Patients Starting Treatment:
Thanks to the efforts of the MMRF, there is tremendous progress in the field of myeloma research and scientific advances now offer and unprecedented opportunity to treat myeloma patients. This section will help you better understand the treatment options for myeloma. It provides information about how treatments are chosen, and the goals and outcomes of treatment, as well as an overview of currently available therapies and how they are used in myeloma.
Information regarding treatments for the disease is constantly changing, and the MMRF will update this section as new discoveries take place. The MMRF advises patients and caregivers to work with their physicians regarding specific questions relating to treatment and urges health care professionals to share this information with their patients.
Information about specific treatments can be found using the links below.
What factors help determine treatment?
Deciding on a particular treatment for myeloma is a complex process. Treatment is tailored to each patient according to several factors, including:
Patients with myeloma can be classified as having either inactive disease or active disease.
Inactive disease is asymptomatic disease that does not require immediate treatment. Patients with inactive disease do not have evidence of any myeloma-related organ or tissue impairment (also known as end-organ damage). Inactive disease includes the following classifications subtypes of myeloma:
Active disease is symptomatic disease that requires treatment. Patients with Stage II and Stage III disease fall into this category.
Click here for more information on myeloma staging and classification.
The treatment options available to a patient also take into account their disease status, that is, whether they have already received therapy and if so, what was the outcome.
Patients with newly diagnosed disease are individuals who have myeloma that has not yet been treated.
Patients who have received therapy may fall into several categories:
Treatment regimens may be designed to meet one or more different therapeutic goals, which can include:
What are the potential outcomes of treatment?
There are several potential outcomes of treatment in myeloma, which can be categorized based on levels of M protein and other disease parameters. Stringent response criteria, such as those listed in the table below, are used to define response to therapy in myeloma clinical trials. Recently revised response criteria known as the International Myeloma Working Group (IMWG) Uniform Response Criteria are now being incorporated in some new myeloma trials. Note that response may also be referred to as remission; these terms are interchangeable.
Potential Outcomes of Treatmenta
|Type of Response||M Protein||% Plasma Cells in Bone Marrow||Skeletal Disease (On X-ray)|
|Complete Response (CR)||No longer detectable in blood and/or urine; negative immunofixation test||<5%||Stable|
|Near complete response(nCR)b||No longer detectable in blood and/or urine, but positive immunofixation test||<5%||Stable|
|Very good partial response (VGPR)c||No longer detectable in blood and/or urine, but positive immunofixation test, or 90% decrease||N/A||Stable|
|Partial response (PR)||=50% decrease||N/A||Stable|
|Minimal response (MR)d||25%-49% decrease||N/A||Stable|
|Stable disease (SD)||Not meeting the definition of minimal response or progressive disease|
|Progressive disease (PD)||>25% increase||>25% increase||New bone lesions or increase in size of existing lesions|
aThese outcomes are based on criteria developed by the EBMT (European Group for Blood and Marrow Transplant),IBMTR (International Bone Marrow Transplant Registry), and ABMTR (Autologous Blood and Marrow TransplantRegistry; Bláde criteria), and the International Myeloma Working Group (IMWG Uniform Response Criteria).
bSome clinical trials modify the EBMT criteria to include the nCR category.
cOnly defined in the IMWG criteria.
dOnly defined in the EBMT criteria. >/p>
We have made much progress in our understanding of myeloma and the development of many new effective therapies. However, we have yet to achieve the maximal benefit possible with regard to patient survival and improvement in quality of life. For these reasons, patients with myeloma should strongly consider participating in a clinical trial if it is an appropriate option for them.
Myeloma therapy is tailored to each patient. It is important to note that there is no one "standard therapy" for active myeloma. The treatment regimens that are often referred to as standard therapies are those that have been traditionally used for the treatment of the disease and proven effective in clinical trials.
