Hepatitis CPhase 2Champion2NCT01074008
A Randomized Study to Evaluate the Safety, Tolerability and Antiviral Activity of ABT-450, ABT-333 and ABT-072
A Phase 2 study testing ABT-450, ABT-072 and ABT-333 in people with Hepatitis C and HCV, run by AbbVie (prior sponsor, Abbott) at 26 sites in 2 countries.
Trial summary
This study assessed the safety, tolerability, pharmacokinetics, and antiviral activity of multiple oral doses of ABT-450/ritonavir (r), ABT-333 (also known as dasabuvir), or ABT-072 in hepatitis C virus (HCV), genotype 1-infected, treatment-naïve adults. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Hepatitis C, HCV, Chronic Hepatitis C Infection
- What is being tested?
- ABT-450, ABT-072 and ABT-333
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 74 participants
- Where
- 26 sitesin 2 countries
- Study dates
- Mar 2010to Jan 2012
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Chronic hepatitis C virus (HCV), genotype 1 infection (HCV ribonucleic acid level greater than or equal to 100,000 IU/mL) at screening
- Liver biopsy within 3 years with histology consistent with HCV-induced liver damage, with no evidence of cirrhosis or liver pathology due to any cause other than chronic HCV
- Treatment naïve male or female between the ages of 18 and 65
- Females must be post-menopausal for more than 2 years or surgically sterile
- Negative screen for drugs and alcohol
- Negative hepatitis B surface antigen (HBsAg) and anti-human immunodeficiency virus antibodies (anti-HIV Ab)
- No use of cytochrome P450 3A (CYP3A) and cytochrome P450 2C8 (CYP2C8) enzyme inducers or inhibitors within 1 month of dosing
- Be in a condition of general good health, as perceived by the investigator, other than HCV infection
Who cannot join
- Significant sensitivity to any drug
- Use of herbal supplements within 2 weeks prior to study drug dosing
- History of major depression within 2 years
- Prior treatment with any investigational or commercially available anti-HCV agents
- Abnormal laboratory tests
Trial locations and contacts
26 sites in 2 countries.
26 sites in 2 countries
United States25 sites
Site Reference ID/Investigator# 23370
Anaheim, California, 92801
Site Reference ID/Investigator# 23371
Aurora, Colorado, 80045
Site Reference ID/Investigator# 23391
Baltimore, Maryland, 21287
Site Reference ID/Investigator# 23372
Baton Rouge, Louisiana, 70810
Site Reference ID/Investigator# 23375
Chapel Hill, North Carolina, 27599-7584
Site Reference ID/Investigator# 23373
Chicago, Illinois, 60611
Site Reference ID/Investigator# 24908
Chicago, Illinois, 60612
Site Reference ID/Investigator# 23376
Dallas, Texas, 75203
Site Reference ID/Investigator# 23377
Detroit, Michigan, 48202
Site Reference ID/Investigator# 23385
Durham, North Carolina, 27705
Site Reference ID/Investigator# 24891
Houston, Texas, 77030
Site Reference ID/Investigator# 23381
Indianapolis, Indiana, 46202-5121
Site Reference ID/Investigator# 23387
La Jolla, California, 92037
Site Reference ID/Investigator# 23388
Los Angeles, California, 90048
Site Reference ID/Investigator# 23383
Madison, Wisconsin, 53792
Site Reference ID/Investigator# 24710
New Orleans, Louisiana, 70112
Site Reference ID/Investigator# 35842
New York, New York, 10016
Site Reference ID/Investigator# 23379
New York, New York, 10021
Site Reference ID/Investigator# 23369
Orlando, Florida, 32803
Site Reference ID/Investigator# 26362
Orlando, Florida, 32809
Site Reference ID/Investigator# 23392
Phoenix, Arizona, 85054
Site Reference ID/Investigator# 24909
Saint Paul, Minnesota, 55114
Site Reference ID/Investigator# 24715
Salt Lake City, Utah, 84132-2410
Site Reference ID/Investigator# 23382
San Antonio, Texas, 78215
Site Reference ID/Investigator# 25463
Seattle, Washington, 98101
About this study
Official title: A Blinded, Randomized, Placebo-controlled, Dose Ranging Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Antiviral Activity of Multiple Doses of ABT-450 With Ritonavir (ABT-450/r), ABT-333 or ABT-072 Each Administered Alone and in Combination With Peginterferon α-2a and Ribavirin (PegIFN/RBV) in Treatment-Naïve Subjects With Genotype 1 Chronic Hepatitis C Virus (HCV) Infection
This study assessed the safety, tolerability, pharmacokinetics, and antiviral activity of multiple oral doses of ABT-450/ritonavir (r), ABT-333 (also known as dasabuvir), or ABT-072 in hepatitis C virus (HCV), genotype 1-infected, treatment-naïve adults.
