A Study of ABT-414 in Participants With Newly Diagnosed Glioblastoma (GBM) With Epidermal Growth Factor Receptor (EGFR) Amplification (Intellance1)
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ClinicalTrials.gov Identifier: NCT02573324 |
Recruitment Status :
Completed
First Posted : October 9, 2015
Results First Posted : May 11, 2023
Last Update Posted : May 11, 2023
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This study seeks to determine whether the addition of ABT-414 to concomitant radiotherapy and temozolomide (TMZ) followed by combination of ABT-414 with adjuvant TMZ prolongs overall survival (OS) among participants with newly diagnosed glioblastoma (GBM) with epidermal growth factor receptor (EGFR) amplification.
In addition, there is a Phase 1, open-label, multicenter sub-study to assess the pharmacokinetics, safety and tolerability of ABT-414 in participants with newly diagnosed EGFR-amplified GBM who have mild or moderate hepatic impairment.
Condition or disease | Intervention/treatment | Phase |
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Glioblastoma Gliosarcoma | Drug: Temozolomide Drug: Depatuxizumab mafodotin Radiation: Radiation Drug: Placebo for ABT-414 | Phase 3 |
Expanded Access : An investigational treatment associated with this study is no longer available outside the clinical trial. More info ...
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 691 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Care Provider, Investigator) |
Masking Description: | Sub-study was open-label. |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Placebo Controlled Phase 3 Study of ABT-414 With Concurrent Chemoradiation and Adjuvant Temozolomide in Subjects With Newly Diagnosed Glioblastoma (GBM) With Epidermal Growth Factor Receptor (EGFR) Amplification (Intellance1) |
Actual Study Start Date : | January 4, 2015 |
Actual Primary Completion Date : | April 4, 2022 |
Actual Study Completion Date : | April 4, 2022 |

Arm | Intervention/treatment |
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Experimental: Depatuxizumab Mafodotin, Radiation and Temozolomide (TMZ)
Depatuxizumab mafodotin is given on Day 1 of Week 1, 3 and 5 along with the standard therapy of TMZ and radiation during the chemoradiation phase. Depatuxizumab mafodotin is given on Day 1 and 15 of each cycle along with TMZ (Days 1-5 of each cycle) per standard of care during the adjuvant phase.
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Drug: Temozolomide
Oral Capsule Drug: Depatuxizumab mafodotin Intravenous (IV) Infusion
Other Name: ABT-414 Radiation: Radiation |
Placebo Comparator: Placebo, Radiation and TMZ
Placebo is given on Day 1 of Week 1, 3 and 5 along with the standard therapy of TMZ and radiation during the chemoradiation phase. Placebo is given on Day 1 and 15 of each cycle along with TMZ (Days 1-5 of each cycle) per standard of care during the adjuvant phase.
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Drug: Temozolomide
Oral Capsule Radiation: Radiation Drug: Placebo for ABT-414 IV Infusion (IV) |
Experimental: Open-Label Sub-Study: Depatuxizumab Mafodotin, Radiation and TMZ
Depatuxizumab mafodotin is given to participants with hepatic impairment on Day 1 of Week 1, 3 and 5 along with the standard therapy of TMZ and radiation during the chemoradiation phase. Depatuxizumab mafodotin is given on Day 1 and 15 of each cycle along with TMZ (Days 1-5 of each cycle) per standard of care during the adjuvant phase.
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Drug: Temozolomide
Oral Capsule Drug: Depatuxizumab mafodotin Intravenous (IV) Infusion
Other Name: ABT-414 Radiation: Radiation |
- Overall Survival (OS) [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]Time to OS is defined as the number of days from the date of randomization to the date of death due to any cause.
- OS for the O6-methylguaninemethlytransferese (MGMT) Unmethylated Group [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]
Time to OS is defined as the number of days from the date of randomization to the date of death due to any cause.
Unmethylated MGMT promoter is associated with a worse prognosis in GBM
- OS for the MGMT Methylated Group [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]Time to OS is defined as the number of days from the date of randomization to the date of death due to any cause.
- OS for the Epidermal Growth Factor Receptor (EGFR)vIII-Mutated Tumor Subgroup [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]Time to OS is defined as the number of days from the date of randomization to the date of death due to any cause.
- Progression-Free Survival (PFS) [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]PFS will be defined as the number of days from the date of randomization to the date of earliest disease progression based on Response Assessment in Neuro-Oncology (RANO) criteria (see Wen et al. J Clin Oncol. 2010 Apr 10;28(11):1963-72) or to the date of death, if disease progression does not occur.
- PFS for EGFRvIII-Mutated Tumor Subgroup [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]PFS will be defined as the number of days from the date of randomization to the date of earliest disease progression based on Response Assessment in Neuro-Oncology (RANO) criteria or to the date of death, if disease progression does not occur.
- Deterioration Free Survival in M.D. Anderson Symptom Inventory Brain Tumor Module (MDASI-BT) Symptom Severity Score [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]The MDASI-BT assesses the severity of multiple brain tumor-related symptoms and the impact of these symptoms on daily functioning in the last 24 hours. It consists of 22 symptom items and 6 interference items, each rated from 0 to 10. MDASI-BT symptom severity score is defined as average over 13 core symptom items and 9 brain tumor symptom items, with a total score of 0 to 10, with higher score indicating worse symptoms/interference. Changes in symptom severity score were classified into 3 categories: improved (≤ -1), stable (> -1 and < 1), and deteriorated (≥ 1). Deterioration is defined as satisfying the deterioration criteria (i.e., increase in symptom severity score by ≥ 1 unit) without further improvement (i.e., failing to satisfy deterioration criteria) within 8 weeks or occurrence of death.
- Deterioration Free Survival in MDASI-BT Symptom Interference Score [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]The MDASI-BT assesses the severity of multiple brain tumor-related symptoms and the impact of these symptoms on daily functioning in the last 24 hours. It consists of 22 symptom items and 6 interference items, each rated from 0 to 10. MDASI-BT symptom interference score is defined as an average of 6 interference items, with a total score of 0 to 10, where higher scores indicate worse interference. Changes in symptom interference score were classified into 3 categories: improved (≤ -1), stable (> -1 and < 1), and deteriorated (≥ 1). Deterioration is defined as satisfying the deterioration criteria (i.e., increase in symptom interference score by ≥ 1 unit) without further improvement (i.e., failing to satisfy deterioration criteria) within 8 weeks or occurrence of death.
- Deterioration Free Survival in Neurocognitive Functioning on the Hopkins Verbal Learning Test Revised (HVLT-R) Total Recall Score [ Time Frame: Overall median duration of follow-up was 15.5 months (range: 0.1, 35.6). ]The HVLT-R consists of 3 parts. Free call has a range of 0 to 36, delayed recall has a range from 0 to 12, and delayed recognition has a range of -12 to 12. Higher scores indicating better function in all 3 parts. When scoring the HVLT-R, the 3 learning trials are combined to calculate a total recall score (range -12 to 60). Deterioration is defined as satisfying the deterioration criteria (i.e., decrease in HVLT-R total recall score by 5 units) without further improvement within 8 weeks or occurrence of death.