The various treatments used in myeloma are summarized in the table below.
|Velcade® (bortezomib, Millennium: The Takeda Oncology Company) for Injection||Proteasome inhibitor approved for use across the entire spectrum of myeloma disease|
|Revlimid® (lenalidomide,Celgene)||Oral agent that is an improvement over Thalomid and is effective across the spectrum of myeloma disease; approved for use in combination with dexamethasone in individuals who previously received treatment|
|Thalomid® (thalidomide,Celgene)||Oral agent show to effective across the spectrum of myeloma disease; approved in combination with dexamethasone as front-line therapy|
|Doxil® (doxorubicin HCl liposome injection, Ortho Biotech)||Chemotherapy agent approved for use in combination with Velcade for individuals who previously received therapy other than Velcade|
|Steroids (corticosteroid)||May be used alone or in combination with other therapies|
|Conventional (standard dose) chemotherapy||The use of drug(s), administered alone or in combination, to kill cancer cells. Low-dose melphalan (Alkeran®, Celgene, GlaxoSmithKline) is a chemotherapy agent used frequently for the treatment of myeloma|
|High-dose chemotherapy and stem cell transplanation||The use of higher doses of chemotherapy drugs followed by transplantation of stem cells to replace those damaged by the chemotherapy|
|Radiation therapy||The use of high-energy rays to damage cancer cells and prevent them from growing|
|Supportive therapy||Therapies that alleviate symptoms and manage complications of the disease and its treatment, such as bisphosphonates for bone disease, low-dose radiation therapy and analgesics for pain relief, growth factors, antibiotics, intravenous immunoglobulin, orthopedic interventions, anticoagulants, antiemetics, and drugs to prevent and reduce the severity of neuropathy (nerve damage)|
Treatment of myeloma can be a complex process because many factors must be taken into account, such as the patient's overall state of health, other medical issues/diseases, and how well the disease is currently controlled, as well as the type, number, and response to previous therapy. Moreover, there is no single test result that can lead to a diagnosis of myeloma and determine its prognosis; many factors must be considered.
Many centers have developed their own guidelines for treating myeloma and these may vary from center to center. The National Comprehensive Cancer Network (NCCN) has also developed a set of general practice guidelines to aid physicians in treating myeloma. These guidelines indicate particular therapies that have been deemed appropriate based on a review of the literature and on the expertise and clinical experience of a panel of experts. (NCCN Practice Guidelines in Oncology. Multiple Myeloma. Available at www.nccn.org.)
To further advance therapy for multiple myeloma, it is highly suggested that all eligible patients be included on clinical trials. Clinical trials, especially Phase II and Phase III trials, are designed to be at least as effective as what is considered standard therapy.
Treatment approaches to myeloma depend on whether a patient has inactive or active disease. This section provides an overview of the various treatment approaches and therapeutic options for myeloma.
Patients with inactive (asymptomatic) disease are typically observed and not treated unless their disease begins to progress. No therapy is recommended outside of a clinical trial unless there is evidence of active disease with end organ damage. However, in some cases, bisphosphonates and other forms of supportive care may be appropriate for patients with smoldering myeloma or Stage 1 disease. Participation in a clinical trial is also an option. For example, agents such as thalidomide are being tested in patients with inactive disease. You can access the MMRF Patient Navigator Program to see what clinical trial options might be appropriate for you.
Find out more about Supportive Care.
Find a trial using the MMRF Patient Navigator Program.
Patients with newly-diagnosed, active (symptomatic) myeloma typically receive some form of initial therapy, as well as bisphosphonates and supportive care as required to treat bone disease and other complications of the disease. Subsequent treatment options are often decided based on previous treatments received and the outcome.
The pathway below and the text that follows outline the typical options available to a newly-diagnosed patient with symptomatic myeloma requiring treatment. Participation in a clinical trial is an option at virtually every step in the pathway.
The choice of initial therapy is dependent on whether a patient is a candidate for high-dose chemotherapy and stem cell transplant. Patients under the age of 65 in good physical condition with adequate kidney, lung, and heart function are potential transplant candidates. However, older patients may be eligible if they are in very good health.
Dex = dexamethasone; MP = melphalan and prednsione; Thal = Thalomid
Individuals Who Are Not Candidates for a Transplant
Advances in myeloma research have expanded the treatment options for individuals who are not candidates for stem cell transplantation. For these individuals, drugs are given at standard doses to avoid damage to normal cells. At one time, the most common initial treatment was the combination of melphalan and the corticosteroid prednisone (a combination referred to as MP). Now however, Velcade (bortezomib), Revlimid (lenalidomide) and Thalomid (thalidomide) are being combined with MP for use as front-line therapy. These drug combinations have been shown to offer improved response rates compared with standard MP. However, the increased efficacy must be balanced against a potential increase in side effects.
