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CompletedNCT00002849Updated Mar 6, 2015

S9628 Dexamethasone Plus Interferon Alfa in Treating Patients With Primary Systemic Amyloidosis

A Phase 2 interventional study of recombinant interferon alfa and dexamethasone in Multiple Myeloma, sponsored by SWOG Cancer Research Network. Completed at 40 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-03-06.

Sponsored by SWOG Cancer Research Network · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
93
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

RATIONALE: Chemotherapy plus interferon alfa may be effective for primary systemic amyloidosis.

PURPOSE: Phase II trial to study the effectiveness of dexamethasone plus interferon alfa in treating patients who have primary systemic amyloidosis.

Read the detailed description

OBJECTIVES:

  • Evaluate M protein and organ dysfunction responses and overall and progression-free survival in patients with primary systemic amyloidosis treated with dexamethasone/interferon alfa.
  • Identify prognostic factors that may relate to response and overall survival in these patients.
  • Evaluate the qualitative and quantitative toxic effects of this regimen.

OUTLINE: Patients are stratified by prior amyloidosis treatment (yes vs no).

All patients receive induction therapy with oral dexamethasone on days 1-4, 9-12, and 17-20 every 35 days for a total of 3 courses.

Maintenance therapy begins within 5-8 weeks (within 10 weeks if patients undergo stem cell harvest) of initiation of the third course of induction, as follows: oral dexamethasone for 4 days every 4 weeks; and subcutaneous interferon alfa 3 times per week. Patients who achieved less than a 50% reduction in serum M protein or urinary Bence-Jones protein and who experienced less than grade 3 toxicity during induction receive 3 additional courses of pulse dexamethasone concurrently with entry to maintenance therapy and the initiation of interferon alfa.

Combination therapy is continued until 2 years from entry; thereafter, interferon is administered alone for at least 3 years, toxicity permitting. Patients with stable disease after 5 years of therapy may discontinue interferon alfa at the discretion of the treating physician.

Patients are followed every 6 months for 2 years and yearly thereafter.

PROJECTED ACCRUAL: A total of 100 patients (50 with prior melphalan/prednisone or iododoxorubicin treatment and 50 without) will be entered over 3 years.

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Conditions studied

  • Multiple Myeloma

Keywords

  • primary systemic amyloidosis
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In context

Multiple Myeloma

3,632 studies on the registry are indexed under Multiple Myeloma; 745 are open to participants now.

This study's enrollment of 93 is above the median of 41 across 2,907 interventional studies indexed under Multiple Myeloma.

Browse Multiple Myeloma studies →

Lead sponsor

SWOG Cancer Research Network is the lead sponsor of 328 studies on the registry; 37 are open to participants now.

Of its 17 completed or terminated interventional studies of FDA-regulated products, 17 (100%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

DISEASE CHARACTERISTICS:

  • Histologically diagnosed primary systemic amyloidosis based on the following:

    • Deposition of fibrillary protein with Congo red positive stain or characteristic electron microscopic appearance
    • Monoclonal light chain protein (Bence-Jones protein) in serum or urine or immunohistochemical studies
    • Evidence of tissue involvement other than carpal tunnel syndrome
    • Diagnostic histologic material available for central pathology review

      • Confirmation of tissue diagnosis at all sites of organ dysfunction encouraged
  • No senile, secondary, localized, dialysis-related, or familial amyloidosis
  • No known therapy-related myelodysplasia

PATIENT CHARACTERISTICS:

Age:

  • Adult

Performance status:

  • SWOG 0-4

Hematopoietic:

  • Not specified

Hepatic:

  • Not specified

Renal:

  • Not specified

Cardiovascular:

  • No NYHA class IV status

Other:

  • No uncontrolled diabetes
  • No active peptic ulcer disease
  • No medical condition that precludes high-dose steroids
  • No second malignancy within 5 years except:
  • Adequately treated nonmelanomatous skin cancer
  • In situ cervical cancer
  • Adequately treated stage I/II cancer in complete remission
  • Not pregnant or nursing
  • Effective contraception required of fertile patients
  • Blood/body fluid analyses within 14 days prior to registration
  • Imaging/exams for tumor measurement within 28 days prior to registration
  • Other screening exams within 42 days prior to registration

PRIOR CONCURRENT THERAPY:

Biologic therapy

  • No prior interferon alfa

Chemotherapy

  • Prior melphalan allowed, but recovered from effects
  • At least 4 weeks since cytotoxic therapy and recovered

Endocrine therapy

  • Prior prednisone allowed, but recovered from effects
  • At least 4 weeks since prior glucocorticoids
  • No prior dexamethasone
  • No planned or concurrent dexamethasone or other therapy for primary systemic amyloidosis

Radiotherapy

  • Not specified

Surgery

  • Not specified
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
93 participants (actual)

Study arms

  • Experimental
    induction and maintenance

    dexamethasone induction followed by alpha interferon maintenance

    Biological: recombinant interferon alfa · Drug: dexamethasone

Interventions

  • Biologicalrecombinant interferon alfa

    first 2 years

    Also known as: alpha interferon

  • Drugdexamethasone

    40 mg\*/d PO 1 - 4, 9 - 12, 17-20 q 35 days for 3 cycles\*

    Also known as: decadron

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What researchers measure

Primary outcomes

  1. response

    50% or more reduction in quantitative immunoglobulin, or if the patient has light-chain disease only, a 50% or more reduction in the urine M-component (Bence-Jones protein).

