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A Phase 1 With Extension Cohort, Single Arm, Single Center, Open Label Trial of Belantamab Mafodotin for the Treatment of High-Risk Smoldering Multiple Myeloma

Primary Purpose

Myeloma

Status
Recruiting
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Belantamab mafodotin
Sponsored by
M.D. Anderson Cancer Center
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Myeloma

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

Patients must be diagnosed with high-risk smoldering multiple myeloma (SMM) as confirmed by the following (all three must be present):

  1. Bone marrow plasmacytosis with ≥ 10% plasma cells in bone marrow biopsy
  2. Immunoparesis (reduction in at least one uninvolved immunoglobulin in blood)
  3. ≥ 95% aberrant plasma cells of all plasma cells by flow cytometry of the bone marrow aspirate

    • Creatinine clearance (CrCl) ≥ 30 ml/min. CrCl will be calculated using the Modification of Diet in Renal Disease (MDRD) equation.
    • Age ≥ 18 years.
    • Eastern Cooperative Oncology Group (ECOG) performance status 0-2
    • Absolute neutrophil count (ANC) ≥ 1.0 x 109 /L, hemoglobin more or equal than 2 grams below the institutional level of normal and platelet count ≥ 90 x 109/L. Platelet and blood transfusions are allowed on protocol. Growth factors, including granulocyte colony stimulating factors and erythropoietin are allowed.
    • Adequate hepatic function, with bilirubin ≤ 1.5 x the ULN, and AST and ALT ≤ 2.5 x ULN.
    • Females of childbearing potential are eligible to participate if they agree to avoid pregnancy by using an adequate method of contraception that is highly effective with a failure rate of <1% per year (2 barrier method or 1 barrier method with a spermicide or intrauterine device during and for 4 months after the last dose of belantamab mafodotin). Adequate methods of contraception are provided as examples. Other acceptable and effective methods of birth control are also permitted (eg, abstinence). Women of child bearing potential must have a negative serum pregnancy test result within 72 hours prior to the first administration of belantamab mafodotin and at the end of treatment visit. A negative urine pregnancy test is required prior to each subsequent belantamab mafodotin dose administration
    • Females of childbearing potential are eligible to participate if they agree to notdonate eggs (ova, oocytes) for the purpose of reproduction during the study and for 4 months after the last dose of belantamab mafodotin.
    • Male participants are eligible to participate if they agree to the following from the time of first dose of belantamab mafodotin until 6 months after the last dose of study treatment to allow for clearance of any altered sperm:

      • be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree to remain abstinent,
      • OR must agree to use contraception/barrier as follows:
      • agree to use a male condom, even if they have undergone a successful vasectomy
      • and female partner of childbearing potential to use an additional highly effective contraceptive method with a failure rate of <1% per year when having sexual intercourse.
    • Men must agree to not donate sperm while on the study and for at least 6 months after the last dose of belantamab mafodotin.
    • Subjects must be able to give informed consent.
    • Subjects must be either newly diagnosed smoldering myeloma or not have received prior or concurrent treatment for smoldering multiple myeloma with chemotherapy agents approved for the treatment of smoldering multiple myeloma. Patients who have been treated previously on a clinical trial or with non-approved agents for their smoldering myeloma can be included.
    • Exclusion Criteria:
    • Evidence of myeloma defining events or biomarkers of malignancy due to underlying plasma cell proliferative disorder meeting at least one of the following:

      • Hypercalcemia: serum calcium >0.25 mmol/L (>1 mg/dL) higher than the upper limit of normal or > 2.75 mmol/L (> 11 mg/dL)
      • Renal Insufficiency: creatinine clearance < 40 ml/min or serum creatinine > 2 mg/dL
      • Anemia: hemoglobin value more than 2 g/dL < normal reference
      • Bone lesions: one or more osteolytic lesions on skeletal radiography, computerized tomography (CT) or 2-deoxy-2[F-18] fluoro-D-glucose positron emission tomography CT (PET-CT).
      • Clonal bone marrow plasma cell percentage ≥ 60%
      • Involved: uninvolved serum free light chain ratio ≥100 measured by Freelite assay (The Binding Site Group, Birmingham, UK)
      • >1 focal lesions on MRI studies (each focal lesion must be 5 mm or more in size)
    • Bisphosphonates are permitted, including pamidronate, zoledronic acid, alendronate, ibandronate, risedronate.
    • Treatment with corticosteroids is not permitted, unless the patient is on a stable chronic dose of inhaled steroids to treat respiratory diseases or on stable chronic steroid replacement therapy for endocrinology disorders. Steroids may be used treat infusion related reactions. Inhaled, intranasal, and topical ophthalmic steroids are not prohibited.
    • Radiotherapy is not permitted.
    • Prior or concurrent treatment for smoldering multiple myeloma with chemotherapy agents approved for the treatment of smoldering multiple myeloma
    • Plasma cell leukemia
    • Pregnant or lactating females. It is not known whether belantamab mafodotin is excreted in human milk. The effect of belantamab mafodotin of newborns/infants is unknown. Women should be advised to discontinue breast-feeding prior to initiating treatment with belantamab mafodotin and for at least 70 days after the last dose. These potential risks may also apply to other agents used in this study.
    • Active hepatitis B or C infection
    • Known HIV infection
    • Known immediate or delayed hypersensitivity reaction or idiosyncratic reaction to drugs chemically related to belantamab mafodotin
    • Concurrent treatment with other anti-cancer therapy is not permitted
    • Has significant cardiovascular disease with:

      • NYHA Class III or IV symptoms,
      • uncontrolled hypertension
      • hypertrophic cardiomyopathy restrictive cardiomyopathy, or myocardial infarction, acute coronary syndromes (including unstable angina), coronary angioplasty, or stenting or bypass grafting within 3 months prior to enrollment
      • evidence of current clinically significant uncontrolled arrhythmias, including clinically significant ECG abnormalities such as 2nd degree (Mobitz Type II) or 3rd degree atrioventricular (AV) block as determined by history and physical examination.
    • Uncontrolled intercurrent illness including but not limited to active infection requiring treatment or psychiatric illness/social situations that would compromise compliance with study requirements
    • Contraindication to any concomitant medication, including pre-medications or hydration given prior to therapy
    • Major surgery within 1 month prior to enrollment
    • Previous or concurrent malignancies other than disease under study, unless the second malignancy has been medically stable for at least 2 years and, in the opinion of the principal investigators, will not affect the evaluation of the effects of clinical trial treatments on the currently targeted malignancy. Participants with curatively treated non-melanoma skin cancer may be enrolled without a 2-year restriction.
    • Presence of active renal condition (infection, requirement for dialysis, or any other condition that could affect participant's safety). Participants with isolated proteinuria resulting are eligible, provided they fulfil renal criteria provided above.
    • Any evidence of active mucosal or internal bleeding
    • Received prior treatment with a monoclonal antibody within 30 days of receiving the first dose of belantamab mafodotin
    • Cirrhosis or current unstable liver or biliary disease defined by the presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal or gastric varices, persistent jaundice, or cirrhosis. Note: Stable non-cirrhotic chronic liver disease (including Gilbert's syndrome or asymptomatic gallstones) or hepatobiliary involvement of malignancy is acceptable if otherwise meets entry criteria
    • Current corneal epithelial disease except mild changes in corneal epithelium
    • Use of contact lenses while participating in this study, except at the direction of the study MD/OD
    • Severe dry eye patients and monocular patients are excluded

Sites / Locations

  • M D Anderson Cancer CenterRecruiting

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Belantamab mafodotin

Arm Description

belantamab mafodotin by vein over 30-60 minutes on Day 1 of each 56-day cycle for the first 6 cycles.

Outcomes

Primary Outcome Measures

To establish the recommended Phase 2 dose (RP2D) or maximum tolerated dose of single agent belantamab mafodotin in high risk SMM.

Secondary Outcome Measures

Full Information

First Posted
September 7, 2021
Last Updated
October 12, 2023
Sponsor
M.D. Anderson Cancer Center
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1. Study Identification

Unique Protocol Identification Number
NCT05055063
Brief Title
A Phase 1 With Extension Cohort, Single Arm, Single Center, Open Label Trial of Belantamab Mafodotin for the Treatment of High-Risk Smoldering Multiple Myeloma
Official Title
A Phase 1 With Extension Cohort, Single Arm, Single Center, Open Label Trial of Belantamab Mafodotin for the Treatment of High-Risk Smoldering Multiple Myeloma (BELLA)
Study Type
Interventional

2. Study Status

Record Verification Date
October 2023
Overall Recruitment Status
Recruiting
Study Start Date
May 18, 2022 (Actual)
Primary Completion Date
February 2, 2027 (Anticipated)
Study Completion Date
February 2, 2027 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
M.D. Anderson Cancer Center

