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Recurrent Plasma Cell MyelomaPhase 2NCT03457142

Abatacept, Ixazomib Citrate, and Dexamethasone in Treating Patients With Multiple Myeloma Resistant to Chemotherapy

A Phase 2 study testing Abatacept, Dexamethasone and Ixazomib Citrate in people with Recurrent Plasma Cell Myeloma and Refractory Plasma Cell Myeloma, run by Roswell Park Cancer Institute at 3 sites in United States.

Terminated

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

Official record
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Trial summary

This phase II trial studies how well abatacept, ixazomib citrate, and dexamethasone work in treating patients with multiple myeloma that is resistant to chemotherapy. Abatacept may block certain proteins that are present on multiple myeloma cells that have been shown to protect against chemotherapy. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Abatacept, Dexamethasone and Ixazomib Citrate
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
3 sitesUnited States
Study dates
11 Sep 2018to 6 Nov 2024
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with multiple myeloma who have relapsed (or who are primary refractory) following treatment with a proteasome inhibitor-containing regimen (excluding ixazomib) and who have not been treated with a second proteasome inhibitor (ixazomib, bortezomib, carfilzomib or other proteasome inhibitor).
  • Have an Eastern Cooperative Oncology Group (ECOG) performance status of =< 2 at study entry
  • Must be free of systemic infection:
  • Subjects with active infections (whether or not they require antibiotic therapy) may be eligible after complete resolution of the infection
  • Subjects on antibiotic therapy must be off antibiotics for at least 7 days before beginning treatment
  • Absolute neutrophil count >= 750/mm^3
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  • Platelet count >= 25,000/mm^3
  • Creatinine clearance >= 30 mL/min
  • Total bilirubin =< 3 x upper limit of normal (ULN)
  • Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT]) and alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 3 x ULN
  • Patient's multiple myeloma cells are positive for CD28 or CD86 expression by flow cytometry or immunohistochemistry (in any proportion) CD28 or CD86 positivity can have been determined on previous bone marrow aspirates or biopsies
  • Disease free of prior malignancies for > 2 years with exception of currently treated basal cell, squamous cell carcinoma of the skin, or carcinoma ?in situ? of the cervix or breast
  • Participants of child-bearing potential must agree to use adequate contraceptive methods (e.g., hormonal or barrier method of birth control; abstinence) prior to study entry; should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately
  • Participant must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure

Who cannot join

  • Prior treatment with ixazomib
  • Inability to take ixazomib or abatacept
  • Life expectancy less than 4 months
  • Patients with a known diagnosis of plasma cell leukemia
  • Known active tuberculosis or fungal infection
  • Known seropositive for or active viral infection with, human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV)
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  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
  • Any condition, including the presence of laboratory abnormalities, which places the subject at unacceptable risk if he/she were to participate in the study or, which confounds the ability to interpret data from the study
  • Pregnant or nursing female participants
  • Unwilling or unable to follow protocol requirements
  • Any condition which in the investigator?s opinion deems the participant an unsuitable candidate to receive study drug
  • Received an investigational agent within 30 days prior to enrollment

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Roswell Park Cancer Institute

    Buffalo, New York, 14263

  • St. Francis Hospital

    East Hills, New York, 11548

  • Good Samaritan Hospital

    West Islip, New York, 11795

Other trials in United States

About this study

Official title: Phase II Study of Targeting CD28 in Multiple Myeloma With Abatacept (CTLA4-Ig) to Overcome Resistance to Chemotherapy

This phase II trial studies how well abatacept, ixazomib citrate, and dexamethasone work in treating patients with multiple myeloma that is resistant to chemotherapy. Abatacept may block certain proteins that are present on multiple myeloma cells that have been shown to protect against chemotherapy. Drugs used in chemotherapy, such as ixazomib citrate and dexamethasone, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving abatacept, ixazomib citrate, and dexamethasone may work better at treating patients with multiple myeloma resistant to chemotherapy.

Read the detailed description

PRIMARY OBJECTIVES:

  1. To determine the therapeutic efficacy (as measured by response rate) of abatacept + ixazomib citrate (ixazomib) + dexamethasone in multiple myeloma patients who have relapsed (or who are primary refractory) following treatment with their first proteasome inhibitor-containing regimen (excluding ixazomib), compared to historical controls of ixazomib + dexamethasone.

SECONDARY OBJECTIVES:

  1. To assess the toxicity profile of abatacept + ixazomib + dexamethasone in multiple myeloma patients who have relapsed (or who are primary refractory) following treatment with their first proteasome inhibitor-containing regimen, compared to historical controls of ixazomib + dexamethasone.

