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| ID | Type | Description | Link |
|---|---|---|---|
| 2011-000435-83 | EudraCT Number |
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The goal of this study was to compare hepatic pharmacokinetics (PK) derived from liver tissue to plasma PK after administration of grazoprevir (MK-5172) to participants with chronic hepatitis C virus (HCV) infection. Participants will be randomized to one of four different liver ultrasound-guided Fine Needle Aspirate (FNA) schedules (at 4-, 8-, 24-, or 72-hours after the Day 7 dose).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Grazoprevir 100 mg | Experimental | Participants received GZR 100 mg once daily (q.d.) for 7 days. Liver FNA was performed on Day 7. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Grazoprevir | Drug | GZR 100 mg tablet by mouth q.d. for 7 days. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Estimated Area Under the Liver Concentration-time Curve for 24 Hours Post-dose (AUC[H]0-24hr) of Grazoprevir | Each participant was assigned to undergo Fine Needle Aspiration (FNA) to obtain liver tissue at different time points. Specifically, one participant underwent FNA at 4 hr post-dose only, another participant underwent FNA at 8 hr post-dose only, and a third participant underwent FNA at 24 hr post-dose only. (The fourth participant underwent FNA at 72 hr post-dose and therefore was not included in the calculation of AUC0-24hr.) Therefore, in calculating AUC0-24hr, there were only 3 data points: 1 data point at 4 hr post-dose, 1 data point at 8 hr post-dose, and 1 data point at 24 hr post-dose. The model assumed that drug concentration was at steady-state, and that the concentration at 24 hr post-dose was equal to the concentration at 0 hr post-dose. | 4, 8, and 24 hours post-dose on Day 7 |
| Hepatic Concentration of GZR (C[H]Xhr) | C(H)Xhr of GZR was expressed as liver concentration (μmol GZR/L liver) using the concentration of the extracted liver sample (mass of the liver biopsy/0.2 mL solvent), and assuming that liver has the specific gravity of water (1 g/mL). The arithmetic mean C(H)Xhr concentration is based on the means of 4 FNA passes per participant in all 4 participants. | 4, 8, 24, and 72 hours post-dose on Day 7 |
| Apparent Terminal Hepatic Half-life (t[H]½ ) of GZR | t(H)1/2 is a measure of the time required for the maximum post-dose liver concentration of GZR to decrease by 50%. | 4, 8, 24, and 72 hours post-dose on Day 7 |
| Measure | Description | Time Frame |
|---|---|---|
| Plasma AUC[0-24 hr] of GZR | AUC0-24hr is a measure of the mean concentration of drug in plasma after dosing to 24 hours post-dose. | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
| Maximum Plasma Concentration (Cmax) of GZR |
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Inclusion criteria:
Exclusion criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Medical Director | Merck Sharp & Dohme LLC | Study Director |
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| ID | Title | Description |
|---|---|---|
| FG000 | Grazoprevir 100 mg | Participants received GZR 100 mg once daily (q.d.) for 7 days. Liver FNA was performed on Day 7. |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
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| ID | Title | Description |
|---|---|---|
| BG000 | Grazoprevir 100 mg | Participants received GZR 100 mg q.d. for 7 days. Liver FNA was performed on Day 7. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Estimated Area Under the Liver Concentration-time Curve for 24 Hours Post-dose (AUC[H]0-24hr) of Grazoprevir | Each participant was assigned to undergo Fine Needle Aspiration (FNA) to obtain liver tissue at different time points. Specifically, one participant underwent FNA at 4 hr post-dose only, another participant underwent FNA at 8 hr post-dose only, and a third participant underwent FNA at 24 hr post-dose only. (The fourth participant underwent FNA at 72 hr post-dose and therefore was not included in the calculation of AUC0-24hr.) Therefore, in calculating AUC0-24hr, there were only 3 data points: 1 data point at 4 hr post-dose, 1 data point at 8 hr post-dose, and 1 data point at 24 hr post-dose. The model assumed that drug concentration was at steady-state, and that the concentration at 24 hr post-dose was equal to the concentration at 0 hr post-dose. | The per protocol population (PPP) includes all participants (4, 8, and 24 hr time points) who complied with the protocol sufficiently to ensure that the data were likely to exhibit the effects of treatment. As each data point was obtained from unique participants, there is no measure of variability. | Posted | Number | µM*hr | 4, 8, and 24 hours post-dose on Day 7 |
From Screening up to 14 days after final dose (up to Day 21)
