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About
The goal of this clinical research study is to find the highest tolerable dose of Siltuximab that can be given in combination with Velcade (bortezomib), Revlimid (lenalidomide), and dexamethasone to patients with MM. The safety of this drug combination will also be studied.
Full description
The Study Drugs:
Siltuximab is designed to block IL-6, which is a protein that plays an important role in the survival of myeloma cancer cells. This may slow the growth of cancer cells or cause the cancer cells to die.
Bortezomib is designed to block a protein that plays a role in cell function and growth. This may cause cancer cells to die.
Lenalidomide is designed to kill the myeloma cells and may change the body's immune system. It may also interfere with the development of tiny blood vessels that help support tumor growth. This may slow the growth of cancer cells.
Dexamethasone is a corticosteroid that is similar to a natural hormone made by your body. Dexamethasone is often given to MM patients in combination with other chemotherapy to treat cancer.
Study Groups:
If you are found to be eligible to take part in this study, based on when you join the study you will be enrolled in the Phase I or Phase II portion. If you are in Phase I, you will be assigned to a dose level of Siltuximab based on when you join this study. Up to 2 dose levels of Siltuximab will be tested. Three (3) to 6 participants will be enrolled at each dose level. The first group of participants will receive the highest dose level. If intolerable side effects are seen in the first group, the next group will receive a lower dose.
All participants will receive the same dose level of bortezomib, lenalidomide, and dexamethasone.
After the highest tolerable dose level is found, up to an extra 54 participants will receive the study drugs at this dose level in the Phase II part of the study.
Study Drug Administration:
Induction Therapy - Each cycle is 21 days. On Days 1, 4, 8, and 11 of Cycle 1 up to Cycle 8 (induction therapy), you will receive bortezomib through a needle under the skin or by vein over 3-5 seconds.
On Days 1-14 of every cycle, you will take lenalidomide by mouth 1 time each day. Swallow lenalidomide capsules whole with 1 cup (about 8 ounces) of water. Do not break, chew, or open the capsules.
On Day 1 of every cycle, you will receive Siltuximab by vein over 1 hour.
On Days 1, 2, 4, 5, 8, 9, 11, and 12 of Cycles 1-8 (induction therapy), you will take dexamethasone by mouth 1 time a day. After 8 cycles, you may continue to take dexamethasone if the doctor thinks it is needed. Dexamethasone should be taken with food.
You can take the study drugs any time during the day but you should take them at the same time every day.
If you miss a dose of lenalidomide, take it as soon as you remember on the same day. If you miss taking your dose for the entire day, take your regular dose the next scheduled day (do NOT take double your regular dose to make up for the missed dose). If you take more than the prescribed dose of lenalidomide, you should seek emergency medical care if needed and contact the study staff right away.
You will be given a study drug dosing calendar for each cycle to record the lenalidomide and dexamethasone you will be taking at home. Please bring the dosing calendar and pill bottles to your study visit at the beginning of each new cycle.
If the doctor thinks it is in your best interest, you may have a stem cell transplant anytime after 4 cycles of induction therapy You will sign a separate consent form that will describe the procedure and the risks in detail.
Maintenance Phase - Each cycle is 28 days. If you want to delay the stem cell transplant, after 4-8 cycles, you will begin the maintenance phase.
During the maintenance phase:
Study Visits:
On Day 1 of Cycle 1:
On Day 1 of Cycles 2-8:
On Days 4 of Cycles 1-8:
-Blood (about 4 tablespoons) will be drawn for routine tests.
On Day 8 of Cycle 1:
-You will have a bone marrow aspirate to better understand how the drugs are affecting the myeloma. To collect a bone marrow aspirate, an area of the hip is numbed with anesthetic, and a small amount of bone marrow is withdrawn through a large needle.
On Days 8 of Cycles 1-8:
-Blood (about 4 tablespoons) will be drawn for routine tests. During Cycle 1, this routine blood draw will include a pregnancy test if you are able to become pregnant.
On Day 11 of Cycles 1-8:
-Blood (about 4 tablespoons) will be drawn for routine tests.
At the end of induction therapy (or if you are going to have a stem cell transplant, at the end of Cycle 4):
On Day 1 of Cycles 9 and beyond (Maintenance Therapy):
Pregnancy Tests:
During induction therapy, if you are a woman who is able to become pregnant and you have regular or no periods, you will have a blood (about 1 tablespoon) or urine pregnancy test weekly for the first 21 days and then every 21 days while on therapy (including breaks in therapy). If you are a woman who is able to become pregnant and your cycles are irregular, you will have a blood (about 1 tablespoon) or urine pregnancy test weekly for the first 21 days during then every 11-14 days while on therapy (including breaks in therapy).
During maintenance therapy, if you are a woman who is able to become pregnant and have regular or no menstruation, you must have a pregnancy test every 28 days while on therapy (including breaks in therapy). If you are a woman who is able to become pregnant and your cycles are irregular, you will have a blood (about 1 tablespoon) or urine pregnancy test every 14 days (+/-1 day) and every 28 days.
Length of Study:
You may stay on study for as long as the disease does not get worse, you have not experienced intolerable side effects, and if the study doctor thinks it is in your best interest.
End-of-Treatment Visit:
Within 1 month after the last dose of study drugs, you will have an end-of-study visit. At this visit, the following tests and procedures will be performed:
Long-Term Follow-Up:
If you go off study for reasons other then the disease getting worse, blood (about 5 tablespoons) will be drawn for routine tests. This will done every 3 months for the first 2 years, every 6 months for Years 3 and 4, and yearly for Years 5 and 6. The long term visits will be to check disease status, survival, long term side effects, and secondary cancers.
This is an investigational study. Siltuximab is not FDA approved or commercially available. It is only being used for research at this time. Bortezomib is FDA approved and commercially available for the front-line treatment of MM. Lenalidomide is FDA approved and commercially available for the treatment of certain types of myelodysplastic syndrome and for use with dexamethasone for patients with MM who have received at least 1 therapy. The use of this drug combination to treat MM is investigational.
Up to 11 patients will take part in this study. All will be enrolled at MD Anderson.
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14 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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