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Antineoplastic Agents

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Etoposide

Cyclophosphamide

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Liposomal doxorubicin

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Lenograstim

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Sirolimus

Etoposide phosphate

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Ganciclovir

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Anti-Retroviral Agents

Patients not responding to high- dose zidovudine and valganciclovir alone may be treated with botezomib plus high- dose zidovudine and valganciclovir

Single agent sirolimus for patients where targeted oncolytic virotherapy seems suboptimal

EPOCH chemotherapy with rituximab may be utilized to rescue such patients, with the intent of stabilizing suchpatients

Rituximab with liposomal doxorubicin (R-Dox) followed by consolidation or lmaintenancel therapy with dose escalating interferon-alpha

Etoposide 50 mg/m2 /day continuous intravenous infusion (CIVI) over 24 hours x 4 days (days 1-4) of 21 day cycle. A maximum of 6 cycles of R-EPOCH-R will be administered except in exceptional circumstances.

Ages 18 and over: Initial dose of 7.5 million units subcutaneous, three times weekly x 14 days; subsequent dosesincrease dose as tolerated each 14 days to a maximum of 45 million units subcutaneous three times weekly; Ages 12-17: Initial dose of 5 million units/m2 subcutaneous, three times weekly x 14 days Subsequent doses: Increase dose as tolerated each 14 days to a maximum of 30 million units/m2 subcutaneous, three times weekly

Rituximab 375 mg/m2 IV day 1, shall be administered prior to Doxil injection. When combined with EPOCH chemotherapy, Rituximab will be given on days 1 and 5.

Cycle 1: Zidovudine 600 mg PO QID x 7-21 days in outpatient setting;600 mg PO q6hours x 7-21 (Intravenous zidovudine 300 mg q 6 hours may be substituted) days for inpatients; Cycle 2 and beyond: 600 mg PO QID x 7 days in outpatient setting; 600 mg PO q 6 hours x 7 days (300 mg q 6 hours may be substituted)

21 day cycle; 20 mg/m2 Liposomal Doxorubicin given on day 1 and shall be administered after completion of Rituximab infusion from 2 to 6 cycles.

Liposomal Doxorubicin

1.3 mg/m2 IV days 1, 4, 8, and 11. Cycle length is 21 days.

Cycle 1: Valganciclovir 900 mg PO BID x 7-21 days in outpatient setting; 900 mg PO q 12 hours x 7-21 days for inpatients; Cycle 2 and beyond: 900 mg PO BID x 7 days for outpatients; 900 mg PO q 12 hours x 7 days (Intravenous ganciclovir 5 mg/kg may be substituted) for inpatients

10 mg/m2 /day CIVI over 24 hours x 4 days (days 1-4) of 21 day cycle.

0.4 mg/m2 /day CIVI over 24 hours x 4 days (days 1-4) of 21 day cycle.

Cyclophosphamide: if CD4 \< 100 cells/mm3, 187 mg/m2 IV (Day 5) if CD4 greater than or equal to 100 cells/mm3, 375 mg/m2 IV (Day 5) of 21 day cycle.

Filgrastim 300 micrograms subcutaneous daily beginning day 6 until absolute neutrophil count recovery 5000 cells/mm3 (Pegfilgrastim may be substituted with PI approval, at the recommended dose of one 6mg syringe)

Filgrastim (G-CSF)

Prednisone 60 mg/m2/day PO x 5 days (days 1-5)of 21 day cycle.

Maximum daily dose of 40 mg given as a single agent on 21 day cycle.

Observation Only

Robert Yarchoan, M.D.

This study will gain information about a rare disorder called KSHV-associated multicentric Castleman s disease (MCD). KSHV, a virus, causes several kinds of cancer, including some forms of MCD. KSHV stands for the Kaposi s sarcoma herpes virus, also called human herpes virus-8, or HHV-8. Researchers want to understand the biology of KSHV-MCD to identify how this disease causes illness and to find ways to treat it. There is no standard therapy effective for all cases of KSHV-MCD. The disease is often fatal, and about half the people who have it die within 2 years of diagnosis.