Read the detailed description
This was a Phase 2a, randomized, blinded, placebo-controlled, dose-ranging study in chronically, hepatitis C virus (HCV) genotype 1-infected participants designed to explore the safety, tolerability, pharmacokinetics, antiviral activity, as well as the evolution and persistence to resistance of ABT-450/r, ABT-333, or ABT-072. Participants were treated with ABT-450/r, ABT-333, or ABT-072 monotherapy for 3 days, followed by 81 days (12 weeks minus 3 days of monotherapy) of ABT-450/r, ABT-333, or ABT-072 combined with pegylated interferon/ribavirin (pegIFN/RBV), followed by 36 weeks of pegIFN/RBV alone. Participants randomized to an ABT-450/r treatment group who achieved rapid virologic response (RVR) and had HCV ribonucleic acid (RNA) levels < 25 IU/mL at all subsequent visits were eligible to stop pegIFN/RBV therapy on or after Week 24.
- Being tested
- ABT-450, ABT-072, ABT-333, Ritonavir, Peginterferon alpha-2a
- Medical subject headings
- Hepatitis C
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ABT-450Drug
50 mg capsules co-administered with ritonavir
ABT-072Drug
50 mg tablet
ABT-333Drug
Also called Dasabuvir
400 mg tablet
RitonavirDrug
Also called ABT-538, Norvir
100 mg capsules co-administered with ABT-450
Peginterferon alpha-2aDrug
Syringe, 180 µg/0.5 mL for subcutaneous injections
RibavirinDrug
200 mg tablet dosed at 1000 or 1200 mg daily divided twice a day
PlaceboOther
Matching placebo for ABT-450/r, ABT-072, or ABT-333 monotherapy at each dose level
| Study group | Role | What they receive |
|---|---|---|
| ABT-450/r (50/100 mg) once daily (QD) + pegIFN/RBV | Experimental | Participants received 50 mg ABT-450 and 100 mg ritonavir (r) monotherapy once daily for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: ABT-450; Drug: Ritonavir; Drug: Peginterferon alpha-2a; Drug: Ribavirin |
| ABT-450/r (100/100 mg) once daily (QD) + pegIFN/RBV | Experimental | Participants received 100 mg ABT-450 and 100 mg ritonavir (r) monotherapy once daily for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: ABT-450; Drug: Ritonavir; Drug: Peginterferon alpha-2a; Drug: Ribavirin |
| ABT-450/r (200/100 mg) once daily (QD) + pegIFN/RBV | Experimental | Participants received 200 mg ABT-450 and 100 mg ritonavir (r) monotherapy once daily for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: ABT-450; Drug: Ritonavir; Drug: Peginterferon alpha-2a; Drug: Ribavirin |
| ABT-072 (100 mg) once daily (QD) + pegIFN/RBV | Experimental | Participants received 100 mg ABT-072 monotherapy once daily for 3 days followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: ABT-072; Drug: Peginterferon alpha-2a; Drug: Ribavirin |
| ABT-072 (300 mg) once daily (QD) + pegIFN/RBV | Experimental | Participants received 300 mg ABT-072 monotherapy once daily for 3 days followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: ABT-072; Drug: Peginterferon alpha-2a; Drug: Ribavirin |
| ABT-072 (600 mg) once daily (QD) + pegIFN/RBV | Experimental | Participants received 600 mg ABT-072 monotherapy once daily for 3 days followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: ABT-072; Drug: Peginterferon alpha-2a; Drug: Ribavirin |
| ABT-333 (400 mg) twice a day (BID) + pegIFN/RBV | Experimental | Participants received 400 mg ABT-333 monotherapy twice a day for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: ABT-333; Drug: Peginterferon alpha-2a; Drug: Ribavirin |
| ABT-333 (800 mg) twice daily (BID) + pegIFN/RBV | Experimental | Participants received 800 mg ABT-333 monotherapy twice a day for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: ABT-333; Drug: Peginterferon alpha-2a; Drug: Ribavirin |
