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Multiple MyelomaPhase 3NCT00083564

Study Comparing STR (Skeletal Targeted Radiotherapy) Plus Melphalan to Melphalan Alone, With Stem Cell Transplant in Multiple Myeloma

A Phase 3 study testing STR(TM) (Skeletal Targeted Radiotherapy, Holmium-166-DOTMP) in people with Multiple Myeloma, run by Poniard Pharmaceuticals at 21 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

STR (Skeletal Targeted Radiotherapy, 166Ho-DOTMP) is an investigational radiopharmaceutical that delivers radiation directly to cancer cells in the bone and bone marrow. Conventional methods of delivering radiation therapy, such as total body irradiation, expose non-target tissues to radiation and cause serious side… Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Multiple Myeloma
What is being tested?
STR(TM) (Skeletal Targeted Radiotherapy, Holmium-166-DOTMP)
How many people
240 participants
Where
21 sitesin 2 countries
Study dates
Mar 2004to not given
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • A subject must meet all of the following criteria to be eligible for the study. These will be evaluated within four weeks prior to enrollment.
  • Subject must have primary refractory multiple myeloma defined as having failed to achieve an objective response (CR or PR using EBMT/IBMTR/ABMTR criteria) to any therapy since the initiation of induction therapy. At least one previous therapy must be a qualifying therapy that includes high dose pulsed steroids.
  • There must be < 18 months from the beginning of induction therapy to time of enrollment on study.
  • Subject must meet institutional guidelines for autologous PBSCT.
  • Subject must have a minimum of 2 x 106 unmanipulated CD34+ cells/kg cryopreserved and available for transplant.
  • Age 18 and 70 years.
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  • Adequate pulmonary function defined by FEV1, FVC and DLCO > or = 50% of predicted.
  • Adequate cardiac function, defined as left ventricular ejection fraction (LVEF) of > or = 45%, with no evidence of cardiac amyloidosis.
  • Adequate liver function, defined as serum total bilirubin < or = 2x institutional laboratory upper limit of normal and ALT/SGPT < or = 3x institutional laboratory upper limit of normal.
  • Adequate renal function, defined as 24 hour measured creatinine clearance of > or = 50 mL/min/1.73 m2 BSA and serum creatinine < or = 1.8 mg/dL.
  • ECOG performance score (PS) of 0, 1, or 2.
  • Women of childbearing potential must have a negative pregnancy test (serum or urine beta HCG) and be using appropriate birth control methods.
  • Ability to understand the study and provide informed consent.

Who cannot join

  • A subject meeting any of the following criteria is not eligible for participation in the study:
  • Non-secretory multiple myeloma.
  • Asymptomatic MGUS, smoldering multiple myeloma, or indolent multiple myeloma.
  • Solitary bone or extramedullary plasmacytoma.
  • Waldenstrom's macroglobulinemia (IgM myeloma).
  • Evidence of disease progression (such as new bone lesions) in the setting of a greater than 50% reduction in M-protein.
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  • Absence of previous therapy with pulsed corticosteroids for multiple myeloma.
  • Previous high-dose therapy with stem cell or bone marrow transplant, including autologous, allogeneic, and reduced-intensity or non-myeloablative allogeneic transplants.
  • Life expectancy severely limited by concomitant illness (less than 6 months).
  • Evidence of symptomatic spinal cord compression or pathological fracture within 3 months.
  • Cumulative external beam radiation to > 20% of marrow volume or > 40 Gy to any single region of the spinal cord.
  • Prior radiation to the bladder or kidney, defined as radiation portals that directly include any volume of either kidney or the bladder.
  • Uncontrolled arrhythmia or symptomatic cardiac disease.
  • Clinical evidence of amyloidosis involving the heart, lungs, liver, kidney, autonomic nervous system, or GI tract.
  • History of hemorrhagic cystitis.
  • Current microscopic or gross hematuria in the absence of vaginal bleeding.
  • Obstructive uropathy.
  • Inability to have bladder catheter placed.
  • Evidence of HIV-seropositivity.
  • Recent history of alcohol or drug abuse.
  • History of non-compliance in other studies.
  • Use of bisphosphonates within 14 days preceding enrollment.
  • Use of any other therapy for multiple myeloma (including standard, induction, investigational, and alternative therapies) within 4 weeks prior to enrollment.
  • Experimental therapies for any other conditions in the four weeks prior to enrollment.
  • Pregnant or lactating women.
  • Known allergy to vitamin C or bisphosphonates.
  • Other prior malignancy except for: adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, or any other cancer from which the subject has been disease-free for 5 years.