Participants ages 18 and older may be eligible for this study. Participation entails more drawing of blood and having repeated tumor biopsies than if patients received treatment in a non-research setting. Researchers would like to learn more about the relationship of KSHV and Castleman s disease symptoms, and they want to obtain at least three biopsies in this study.

There are some side effects of experimental therapy that participants may take for KSHV-MCD. Zidovudine, or Retrovir , is used at a high dose. It is given orally or through a vein, four times daily, for 7 days or longer. Zidovudine can cause nausea, vomiting, decreased bone marrow function, and decreased blood counts. Combined with valganciclovir, or Valcyte , it is likely to be more toxic to bone marrow. Valganciclovir can cause problems with bone marrow function, leading to low blood counts, sterility, and defects in a fetus. Combined with zidovudine, valganciclovir may cause more toxicity to the bone marrow. It is given twice daily for 7 days or longer. Bortezomib, or Velcade , is given for a few seconds by a rapid push through a needle into the vein. It is given twice weekly for four doses and then stopped for 1 week. Bortezomib can sometimes cause low blood pressure; it also can cause gastrointestinal problems and a low blood platelet count. Rituximab and liposomal doxorubicin are drugs given by a catheter into a vein. Interferon-alpha is given by injection into the skin. Those drugs are not experimental, but their use in Castleman s disease is experimental.

Some participants may be treated with a combination of chemotherapy followed by interferon-alpha. Interferon-alpha is infected into the skin by a needle. The natural form of interferon is produced by the body and helps to control viral infections. KSHV decreases the effect of the body s interferon, and the researchers want to see if giving higher doses of interferon will help to control KSHV infection.

A positron emission tomography (PET) scan, for research purposes only, may be done up to three times a year. A radioactive sugar molecule called fluorodeoxyglucose, or FDG, is used. It is believed that activated lymphocytes that may be found in participants disease might use more FDG because these cells burn more glucose fuel.

This study may or may not have a direct benefit for participants. However, detailed assessments made throughout the study may provide information to help the doctors treat KSHV-MCD better.

Background:

* Multicentric Castleman's disease (MCD) is a rare but lethal Kaposi's sarcoma-associated herpesvirus (KSHV) associated lymphoproliferative disorder with a median survival of 2 years. It occurs more often in HIV-infected individuals than those without HIV infection. The poor prognosis is not fully explained by the underlying HIV, as the HIV-negative cases appear to have no survival advantage over the HIV-positive cohort. The disease has no defined standard treatment and has not been prospectively studied in a comprehensive manner.
* KSHV-MCD may provide a model for the development of targeted oncolytic virotherapy or other pathogenesis-based approaches to viral-associated malignancies. In KSHV-MCD, viral encoded tyrosine kinase genes appear to be possible targets to exploit in a virotherapy approach. Specific viral encoded genes appear to convert zidovudine and ganciclovir (or valganciclovir) into toxic phosphorylated moieties within the KSHV-infected tumor cells, to specifically target the KSHV-infected cells thus leading to specific cell death. If successful, this could have direct therapeutic benefit to participants and also provide a model for further development of this approach in other tumors.

Objectives

-To study and describe the natural history of KSHV-MCD.

