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Phase 3b Study for Management of Ocular Side Effects in Subjects with EGFR-Amplified Glioblastoma Receiving Depatuxizumab Mafodotin (ABT-414)

Phase 3b Study for Management of Ocular Side Effects in Subjects with EGFR-Amplified Glioblastoma Receiving Depatuxizumab Mafodotin (ABT-414) - M16-534

Status
Unknown
Phases
Phase 3
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON48749
Enrollment
9
Registered
2018-04-16
Start date
Unknown
Completion date
Unknown
Last updated
2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

eye disorders Glioblastoma

Interventions

Subjects will receive depatuxizumab mafodotin during the chemoradiation phase (consisting of radiation and temozolomide [RT/TMZ]) and depatuxizumab mafodotin during adjuvant therapy with TMZ. Depatu

Sponsors

AbbVie Deutschland GmbH & Co. KG
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: • Participant has a histologically proven, World Health Organization (WHO) grade IV glioblastoma or WHO grade IV gliosarcoma.;• Tumors must demonstrate epidermal growth factor receptor (EGFR) amplification.;• Tumors must be supratentorial in location.;• Participant must have recovered from the effects of surgery, postoperative infection, and other complications; has no significant post-operative hemorrhage.;• Participant has a Karnofsky performance status (KPS) of 70 or higher.;• Participant has adequate bone marrow, renal, and hepatic function.;• Electrocardiogram without evidence of acute cardiac ischemia = 3 months;•Participant has infection with hepatitis B virus (i.e., hepatitis B surface antigen) or hepatitis C virus (i.e., positive for hepatitis C antibody). Subjects who have a history of hepatitis C who have documented cures after anti-viral therapy may be enrolled. Subjects with confirmed positive test result for human immunodeficiency virus (HIV), with CD4 count = 200 cells/microliter within 30 days prior to registration, as the treatments involved in this protocol may be significantly immunosuppressive.

Exclusion criteria

Exclusion criteria: • Participants with newly diagnosed Glioblastoma: has received prior chemotherapy or radiotherapy for cancer of the head and neck region; has received prior treatment with Gliadel wafers or any other intratumoral or intracavitary treatment.;• Participant has hypersensitivity to any component of Temozolomide or dacarbazine.;• Participant has received anti-cancer therapy (including chemotherapy, immunotherapy, radiotherapy, hormonal, biologic, or any investigational therapy) prior to 5 years of Study Day 1.;• Participant has clinically significant uncontrolled condition(s) as described in the protocol.;• Participant has any medical condition which in the opinion of the investigator places the participant at an unacceptably high risk for toxicities.;• Participant has had another active malignancy within the past 3 years except for any cancer considered cured or non-melanoma carcinoma of the skin.;• Participant has a history of herpetic keratitis.;• Participant is not suitable for receiving ocular steroids with conditions as described in the protocol.;• Participant has had laser-assisted in situ keratomileusis (LASIK) procedure within the last 1 year or cataract surgery within the last 3 months.;• Participant has a visual condition that compromises the ability to accurately measure visual acuity or assess visual activities of daily living (vADLs).;• Participant has infection with hepatitis B virus (i.e., hepatitis B surface antigen) or hepatitis C virus (i.e., positive for hepatitis C antibody). Subjects who have a history of hepatitis C who have documented cures after anti-viral therapy may be enrolled. Subjects with confirmed positive test result for human immunodeficiency virus (HIV), with CD4 count = 200 cells/microliter within 30 days prior to registration, as the treatments involved in this protocol may be significantly immunosuppressive.

Design outcomes

Primary

MeasureTime frame
The primary endpoint is defined as the percentage of subjects with either a >= 3-line decline from baseline (>= + 0.3 on LogMAR scale) in visual acuity (with baseline correction), or >= Grade 3 OSE severity on the Corneal Epithelial Adverse Event (CEAE) scale, either of which will indicate inadequate control of OSEs requiring a change in OSE management strategy. Unless otherwise noted, visual acuity will be measured using baseline correction, which will be determined at the screening ophthalmology visit and used to assess visual acuity at all remaining ophthalmology visits, for measuring changes in visual acuity and for determining the visual acuity component of the primary endpoint. Details on determining baseline correction are provided in the operations manual. The primary endpoint will be assessed over 8 weeks after initiation of depatuxizumab mafodotin treatment.

Secondary

MeasureTime frame
The Logarithm of the Minimum Angle of Resolution (LogMAR) scale is used to measure visual acuity. The CEAE scale will be used to measure the severity of OSEs. These will be followed over the course of treatment.

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)