II. To assess progression-free and overall survival profile of abatacept + ixazomib + dexamethasone in multiple myeloma patients who have relapsed (or who are primary refractory) following treatment with their proteasome inhibitor-containing regimen, compared to historical controls of ixazomib + dexamethasone.

TERTIARY OBJECTIVES:

  1. Assess whether myeloma expression of CD28, CD86, serum kynurenine and/or IL-6 are correlated with specific clinical outcomes.

OUTLINE:

Patients receive abatacept intravenously (IV) over 30 minutes on day 1 of course 1, then subcutaneously (SC) on days 2, 8, 15, and 22 of course 1, and then on days 1, 8, 15, and 22 of subsequent courses. Patients also receive ixazomib citrate orally (PO) once daily (QD) on days 1, 8, and 15 and dexamethasone on days 1, 8, 15, and 22. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 30 days and then every 3 months thereafter.

Being tested
Abatacept, Dexamethasone, Ixazomib Citrate, Laboratory Biomarker Analysis
Medical subject headings
Multiple Myeloma

What participants receive

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

  • AbataceptBiological

    Also called BMS-188667, CTL A4-Ig B7 Inhibitor, CTLA4-Ig, cytotoxic T lymphocyte-associated antigen-4

    Given IV and SC

  • DexamethasoneDrug

    Also called Aacidexam, Adexone, Aknichthol Dexa, Alba-Dex

    Given PO

  • Ixazomib CitrateDrug

    Also called MLN-9708, MLN9708, Ninlaro

    Given PO

  • Laboratory Biomarker AnalysisOther

    Correlative studies

Study groups in NCT03457142
Study groupRoleWhat they receive
Treatment (abatacept, ixazomib citrate, dexamethasone)ExperimentalPatients receive abatacept IV over 30 minutes on day 1 of course 1, then SC on days 2, 8, 15, and 22 of course 1, and then on days 1, 8, 15, and 22 of subsequent courses. Patients also receive ixazomib citrate PO QD on days 1, 8, and 15 and dexamethasone on days 1, 8, 15, and 22. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Receives: Biological: Abatacept; Drug: Dexamethasone; Drug: Ixazomib Citrate; Other: Laboratory Biomarker Analysis

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Response Rate of Abatacept + Ixazomib Citrate + Dexamethasone in Multiple Myeloma Patients

    Will be compared to historical controls of ixazomib citrate + dexamethasone. Responses to treatment will be measured by serum immunoglobulins, serum free kappa and lambda light chains, serum protein electrophoresis/immunofixation electrophoresis, and 24-hour urine protein electrophoresis/immunofixation. International uniform response criteria will be used. The anti-myeloma activity will be evaluated on an exploratory basis and will be summarized using descriptive statistics or graphical methods. No formal comparison will be carried forth.

    Measured: 1 cycle of 28 days

Secondary outcomes (3)
  1. Incidence of Adverse Events Assessed Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0

    The adverse events and drug related toxicities will be summarized by grade using frequencies and relative frequencies. The rate of grade 3 or higher toxicities that are probably or definitely related to abatacept will be reported with 90% confidence intervals obtained using Jeffrey?s prior method.

    Measured: Up to 30 days after last dose

  2. Overall Survival

    Defined as the time from treatment initiation until death or last follow-up. Will be summarized using standard Kaplan-Meier methods; where estimates of median survival and survival rates will be obtained with 90% confidence intervals.

    Measured: From the date of the first study treatment until initiation of a new therapy, death, or end of follow-up (up to 5 years); whichever occurs first.

  3. Progression-free Survival

    Defined as the time from treatment initiation until disease progression, death, or last follow-up. Will be summarized using standard Kaplan-Meier methods; where estimates of median survival and survival rates will be obtained with 90% confidence intervals.

    Measured: From the date of the first study treatment to the date of first observed disease progression or death due to any cause, assessed up to 5 years

Timeline

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

  1. First posted7 Mar 2018
  2. Study start11 Sep 2018
  3. Primary completion21 Nov 2022
  4. Study completion6 Nov 2024

Why it stopped: funding ended

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03457142
Sponsor's protocol ID
I 47217
Other IDs
NCI-2017-02430, I 47217
Status last verified
Feb 2025
First submitted
27 Feb 2018
Last updated
4 Mar 2025
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Abatacept, Dexamethasone and Ixazomib Citrate in people with Recurrent Plasma Cell Myeloma and Refractory Plasma Cell Myeloma, run by Roswell Park Cancer Institute at 3 sites in United States.

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 14 inclusion and 12 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 4 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 May 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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.

What does the primary outcome measure?

Response Rate of Abatacept + Ixazomib Citrate + Dexamethasone in Multiple Myeloma Patients (time frame: 1 cycle of 28 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 4 Mar 2025.

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