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Completed

NCT Number: NCT01148849

Safety Study of MGAH22 in HER2-positive Carcinomas

The purpose of this study is to determine if MGAH22 is safe when given by intravenous (IV) infusion to patients with HER2-positive cancer. The study will also evaluate how long MGAH22 stays in the blood and how long it takes for it to leave the body, what is the highest dose that can safely be given, and whether it has an effect on tumors.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Seoul National University Hospital, Seoul, South Korea

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Histologically or cytologically confirmed carcinoma that overexpresses HER2 by immunohistochemistry (2+ or 3+ positivity by HercepTest or equivalent).
  • Progressive disease during or after last treatment regimen.
  • Appropriate treatment history for histological entity.
  • ECOG Performance Status <= 1.
  • Life expectancy >= 3 month.
  • Measurable disease
  • Acceptable laboratory parameters and adequate organ reserve.
  • Baseline LVEF >50%

Exclusion criteria

  • Lifetime anthracycline exposure > 350 mg/m2 of doxorubicin or equivalent
  • Major surgery within four weeks before enrollment.
  • Known hypersensitivity to murine or recombinant proteins, polysorbate 80, or any excipient contained in the drug formulation.
  • Second primary malignancy that has not been in remission for greater than 3 years. Treated non-melanoma skin cancer, cervical carcinoma in situ on biopsy, or squamous intraepithelial lesion on PAP smear, localized prostate cancer (Gleason score < 6), or resected melanoma in situ are exceptions and do not require a 3 year remission.
  • Active viral, bacterial, or systemic fungal infection requiring parenteral treatment within four weeks of enrollment. Patients requiring any oral antiviral, fungal, or bacterial therapy must have completed treatment within one week of enrollment.
  • History of chronic or recurrent infections that require continual use of antiviral, antifungal, or antibacterial agents.
  • History of deep vein thrombosis, pulmonary embolism, myocardial infarction, or stroke within three months of enrollment.
  • Known history of central nervous system (CNS) metastatic disease with evidence of residual or recurrent disease upon entry.
  • New York Heart Association class III or IV heart disease.

Treatment and study plan

margetuximab

Biological

margetuximab

Other names: MGAH22

Primary outcomes

  1. Occurrence of Adverse Events and Serious Adverse Events

    Time frame: Up to 28 days after last infusion

    Note that serious adverse events that are considered study drug related can be reported at any time after Study Day 50 or 28 days after the last infusion.

Secondary outcomes

  1. Number of participants with dose limiting toxicities for weekly dosing

    Time frame: up to Study Day 28 for weekly dosing

    Characterize maximum tolerated dose (MTD) or maximum administered dose (MAD) (if no MTD is defined) of margetuximab

  2. Number of participants with dose limiting toxicities every 3-week dosing

    Time frame: Up to Study Day 21 day for every 3-week dosing

    Characterize maximum tolerated dose (MTD) or maximum administered dose (MAD) (if no MTD is defined) of margetuximab

  3. Concentration of Margetuximab at Steady State once-weekly doses of margetuximab

    Time frame: Study Day 1, 2, 4, 5, 8, 15, 22, 29 ,36, 50, every 4 weeks thereafter throughout study completion, average 2 months.

  4. Number of patients who develop treatment-emergent anti-drug antibodies to margetuximab (Immunogenicity)

    Time frame: Study Day 1, 22, 50, every 4 weeks thereafter throughout study completion, average 2 months.

  5. Maximum Concentration of Margetuximab at Steady State once every 3 weeks schedule

    Time frame: Study Day 1, 2, 4, 5, 22, 29 ,36, 50, every 3 weeks thereafter throughout study completion, average 10 months.

  6. Area Under the Concentration Time Curve at Steady State (AUC ss) once every 3 weeks schedule

    Time frame: Study Day 1 through Day 22

    AUC is a mathematical calculation that describes the drug concentration in the blood over time.

  7. Area Under the Concentration Time Curve at Steady State (AUC ss) weekly dosing schedule

    Time frame: Study Day 1 through Day 8

    AUC is a mathematical calculation that describes the drug concentration in the blood over time.

  8. Clearance once every 3 weeks schedule

    Time frame: Study Day 1, 2, 4, 5, 22, 29 ,36, 50, every 3 weeks thereafter through study completion, average 10 months

    Drug clearance is the amount of drug removed from the bloodstream per unit of time.