| Placebo + pegIFN/RBV | Placebo comparator | Participants received matching placebo for ABT-450/r, ABT-072, or ABT-333 monotherapy at each dose level for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. Receives: Drug: Peginterferon alpha-2a; Drug: Ribavirin; Other: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximal Change From Baseline in Hepatitis C Virus Ribonucleic Acid (HCV RNA) Levels During ABT-450/r, ABT-333, or ABT-072 Monotherapy Treatment
Plasma HCV RNA levels (reported as log10 IU/mL) were determined for each sample using a real-time reverse transcriptase-polymerase chain reaction (RT-PCR) assay that had a lower limit of detection of 10 IU/mL and a lower limit of quantification of 25 IU/mL. The baseline value was the HCV RNA level before the first dose of study drug on Day 1. The maximal change during monotherapy was the difference from baseline to the lowest log10 HCV RNA level anytime after the first dose of study drug on Day 1 through the last log10 HCV RNA level before the first dose of study drug on Day 4. Data are reported as the mean ± standard deviation.
Measured: Prior to dosing on Day 1 to before the morning dose on Day 4
Maximum Plasma Concentration (Cmax) of ABT-450
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-450 using validated analytical methods. The maximum plasma concentration (Cmax; measured in ng/mL) is the highest concentration that a drug achieves in the blood after administration in a dosing interval. The Cmax of ABT-450 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Time to Maximum Plasma Concentration (Tmax) of ABT-450
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-450 using validated analytical methods. The time to maximum plasma concentration (Tmax; measured in hours) is the time it takes for a drug to achieve Cmax. The Tmax of ABT-450 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Area Under the Plasma Concentration-time Curve From 0 to 24 Hours (AUC24) Post-dose of ABT-450
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-450 using validated analytical methods. The area under the plasma concentration-time curve (AUC; measured in ng*hr/mL) is a method of measurement to determine the total exposure of a drug in blood plasma. The AUC24 of ABT-450 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Maximum Plasma Concentration (Cmax) of Ritonavir
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ritonavir using validated analytical methods. The maximum plasma concentration (Cmax; measured in ng/mL) is the highest concentration that a drug achieves in the blood after administration in a dosing interval. The Cmax of ritonavir was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Time to Maximum Plasma Concentration (Tmax) of Ritonavir
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ritonavir using validated analytical methods. The time to maximum plasma concentration (Tmax; measured in hours) is the time it takes for a drug to achieve Cmax. The Tmax of ritonavir was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Area Under the Plasma Concentration-time Curve From 0 to 24 Hours (AUC24) Post-dose of Ritonavir
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ritonavir using validated analytical methods. The area under the plasma concentration-time curve (AUC; measured in ng*hr/mL) is a method of measurement to determine the total exposure of a drug in blood plasma. The AUC24 of ritonavir was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Maximum Plasma Concentration (Cmax) of ABT-072
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-072 using validated analytical methods. The maximum plasma concentration (Cmax; measured in ng/mL) is the highest concentration that a drug achieves in the blood after administration in a dosing interval. The Cmax of ABT-072 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Time to Maximum Plasma Concentration (Tmax) of ABT-072