In addition, regimens that are options for individuals who are candidates for stem cell transplantation may also be appropriate for individuals who are not transplant candidates. These include regimens such as low-dose dexamethasone in combination with Revlimid, Thalomid, or Velcade, and other Velcade-based regimens, as described below.
Initial therapy for myeloma is continued for about a year or until the response of the disease to the treatment reaches a plateau. At that time, the individual may be followed-up closely with no therapy (often referred to as "observation") or the doctor may ask the individual to consider maintenance therapy, which may be also done with the patient participating in a clinical trial.
Individuals Who Are Candidates for a Transplant
Stem cell transplantation involves the use of higher than conventional doses of chemotherapy, and the stem cells provided by the transplant replace normal cells damaged by the chemotherapy. This approach offers a chance for a good response and survival, but the individual must be able to tolerate the side effects of the higher doses of chemotherapy. Therefore, potential candidates must be in good physical condition, with adequate kidney, lung, and heart function.
Before the transplant is done, initial treatment, referred to as induction therapy, is given to reduce the amount of myeloma cells. Because prolonged use of melphalan may impair the ability to collect stem cells for use in a transplant, MP and MP-based regimens are not options for transplant candidates.
One of the most commonly used induction therapies had been the combination of Thalomid and dexamethasone (Thal-dex). However, Revlimid and Velcade, in combination with dexamethasone and other agents, are now being used more frequently as induction therapy. For example:
- Revlimid and low-dose dexamethasone (known as Revlimid-low-dose dex) has been found to be a highly effective induction regimen and is associated with better outcomes than Revlimid and high-dose dexamethasone; it may also be better tolerated.
- Velcade-based regimens, such as Velcade and dexamethasone (Velcade-dex); Revlimid, Velcade, and dexamethasone (Rev-Vel-dex); Velcade, Thalomid, and dexamethasone (Velcade-Thal-dex); and Velcade and Doxil, may also be options for individuals who are candidates for a transplant.
Participation in a clinical trial, such as one evaluating an investigational induction regimen that includes Velcade, Revlimid, Thalomid, or Doxil, is also an appropriate option for patients considering a transplant.
High Dose Chemotherapy and Stem Cell Transplantation
Stem cells are normally found in the bone marrow and in the peripheral blood (blood found in the arteries or veins). Virtually all transplants in myeloma are now obtained from the peripheral blood and are referred to as peripheral blood stem cell (PBSC) transplants.
Stem cell transplantation is done after completion of induction therapy. With an autologous transplant, the individual's stem cells are collected (also called "harvested") and are reintroduced following high-dose chemotherapy.
An allogeneic transplant involves collecting stem cells from a donor (usually a relative of the individual with myeloma) and infusing them into the individual after high-dose therapy. This type of transplant is infrequently performed today because of the high risk of complications. A mini (nonmyeloablative) allogeneic transplant is a modified form of allogeneic transplant in which a lower dose of chemotherapy is used.
- Should I be treated now or should therapy be delayed?
- What is the expected outcome of the treatment? What are the goals of this therapy (is it given primarily to treat the disease or to relieve symptoms)?
- What is the recommended treatment? Is it a single drug or a combination of drugs? How is the drug administered: orally or intravenously (by IV)? How long is treatment given? How will I be monitored?
- Am I a candidate for stem cell transplantation? If so, what kind — autologous or allogeneic?
- How likely is a complete or partial remission? What factors contribute to better or worse odds?
- How will I feel during and after treatment? What kinds of side effects might I expect? What should I do if I experience side effects? What kind of impact will treatment have on my daily life?
- How long is the typical recovery time? Is there any follow-up or maintenance therapy?
- What is the cost of therapy? What costs will my insurance cover and what costs will I have to pay?
- What are the alternatives to this treatment? How do the different therapies (standard and alternative) compare with respect to effectiveness and side effects?
- Are there any clinical trials that are appropriate for me? If so, what is involved? What are the potential risks and benefits? What are the costs?
- If one or more types of treatment fails, what are my options?