- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02110069
A Study to Compare Vincristine to Sirolimus for Treatment of High Risk Vascular Tumors
A Randomized Phase 2 Study of Vincristine Versus Sirolimus to Treat High Risk Kaposiform Hemangioendothelioma (KHE).
In this research study we want to learn more about which treatment works better for patients diagnosed with a vascular tumor called Kaposiform Hemangioendothelioma (KHE) or other high risk vascular tumors such as Tufted Angioma (TA). In these tumors, the blood cells that help your blood clot called platelets become trapped in the tumor causing swelling, pain, and bruising. Vascular tumors can be life threatening. There are few medical treatments that will work to shrink the vascular tumor. Some doctors will use steroids and vincristine to try and shrink vascular tumors.
In this research study, the study doctor will compare two different drugs to see which one will work better to help shrink your vascular tumor. One of the drugs is vincristine. Vincristine is approved by the Food and Drug Administration (FDA) to treat people with cancer. Vincristine is used to stop the abnormal cells from growing such as cells that make up blood vessels.
The other drug to be used in this study is sirolimus. Sirolimus is currently approved by the Food and Drug Administration (FDA) to prevent transplanted organ rejection. Sirolimus is not approved by the FDA for treatment of vascular abnormalities and is considered experimental. Sirolimus belongs to a class of drugs call 'mTOR inhibitors'. mTOR (mammilian target of rapamycin) helps cells to grow and may also help blood vessels to grow in a more normal fashion. Sirolimus is currently being tested in patients with vascular tumors and cancer. In vascular tumors, we hope sirolimus will stop the blood vessel growth.
Funding Source: FDA - OOPD (Office of Orphan Products Development)
Study Overview
Status
Intervention / Treatment
Detailed Description
Kaposiform hemangioendotheliomas (KHE) are extremely rare life threatening tumors which can be associated with Kasabach-Merritt Phenomenon consisting of profound thrombocytopenia and hypofibrinogenemia causing a significant risk of bleeding and an associated mortality rate as high as 20% to 30%. Despite the severity of potential complications, we lack uniform guidelines for the treatment and response to treatment of children and young adults with these tumors. KHE patients have been treated with a multitude of aggressive drug regimens without prospective evaluation of response or safety. Presently, vincristine is considered the standard of practice. We have treated a subset of these patients on study SIR-DA-0901 (FDA Grant# 5RO1FD003712-01). This study is a phase II trial assessing the efficacy and safety of sirolimus for the treatment of complicated vascular anomalies. Although the numbers are small, the response has been extremely promising with excellent tolerability. There is pre-clinical and clinical data supporting the essential regulatory function of the PI3 kinase/AKT/mTOR pathway in vascular growth and organization which suggests a therapeutic target for patients with complicated vascular anomalies. The overall goal of this trial is to objectively assess the efficacy of sirolimus compared to vincristine for the treatment of patients with high risk KHE.
Hypothesis: Sirolimus treatment for children and young adults with Kaposiform hemangioendotheliomas will be more effective than vincristine, assessed by time to response in an induction period and provide equivalent safety parameters.
Study Rationale We propose a multi-center, phase II trial with participation from 8 sites. The study will consist of two phases. The first of these is an initial induction phase in which vincristine and steroids will be compared to sirolimus and steroids. Response in the induction phase will be assessed as time to hematologic response. At the end of induction phase, cross over can occur if there is failure to respond. Part 2 is a maintenance phase which will be 1 year in length. Continued safety and efficacy data will be collected during maintenance and there will be cross over at any time for patients who lose their response following induction. Failure will be defined as worsening of hematological parameters on two separate laboratory evaluations at any time during maintenance or if they meet the definition of progressive disease following response assessments. Formal response in maintenance will be evaluated by imaging studies, functional assessment, and quality of life as per study SIR-DA-0901. Present therapies are very limited and new therapies are desperately needed for this devastating disease. Based on our preliminary data, there is a very good rationale for sirolimus therapy in KHE patients and so a phase II trial is urgently needed to determine if this therapy is to become the new standard of care for KHE patients.