Eligibility

* Age greater than or equal to 18 years
* Biopsy proven KSHV-associated MCD

Design

* Natural History study
* Inclusion of treatment as needed, with guidelines for preliminary investigation of a variety of specific treatments of interest

  * High-dose zidovudine and ganciclovir
  * High-dose zidovudine and ganciclovir and bortezomib
  * Sirolimus
  * Rituximab with liposomal doxorubicin followed by interferon-alpha
  * Rituximab with EPOCH chemotherapy

Virotherapy and Natural History Study of KHSV-Associated Multricentric Castleman s Disease With Correlates of Disease Activity

Targeted Oncolytic Virotherapy and Natural History Study of KSHV-Associated Multicentric Castleman's Disease With Laboratory and Clinical Correlates of Disease Activity

percentage of patients alive until study closure

Quantify the number of flares requiring treatment in patients enrolled in this study

National Cancer Institute (NCI)

This study will gain information about a rare disorder called KSHV-associated multicentric Castleman s disease (MCD). KSHV, a virus, causes several kinds of cancer, including some forms of MCD. KSHV stands for the Kaposi s sarcoma herpes virus, also called human herpes virus-8, or HHV-8. Researchers want to understand the biology of KSHV-MCD to identify how this disease causes illness and to find ways to treat it. There is no standard therapy effective for all cases of KSHV-MCD. The disease is often fatal, and about half the people who have it die within 2 years of diagnosis.

Participants ages 18 and older may be eligible for this study. Participation entails more drawing of blood and having repeated tumor biopsies than if patients received treatment in a non-research setting. Researchers would like to learn more about the relationship of KSHV and Castleman s disease symptoms, and they want to obtain at least three biopsies in this study.

There are some side effects of experimental therapy that participants may take for KSHV-MCD. Zidovudine, or Retrovir , is used at a high dose. It is given orally or through a vein, four times daily, for 7 days or longer. Zidovudine can cause nausea, vomiting, decreased bone marrow function, and decreased blood counts. Combined with valganciclovir, or Valcyte , it is likely to be more toxic to bone marrow. Valganciclovir can cause problems with bone marrow function, leading to low blood counts, sterility, and defects in a fetus. Combined with zidovudine, valganciclovir may cause more toxicity to the bone marrow. It is given twice daily for 7 days or longer. Bortezomib, or Velcade , is given for a few seconds by a rapid push through a needle into the vein. It is given twice weekly for four doses and then stopped for 1 week. Bortezomib can sometimes cause low blood pressure; it also can cause gastrointestinal problems and a low blood platelet count. Rituximab and liposomal doxorubicin are drugs given by a catheter into a vein. Interferon-alpha is given by injection into the skin. Those drugs are not experimental, but their use in Castleman s disease is experimental.

Some participants may be treated with a combination of chemotherapy followed by interferon-alpha. Interferon-alpha is infected into the skin by a needle. The natural form of interferon is produced by the body and helps to control viral infections. KSHV decreases the effect of the body s interferon, and the researchers want to see if giving higher doses of interferon will help to control KSHV infection.

A positron emission tomography (PET) scan, for research purposes only, may be done up to three times a year. A radioactive sugar molecule called fluorodeoxyglucose, or FDG, is used. It is believed that activated lymphocytes that may be found in participants disease might use more FDG because these cells burn more glucose fuel.

This study may or may not have a direct benefit for participants. However, detailed assessments made throughout the study may provide information to help the doctors treat KSHV-MCD better.

...

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Virotherapy and Natural History Study of KHSV-Associated Multricentric Castleman s Disease With Correlates of Disease Activity	NCT00092222	Lymphoprolifera... HHV-8 Malignancy HIV	Etoposide Interferon-alph... Rituximab Zidovudine Liposomal Doxor... Bortezomib Valganciclovir Doxorubicin Vincristine Cyclophosphamid... Filgrastim (G-C... Prednisone Sirolimus Observation Onl...	18 Years -	National Institutes of Health Clinical Center (CC)
Virotherapy and Natural History Study of KHSV-Associated Multricentric Castleman s Disease With Correlates of Disease Activity	NCT00092222	Lymphoprolifera... HHV-8 Malignancy HIV	Etoposide Interferon-alph... Rituximab Zidovudine Liposomal Doxor... Bortezomib Valganciclovir Doxorubicin Vincristine Cyclophosphamid... Filgrastim (G-C... Prednisone Sirolimus Observation Onl...	18 Years -	National Institutes of Health Clinical Center (CC)

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