A Study to Compare Vincristine to Sirolimus for Treatment of High Risk Vascular Tumors
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ClinicalTrials.gov Identifier: NCT02110069 |
Recruitment Status :
Active, not recruiting
First Posted : April 10, 2014
Last Update Posted : March 2, 2020
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Tracking Information | |||||
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First Submitted Date ICMJE | April 8, 2014 | ||||
First Posted Date ICMJE | April 10, 2014 | ||||
Last Update Posted Date | March 2, 2020 | ||||
Actual Study Start Date ICMJE | June 14, 2017 | ||||
Estimated Primary Completion Date | September 2022 (Final data collection date for primary outcome measure) | ||||
Current Primary Outcome Measures ICMJE |
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Original Primary Outcome Measures ICMJE |
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Change History | |||||
Current Secondary Outcome Measures ICMJE |
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Original Secondary Outcome Measures ICMJE | Same as current | ||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||
Descriptive Information | |||||
Brief Title ICMJE | A Study to Compare Vincristine to Sirolimus for Treatment of High Risk Vascular Tumors | ||||
Official Title ICMJE | A Randomized Phase 2 Study of Vincristine Versus Sirolimus to Treat High Risk Kaposiform Hemangioendothelioma (KHE). | ||||
Brief Summary | 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) |
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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. |
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Study Type ICMJE | Interventional | ||||
Study Phase ICMJE | Phase 2 | ||||
Study Design ICMJE | Allocation: Randomized Intervention Model: Parallel Assignment Masking: None (Open Label) Primary Purpose: Treatment |
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Condition ICMJE |
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Intervention ICMJE |
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Study Arms ICMJE |
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Publications * | Not Provided | ||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||
Recruitment Status ICMJE | Active, not recruiting | ||||
Estimated Enrollment ICMJE |
50 | ||||
Original Estimated Enrollment ICMJE | Same as current | ||||
Estimated Study Completion Date ICMJE | December 2026 | ||||
Estimated Primary Completion Date | September 2022 (Final data collection date for primary outcome measure) | ||||
Eligibility Criteria ICMJE | Inclusion Criteria:
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.
Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | up to 31 Years (Child, Adult) | ||||
Accepts Healthy Volunteers ICMJE | No | ||||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
Listed Location Countries ICMJE | United States | ||||
Removed Location Countries | |||||
Administrative Information | |||||
NCT Number ICMJE | NCT02110069 | ||||
Other Study ID Numbers ICMJE | SIR-DA-1202 1R01FD004363-01A1 ( U.S. FDA Grant/Contract ) 2013-2339 ( Other Identifier: CCHMC IRB ) |
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Has Data Monitoring Committee | Yes | ||||
U.S. FDA-regulated Product |
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IPD Sharing Statement ICMJE |
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Responsible Party | Denise Martin Adams, Boston Children's Hospital | ||||
Study Sponsor ICMJE | Boston Children's Hospital | ||||
Collaborators ICMJE | Pfizer | ||||
Investigators ICMJE |
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PRS Account | Boston Children's Hospital | ||||
Verification Date | February 2020 | ||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |