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Enoblituzumab (MGA271) in Children With B7-H3-expressing Solid Tumors

Primary Purpose

Neuroblastoma, Rhabdomyosarcoma, Osteosarcoma

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Enoblituzumab
Sponsored by
MacroGenics
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Neuroblastoma focused on measuring Neuroblastoma, Rhabdomyosarcoma, Osteosarcoma, Ewing Sarcoma, Wilms Tumor, Desmoplastic Small Round Cell Tumor, pediatric

Eligibility Criteria

1 Year - 35 Years (Child, Adult)All SexesDoes not accept healthy volunteers

General Inclusion Criteria:

  • Age at treatment 1 to 35 years.
  • Relapsed or refractory malignant solid tumors of any histology for which no standard curative therapy is available (escalation phase).
  • Histologically proven: neuroblastoma, rhabdomyosarcoma, osteosarcoma, Ewing's sarcoma/ primitive neuroectodermal tumor, Wilms tumor, desmoplastic small round cell tumor or malignant solid tumors of any other histology that test positive for B7-H3 .
  • Must have malignant solid tumors that demonstrate B7-H3 expression at 2+ or greater levels on the membranous surface of at least 10% of tumor cells or ≥ 25% of tumor vasculature by IHC.
  • With the exception of patients with non-measurable neuroblastoma patients must have measurable disease as per RECIST 1.1
  • Karnofsky (patients ≥ 16 years)/Lansky (patients < 16 years) index ≥ 70.
  • Acceptable laboratory parameters and adequate organ reserve.

Exclusion Criteria:

  • Patients are to be excluded from the study if they have any of the following:
  • Patients with a history of symptomatic central nervous system (CNS) unless they have been treated and are asymptomatic.
  • Patients with any history of known or suspected autoimmune disease with the specific exceptions of vitiligo, resolved childhood atopic dermatitis, psoriasis not requiring systemic treatment within the past 2 years, and patients with a history of Grave's disease that are now euthyroid clinically and by laboratory testing.
  • History of prior allogeneic bone marrow/stem-cell or solid organ transplantation.
  • Patients receiving autologous stem cell transplantation must wait 8 weeks before initiation of study drug administration.
  • Treatment with systemic chemotherapy or investigational therapy within 4 weeks of first study drug administration; other agents (e.g., biologics) within 2 weeks; radiation within 2 weeks; patients receiving 131I-MIBG therapy must wait 6 weeks prior to the initiation of study drug administration; corticosteroids (≥ 0.2 mg/kg/day prednisone or equivalent) or other immune suppressive drugs within the 2 weeks prior to the initiation of study drug administration.
  • History of clinically significant cardiovascular disease
  • Active viral, bacterial, or systemic fungal infection requiring parenteral treatment within 7 days prior to the initiation of study drug.
  • Known positive testing for human immunodeficiency virus or history of acquired immune deficiency syndrome.
  • Known history of hepatitis B or hepatitis C infection or known positive test for hepatitis B surface antigen, hepatitis B core antigen, or hepatitis C polymerase chain reaction.
  • Second primary invasive malignancy that has not been in remission for greater than 2 years.
  • History of severe trauma or major surgery within 4 weeks prior to the initiation of study drug administration.
  • Known hypersensitivity to recombinant proteins, polysorbate 80 or any excipient contained in the drug formulation for enoblituzumab
  • Patients in Canada may not have a history or evidence of latent or active tuberculosis infection.