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a single-center, single arm, phase I study designed to determine the safety and find the recommended Phase 2 dose (RP2D) or maximum dose level (MTD) of Belantamab Mafodotin in patients with high-risk smoldering multiple myeloma. The study will have a dose-finding part and a dose-expansion part. The maximum number of enrolled patients will be 30 with 18 patients for the dose-finding part and 12 patients for the dose-expansion part. Once we determine the MTD or RP2D in the dose-finding part, we will enroll and treat 12 additional patients at the MTD or RP2D in the expansion part. Efficacy will be assessed through the overall response rate (ORR) at the end of the study. With the limited number of patients for the dose-expansion part, we will not have formal futility monitoring rule.
Detailed Description
Primary Objective: To obtain the recommended Phase 2 dose (RP2D) or maximum tolerated dose of single agent belantamab mafodotin in high risk SMM. Secondary Objectives: Overall response rate per International Myeloma Working Group (IMWG) criteria. Progression free survival at 2 years, overall survival, duration of response, safety and clinical benefit rate. Exploratory Studies: Evaluate correlative endpoints including immune, cellular and molecular profiling, minimal residual disease, BCMA staining of bone marrow, pharmacokinetics, pharmacodynamics and mechanisms of resistance to belantamab mafodotin.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Myeloma

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
30 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Belantamab mafodotin
Arm Type
Experimental
Arm Description
belantamab mafodotin by vein over 30-60 minutes on Day 1 of each 56-day cycle for the first 6 cycles.
Intervention Type
Drug
Intervention Name(s)
Belantamab mafodotin
Intervention Description
by vein over 30-60 minutes on Day 1 of each 56-day cycle for the first 6 cycles.
Primary Outcome Measure Information:
Title
To establish the recommended Phase 2 dose (RP2D) or maximum tolerated dose of single agent belantamab mafodotin in high risk SMM.
Time Frame
through study completion, an average of 1 year