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-072 using validated analytical methods. The time to maximum plasma concentration (Tmax; measured in hours) is the time it takes for a drug to achieve Cmax. The Tmax of ABT-072 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Area Under the Plasma Concentration-time Curve From 0 to 24 Hours (AUC24) Post-dose of ABT-072
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-072 using validated analytical methods. The area under the plasma concentration-time curve (AUC; measured in ng*hr/mL) is a method of measurement to determine the total exposure of a drug in blood plasma. The AUC24 of ABT-072 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Maximum Plasma Concentration (Cmax) of ABT-333
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-333 using validated analytical methods. The maximum plasma concentration (Cmax; measured in ng/mL) is the highest concentration that a drug achieves in the blood after administration in a dosing interval. The Cmax of ABT-333 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Time to Maximum Plasma Concentration (Tmax) of ABT-333
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-333 using validated analytical methods. The time to maximum plasma concentration (Tmax; measured in hours) is the time it takes for a drug to achieve Cmax. The Tmax of ABT-333 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Area Under the Plasma Concentration-time Curve From 0 to 12 Hours (AUC12) Post-dose of ABT-333
Blood samples were collected immediately prior to morning dose (time 0 hours) and at 2, 4, 8, and 12 hours after the morning dose on Day 1. The samples were analyzed for the concentration of ABT-333 using validated analytical methods. The area under the plasma concentration-time curve (AUC; measured in ng*hr/mL) is a method of measurement to determine the total exposure of a drug in blood plasma. The AUC12 of ABT-333 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Measured: Immediately prior to morning dose (time 0 hours) and at 2, 4, 8, and 12 hours after the morning dose on Day 1
Secondary outcomes (3)
Percentage of Participants With Rapid Virologic Response (RVR) at Week 4
Plasma hepatitis C virus ribonucleic acid (HCV RNA) levels were determined for each sample using a real-time reverse transcriptase-polymerase chain reaction (RT-PCR) assay that had a lower limit of detection of 10 IU/mL and a lower limit of quantification (LLOQ) of 25 IU/mL. Rapid virologic response was defined as HCV RNA level < LLOQ (< 25 IU/mL) at Week 4. Data are reported as the percentage of participants with RVR.
Measured: Week 4
Percentage of Participants With Partial Early Virologic Response (EVR) at Week 12
Plasma hepatitis C virus ribonucleic acid (HCV RNA) levels were determined for each sample using a real-time reverse transcriptase-polymerase chain reaction (RT-PCR) assay that had a lower limit of detection of 10 IU/mL and a lower limit of quantification of 25 IU/mL. Partial early virologic response (EVR) was defined as HCV RNA levels that decreased > 2 log10 IU/mL at Week 12 as compared to baseline. The baseline value was the last measurement before the first dose on Day 1. Data are reported as the percentage of participants with partial EVR.
Measured: Baseline and Week 12
Percentage of Participants With Complete Early Virologic Response (cEVR) at Week 12
Plasma hepatitis C virus ribonucleic acid (HCV RNA) levels were determined for each sample using a real-time reverse transcriptase-polymerase chain reaction (RT-PCR) assay that had a lower limit of detection of 10 IU/mL and a lower limit of quantification (LLOQ) of 25 IU/mL. Complete EVR was defined as HCV RNA levels < LLOQ (< 25 IU/mL) at Week 12. Data are reported as the percentage of participants with cEVR.