    Time frame: 10 months

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Study locations

40 sites
  • Rebecca and John Moores UCSD Cancer Center
    La Jolla, California 92093-0658, United States
  • Veterans Affairs Medical Center - San Francisco
    San Francisco, California 94121, United States
  • CCOP - Christiana Care Health Services
    Wilmington, Delaware 19899, United States
  • Lombardi Cancer Center
    Washington, District of Columbia 20007, United States
  • Walter Reed Army Medical Center
    Washington, District of Columbia 20307-5000, United States
  • CCOP - Mount Sinai Medical Center
    Miami Beach, Florida 33140, United States
  • Veterans Affairs Medical Center - Chicago (Westside Hospital)
    Chicago, Illinois 60612, United States
  • University of Chicago Cancer Research Center
    Chicago, Illinois 60637-1470, United States
  • Holden Comprehensive Cancer Center
    Iowa City, Iowa 52242-1009, United States
  • Marlene and Stewart Greenebaum Cancer Center, University of Maryland
    Baltimore, Maryland 21201, United States
  • Dana-Farber Cancer Institute
    Boston, Massachusetts 02115, United States
  • University of Massachusetts Memorial Medical Center - University Campus
    Worcester, Massachusetts 01655, United States
  • Veterans Affairs Medical Center - Minneapolis
    Minneapolis, Minnesota 55417, United States
  • University of Minnesota Cancer Center
    Minneapolis, Minnesota 55455, United States
  • Veterans Affairs Medical Center - Columbia (Truman Memorial)
    Columbia, Missouri 65201, United States
  • Ellis Fischel Cancer Center - Columbia
    Columbia, Missouri 65203, United States
  • Barnes-Jewish Hospital
    Saint Louis, Missouri 63110, United States
  • University of Nebraska Medical Center
    Omaha, Nebraska 68198-7680, United States
  • CCOP - Southern Nevada Cancer Research Foundation
    Las Vegas, Nevada 89106, United States
  • Norris Cotton Cancer Center
    Lebanon, New Hampshire 03756-0002, United States
  • Veterans Affairs Medical Center - Buffalo
    Buffalo, New York 14215, United States
  • Roswell Park Cancer Institute
    Buffalo, New York 14263-0001, United States
  • CCOP - North Shore University Hospital
    Manhasset, New York 11030, United States
  • North Shore University Hospital
    Manhasset, New York 11030, United States
  • Memorial Sloan-Kettering Cancer Center
    New York, New York 10021, United States
  • Weill Medical College of Cornell University
    New York, New York 10021, United States
  • Mount Sinai Medical Center, NY
    New York, New York 10029, United States
  • State University of New York - Upstate Medical University
    Syracuse, New York 13210, United States
  • Veterans Affairs Medical Center - Syracuse
    Syracuse, New York 13210, United States
  • CCOP - Syracuse Hematology-Oncology Associates of Central New York, P.C.
    Syracuse, New York 13217, United States
  • Lineberger Comprehensive Cancer Center, UNC
    Chapel Hill, North Carolina 27599-7295, United States
  • Veterans Affairs Medical Center - Durham
    Durham, North Carolina 27705, United States
  • Duke Comprehensive Cancer Center
    Durham, North Carolina 27710, United States
  • CCOP - Southeast Cancer Control Consortium
    Winston-Salem, North Carolina 27104-4241, United States
  • Comprehensive Cancer Center at Wake Forest University
    Winston-Salem, North Carolina 27157-1082, United States
  • Arthur G. James Cancer Hospital - Ohio State University
    Columbus, Ohio 43210-1240, United States
  • Lifespan: The Miriam Hospital
    Providence, Rhode Island 02906, United States
  • Vermont Cancer Center
    Burlington, Vermont 05401-3498, United States
  • Veterans Affairs Medical Center - White River Junction
    White River Junction, Vermont 05009, United States
  • MBCCOP - Massey Cancer Center
    Richmond, Virginia 23298-0037, United States
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References and documents

Publications

  • Dhodapkar MV, Hussein MA, Rasmussen E, Solomon A, Larson RA, Crowley JJ, Barlogie B; United States Intergroup Trial Southwest Oncology Group. Clinical efficacy of high-dose dexamethasone with maintenance dexamethasone/alpha interferon in patients with primary systemic amyloidosis: results of United States Intergroup Trial Southwest Oncology Group (SWOG) S9628. Blood. 2004 Dec 1;104(12):3520-6. doi: 10.1182/blood-2004-05-1924. Epub 2004 Aug 12. PubMed 15308571 ↗
  • Dhodapkar M, Jacobson J, Hussein M, et al.: High dose dexamethasone (Dex) with maintenance Dex / alpha interferon leads to improved survival in patients with primary systemic amyloidosis: results of US Intergroup Trial Southwest Oncology Group (SWOG) S9628. [Abstract] Proceedings of the American Society of Clinical Oncology 22: A-2278, 2003.
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 6, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00002849
Lead sponsor
SWOG Cancer Research Network
Collaborators
National Cancer Institute (NCI), Cancer and Leukemia Group B
Responsible party
Sponsor
First posted
Jan 27, 2003
Start date
Nov 1996
Primary completion
Dec 1998
Completion
Jul 2000
Last update
Mar 6, 2015

Study contacts

Laura F. Hutchins, MD
study chair · University of Arkansas
Richard A. Larson, MD
study chair · University of Chicago

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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