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Ages Eligible for Study: | 18 Years to 99 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Must have a clinical diagnosis of glioblastoma (GBM).
- Must have a confirmed epidermal growth factor receptor amplification in tumor tissue.
- Must have a Karnofsky Performance Status (KPS) >= 70 at assessment <= 14 days prior to randomization (N/A to the sub-study).
- Must have recovered from effects of surgery, postoperative infection and other complications of surgery.
- Must have adequate bone marrow, renal, and hepatic function (For the sub-study, the participant must have adequate bone marrow and renal function and have mild-to-moderate hepatic impairment).
Exclusion Criteria:
- Multifocal, recurrent or metastatic GBM or gliomatosis cerebri (For the sub-study, the participant can have multifocal GBM and glimatosis cerebri but can't have recurrent or metastatic GBM).
- Prior chemo therapy or radiosensitizer for head and neck cancer.
- Prior radiotherapy to the head or neck in overlap of radiation fields.
- Prior therapy for glioblastoma or other invasive malignancy.
- Prior, concomitant or planned treatment with Novo Tumor Treatment Fields (Novo-TTF), EGFR-targeted therapy, bevacizumab, Gliadel wafers or other intratumoral or intracavity anti-neoplastic therapy.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02573324

Study Director: | ABBVIE INC. | AbbVie |
Documents provided by AbbVie:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | AbbVie |
ClinicalTrials.gov Identifier: | NCT02573324 |
Other Study ID Numbers: |
M13-813 2015-001166-26 ( EudraCT Number ) |
First Posted: | October 9, 2015 Key Record Dates |
Results First Posted: | May 11, 2023 |
Last Update Posted: | May 11, 2023 |
Last Verified: | May 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | AbbVie is committed to responsible data sharing regarding the clinical trials we sponsor. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information (e.g., protocols, analyses plans, clinical study reports), as long as the trials are not part of an ongoing or planned regulatory submission. This includes requests for clinical trial data for unlicensed products and indications. |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) Clinical Study Report (CSR) |
Time Frame: | For details on when studies are available for sharing visit https://vivli.org/ourmember/abbvie/ |
Access Criteria: | Access to this clinical trial data can be requested by any qualified researchers who engage in rigorous independent scientific research, and will be provided following review and approval of a research proposal and statistical analysis plan and execution of a data sharing statement. Data requests can be submitted at any time after approval in the US and/or EU and a primary manuscript is accepted for publication. For more information on the process, or to submit a request, visit the following link https://www.abbvieclinicaltrials.com/hcp/data-sharing/ |
URL: | https://vivli.org/ourmember/abbvie/ |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Newly Diagnosed Glioblastoma Epithelial Growth Factor Receptor (EGFR) Temozolomide ABT-414 Radiology Therapy Oncology Group Antibody Drug Conjugate |
Brain Tumor Brain Tumor Group EGFRvIII EGFR Amplified First Line Therapy Brain Cancer |
Glioblastoma Gliosarcoma Astrocytoma Glioma Neoplasms, Neuroepithelial Neuroectodermal Tumors Neoplasms, Germ Cell and Embryonal Neoplasms by Histologic Type Neoplasms Neoplasms, Glandular and Epithelial |
Neoplasms, Nerve Tissue Temozolomide ABT-414 Antineoplastic Agents, Alkylating Alkylating Agents Molecular Mechanisms of Pharmacological Action Antineoplastic Agents Immunoconjugates Immunologic Factors Physiological Effects of Drugs |