Measured: Week 12
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Feb 2010 (estimated)
- Study startMar 2010
- Primary completionJun 2011
- Study completionJan 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Hepatitis CStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 74 participants (actual)
Sponsor and investigators
- Lead sponsor
- AbbVie (prior sponsor, Abbott)
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Daniel Cohen, Study director, AbbVie
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01074008
- Sponsor's protocol ID
- M11-602
- Acronym
- Champion2
- Status last verified
- Dec 2014
- First submitted
- 22 Feb 2010
- Last updated
- 8 Jan 2015
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Pilot-Matias T, Tripathi R, Cohen D, Gaultier I, Dekhtyar T, Lu L, Reisch T, Irvin M, Hopkins T, Pithawalla R, Middleton T, Ng T, McDaniel K, Or YS, Menon R, Kempf D, Molla A, Collins C. In vitro and in vivo antiviral activity and resistance profile of the hepatitis C virus NS3/4A protease inhibitor ABT-450. Antimicrob Agents Chemother. 2015 Feb;59(2):988-97. doi: 10.1128/AAC.04227-14. Epub 2014 Dec 1.
PubMed 25451053
Study at a glance
From the registry record, last updated by the sponsor on 8 Jan 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Blinded, Randomized, Placebo-controlled, Dose Ranging Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Antiviral Activity of Multiple Doses of ABT-450 With Ritonavir (ABT-450/r), ABT-333 or ABT-072 Each Administered Alone and in Combination With Peginterferon α-2a and Ribavirin (PegIFN/RBV) in Treatment-Naïve Subjects With Genotype 1 Chronic Hepatitis C Virus (HCV) Infection
- ClinicalTrials.gov ID
- NCT01074008
- Acronym / sponsor ID
- Champion2 / M11-602
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 74 participants (actual)
- Lead sponsor
- AbbVie (prior sponsor, Abbott)Industry (pharma, biotech, devices)
- Study start
- Mar 2010
- Primary completion
- Jun 2011 (actual)
- Study completion
- Jan 2012 (actual)
- First posted
- 24 Feb 2010 (estimated)
- Results
- Posted 8 Jan 2015
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study assessed the safety, tolerability, pharmacokinetics, and antiviral activity of multiple oral doses of ABT-450/ritonavir (r), ABT-333 (also known as dasabuvir), or ABT-072 in hepatitis C virus (HCV), genotype 1-infected, treatment-naïve adults.
Detailed description
This was a Phase 2a, randomized, blinded, placebo-controlled, dose-ranging study in chronically, hepatitis C virus (HCV) genotype 1-infected participants designed to explore the safety, tolerability, pharmacokinetics, antiviral activity, as well as the evolution and persistence to resistance of ABT-450/r, ABT-333, or ABT-072. Participants were treated with ABT-450/r, ABT-333, or ABT-072 monotherapy for 3 days, followed by 81 days (12 weeks minus 3 days of monotherapy) of ABT-450/r, ABT-333, or ABT-072 combined with pegylated interferon/ribavirin (pegIFN/RBV), followed by 36 weeks of pegIFN/RBV alone. Participants randomized to an ABT-450/r treatment group who achieved rapid virologic response (RVR) and had HCV ribonucleic acid (RNA) levels < 25 IU/mL at all subsequent visits were eligible to stop pegIFN/RBV therapy on or after Week 24.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 9
| Arm | Type | Receives |
|---|---|---|
| ABT-450/r (50/100 mg) once daily (QD) + pegIFN/RBV | Experimental | Drug: ABT-450, Drug: Ritonavir, Drug: Peginterferon alpha-2a, Drug: RibavirinParticipants received 50 mg ABT-450 and 100 mg ritonavir (r) monotherapy once daily for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
| ABT-450/r (100/100 mg) once daily (QD) + pegIFN/RBV | Experimental | Drug: ABT-450, Drug: Ritonavir, Drug: Peginterferon alpha-2a, Drug: RibavirinParticipants received 100 mg ABT-450 and 100 mg ritonavir (r) monotherapy once daily for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
| ABT-450/r (200/100 mg) once daily (QD) + pegIFN/RBV | Experimental | Drug: ABT-450, Drug: Ritonavir, Drug: Peginterferon alpha-2a, Drug: RibavirinParticipants received 200 mg ABT-450 and 100 mg ritonavir (r) monotherapy once daily for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
