Trial results
AI generated results summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
According to the results reported on ClinicalTrials.gov, this trial involved people with hepatitis C who had low platelet counts (platelets are tiny blood cells that help with clotting). The trial had two stages. In the first, open stage, 715 people received the study drug eltrombopag to see if it could raise their platelet count high enough to start hepatitis C antiviral treatment. In the second, blinded stage — where neither participants nor their doctors knew who was receiving which treatment — 682 people who had completed the first stage were randomly assigned to receive either eltrombopag plus antiviral therapy (450 people) or a placebo (a dummy pill) plus antiviral therapy (232 people). The main thing being measured was whether participants' hepatitis C virus became undetectable and stayed that way for 24 weeks after finishing treatment — a result known as a "sustained virologic response." The reported data shows that, in the blinded phase, 104 out of 450 participants in the eltrombopag-plus-antiviral group and 33 out of 232 participants in the placebo-plus-antiviral group achieved this undetectable virus result at 24 weeks after treatment ended. Regarding platelet counts, the reported data shows that in the first open stage, 691 of the 715 participants had their platelet count rise from below 75 to at or above 90 (the threshold needed to start antiviral treatment). During the blinded stage, platelet counts in the placebo group dropped more steeply over time — falling to a midpoint (median) of around 40–43 at certain time points — compared to the eltrombopag group, where the midpoint count remained higher, around 86–90 at similar time points. The reported data also shows that during the blinded stage, 63 people in the placebo group had a minimum platelet count that fell below 25, compared to 12 in the eltrombopag group. Conversely, more people in the eltrombopag group (245) had a minimum count in the 50–90 range, compared to 19 in the placebo group. These figures describe what was counted and measured in the trial; they do not on their own tell us whether any outcome is better or worse for any individual. These are the results as reported to ClinicalTrials.gov. They are not medical advice — always discuss what they mean for you with your doctor.
View full results on ClinicalTrials.gov ↗ · Read the linked publication on PubMed (PMID 26173631) ↗
These are the results as reported to ClinicalTrials.gov, not medical advice. Verify independently with the trial site and discuss what they mean for you with your doctor.
Phase 3 Hepatitis C Trial, Completed
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- People aged over 18 years, both male and female
- People who have been confirmed to have a long-term hepatitis C virus (HCV) infection
- People who are considered suitable candidates for a combination antiviral treatment called peginterferon and ribavirin
- People whose platelet count (a measure of blood clotting cells) is below 75,000 per microlitre
- People whose haemoglobin level (a measure of red blood cells) is above 11.0 g/dL for men, or above 10.0 g/dL for women
- People whose neutrophil count (a type of immune cell) is above 750 per cubic millimetre, and who have no history of infections linked to low neutrophil levels
- People whose kidneys are working well enough to clear waste at a rate above 50 mL per minute
- People who are able to use two effective forms of contraception during treatment and for 24 weeks after treatment ends (this applies to all people who are capable of having children)
- People who are able to understand what the trial involves, give their consent, follow the study requirements, and are expected to complete the full study
Who may not be able to join:
- People who previously received a full course of peginterferon and ribavirin treatment but did not respond to it — unless the reason for not responding was a low platelet count
- People whose liver disease has become severe, for example those with a Child-Pugh score above 6, or a history of or current fluid build-up in the abdomen (ascites), or episodes of confusion caused by liver failure (hepatic encephalopathy)
- People who have a known allergy, intolerance, or sensitivity to interferon, ribavirin, eltrombopag, or any of their ingredients
- People who have serious heart, brain/blood vessel, or lung disease that would prevent safe treatment with peginterferon and ribavirin
- People who have attempted suicide or been hospitalised for depression in the past 5 years
- People who currently have a severe or poorly controlled mental health condition
- People who had a severe or poorly controlled mental health condition more than 6 months ago but less than 5 years ago may be able to participate, but would first need to be assessed by a mental health professional and followed up if recommended
- People who have a seizure disorder that has not been well controlled
- People who have had a significant episode of bleeding from swollen veins in the oesophagus or stomach (oesophageal or gastric varices)
- People who have blood disorders affecting the shape or function of red blood cells, such as sickle cell anaemia or thalassemia major
- People who have a history of a blood clot in an artery or vein, AND also have two or more of the following risk factors: an inherited clotting disorder, hormone replacement therapy, hormonal contraception containing oestrogen, smoking, diabetes, high cholesterol, medication for high blood pressure, or cancer treatment
- People who have significant pre-existing heart disease classified as Grade III or IV by standard heart disease scales, or certain heart rhythm problems linked to a risk of blood clots, or a heart electrical measurement (QTc interval) above 450 milliseconds
- People who have signs of liver cancer (hepatocellular carcinoma)
- People who have HIV infection or an active hepatitis B virus infection
- People who have a condition associated with active bleeding, or who need blood-thinning medications such as heparin or warfarin
- People who have received cancer treatment or immune-modifying treatment within 6 months before the first dose of the study drug
- People who have been diagnosed with or treated for cancer within the past 5 years — with some exceptions, such as certain skin cancers treated by surgical removal, or people whose cancer has been fully treated and where a cancer specialist considers the outlook to be excellent (confirm with trial site)
- Women who are pregnant or breastfeeding
- Men whose female partner is currently pregnant
- People who have had issues with alcohol or drug dependence within 6 months before the study starts, unless they are currently enrolled in a supervised rehabilitation programme
- People who have taken an experimental drug or interferon within 30 days or 5 half-lives (whichever is longer) before their screening visit
- People who have a history of platelet clumping that makes it impossible to get a reliable platelet count reading
- People who have had a major organ transplant and still have a working transplanted organ
- People who have a thyroid condition that is not adequately managed
- People who are planning to have cataract surgery during the study period
- People who have shown signs of a blood clot in the portal vein (the main vein supplying the liver) on a scan taken within 3 months before the start of the study
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: GSK Clinical Trials, GlaxoSmithKline
Australian sites
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
7 site(s) in Australia. Confirm current status and contact details directly with the trial site.
Primary endpoints
Number of Participants With Sustained Virologic Response (SVR) in the Double-blind (DB) Antiviral Treatment Phase
Can't join this trial?
Data last synced from ClinicalTrials.gov: 15 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.