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Pemetrexed Disodium/Observation in Treating Patients W/ Malignant Pleural Mesothelioma w/Out Progressive Disease After 1st Line Chemotherapy

Randomized Phase II Study of Maintenance Pemetrexed Versus Observation for Patients With Malignant Pleural Mesothelioma Without Progression After First-Line Chemotherapy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01085630
Enrollment
72
Registered
2010-03-12
Start date
2010-04-30
Completion date
2021-04-01
Last updated
2021-08-18

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

Conditions

Malignant Mesothelioma

Keywords

epithelial mesothelioma, sarcomatous mesothelioma, stage II malignant mesothelioma, stage III malignant mesothelioma, stage IV malignant mesothelioma

Brief summary

RATIONALE: Pemetrexed disodium may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. PURPOSE: This randomized phase II trial is studying how well pemetrexed disodium or observation works in treating patients with malignant pleural mesothelioma without progressive disease after first-line chemotherapy.

Detailed description

OBJECTIVES: Primary * To determine if maintenance therapy with pemetrexed disodium versus observation improves progression-free survival of patients with malignant pleural mesothelioma who have at least stable disease after completion of first-line therapy comprising pemetrexed disodium with cisplatin or carboplatin. Secondary * To determine the overall survival of patients treated with this regimen versus observation. * To evaluate the frequency of responses in patients treated with this regimen. * To assess the toxicity of this regimen in these patients. OUTLINE: This is a multicenter study. Patients are stratified according to first-line chemotherapy regimen (cisplatin/pemetrexed disodium vs carboplatin/pemetrexed disodium), histologic subtype (epithelioid vs other) and number of courses received (\< 6 vs 6). * Arm I: Patients receive pemetrexed disodium IV over 10 minutes on day 1. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity. * Arm II: Patients undergo observation until disease progression. After completion of study therapy, patients are followed up every 6 months for 3 years.

Interventions

DRUGpemetrexed disodium

Given IV

OTHERclinical observation

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Alliance for Clinical Trials in Oncology
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically confirmed malignant pleural mesothelioma meeting 1 of the following cell types: * Epithelial * Sarcomatoid * Mixed type * Histologically documented malignant pleural mesothelioma, epithelial, sarcomatoid or mixed type, not amenable to surgical resection * Prior treatment * Currently receiving first-line treatment with pemetrexed + platinum; patients are to be registered to Cancer and Leukemia Group B (CALGB) 30901 no later than the last day of cycle 4 of first line therapy * Prior intracavitary cytotoxic or sclerosing therapy (including bleomycin) are acceptable; prior intrapleural cytotoxic chemotherapy will not be considered systemic chemotherapy * Prior surgical treatment is allowed * Prior radiation therapy is allowed * Non-pregnant and non-nursing; women of child bearing potential and men must agree to use an appropriate method of birth control throughout their participation in this study; appropriate methods of birth control include abstinence, oral contraceptives, implantable hormonal contraceptives (Norplant), or double barrier methods (diaphragm plus condom) * RANDOMIZATION ELIGIBILITY CRITERIA * Patients with complete response, partial response, or stable disease following 4, 5 or 6 cycles of first-line chemotherapy with pemetrexed AND either cisplatin or carboplatin; a maximum of 6 cycles of chemotherapy may have been given * Eastern Cooperative Oncology Group (ECOG) performance status of 0-1 * Granulocytes \>= 1,500/ul * Platelet count \>= 100,000/ul * Total bilirubin =\< 1.5 x upper limit of normal (ULN) * Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\]) =\< 2 x ULN * Calculated creatinine clearance \>= 45 ml/min * Disease not amenable to surgery * Must be enrolled on imaging protocol CALGB-580903 * Complete response, partial response, or stable disease after completion of 4 courses of first-line chemotherapy comprising pemetrexed disodium AND cisplatin or carboplatin * Study therapy will begin within 9 weeks following day 1 of cycle 4 of first-line treatment * No clinically significant pleural or peritoneal effusions that cannot be adequately managed by drainage before or during pemetrexed disodium PATIENT CHARACTERISTICS: * ECOG performance status of 0-1 * Life expectancy ≥ 12 weeks * Granulocytes ≥ 1,500/μL * Platelet count ≥ 100,000/μL * Total bilirubin ≤ 1.5 times upper limit of normal (ULN) * AST ≤ 2 times ULN * Creatinine clearance ≥ 45 mL/min * Not pregnant or nursing * Negative pregnancy test * Fertile patients must use effective contraception * No psychiatric illness that would prevent the patient from giving informed consent * No second malignancy except non-melanoma skin cancer or carcinoma in situ of the cervix unless curatively treated with no evidence of active disease for ≥ 5 years * No medical conditions that, in the opinion of the treating physician, would make study treatment unreasonably hazardous for the patient including, but not limited to, the following: * Ongoing or active infection such as HIV positivity * Inability to take oral medications * Psychiatric illness/social situations that would limit compliance with study requirements PRIOR CONCURRENT THERAPY: * See Disease Characteristics * Prior intracavitary cytotoxic or sclerosing therapy (including bleomycin) allowed * Prior intrapleural cytotoxic chemotherapy not considered systemic chemotherapy * Prior surgery allowed * Prior radiotherapy allowed * No concurrent palliative radiotherapy * No concurrent hormones or other chemotherapeutic agents except for the following: * Steroids for adrenal failure * Hormones for nondisease-related conditions (e.g., insulin for diabetes) * Intermittent use of dexamethasone as an antiemetic or premedication for pemetrexed disodium

Design outcomes

Primary

MeasureTime frameDescription
Progression-free SurvivalBaseline up to 3 yearsProgression free survival (PFS) is defined as the time from the date of randomization to the date of disease progression or death resulting from any cause, whichever comes first. Progression is defined according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. The median and 95% confidence intervals are estimated using the Kaplan-Meier estimator.