| ABT-072 (100 mg) once daily (QD) + pegIFN/RBV | Experimental | Drug: ABT-072, Drug: Peginterferon alpha-2a, Drug: RibavirinParticipants received 100 mg ABT-072 monotherapy once daily for 3 days followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
| ABT-072 (300 mg) once daily (QD) + pegIFN/RBV | Experimental | Drug: ABT-072, Drug: Peginterferon alpha-2a, Drug: RibavirinParticipants received 300 mg ABT-072 monotherapy once daily for 3 days followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
| ABT-072 (600 mg) once daily (QD) + pegIFN/RBV | Experimental | Drug: ABT-072, Drug: Peginterferon alpha-2a, Drug: RibavirinParticipants received 600 mg ABT-072 monotherapy once daily for 3 days followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
| ABT-333 (400 mg) twice a day (BID) + pegIFN/RBV | Experimental | Drug: ABT-333, Drug: Peginterferon alpha-2a, Drug: RibavirinParticipants received 400 mg ABT-333 monotherapy twice a day for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
| ABT-333 (800 mg) twice daily (BID) + pegIFN/RBV | Experimental | Drug: ABT-333, Drug: Peginterferon alpha-2a, Drug: RibavirinParticipants received 800 mg ABT-333 monotherapy twice a day for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
| Placebo + pegIFN/RBV | Placebo comparator | Drug: Peginterferon alpha-2a, Drug: Ribavirin, Other: PlaceboParticipants received matching placebo for ABT-450/r, ABT-072, or ABT-333 monotherapy at each dose level for 3 days, followed by the addition of pegylated interferon/ribavirin (pegIFN/RBV) for a total of 12 weeks of combination treatment, followed by 36 weeks of pegIFN/RBV alone. Pegylated interferon was dosed at 180 µg subcutaneously once a week and RBV was dosed 1000 or 1200 mg daily divided twice a day. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Chronic hepatitis C virus (HCV), genotype 1 infection (HCV ribonucleic acid level greater than or equal to 100,000 IU/mL) at screening
- Liver biopsy within 3 years with histology consistent with HCV-induced liver damage, with no evidence of cirrhosis or liver pathology due to any cause other than chronic HCV
- Treatment naïve male or female between the ages of 18 and 65
- Females must be post-menopausal for more than 2 years or surgically sterile
- Negative screen for drugs and alcohol
Key exclusion criteria (5 listed)
- Significant sensitivity to any drug
- Use of herbal supplements within 2 weeks prior to study drug dosing
- History of major depression within 2 years
- Prior treatment with any investigational or commercially available anti-HCV agents
- Abnormal laboratory tests
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ABT-45050 mg capsules co-administered with ritonavir | Drug | ABT-450/r (100/100 mg) once daily (QD) + pegIFN/RBV, ABT-450/r (200/100 mg) once daily (QD) + pegIFN/RBV, ABT-450/r (50/100 mg) once daily (QD) + pegIFN/RBV |
| ABT-07250 mg tablet | Drug | ABT-072 (100 mg) once daily (QD) + pegIFN/RBV, ABT-072 (300 mg) once daily (QD) + pegIFN/RBV, ABT-072 (600 mg) once daily (QD) + pegIFN/RBV |
| ABT-333Also: Dasabuvir400 mg tablet | Drug | ABT-333 (400 mg) twice a day (BID) + pegIFN/RBV, ABT-333 (800 mg) twice daily (BID) + pegIFN/RBV |
| RitonavirAlso: ABT-538, Norvir100 mg capsules co-administered with ABT-450 | Drug | ABT-450/r (100/100 mg) once daily (QD) + pegIFN/RBV, ABT-450/r (200/100 mg) once daily (QD) + pegIFN/RBV, ABT-450/r (50/100 mg) once daily (QD) + pegIFN/RBV |
| Peginterferon alpha-2aSyringe, 180 µg/0.5 mL for subcutaneous injections | Drug | ABT-072 (100 mg) once daily (QD) + pegIFN/RBV, ABT-072 (300 mg) once daily (QD) + pegIFN/RBV, ABT-072 (600 mg) once daily (QD) + pegIFN/RBV, ABT-333 (400 mg) twice a day (BID) + pegIFN/RBV, ABT-333 (800 mg) twice daily (BID) + pegIFN/RBV, ABT-450/r (100/100 mg) once daily (QD) + pegIFN/RBV, ABT-450/r (200/100 mg) once daily (QD) + pegIFN/RBV, ABT-450/r (50/100 mg) once daily (QD) + pegIFN/RBV, Placebo + pegIFN/RBV |