Trial locations and contacts

21 sites in 2 countries.

21 sites in 2 countries

United States20 sites
  • Winship Cancer Institute of Emory University

    Atlanta, Georgia, 30322

  • University of Alabama

    Birmingham, Alabama, 35249

  • Case Western Reserve University

    Cleveland, Ohio, 44106

  • Baylor University Medical Center

    Dallas, Texas, 75246

  • Miami Valley Hospital

    Dayton, Ohio, 45409

  • Rocky Mountain Cancer Centers

    Denver, Colorado, 80218

  • Wayne State University, Barbara Ann Karmanos Cancer Institute

    Detroit, Michigan, 48201

  • Duke University Medical Center

    Durham, North Carolina, 27710

  • MD Anderson Cancer Center

    Houston, Texas, 77030

  • University of Iowa Hospital and Clinics

    Iowa City, Iowa, 52242

  • University of Kansas Medical Center

    Kansas City, Kansas, 66160

  • University of Miami

    Miami, Florida, 33136

  • Medical College of Wisconsin

    Milwaukee, Wisconsin, 53208

  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37232

  • University of Nebraska Medical Center

    Omaha, Nebraska, 68198

  • Chao Family Comprehensive Cancer Center, University of California, Irvine

    Orange, California, 92868

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

  • Virginia Commonwealth University

    Richmond, Virginia, 23298

  • Fred Hutchinson Cancer Research Center

    Seattle, Washington, 98109

  • Montefiore Medical Center

    The Bronx, New York, 10467

Other trials in United States

Canada1 site
  • Princess Margaret Hospital

    Toronto, Ontario, M5G 2M9

Other trials in Canada

About this study

Official title: A Randomized Multicenter Study to Compare the Safety and Efficacy of 166Ho-DOTMP Plus Melphalan to Melphalan Alone as Conditioning for Autologous Peripheral Blood Stem Cell Transplant in Subjects With Primary Refractory Multiple Myeloma

STR (Skeletal Targeted Radiotherapy, 166Ho-DOTMP) is an investigational radiopharmaceutical that delivers radiation directly to cancer cells in the bone and bone marrow. Conventional methods of delivering radiation therapy, such as total body irradiation, expose non-target tissues to radiation and cause serious side effects. In contrast, STR's targeted approach to delivering radiotherapy concentrates the radiation where it is needed, and minimizes exposure of normal tissues.

STR is composed of a bone-targeting molecule, DOTMP, in a stable complex with the radionuclide holmium-166. When injected into a patient's bloodstream, STR rapidly binds to bone mineral, delivering a brief, intense dose of radiation to destroy cancer cells in the bone and marrow. The high-energy and long path-length of holmium-166 beta particles provide optimal penetration and uniform irradiation of disease sites in the marrow and bone. STR that does not bind to bone is rapidly eliminated through the urinary tract. STR treatment is followed by autologous stem cell transplantation. The short half-life of holmium-166 allows treatment on an out-patient basis, and minimizes the time required between STR administration and transplantation.

The phase III study of STR is a multi-center, randomized, controlled study, designed to evaluate the safety and efficacy of STR in patients with primary refractory multiple myeloma. These are patients who have failed to achieve at least a partial response to conventional therapy and have been undergoing treatment for less than 18 months. The trial is expected to enroll approximately 240 evaluable patients, half on the experimental arm and half on the control arm. Patients on the experimental arm will receive STR at a dose of 750 mCi/m2 plus the chemotherapy drug melphalan at 200 mg/m2, followed by autologous stem cell transplantation. Patients on the control arm will receive melphalan only, followed by transplantation. Patients on both study arms will be evaluated for response to treatment six months after transplantation, using an immunofixation assay to detect myeloma protein in patient samples. Analysis of patient samples will be conducted at a central laboratory, and blinded results will be reviewed by an independent panel of experts. The study's primary endpoint is complete response, as determined by the complete disappearance of myeloma protein at six months post-transplant.