Secondary

MeasureTime frameDescription
Overall SurvivalBaseline up to 3 yearsOverall survival time is defined as the time from randomization to death due to any cause. The median and 95% confidence intervals are estimated using the Kaplan-Meier estimator.
Response RateUp to 3 yearsThe response rate (percentage) is the percent of patients whose best response was Complete Response (CR) or Partial Response (PR) as defined by RECIST 1.1 criteria. Percentage of successes will be estimated by 100 times the number of successes divided by the total number of evaluable patients. Response rates (including complete and partial response) will be tested using Fisher's exact test
Toxicity, Assessed Using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0 (v4)Baseline up to 3 yearsThe number of patients reporting grade 3 or higher adverse events considered at least possibly related to study treatment as graded by the NCI's Common Toxicity Criteria (CTCAE) Version 4 are reported here. A complete list of all reported adverse events is reported in the Adverse Events section of this report.

Countries

United States

Participant flow

Pre-assignment details

19 enrolled patients were not randomized for the following reasons: progression during first-line therapy, patient refusal, new disease grade 4 brain tumor, patient expired prior to randomization, insufficient creatinine levels, \> 1 week needed to randomize, prolonged adverse events, ineligible due to ECOG performance status being 2 or 3.

Participants by arm

ArmCount
Arm A (Observation)
Patients undergo observation until disease progression.
22
Arm B (Pemetrexed)
Patients receive pemetrexed 500 mg/m2 IV over 10 minutes (or per institutional guidelines) every three weeks. Patients will continue treatment until disease progression or excess toxicity.
27
Total49

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyIneligible30
Overall StudyInsufficient data10

Baseline characteristics

CharacteristicArm B (Pemetrexed)TotalArm A (Observation)
Age, Continuous71.0 years
STANDARD_DEVIATION 9
69.7 years
STANDARD_DEVIATION 9.6
68.1 years
STANDARD_DEVIATION 10.2
ECOG Performance Status
0
9 Participants15 Participants6 Participants
ECOG Performance Status
1
18 Participants34 Participants16 Participants
Race/Ethnicity, Customized
Black/African American
1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Unknown
3 Participants4 Participants1 Participants
Race/Ethnicity, Customized
White
23 Participants44 Participants21 Participants
Region of Enrollment
United States
27 Participants49 Participants22 Participants
Sex: Female, Male
Female
6 Participants13 Participants7 Participants
Sex: Female, Male
Male
21 Participants36 Participants15 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 27
other
Total, other adverse events
27 / 27
serious
Total, serious adverse events
3 / 27

Outcome results

Primary

Progression-free Survival

Progression free survival (PFS) is defined as the time from the date of randomization to the date of disease progression or death resulting from any cause, whichever comes first. Progression is defined according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. The median and 95% confidence intervals are estimated using the Kaplan-Meier estimator.

Time frame: Baseline up to 3 years

ArmMeasureValue (MEDIAN)
Arm A (Observation)Progression-free Survival3.0 months
Arm B (Pemetrexed)Progression-free Survival3.4 months
Secondary

Overall Survival

Overall survival time is defined as the time from randomization to death due to any cause. The median and 95% confidence intervals are estimated using the Kaplan-Meier estimator.

Time frame: Baseline up to 3 years

ArmMeasureValue (MEDIAN)
Arm A (Observation)Overall Survival11.8 months
Arm B (Pemetrexed)Overall Survival16.3 months
Secondary

Response Rate

The response rate (percentage) is the percent of patients whose best response was Complete Response (CR) or Partial Response (PR) as defined by RECIST 1.1 criteria. Percentage of successes will be estimated by 100 times the number of successes divided by the total number of evaluable patients. Response rates (including complete and partial response) will be tested using Fisher's exact test

Time frame: Up to 3 years

Population: One patient on the observation arm did not submit any follow-up forms and withdrew consent to all follow-up and thus excluded in this analysis.

ArmMeasureValue (NUMBER)
Arm A (Observation)Response Rate0 percentage of participants
Arm B (Pemetrexed)Response Rate11.1 percentage of participants
p-value: 0.2423Fisher Exact
Secondary

Toxicity, Assessed Using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0 (v4)

The number of patients reporting grade 3 or higher adverse events considered at least possibly related to study treatment as graded by the NCI's Common Toxicity Criteria (CTCAE) Version 4 are reported here. A complete list of all reported adverse events is reported in the Adverse Events section of this report.

Time frame: Baseline up to 3 years

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Arm A (Observation)Toxicity, Assessed Using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0 (v4)Grade 3 Adverse Event9 Participants
Arm A (Observation)Toxicity, Assessed Using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0 (v4)Grade 4 Adverse Event2 Participants

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026