| Ribavirin200 mg tablet dosed at 1000 or 1200 mg daily divided twice a day | Drug | ABT-072 (100 mg) once daily (QD) + pegIFN/RBV, ABT-072 (300 mg) once daily (QD) + pegIFN/RBV, ABT-072 (600 mg) once daily (QD) + pegIFN/RBV, ABT-333 (400 mg) twice a day (BID) + pegIFN/RBV, ABT-333 (800 mg) twice daily (BID) + pegIFN/RBV, ABT-450/r (100/100 mg) once daily (QD) + pegIFN/RBV, ABT-450/r (200/100 mg) once daily (QD) + pegIFN/RBV, ABT-450/r (50/100 mg) once daily (QD) + pegIFN/RBV, Placebo + pegIFN/RBV |
| PlaceboMatching placebo for ABT-450/r, ABT-072, or ABT-333 monotherapy at each dose level | Other | Placebo + pegIFN/RBV |
Primary outcome
Maximal Change From Baseline in Hepatitis C Virus Ribonucleic Acid (HCV RNA) Levels During ABT-450/r, ABT-333, or ABT-072 Monotherapy Treatment
Time frame: Prior to dosing on Day 1 to before the morning dose on Day 4
Plasma HCV RNA levels (reported as log10 IU/mL) were determined for each sample using a real-time reverse transcriptase-polymerase chain reaction (RT-PCR) assay that had a lower limit of detection of 10 IU/mL and a lower limit of quantification of 25 IU/mL. The baseline value was the HCV RNA level before the first dose of study drug on Day 1. The maximal change during monotherapy was the difference from baseline to the lowest log10 HCV RNA level anytime after the first dose of study drug on Day 1 through the last log10 HCV RNA level before the first dose of study drug on Day 4. Data are reported as the mean ± standard deviation.
Maximum Plasma Concentration (Cmax) of ABT-450
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-450 using validated analytical methods. The maximum plasma concentration (Cmax; measured in ng/mL) is the highest concentration that a drug achieves in the blood after administration in a dosing interval. The Cmax of ABT-450 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Time to Maximum Plasma Concentration (Tmax) of ABT-450
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-450 using validated analytical methods. The time to maximum plasma concentration (Tmax; measured in hours) is the time it takes for a drug to achieve Cmax. The Tmax of ABT-450 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Area Under the Plasma Concentration-time Curve From 0 to 24 Hours (AUC24) Post-dose of ABT-450
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-450 using validated analytical methods. The area under the plasma concentration-time curve (AUC; measured in ng*hr/mL) is a method of measurement to determine the total exposure of a drug in blood plasma. The AUC24 of ABT-450 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Maximum Plasma Concentration (Cmax) of Ritonavir
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ritonavir using validated analytical methods. The maximum plasma concentration (Cmax; measured in ng/mL) is the highest concentration that a drug achieves in the blood after administration in a dosing interval. The Cmax of ritonavir was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Time to Maximum Plasma Concentration (Tmax) of Ritonavir
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ritonavir using validated analytical methods. The time to maximum plasma concentration (Tmax; measured in hours) is the time it takes for a drug to achieve Cmax. The Tmax of ritonavir was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Area Under the Plasma Concentration-time Curve From 0 to 24 Hours (AUC24) Post-dose of Ritonavir
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ritonavir using validated analytical methods. The area under the plasma concentration-time curve (AUC; measured in ng*hr/mL) is a method of measurement to determine the total exposure of a drug in blood plasma. The AUC24 of ritonavir was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Maximum Plasma Concentration (Cmax) of ABT-072
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-072 using validated analytical methods. The maximum plasma concentration (Cmax; measured in ng/mL) is the highest concentration that a drug achieves in the blood after administration in a dosing interval. The Cmax of ABT-072 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Time to Maximum Plasma Concentration (Tmax) of ABT-072