  9. Volume of Distribution at Steady State once every 3 weeks

    Time frame: Study Day 1, 2, 4, 5, 22, 29 ,36, 50, every 3 weeks thereafter through study completion, average 10 months

    The volume of distribution is related to a whether how much drug is distributed to body tissues or remains in the bloodstream

  10. Terminal Half-life once every 3 weeks schedule

    Time frame: Study Day 1 through Day 22

    Terminal half-life is the time required to divide the plasma concentration by two after reaching pseudo-equilibrium.

  11. Terminal Half-life once every weekly dosing schedule

    Time frame: Study Day 1 through Day 8

    Terminal half-life is the time required to divide the plasma concentration by two after reaching pseudo-equilibrium.

  12. Number of Patients Who Develop Treatment-emergent Anti-drug Antibodies to Margetuximab once every 3 weeks schedule

    Time frame: Study Day 1, 2, 4, 5, 22, 29 ,36, 50, every 3 weeks thereafter through study completion, average 10 months

  13. Number of Patients with a Complete Response (CR) or Partial Response (PR) to Treatment

    Time frame: Assessed at 6, 18, 30, 42, and 54 weeks, they every 24 weeks until treatment discontinuation, average 10 months

    Investigate the preliminary anti-tumor activity as measured by response to treatment of margetuximab, using conventional Response Evaluation Criteria in Solid Tumors (RECIST) 1.1

  14. Duration of response

    Time frame: Assessed at 6, 18, 30, 42, and 54 weeks, they every 24 weeks until treatment discontinuation,average 10 months

    Duration of response is calculated at the time from CR or PR to relapse or cancer progression

  15. Progression free survival

    Time frame: Assessed at 6, 18, 30, 42, and 54 weeks, they every 24 weeks until treatment discontinuation, average 10 months

    The interval between the first dose of study medication and progression of disease or death from any cause

  16. Number of patients with complete response, partial response, stable disease, or progressive disease according to each CD16A-158 genotype (FF, FV, VV)

    Time frame: Fc receptor genotypes assessed prior to study treatment. Response to treatment assessed at 6, 18, 30, 42, and 54 weeks, then every 24 weeks until treatment discontinuation, average 10 months

    Fc Receptor polymorphisms may affect responsiveness to immunotherapies

  17. Changes in immune cell subsets

    Time frame: Before infusion and 1 hour after infusion on Study Day 1, Study Day 2, before infusion on Study Day 22 and 50

    Changes in immune cell subsets may affect responsiveness to immunotherapies

  18. Serum cytokines in the blood

    Time frame: Study Day 1, 2, 4, 5, 22, 29 ,36, 50, every 3 weeks thereafter through study completion, average 10 months

    Changes in the levels of cytokines in the blood may be related to an immune response to treatment.

  19. Amount HER2 in the blood

    Time frame: Before infusion and 1 hour after infusion on Study Day 1, Study Day 2, before infusion on Study Day 22 and 50

    Levels of HER2 in the bloodstream may indicate response to treatment.

  20. Antibody dependent cellular cytotoxicity (ADCC) activity

    Time frame: Before infusion and 1 hour after infusion on Study Day 1, Study Day 2, before infusion on Study Day 22 and 50

    ADCC activity is the ability of immune cells (like lymphocytes) to kill cells that have immune markers (like HER2) on the cell surface

  21. Fc receptor occupancy

    Time frame: Before infusion and 1 hour after infusion on Study Day 1, Study Day 2, before infusion on Study Day 22 and 50

    Fc receptor occupancy is the amount of time that the receptor is bound to an immune marker (like HER2) on the cell surface.

Sponsors and collaborators

Lead sponsor

MacroGenics

Industry

Collaborators

  • Green Cross Corporation
  • National Cancer Institute (NCI)

Registry information

Official study title

A Phase 1, Dose Escalation Study of MGAH22 in Patients With Refractory HER2 Positive Breast Cancer and Patients With Other HER2 Positive Carcinomas for Whom No Standard Therapy Is Available

Important dates

Study start
2010
Primary completion
2022
Study completion
2022
First posted
Jun 22, 2010
Registry last updated
Feb 26, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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