---|---|
| Part A: Number of Participants With Clinically Significant Abnormalities in Laboratory Tests | 0 | 0 |
A complete physical examination included cardiovascular, respiratory, gastrointestinal, and neurological systems. Height and weight were also measured and recorded. Clinical significance of physical examinations was determined by investigator.
| Participants | Part A: Period 1 | Part A: Period 2 |
|---|---|---|
| Part A: Number of Participants With Clinically Significant Abnormalities in Physical Examinations | 1 | 0 |
Vital signs included oral temperature, heart rate, respiratory rate (breaths per minute), and blood pressure. Blood pressure and heart rate were measured in a supine position using completely automated device after at least 5 minutes of rest for the participant in a quiet setting without distractions. Clinical significance of vital signs was determined by investigator.
| Participants | Part A: Period 1 | Part A: Period 2 |
|---|---|---|
| Part A: Number of Participants With Clinically Significant Abnormalities in Vital Signs | 0 | 1 |
The following laboratory parameters were assessed: hematology: hematocrit, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, platelet count, red blood cell count, neutrophils, monocytes, lymphocytes, basophils and eosinophils. coagulation: prothrombin time, partial thromboplastin time, international normalized ratio. Serum Chemistry: albumin, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, creatinine, blood urea nitrogen, lactate dehydrogenase. Urinalysis: ketones, pH, protein, blood glucose, bilirubin, chloride, bicarbonate, phosphorous, potassium was assessed. Clinical significance of laboratory abnormalities was determined by investigator.
| Participants | Part B: Period 1 | Part B: Period 2 |
|---|---|---|
| Part B: Number of Participants With Clinically Significant Abnormalities in Laboratory Tests | 0 | 0 |
A complete physical examination included cardiovascular, respiratory, gastrointestinal, and neurological systems. Height and weight were also measured and recorded. Clinical significance of physical examinations was determined by investigator.
| Participants | Part B: Period 1 | Part B: Period 2 |
|---|---|---|
| Part B: Number of Participants With Clinically Significant Abnormalities in Physical Examinations | 0 | 0 |
Vital signs included oral temperature, heart rate, respiratory rate (breaths per minute), and blood pressure. Blood pressure and heart rate were measured in a supine position using completely automated device after at least 5 minutes of rest for the participant in a quiet setting without distractions. Clinical significance of vital signs was determined by investigator.
| Participants | Part B: Period 1 | Part B: Period 2 |
|---|---|---|
| Part B: Number of Participants With Clinically Significant Abnormalities in Vital Signs | 0 | 0 |
Collected over Part A: from start of study drug on Day 1 up to Day 28 (for a maximum of 30 days). Part B: from start of study drug on Day 1 up to Day 18 (for a maximum of 20 days). Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Part A: Period 1 | 0/26 (0%) | 0/26 (0%) | 4/26 (15.4%) |
| Part A: Period 2 | 0/25 (0%) | 0/25 (0%) | 9/25 (36%) |
| Part B: Period 1 | 0/18 (0%) | 0/18 (0%) | 1/18 (5.6%) |
| Part B: Period 2 | 0/18 (0%) | 0/18 (0%) | 2/18 (11.1%) |
| Event | Part A: Period 1 | Part A: Period 2 | Part B: Period 1 | Part B: Period 2 |
|---|---|---|---|---|
| HeadacheNervous system disorders | 0/26 | 7/25 | 1/18 | 2/18 |
| Influenza like illnessGeneral disorders | 0/26 | 2/25 | 0/18 | 0/18 |
| Abdominal painGastrointestinal disorders | 1/26 | 0/25 | 0/18 | 1/18 |
| NauseaGastrointestinal disorders | 0/26 | 0/25 | 1/18 | 0/18 |
| Tooth abscessInfections and infestations | 0/26 | 0/25 | 0/18 | 1/18 |
| DizzinessNervous system disorders | 0/26 | 1/25 | 0/18 | 0/18 |
| ConstipationGastrointestinal disorders | 0/26 | 1/25 | 0/18 | 0/18 |
| DiarrhoeaGastrointestinal disorders | 0/26 | 1/25 | 0/18 | 0/18 |
| Muscle strainInjury, poisoning and procedural complications | 1/26 | 1/25 | 0/18 | 0/18 |
| COVID-19Infections and infestations | 0/26 | 1/25 | 0/18 | 0/18 |
Safety population included all participants who received any amount of study drug (voxelotor or cocktail drugs \[probe substrates\]).
| Age, Continuous(Years) | Part A:Treatment Sequence ABCDEFG | Part B: Treatment Sequence ABCD | Total |
|---|---|---|---|
| Mean | 41.9 ± 8.89 | 36.9 ± 10.08 | 39.8 ± 9.61 |
| Sex: Female, Male(Participants) | Part A:Treatment Sequence ABCDEFG | Part B: Treatment Sequence ABCD | Total |
|---|---|---|---|
| Female | 9 | 5 | 14 |
| Male | 17 | 13 | 30 |
| Ethnicity (NIH/OMB)(Participants) | Part A:Treatment Sequence ABCDEFG | Part B: Treatment Sequence ABCD | Total |
|---|---|---|---|
| Hispanic or Latino | 6 | 8 | 14 |
| Not Hispanic or Latino | 20 | 10 | 30 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Race (NIH/OMB)(Participants) | Part A:Treatment Sequence ABCDEFG | Part B: Treatment Sequence ABCD | Total |
|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 |
| Asian | 1 | 1 | 2 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 |
| Black or African American | 9 | 7 | 16 |
| White | 16 | 10 | 26 |
| More than one race | 0 | 0 | 0 |
| Unknown or Not Reported | 0 | 0 | 0 |
Documents are hosted by the registry — open the source record to download them.
Plan to share: No — Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
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