Our secondary aims will be addressing biomarker analysis. There are limited studies describing the biology of these tumors. Per study SIR-DA-0901 there is some preliminary data indicating the importance of VEGF-C and other upregulated markers in the mTor pathway. This needs to be further investigated especially in KHE patients. Furthermore there are no clear objective measurements to determine response data.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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California
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Palo Alto, California, United States, 94304
- Lucille Packard Children's Hospital Stanford
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Georgia
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Atlanta, Georgia, United States, 30322
- Emory Children's Healthcare of Atlanta
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Maryland
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Baltimore, Maryland, United States, 21287
- Johns Hopkins
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Massachusetts
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Boston, Massachusetts, United States, 02115
- Boston Children's Hospital
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Ohio
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Cincinnati, Ohio, United States, 45229
- Cincinnati Children's Hospital Medical Center
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Texas
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Houston, Texas, United States, 77094
- Texas Children's Hospital
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Wisconsin
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Milwaukee, Wisconsin, United States, 53226
- Medical College of Wisconsin
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
Diagnosis: All patients must have one of the following vascular anomalies as determined by clinical, radiologic and histologic criteria (when possible). Biopsy strongly recommended (but not required) with suggested immunostains: CD34, PROX-1 or D240, Glut-1 and MIB-1.
- Kaposiform Hemangioendotheliomas
- Tufted angioma
High Risk Stratification: In addition to the above diagnosis, all of the following criteria need to be met:
a. Kasabach Merritt Syndrome defined at a platelet counts less than 50,000 K/µl and/or fibrinogen level < 100 mg/dl at the time of diagnosis.
- Age: Patients must be 0 - 31 years of age at the time of study entry. Enrollment includes patients of both genders and all ethnic groups.
Organ function requirements:
Adequate liver function defined as:
- Total bilirubin ≤ 1.5 x ULN for age, and
- SGPT (ALT) ≤ 5 x ULN for age, and
- Serum albumin >/= 2 g/dL.
- Fasting LDL cholesterol of <160 mg/dL
- Fasting triglyceride <400 mg/dl
Adequate Bone Marrow Function defined as:
- Peripheral absolute neutrophil count (ANC) >/= 1000/uL
- Hemoglobin >/= 8.0 g/dL (may receive RBC transfusions)
- No Platelet requirement
Adequate Renal Function Defined as:
A serum creatinine based on age as follows:
Age (Years) Maximum Serum Creatinine (mg/dL)
- 5 0.8 6 to ≤10 1.0 11 to ≤15 1.2 >15 1.5
- Urine protein to creatinine ratio (UPC) < 0.3 g/l
- Performance Status: Karnofsky >/= 50 (≥16 years of age) and Lansky >/= 50 for patients <16 years of age.
Prior therapy
- Patients who have undergone surgical resection or interventional radiology procedures for disease control are eligible if they meet all inclusion criteria after surgery/procedure
- Surgery: At least 2 weeks since undergoing any major surgery
- Radiation: > 6 months from involved field radiation
- Prior vincristine therapy is permitted. Patients may also have received up to 2 doses of vincristine prior to randomization.
Exclusion Criteria:
- Concurrent severe and/or uncontrolled medical disease that could compromise participation in the study (e.g. uncontrolled diabetes, uncontrolled hypertension, severe infection, severe malnutrition, chronic liver or renal disease, active upper GI tract ulceration).
- Patients who require medications that are strong inhibitors/inducers CYP3A4 enzyme activity, including anticonvulsants, (Appendix II) to control concurrent medical conditions are not eligible. Patients who discontinue use of prohibited medications with a one week washout prior to start of study treatment are eligible.
- Known history of HIV seropositivity or known immunodeficiency. Testing is not required unless a condition is suspected.
- Impairment of gastrointestinal function or gastrointestinal disease that may significantly alter the absorption of sirolimus (e.g. ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome or small bowel resection). A gastric tube or nasogastric tube is allowed.
- Females who are pregnant or breast feeding.
- Males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method during the period they are receiving the study drug and for 3 months thereafter. Abstinence is an acceptable method of birth control. Females of childbearing potential will be given a pregnancy test within 7 days prior to administration of study treatment and must have a negative urine or serum pregnancy test.