Read the detailed description

PRIMARY OBJECTIVE:

1.To determine the efficacy of STR (166Ho-DOTMP). The primary endpoint of this study is to compare the CR rate at 6 months post-transplant (in the absence of further therapy) in subjects with primary refractory multiple myeloma after treatment with 750 mCi/m2 166Ho-DOTMP plus 200 mg/m2 melphalan followed by autologous PBSCT to treatment with 200 mg/m2 melphalan alone followed by autologous PBSCT.

SECONDARY OBJECTIVES:

  1. To compare the treatment groups with respect to survival and progression-free survival.
  2. To compare treatment groups with respect to overall response rate (CR+VGPR+PR), best response within 6 months, and duration of response.
  3. To compare the safety profile of the treatment groups.
  4. To assess the biodistribution and estimated radiation absorbed dose to kidney in the first 20 subjects.

METHODOLOGY: Informed consent for participation in the study will be obtained, eligibility determined, and the subject registered. All subjects will receive a tracer dose of 30 mCi 166Ho-DOTMP to determine skeletal uptake and biodistribution of 166Ho-DOTMP therapy. Subjects may receive a therapy dose only if 1) the tracer dose shows no aberrant distribution, and 2) if the skeletal residence time is at least 5.8 hours (equivalent to F x Te > 4 hr). Subjects with adequate skeletal uptake and no aberrant distribution will be stratified based on the length of time since first induction therapy, and on response to prior therapy, and will undergo randomization to determine whether they will receive 166Ho DOTMP plus melphalan (Arm A) or melphalan alone (Arm B) as the conditioning regimen prior to autologous PBSCT.

Subjects randomized to Arm A will be treated with 750 mCi/m2 166Ho DOTMP intravenously 4 to 12 days after the tracer dose, with a total dosage not to exceed 1500 mCi. Five to 9 days after the 166Ho-DOTMP therapy dose, subjects will receive 200 mg/m2 melphalan IV.

Subjects randomized to Arm B will receive 200 mg/m2 melphalan at least 10 days and no more than 3 weeks after the tracer dose.

For all patients, cryopreserved hematopoietic stem cells will be infused 24 to 48 hours after melphalan. Subjects will be followed for safety assessments for 10 years or until death. Efficacy will be evaluated for up to 3 years in responding subjects, and disease relapse or progression and survival will be documented until Year 10.

An analysis to estimate radiation dose to the kidney will be performed in the first 20 patients. Additionally, after 6 months of follow-up have been completed on the first 20 subjects in each arm, an analysis of the CR rate will be conducted to rule out lack of efficacy of 166Ho-DOTMP. A planned interim analysis to determine the efficacy of the treatment will be performed when 60 patients on each arm have completed 6 months of follow-up. Enrollment on trial will continue while these interim analyses are performed.

NUMBER OF SUBJECTS: Two hundred and forty subjects who meet the eligibility criteria and receive study treatment will be followed on this protocol.

Being tested
STR(TM) (Skeletal Targeted Radiotherapy, Holmium-166-DOTMP)
Keywords
Multiple myeloma, Primary refractory multiple myeloma, STR, Skeletal Targeted Radiotherapy, Holmium-166, 166-Ho-DOTMP
Medical subject headings
Multiple Myeloma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • STR(TM) (Skeletal Targeted Radiotherapy, Holmium-166-DOTMP)Drug

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 May 2004 (estimated)
  2. Study startMar 2004

Why it stopped: For business reasons

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
240 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00083564
Sponsor's protocol ID
STR 0303
Status last verified
Mar 2009
First submitted
25 May 2004
Last updated
31 Mar 2009
Results posted
No

Publications

  • Giralt S, Bensinger W, Goodman M, Podoloff D, Eary J, Wendt R, Alexanian R, Weber D, Maloney D, Holmberg L, Rajandran J, Breitz H, Ghalie R, Champlin R. 166Ho-DOTMP plus melphalan followed by peripheral blood stem cell transplantation in patients with multiple myeloma: results of two phase 1/2 trials. Blood. 2003 Oct 1;102(7):2684-91. doi: 10.1182/blood-2002-10-3250. Epub 2003 May 1.

    PubMed 12730103

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing STR(TM) (Skeletal Targeted Radiotherapy, Holmium-166-DOTMP) in people with Multiple Myeloma, run by Poniard Pharmaceuticals at 21 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 27 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 31 Mar 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 21 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: For business reasons). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00083564, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Mar 2009.

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Clinical Trial NCT00083564 | AzTrials