Sites / Locations

  • Lucile Packard Children's Hospital, Stanford
  • National Cancer Institute, Center for Cancer Research
  • Children's Hospital of Philadelphia
  • Texas Children's Hospital
  • Seattle Children's
  • University of Wisconsin, American Family Children's Hospital

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Dose Escalation & Cohort Expansion

Arm Description

enoblituzumab administered IV weekly

Outcomes

Primary Outcome Measures

Safety and tolerability of enoblituzumab.
Adverse events, SAEs, incidence of treatment-emergent AE

Secondary Outcome Measures

Peak plasma concentration
PK of enoblituzumab
Number of participants that develop anti-drug antibodies
Proportion of patients who develop anti-MGA271 antibodies, immunogenicity
Antitumor activity of enoblituzumab
Anti-tumor activity of enoblituzumab using conventional RECIST 1.1 and immune related RECIST criteria

Full Information

First Posted
November 30, 2016
Last Updated
February 4, 2022
Sponsor
MacroGenics
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1. Study Identification

Unique Protocol Identification Number
NCT02982941
Brief Title
Enoblituzumab (MGA271) in Children With B7-H3-expressing Solid Tumors
Official Title
A Phase 1, Open-label, Dose Escalation Study of MGA271 in Pediatric Patients With B7-H3-Expressing Relapsed or Refractory Solid Tumors
Study Type
Interventional

2. Study Status

Record Verification Date
February 2022
Overall Recruitment Status
Completed
Study Start Date
December 2016 (undefined)
Primary Completion Date
May 22, 2019 (Actual)
Study Completion Date
May 22, 2019 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
MacroGenics

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
This study is a Phase 1, open-label, dose escalation and cohort expansion trial designed to characterize the safety, tolerability, PK, PD, immunogenicity and preliminary antitumor activity of enoblituzumab administered IV on a weekly schedule for up to 96 doses (approximately 2 years) in children and young adults with B7-H3-expressing relapsed or refractory malignant solid tumors.
Detailed Description
This study is a Phase 1, open-label, dose escalation and cohort expansion trial designed to characterize the safety, tolerability, PK, PD, immunogenicity and preliminary antitumor activity of enoblituzumab administered IV on a weekly schedule for up to 96 doses (approximately 2 years) in children and young adults with B7-H3-expressing relapsed or refractory malignant solid tumors. The study consists of a Dose Escalation Phase to determine the MTD (or MAD) of enoblituzumab followed by a Cohort Expansion Phase to further define the safety and initial antitumor activity of enoblituzumab. In the cohort expansion phase, 5 cohorts of 10 patients each will be enrolled to further evaluate the safety and potential efficacy of enoblituzumab administered at the MTD/MAD in patients with:1) neuroblastoma - measurable disease, 2) neuroblastoma - non-measurable disease, 3) rhabdomyosarcoma, 4) osteosarcoma, and 5) Ewing's sarcoma, Wilms' tumor, desmoplastic small round cell tumors, or malignant solid tumors of any other histology that test positive for B7-H3. All tumor evaluations will be carried out by both Response Evaluation Criteria in Solid Tumors (RECIST) and immune-related response criteria (irRC). Disease assessment in patients with neuroblastoma will use neuroblastoma overall response criteria.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Neuroblastoma, Rhabdomyosarcoma, Osteosarcoma, Ewing Sarcoma, Wilms Tumor, Desmoplastic Small Round Cell Tumor
Keywords
Neuroblastoma, Rhabdomyosarcoma, Osteosarcoma, Ewing Sarcoma, Wilms Tumor, Desmoplastic Small Round Cell Tumor, pediatric