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Patients must be diagnosed with high-risk smoldering multiple myeloma (SMM) as confirmed by the following (all three must be present): Bone marrow plasmacytosis with ≥ 10% plasma cells in bone marrow biopsy Immunoparesis (reduction in at least one uninvolved immunoglobulin in blood) ≥ 95% aberrant plasma cells of all plasma cells by flow cytometry of the bone marrow aspirate Creatinine clearance (CrCl) ≥ 30 ml/min. CrCl will be calculated using the Modification of Diet in Renal Disease (MDRD) equation. Age ≥ 18 years. Eastern Cooperative Oncology Group (ECOG) performance status 0-2 Absolute neutrophil count (ANC) ≥ 1.0 x 109 /L, hemoglobin more or equal than 2 grams below the institutional level of normal and platelet count ≥ 90 x 109/L. Platelet and blood transfusions are allowed on protocol. Growth factors, including granulocyte colony stimulating factors and erythropoietin are allowed. Adequate hepatic function, with bilirubin ≤ 1.5 x the ULN, and AST and ALT ≤ 2.5 x ULN. Females of childbearing potential are eligible to participate if they agree to avoid pregnancy by using an adequate method of contraception that is highly effective with a failure rate of <1% per year (2 barrier method or 1 barrier method with a spermicide or intrauterine device during and for 4 months after the last dose of belantamab mafodotin). Adequate methods of contraception are provided as examples. Other acceptable and effective methods of birth control are also permitted (eg, abstinence). Women of child bearing potential must have a negative serum pregnancy test result within 72 hours prior to the first administration of belantamab mafodotin and at the end of treatment visit. A negative urine pregnancy test is required prior to each subsequent belantamab mafodotin dose administration Females of childbearing potential are eligible to participate if they agree to notdonate eggs (ova, oocytes) for the purpose of reproduction during the study and for 4 months after the last dose of belantamab mafodotin. Male participants are eligible to participate if they agree to the following from the time of first dose of belantamab mafodotin until 6 months after the last dose of study treatment to allow for clearance of any altered sperm: be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree to remain abstinent, OR must agree to use contraception/barrier as follows: agree to use a male condom, even if they have undergone a successful vasectomy and female partner of childbearing potential to use an additional highly effective contraceptive method with a failure rate of <1% per year when having sexual intercourse. Men must agree to not donate sperm while on the study and for at least 6 months after the last dose of belantamab mafodotin. Subjects must be able to give informed consent. Subjects must be either newly diagnosed smoldering myeloma or not have received prior or concurrent treatment for smoldering multiple myeloma with chemotherapy agents approved for the treatment of smoldering multiple myeloma. Patients who have been treated previously on a clinical trial or with non-approved agents for their smoldering myeloma can be included. Exclusion Criteria: Evidence of myeloma defining events or biomarkers of malignancy due to underlying plasma cell proliferative disorder meeting at least one of the following: Hypercalcemia: serum calcium >0.25 mmol/L (>1 mg/dL) higher than the upper limit of normal or > 2.75 mmol/L (> 11 mg/dL) Renal Insufficiency: creatinine clearance < 40 ml/min or serum creatinine > 2 mg/dL Anemia: hemoglobin value more than 2 g/dL < normal reference Bone lesions: one or more osteolytic lesions on skeletal radiography, computerized tomography (CT) or 2-deoxy-2[F-18] fluoro-D-glucose positron emission tomography CT (PET-CT). Clonal bone marrow plasma cell percentage ≥ 60% Involved: uninvolved serum free light chain ratio ≥100 measured by Freelite assay (The Binding Site Group, Birmingham, UK) >1 focal lesions on MRI studies (each focal lesion must be 5 mm or more in size) Bisphosphonates are permitted, including pamidronate, zoledronic acid, alendronate, ibandronate, risedronate. Treatment with corticosteroids is not permitted, unless the patient is on a stable chronic dose of inhaled steroids to treat respiratory diseases or on stable chronic steroid replacement therapy for endocrinology disorders. Steroids may be used treat infusion related reactions. Inhaled, intranasal, and topical ophthalmic steroids are not prohibited. Radiotherapy is not permitted. Prior or concurrent treatment for smoldering multiple myeloma with chemotherapy agents approved for the treatment of smoldering multiple myeloma Plasma cell leukemia Pregnant or lactating females. It is not known whether belantamab mafodotin is excreted in human milk. The effect of belantamab mafodotin of newborns/infants is unknown. Women should be advised to discontinue breast-feeding prior to initiating treatment with belantamab mafodotin and for at least 70 days after the last dose. These potential risks may also apply to other agents used in this study. Active hepatitis B or C infection Known HIV infection Known immediate or delayed hypersensitivity reaction or idiosyncratic reaction to drugs chemically related to belantamab mafodotin Concurrent treatment with other anti-cancer therapy is not permitted Has significant cardiovascular disease with: NYHA Class III or IV symptoms, uncontrolled hypertension hypertrophic cardiomyopathy restrictive cardiomyopathy, or myocardial infarction, acute coronary syndromes (including unstable angina), coronary angioplasty, or stenting or bypass grafting within 3 months prior to enrollment evidence of current clinically significant uncontrolled arrhythmias, including clinically significant ECG abnormalities such as 2nd degree (Mobitz Type II) or 3rd degree atrioventricular (AV) block as determined by history and physical examination. Uncontrolled intercurrent illness including but not limited to active infection requiring treatment or psychiatric illness/social situations that would compromise compliance with study requirements Contraindication to any concomitant medication, including pre-medications or hydration given prior to therapy Major surgery within 1 month prior to enrollment Previous or concurrent malignancies other than disease under study, unless the second malignancy has been medically stable for at least 2 years and, in the opinion of the principal investigators, will not affect the evaluation of the effects of clinical trial treatments on the currently targeted malignancy. Participants with curatively treated non-melanoma skin cancer may be enrolled without a 2-year restriction. Presence of active renal condition (infection, requirement for dialysis, or any other condition that could affect participant's safety). Participants with isolated proteinuria resulting are eligible, provided they fulfil renal criteria provided above. Any evidence of active mucosal or internal bleeding Received prior treatment with a monoclonal antibody within 30 days of receiving the first dose of belantamab mafodotin Cirrhosis or current unstable liver or biliary disease defined by the presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal or gastric varices, persistent jaundice, or cirrhosis. Note: Stable non-cirrhotic chronic liver disease (including Gilbert's syndrome or asymptomatic gallstones) or hepatobiliary involvement of malignancy is acceptable if otherwise meets entry criteria Current corneal epithelial disease except mild changes in corneal epithelium Use of contact lenses while participating in this study, except at the direction of the study MD/OD Severe dry eye patients and monocular patients are excluded
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Lisa Aoula
Phone
713-563-4898
Email
lladkins@mdanderson.org
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Elisabet Manasanch
Organizational Affiliation
M.D. Anderson Cancer Center
Official's Role
Principal Investigator
Facility Information:
Facility Name
M D Anderson Cancer Center
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Lisa Aoula
Phone
713-563-4898
Email
lladkins@mdanderson.org
First Name & Middle Initial & Last Name & Degree
Elisabet Manasanch, MD

12. IPD Sharing Statement

Links:
URL
http://www.mdanderson.org
Description
M D Anderson Cancer Center

Learn more about this trial

A Phase 1 With Extension Cohort, Single Arm, Single Center, Open Label Trial of Belantamab Mafodotin for the Treatment of High-Risk Smoldering Multiple Myeloma

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