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-072 using validated analytical methods. The time to maximum plasma concentration (Tmax; measured in hours) is the time it takes for a drug to achieve Cmax. The Tmax of ABT-072 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Area Under the Plasma Concentration-time Curve From 0 to 24 Hours (AUC24) Post-dose of ABT-072
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-072 using validated analytical methods. The area under the plasma concentration-time curve (AUC; measured in ng*hr/mL) is a method of measurement to determine the total exposure of a drug in blood plasma. The AUC24 of ABT-072 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Maximum Plasma Concentration (Cmax) of ABT-333
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-333 using validated analytical methods. The maximum plasma concentration (Cmax; measured in ng/mL) is the highest concentration that a drug achieves in the blood after administration in a dosing interval. The Cmax of ABT-333 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Time to Maximum Plasma Concentration (Tmax) of ABT-333
Time frame: Immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose)
Blood samples were collected immediately prior to morning dose (time 0 hours); 2, 4, 8, 12, and 16 hours after the morning dose on Day 1; and prior to dose on Day 2 (24 hours after Day 1 dose). The samples were analyzed for the concentration of ABT-333 using validated analytical methods. The time to maximum plasma concentration (Tmax; measured in hours) is the time it takes for a drug to achieve Cmax. The Tmax of ABT-333 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
Area Under the Plasma Concentration-time Curve From 0 to 12 Hours (AUC12) Post-dose of ABT-333
Time frame: Immediately prior to morning dose (time 0 hours) and at 2, 4, 8, and 12 hours after the morning dose on Day 1
Blood samples were collected immediately prior to morning dose (time 0 hours) and at 2, 4, 8, and 12 hours after the morning dose on Day 1. The samples were analyzed for the concentration of ABT-333 using validated analytical methods. The area under the plasma concentration-time curve (AUC; measured in ng*hr/mL) is a method of measurement to determine the total exposure of a drug in blood plasma. The AUC12 of ABT-333 was estimated using non-compartmental methods and data are reported as the mean ± standard deviation.
3 secondary outcomes
Percentage of Participants With Rapid Virologic Response (RVR) at Week 4
Time frame: Week 4
Percentage of Participants With Partial Early Virologic Response (EVR) at Week 12
Time frame: Baseline and Week 12
Percentage of Participants With Complete Early Virologic Response (cEVR) at Week 12
Time frame: Week 12
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jan 2015.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 25451053Pilot-Matias T, Tripathi R, Cohen D, Gaultier I, Dekhtyar T, Lu L, Reisch T, Irvin M, Hopkins T, Pithawalla R, Middleton T, Ng T, McDaniel K, Or YS, Menon R, Kempf D, Molla A, Collins C. In vitro and in vivo antiviral activity and resistance profile of the hepatitis C virus NS3/4A protease inhibitor ABT-450. Antimicrob Agents Chemother. 2015 Feb;59(2):988-97. doi: 10.1128/AAC.04227-14. Epub 2014 Dec 1.
- Related InfoLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Daniel Cohen study director
AbbVie
26 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing ABT-450, ABT-072 and ABT-333 in people with Hepatitis C and HCV, run by AbbVie (prior sponsor, Abbott) at 26 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 8 Jan 2015. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 26 sites in United States, Puerto Rico. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 8 Jan 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Maximal Change From Baseline in Hepatitis C Virus Ribonucleic Acid (HCV RNA) Levels During ABT-450/r, ABT-333, or ABT-072 Monotherapy Treatment (time frame: Prior to dosing on Day 1 to before the morning dose on Day 4). The study lists 13 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01074008, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jan 2015.