7. Study Design

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

8. Arms, Groups, and Interventions

Arm Title
Dose Escalation & Cohort Expansion
Arm Type
Experimental
Arm Description
enoblituzumab administered IV weekly
Intervention Type
Drug
Intervention Name(s)
Enoblituzumab
Other Intervention Name(s)
MGA271
Intervention Description
enoblituzumab administered IV weekly for up to 96 weeks
Primary Outcome Measure Information:
Title
Safety and tolerability of enoblituzumab.
Description
Adverse events, SAEs, incidence of treatment-emergent AE
Time Frame
Time of first dose through end of treatment (up to 2 years)
Secondary Outcome Measure Information:
Title
Peak plasma concentration
Description
PK of enoblituzumab
Time Frame
Time of first dose through end of treatment (up to 96 weeks)
Title
Number of participants that develop anti-drug antibodies
Description
Proportion of patients who develop anti-MGA271 antibodies, immunogenicity
Time Frame
Time of first dose through end of treatment (up to 96 weeks)
Title
Antitumor activity of enoblituzumab
Description
Anti-tumor activity of enoblituzumab using conventional RECIST 1.1 and immune related RECIST criteria
Time Frame
Time of first dose through end of treatment (up to 96 weeks)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
1 Year
Maximum Age & Unit of Time
35 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
General Inclusion Criteria: Age at treatment 1 to 35 years. Relapsed or refractory malignant solid tumors of any histology for which no standard curative therapy is available (escalation phase). Histologically proven: neuroblastoma, rhabdomyosarcoma, osteosarcoma, Ewing's sarcoma/ primitive neuroectodermal tumor, Wilms tumor, desmoplastic small round cell tumor or malignant solid tumors of any other histology that test positive for B7-H3 . Must have malignant solid tumors that demonstrate B7-H3 expression at 2+ or greater levels on the membranous surface of at least 10% of tumor cells or ≥ 25% of tumor vasculature by IHC. With the exception of patients with non-measurable neuroblastoma patients must have measurable disease as per RECIST 1.1 Karnofsky (patients ≥ 16 years)/Lansky (patients < 16 years) index ≥ 70. Acceptable laboratory parameters and adequate organ reserve. Exclusion Criteria: Patients are to be excluded from the study if they have any of the following: Patients with a history of symptomatic central nervous system (CNS) unless they have been treated and are asymptomatic. Patients with any history of known or suspected autoimmune disease with the specific exceptions of vitiligo, resolved childhood atopic dermatitis, psoriasis not requiring systemic treatment within the past 2 years, and patients with a history of Grave's disease that are now euthyroid clinically and by laboratory testing. History of prior allogeneic bone marrow/stem-cell or solid organ transplantation. Patients receiving autologous stem cell transplantation must wait 8 weeks before initiation of study drug administration. Treatment with systemic chemotherapy or investigational therapy within 4 weeks of first study drug administration; other agents (e.g., biologics) within 2 weeks; radiation within 2 weeks; patients receiving 131I-MIBG therapy must wait 6 weeks prior to the initiation of study drug administration; corticosteroids (≥ 0.2 mg/kg/day prednisone or equivalent) or other immune suppressive drugs within the 2 weeks prior to the initiation of study drug administration. History of clinically significant cardiovascular disease Active viral, bacterial, or systemic fungal infection requiring parenteral treatment within 7 days prior to the initiation of study drug. Known positive testing for human immunodeficiency virus or history of acquired immune deficiency syndrome. Known history of hepatitis B or hepatitis C infection or known positive test for hepatitis B surface antigen, hepatitis B core antigen, or hepatitis C polymerase chain reaction. Second primary invasive malignancy that has not been in remission for greater than 2 years. History of severe trauma or major surgery within 4 weeks prior to the initiation of study drug administration. Known hypersensitivity to recombinant proteins, polysorbate 80 or any excipient contained in the drug formulation for enoblituzumab Patients in Canada may not have a history or evidence of latent or active tuberculosis infection.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Chief Medical Officer
Organizational Affiliation
MacroGenics
Official's Role
Study Director
Facility Information:
Facility Name
Lucile Packard Children's Hospital, Stanford
City
Palo Alto
State/Province
California
ZIP/Postal Code
94304
Country
United States
Facility Name
National Cancer Institute, Center for Cancer Research
City
Bethesda
State/Province
Maryland
ZIP/Postal Code
20892
Country
United States
Facility Name
Children's Hospital of Philadelphia
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19104
Country
United States
Facility Name
Texas Children's Hospital
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
Facility Name
Seattle Children's
City
Seattle
State/Province
Washington
ZIP/Postal Code
98105
Country
United States
Facility Name
University of Wisconsin, American Family Children's Hospital
City
Madison
State/Province
Wisconsin
ZIP/Postal Code
53792
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No

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Enoblituzumab (MGA271) in Children With B7-H3-expressing Solid Tumors

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