A Phase III, Randomized, Double-Blinded, Dummy-Controlled Study of the Efficacy and Safety of ThermoDox® (Thermally Sensitive Liposomal Doxorubicin) in Combination With Radiofrequency Ablation (RFA) Compared to RFA-Alone in the Treatment of Non-Resectable Hepatocellular Carcinoma
This will be a Phase III, randomized, double-blinded, dummy-controlled, efficacy, and safety
study of ThermoDox plus RFA versus RFA plus dummy infusion.
The 50 mg/m2 ThermoDox or dummy infusion will be administered IV over 30 minutes. As part of
blinded pre-medication ThermoDox treated subjects will receive 20 mg of dexamethasone orally
48 hours prior to the drug infusion for infusion reaction prophylaxis. Subjects on the
control arm will receive a matching dummy pre-medication pill orally at 48 hours prior to
infusion of the study treatment. Thirty minutes prior to receiving the ThermoDox infusion,
subjects will receive a blinded dose of 20 mg of IV dexamethasone, 50 mg IV diphenhydramine
and either 50 mg of IV ranitidine or 20 mg of IV famotidine. Subjects on the control arm
will receive a masked dummy pre-medication pill orally at 48 hours prior to infusion of the
study medication, and a dummy infusion 30 minutes prior to dummy infusion of D5W (250 cc of
5% Dextrose solution). RFA will be initiated approximately at a minimum of 15 minutes after
the initiation of study drug infusion and should be completed no later than 3 hours after
study drug infusion initiation. The total length of the RFA procedure is proportional to the
size of the tumor(s) involved and is anticipated to range from 12 to 60 minutes for each
lesion with an estimated overall procedure time of less than 3 hours.
Subjects with incomplete ablations will be re-treated to complete the ablation according to
the treatment assigned at randomization. The completion of an ablation in this manner will
restart the timeline of the study-related visits/procedures. This repeated ablation
procedure cannot occur earlier than 21 days post-ablation but no later than 14 days after
the first post-ablation CT scan assessment. These subjects will start over at screening (see
Table 1). If a complete ablation is not achieved after these two study treatments, the
subject will be considered a treatment failure and the patient will be discontinued and
followed for survival only.
Subjects who recur with local and/or distant intrahepatic HCC after a complete initial
ablation will have met the primary endpoint of progression-free survival. However, if these
subjects have lesions that are amenable to RFA the standard of care is to consider them for
repeat RFA. Therefore, these subjects may receive treatment to which they were randomized if
they continue to meet the inclusion and exclusion criteria of the protocol. Subjects who
develop any extrahepatic lesion will have met the primary endpoint and will be discontinued
from study treatment but will still be followed for overall survival.
Dynamic Contrast CT imaging will be used to assess the effectiveness of the ablation
therapy. The blind will be maintained at the level of CT scan reads. All protocol-specified
CT images will be centrally read and assessed by the endpoint committee in a blinded
fashion. Posttreatment CT scans will be obtained at months 1, 3, 5, 7, 9 and 12 and every
three months thereafter until withdrawal. Adverse event assessments and laboratory
examinations will occur at each visit. All subjects will be monitored throughout the
investigational period.
Patients that meet inclusion/exclusion criteria may be at risk for contrast-induced
nephropathy (CIN) when undergoing the required CT with contrast procedures. The
investigators must be mindful of the risk factors (e.g. diabetes, borderline renal function)
associated with CIN and employ strategies to reduce the risk of CIN. In subjects with
diabetes or borderline renal function (creatinine greater than 1.5 mg/dL) special
precautions (e.g. hydration, contrast dose reduction, follow up creatinine determination)
should be employed. An accepted procedure is adequate intravenous volume expansion with
isotonic saline (1.0 - 1.5 mL/kg per hour) for 3-12 hours before the procedure and continued
for 6-24 hours.
All randomized subjects will be followed for safety and overall survival.
Interventional
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Progression Free Survival will be measured from the date of randomization to the first date on which one of the following occurs. o Local recurrence o Any new distant intrahepatic HCC tumor o Any new extrahepatic HCC tumor o Death from any cause
3 years
No
Ronnie T Poon, M.D.
Study Director
Queen Mary Hospital, University of Hong Kong
United States: Food and Drug Administration
104-06-301
NCT00617981
February 2008
December 2015
Name | Location |
---|---|
Mayo Clinic | Rochester, Minnesota 55905 |
Mount Sinai School of Medicine | New York, New York 10029 |
Temple University Hospital | Philadelphia, Pennsylvania 19140 |
Cleveland Clinic | Cleveland, Ohio 44195 |
University of Texas Health Science Center | San Antonio, Texas 78284 |
University of Louisville | Louisville, Kentucky 40202 |
UCLA | Los Angeles, California 90095 |
Mayo Clinic - Jacksonville, Florida | Jacksonville, Florida 32224 |
Geisinger Health System | Wilkes Barre, Pennsylvania 18711 |