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Grazoprevir 100 mg | Participants received GZR 100 mg q.d. for 7 days. Liver FNA was performed on Day 7. |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Intervertebral disc protrusion | Musculoskeletal and connective tissue disorders | MedDRA v. 17.1 | Systematic Assessment |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Diarrhoea | Gastrointestinal disorders | MedDRA v. 17.1 | Systematic Assessment |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Senior Vice President, Global Clinical Development | Merck Sharp & Dohme Corp. | 1-800-672-6372 | ClinicalTrialsDisclosure@merck.com |
| ID | Term |
|---|---|
| D006526 | Hepatitis C |
| ID | Term |
|---|---|
| D000086982 | Blood-Borne Infections |
| D003141 | Communicable Diseases |
| D007239 | Infections |
| D006525 | Hepatitis, Viral, Human |
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| ID | Term |
|---|---|
| C578009 | grazoprevir |
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Cmax is a measure of the maximum plasma concentration post-dose. |
| Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
| Lowest Plasma Concentration (Ctrough) of GZR | Ctrough is a measure of drug concentration 24 hours post-dose. | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
| Time to Maximum Plasma Concentration (Tmax) of GZR | Tmax is a measure of time to reach maximum post-dose plasma drug concentration. | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
| Plasma t½ of GZR | t1/2 is a measure of time for the maximum plasma concentration of GZR to decrease by 50%. | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
| Years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| ID | Title | Description |
|---|
| OG000 | Grazoprevir 100 mg | Participants received GZR 100 mg q.d. for 7 days. Liver FNA was performed on Day 7. |
|
|
| Primary | Hepatic Concentration of GZR (C[H]Xhr) | C(H)Xhr of GZR was expressed as liver concentration (μmol GZR/L liver) using the concentration of the extracted liver sample (mass of the liver biopsy/0.2 mL solvent), and assuming that liver has the specific gravity of water (1 g/mL). The arithmetic mean C(H)Xhr concentration is based on the means of 4 FNA passes per participant in all 4 participants. | The PPP includes all participants who complied with the protocol sufficiently to ensure that the data were likely to exhibit the effects of treatment. | Posted | Mean | Standard Deviation | µM | 4, 8, 24, and 72 hours post-dose on Day 7 |
|
|
|
| Primary | Apparent Terminal Hepatic Half-life (t[H]½ ) of GZR | t(H)1/2 is a measure of the time required for the maximum post-dose liver concentration of GZR to decrease by 50%. | Apparent t(h)1/2 could not be estimated due to insufficient data in the terminal phase. | Posted | 4, 8, 24, and 72 hours post-dose on Day 7 |
|
|
| Secondary | Plasma AUC[0-24 hr] of GZR | AUC0-24hr is a measure of the mean concentration of drug in plasma after dosing to 24 hours post-dose. | Plasma PK data were not collected due to liver PK results being deemed physiologically impossible. | Posted | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
|
|
| Secondary | Maximum Plasma Concentration (Cmax) of GZR | Cmax is a measure of the maximum plasma concentration post-dose. | Plasma PK data were not collected due to liver PK results being deemed physiologically impossible. | Posted | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
|
|
| Secondary | Lowest Plasma Concentration (Ctrough) of GZR | Ctrough is a measure of drug concentration 24 hours post-dose. | Plasma PK data were not collected due to liver PK results being deemed physiologically impossible. | Posted | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
|
|
| Secondary | Time to Maximum Plasma Concentration (Tmax) of GZR | Tmax is a measure of time to reach maximum post-dose plasma drug concentration. | Plasma PK data were not collected due to liver PK results being deemed physiologically impossible. | Posted | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
|
|
| Secondary | Plasma t½ of GZR | t1/2 is a measure of time for the maximum plasma concentration of GZR to decrease by 50%. | Plasma PK data were not collected due to liver PK results being deemed physiologically impossible. | Posted | Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48 and 72 hours post-dose on Day 7 |
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| 4 |
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The SPONSOR must have the opportunity to review all proposed abstracts, manuscripts, or presentations regarding this study 60 days prior to submission for publication/presentation.
| D014777 |
| Virus Diseases |
| D018178 | Flaviviridae Infections |
| D012327 | RNA Virus Infections |
| D006505 | Hepatitis |
| D008107 | Liver Diseases |
| D004066 | Digestive System Diseases |
|
| Hepatic concentration at 72 hours (C[H]72hr) |
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