An Efficacy Study of MORAb-009 (Amatuximab) in Subjects With Pleural Mesothelioma (Amatuximab)
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ClinicalTrials.gov Identifier: NCT00738582 |
Recruitment Status :
Completed
First Posted : August 20, 2008
Results First Posted : September 22, 2022
Last Update Posted : September 22, 2022
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Condition or disease | Intervention/treatment | Phase |
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Malignant Pleural Mesothelioma | Drug: MORAb-009 (Amatuximab) Drug: Pemetrexed Drug: Cisplatin | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 89 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | An Open-Label Clinical Trial of MORAb-009 in Combination With Pemetrexed and Cisplatin in Subjects With Mesothelioma |
Actual Study Start Date : | December 31, 2008 |
Actual Primary Completion Date : | June 30, 2011 |
Actual Study Completion Date : | January 10, 2014 |

Arm | Intervention/treatment |
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Experimental: Open Label
Pemetrexed, Cisplatin and MORAb-009 (Amatuximab)
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Drug: MORAb-009 (Amatuximab)
MORAb-009 (Amatuximab) by IV on Days 1 and 8 every 21 days for 6 cycles. Drug: Pemetrexed Pemetrexed 500 mg/m2 on Day 1 of each 21-day cycle for 6 cycles Drug: Cisplatin Cisplatin 75 mg/m2 on Day 1 of each 21-day cycle for 6 cycles |
- Number of Participants With Progression Free Survival (PFS) Responders and Non-responders at Month 6 [ Time Frame: Month 6 ]Number of participants with PFS responders and non-responders at Month 6 was reported. PFS was defined as the time from the date of the first dose of amatuximab to the date of disease progression or death due to any cause, as determined by independent radiologist based on the modified Response Evaluation Criteria in Solid Tumors (RECIST) utilizing the total tumor measurement (performed by computerized tomography (CT)/magnetic resonance imaging (MRI)) which includes the pleural unidimensional measure plus the total of the target lesion(s) measurement. A "response", in terms of PFS, was defined to be at least a 6-month stabilization of disease. Progressive disease (PD) as measured by Modified RECIST was defined as an increase of at least 20 percent (%) in the total tumor measurement over the nadir measurement, or the appearance of one or more new lesions.
- Overall Response Rate (ORR) [ Time Frame: From the date of first dose until evidence of CR or PR, up to approximately 5 years ]ORR, defined as the percentage of participants with objective evidence of complete response (CR) or partial response (PR) as determined by independent radiologist based on the modified RECIST utilizing the total tumor measurement (performed by CT/ MRI) which includes the pleural unidimensional measure plus the total of the target lesion(s) measurement. Tumor assessments performed up to the initiation of further anticancer therapy were considered. CR was defined as the disappearance of all target lesions with no evidence of tumor elsewhere, and PR was defined as at least a 30% reduction in the total tumor measurement. A confirmed response required a repeat observation on two occasions 4 weeks apart. ORR = CR + PR.
- Duration of Response (DR) [ Time Frame: From the first documentation of objective response (CR or PR) to the first documentation of disease progression, up to approximately 5 years ]DR was derived for those participants who achieved a PFS Response and had an objective evidence of CR or PR. DR was defined as the time (in months) from first documentation of objective response (CR or PR) to the first documentation of disease progression or death [as determined by independent radiologist based on the modified RECIST utilizing the total tumor measurement (performed by CT/ MRI) which includes the pleural unidimensional measure plus the total of the target lesion(s) measurement]. Tumor assessments performed up to the initiation of further anticancer therapy were considered. CR was defined as the disappearance of all target lesions with no evidence of tumor elsewhere, and PR was defined as at least a 30% reduction in the total tumor measurement. PD as measured by Modified RECIST was defined as an increase of at least 20% in the total tumor measurement over the nadir measurement, or the appearance of one or more new lesions.
- Time to Tumor Response (TTR) [ Time Frame: From the date of the first dose to first documentation of objective response, up to approximately 5 years ]TTR was derived for those participants with objective evidence of CR or PR. TTR was defined as the time from the date of the first dose of amatuximab to first documentation of objective tumor response. CR was defined as the disappearance of all target lesions with no evidence of tumor elsewhere, and PR was defined as at least a 30% reduction in the total tumor measurement.
- Overall Survival (OS) [ Time Frame: From the date of first dose to the date of death, up to approximately 5 years ]OS was defined as the time from the date of the first dose of amatuximab to the date of death.
- Overall Progression Free Survival [ Time Frame: From the date of first dose of amatuximab to the date of disease progression, up to approximately 5 years ]Overall PFS was defined as the time from the date of first dose of amatuximab to the date of disease progression or death due to any cause. In the absence of confirmation of death, the survival time was censored at the date of the last follow-up contact. Tumor assessments performed up to the initiation of further anticancer therapy were considered. PD as measured by Modified RECIST was defined as an increase of at least 20% in the total tumor measurement over the nadir measurement, or the appearance of one or more new lesions.
- Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) as a Measure of Safety and Tolerability of Amatuximab [ Time Frame: From date of first dose of study drug up to 30 days after the last dose of study treatment, up to approximately 5 years ]An adverse event (AE) was any untoward medical occurrence (example; any unfavorable and unintended sign including abnormal laboratory findings, symptom or disease) in a participant or clinical investigation participant after providing written informed consent for participation in the study until the end of study visit. TEAEs were defined as an AE that developed or worsened in severity during the on-treatment period (from first dose of amatuximab to 30 days after last dose of amatuximab). SAE was defined as any adverse event (appearance of [or worsening of any pre-existing]) undesirable sign, symptom or medical conditions which is fatal or life-threatening or results in persistent or significant disability/incapacity or constitutes a congenital anomaly/birth defect or requires inpatient hospitalization or prolongation of existing hospitalization or is medically significant.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Primary Inclusion Criteria:
- Confirmed diagnosis of malignant pleural mesothelioma (MPM) with the following characteristics: unresectable disease (or otherwise not a candidate for curative surgery); epithelial type or biphasic (mixed) type with low sarcomatous content.
- Measurable disease at Screening by computed tomography (CT)(or magnetic resonance imaging [MRI]).
- KPS of greater than or equal to 70% at Screening.
- Life expectancy of at least 3 months
Primary Exclusion Criteria:
- Sarcomatous type of mesothelioma
- Prior systemic therapy or radiotherapy for MPM; local radiotherapy for symptom control (ie, non-curative intent) is permitted.
- Confirmed presence of CNS tumor involvement.
- Evidence of other active malignancy requiring treatment.

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): NCT00738582

Study Director: | Bruce Wallin, MD | Morphotek |
Responsible Party: | Morphotek |
ClinicalTrials.gov Identifier: | NCT00738582 |
Obsolete Identifiers: | NCT00923455 |
Other Study ID Numbers: |
MORAb-009-003 Amatuximab 2008-005448-18 ( EudraCT Number ) |
First Posted: | August 20, 2008 Key Record Dates |
Results First Posted: | September 22, 2022 |
Last Update Posted: | September 22, 2022 |
Last Verified: | November 2015 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Mesothelioma Mesothelioma, Malignant Adenoma Neoplasms, Glandular and Epithelial Neoplasms by Histologic Type Neoplasms Neoplasms, Mesothelial Lung Neoplasms Respiratory Tract Neoplasms Thoracic Neoplasms Neoplasms by Site |
Pleural Neoplasms Lung Diseases Respiratory Tract Diseases Cisplatin Pemetrexed Antineoplastic Agents Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Folic Acid Antagonists Nucleic Acid Synthesis Inhibitors |