A Phase II Trial Comparing the Quality of Life, Tolerability and Toxicity of PEG Intron With INTRON® A in Patients With Multiple Myeloma

2014-08-27 03:44:49 | BioPortfolio


Multiple myeloma is a rare form of malignancy in which neoplastic plasma cells accumulate in the bone marrow. Most malignant plasma cells continue to produce immunoglobulin. The activity of multiple myeloma can therefore usually be monitored easily by serial measurement of the serum paraprotein levels. Except for a few patients who receive a donor bone marrow transplant, multiple myeloma remains incurable despite intensive chemotherapy. Its course is typically marked by periods of active disease alternating with increasingly shorter remissions.

Interferons are substances produced in human cells in response to a variety of stimuli, such as viral infection. When given to myeloma patients as part of maintenance treatment , interferon-alpha 2 b (INTRONA) has been shown to be of value in prolonging the periods of remission. Until now, INTRONA could only be given as injections under the skin, three times a week. Some patients experience flu-like symptoms with each injection, particularly early on during maintenance therapy. This, as well as the chronic fatigue and even depression that INTRONA can induce may considerably reduce the quality of life of myeloma patients on interferon, so much so that sometimes this useful adjunct to chemotherapy for myeloma has to be stopped.

Recently, a new preparation of interferon namely pegylated interferon (PEG Intron) has become available. It has the advantage of being broken down much more slowly by the body and therefore only needs to be given once a week. This minimises the swings in blood interferon levels that may be responsible for some of the interferon side effects. The safety and superior tolerability of PEG Intron has already been demonstrated in patients with hepatitis C for which it now carries a licence, but not in myeloma patients. Here, we propose to study whether the quality of life and side effect profile of myeloma patients on PEG Intron is better compared to that of Intron®A.

In the main study, consenting eligible myeloma patients who are well and have been established on INTRONA maintenance therapy for at least six weeks will be randomly allocated to receive PEG Intron for three months followed by INTRONA for 3 months, or to continue with INTRONA for 3 months followed by PEG Intron for 3 months. All patients will be monitored regularly for any side effects and will be asked to fill in a quality of life questionnaire at the beginning (i.e. before receiving the first randomised treatment) and at the end of each study period (i.e. at 3 and 6 months). Initially, we are aiming at enrolling 60 patients into this part of the study.

In a smaller sub-study involving only 14 patients initially, we are proposing to investigate whether myeloma patients who need to be taken off Intron®A because of its side effects can tolerate PEG Intron more easily. Should their tolerance of PEG Intron also be poor we would stop the interferon maintenance therapy altogether. However, should PEG Intron be found to be acceptable to them, we intend to switch these patients back to the standard treatment at the end of six weeks treatment with PEG Intron to assess whether they have become more tolerant of Intron®A in the intervening period. Patients will again be monitored carefully for any side effects and will be asked to fill in three quality of life questionnaires (at 0, 6 and 12 weeks).

Study Design

Allocation: Randomized, Control: Active Control, Intervention Model: Crossover Assignment, Masking: Open Label


Multiple Myeloma


Pegylated Interferon, Interferon-alpha2a


Royal Marsden NHS trust
United Kingdom




Royal Marsden NHS Foundation Trust

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:44:49-0400

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Medical and Biotech [MESH] Definitions

Interferon secreted by leukocytes, fibroblasts, or lymphoblasts in response to viruses or interferon inducers other than mitogens, antigens, or allo-antigens. They include alpha- and beta-interferons (INTERFERON-ALPHA and INTERFERON-BETA).

An interferon regulatory factor that is induced by INTERFERONS as well as LMP-1 protein from EPSTEIN-BARR VIRUS. IRF-7 undergoes PHOSPHORYLATION prior to nuclear translocation and it activates GENETIC TRANSCRIPTION of multiple interferon GENES.

An interferon regulatory factor that binds upstream TRANSCRIPTIONAL REGULATORY ELEMENTS in the GENES for INTERFERON-ALPHA and INTERFERON-BETA. It functions as a transcriptional activator for the INTERFERON TYPE I genes.

A family of transcription factors that share an N-terminal HELIX-TURN-HELIX MOTIF and bind INTERFERON-inducible promoters to control GENE expression. IRF proteins bind specific DNA sequences such as interferon-stimulated response elements, interferon regulatory elements, and the interferon consensus sequence.

A non-glycosylated form of interferon beta-1 that has a serine at position 17. It is used in the treatment of both RELAPSING-REMITTING MULTIPLE SCLEROSIS and CHRONIC PROGRESSIVE MULTIPLE SCLEROSIS.

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