- Patients who have received prior treatment with an mTOR inhibitor.
- Patients unwilling or unable to comply with the protocol or who in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study.
- Patients who currently have an uncontrolled infection, defined as receiving intravenous antibiotics.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Active Comparator: Vincristine
Induction phase: participants assigned to vincristine will receive vincristine weekly at a dose of 0.05mg/kg/dose IV (for participants less than 10kg) or a dose of 1.5 mg/m2/dose (for participants greater than 10kg) for 2 months. Maintenance: if participants continue to receive vincristine weekly for 2 months, every 2 weeks for 5 months and every 3 weeks for 5 months. |
Vincristine dose dependent upon weight.
Weekly for 2 months (Induction); Weekly 2 months; every 2 weeks for next 5 months; every 3 weeks for 5 months (Maintenance)
Other Names:
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Experimental: Sirolimus
Sirolimus will be administered at a dose of 0.8mg/m2/dose twice a day on a continuous dosing schedule throughout the trial for participants randomized to Sirolimus or for participants who fail vincristine may cross-over to the sirolimus arm. Sirolimus trough levels will be maintained between 10-15 ng/ml. |
Continuous dosing to maintain trough level of 10-15ng/ml.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Hematologic Parameters
Time Frame: 2 months
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Hematologic parameters are defined as a platelet count greater than 100,000/uL (or a 2 times increase in platelet count compared to baseline) and a fibrinogen level greater than 150mg/dl.
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2 months
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Number of Serious and Non-Serious Adverse Events
Time Frame: 2 months; 12 months
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Serious and non-serious adverse events will be recorded for all participants and graded using CTCAE v4.0 (Common Toxicity Criteria for Adverse Effects).
Adverse event rates will be calculated for both sirolimus and vincristine.
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2 months; 12 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Evaluation of Disease Response - Maintenance
Time Frame: 6 months; 12 months
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Disease evaluation will be measured using a combination of quality of life assessments, clinical parameters, and radiologic images.
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6 months; 12 months
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Number of Serious and Non Serious Adverse Events - Maintenance
Time Frame: 6 months; 12 months
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Serious adverse events and adverse events will be graded according to CTCAE v4.0.
Adverse event rates will be calculated for both sirolimus and vincristine.
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6 months; 12 months
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Change in the Serum Levels of KHE Biomarkers
Time Frame: Baseline, 2 months, 6 months, and 12 months
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The following KHE biomarkers will be evaluated vascular endothelial growth factor A, C, and D (VEGF-A, C, D_, IL-8 (interleukin), Pleiotrophin, IGF-1 (insulin-like growth factor), endothelin-1, thrombospondin and angiopoietin 1 and 2.
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Baseline, 2 months, 6 months, and 12 months
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Identify Genetic Variants in Drug Metabolism Enzymes.
Time Frame: Baseline
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Single nucleotide polymorphism array analysis to obtain genetic information on variants in drug metabolism enzymes that affect sirolimus and vincristine metabolism.
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Baseline
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Denise Adams, MD, Boston Children's Hospital
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Virus Diseases
- Infections
- Neoplasms, Connective and Soft Tissue
- Neoplasms by Histologic Type
- Neoplasms
- Hematologic Diseases
- DNA Virus Infections
- Thrombocytopenia
- Blood Platelet Disorders
- Herpesviridae Infections
- Sarcoma
- Neoplasms, Vascular Tissue
- Hemangioma
- Sarcoma, Kaposi
- Hemangioendothelioma
- Kasabach-Merritt Syndrome
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Antineoplastic Agents
- Immunosuppressive Agents
- Immunologic Factors
- Tubulin Modulators
- Antimitotic Agents
- Mitosis Modulators
- Antineoplastic Agents, Phytogenic
- Anti-Bacterial Agents
- Antibiotics, Antineoplastic
- Antifungal Agents
- Vincristine
- Sirolimus
Other Study ID Numbers
- SIR-DA-1202
- 1R01FD004363-01A1 (U.S. FDA Grant/Contract)
- 2013-2339 (Other Identifier: CCHMC IRB)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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