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A Study of Thymidylate Synthase Expression in Patients With Non-Small Cell Lung Cancer

An Exploratory, Prospective Phase II Study to Investigate Progression-Free Survival, Response and Overall Survival Seen With Pemetrexed/Cisplatin and the Role of Thymidylate Synthase Expression

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00887549
Enrollment
70
Registered
2009-04-24
Start date
2009-04-30
Completion date
2011-06-30
Last updated
2012-06-19

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

Conditions

Non-Small Cell Lung Cancer

Brief summary

Thymidylate synthase (TS) is a substance the body produces naturally. The purpose of this research is to determine if there is a link between TS production and how well patients respond to treatment of non-squamous non-small cell lung cancer (NSCLC). The aim for the future is that doctors could have a better understanding in advance about which patients might respond well to pemetrexed based on how much TS they produce.

Detailed description

All patients on this study will receive 4 intravenous injections of the chemotherapy drugs pemetrexed and cisplatin (with each injection approximately 3 weeks apart). Patients who complete 4 such injections and respond well to their treatment may continue to receive an injection of chemotherapy drug pemetrexed (approximately every 3 weeks). In general terms, treatment will last until either the patient or the doctor decides that there is no clear benefit in continuing with the treatment. TS levels will be measured from the tumour sample used to make the original diagnosis of NSCLC.

Interventions

DRUGpemetrexed

Induction Therapy: 500 milligrams per square meter (mg/m\^2), intravenous, day 1 of each 21 day cycle for the first 4 cycles; Maintenance Therapy: 500 milligrams per square meter (mg/m\^2), intravenous, day 1 of each 21 day cycle until progression or unacceptable toxicity occurs

DRUGcisplatin

Induction Therapy: 75 mg/m\^2, intravenous, day 1 of each 21 day cycle for the first 4 cycles

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients must have Stage 3B or 4 Non-Small Cell Lung Cancer of the non- squamous type * Patients must at least be able to be physically mobile, take care of yourself and be able to perform light activities such as light housework or office work * Patients must not have had previous chemotherapy treatment for lung cancer * Patients must not have had radiotherapy in the last 30 days * Patients must have measureable tumor lesions according to the Response Evaluation Criteria in Solid Tumors (RECIST) guidelines or disease that can be evaluated on computed tomography (CT) scan * Patients' test results assessing the function of their blood forming tissue, kidneys, liver and lungs are satisfactory * Women must be sterile, postmenopausal or on contraception and men must be sterile or on contraception

Exclusion criteria

* Patients cannot have received other investigational drugs within the last 30 days * Patients cannot have any serious, uncontrolled medical condition that might compromise their ability to take part in the study safely * Patients cannot have a current second primary malignant tumor * Patients cannot be having current treatment with any other anti-tumor therapy * Patients cannot have had a yellow fever vaccination within 30 days of enrolment * Patients who are unable to take vitamins (including injections of vitamin B12) or oral cortisone medication * Patients who are unable to stop taking more than 1.3 grams of aspirin on a daily basis or non-steroidal anti-inflammatory agents * Patients who are pregnant or breastfeeding

Design outcomes

Primary

MeasureTime frameDescription
Progression Free Survival (PFS)Baseline to measured progressive disease with follow-up every 6 weeks until progression of disease (up to 18 months after the last participant commenced induction therapy)PFS is time from first dose to first observation of disease progression/death (any cause). PFS is reported for participants with thymidylate synthase (TS) scores. For participants not known to have died by the data cut-off date and who do not have progressive disease, PFS will be censored at date of last objective progression-free disease assessment. For participants who receive systemic anticancer therapy after study drug discontinuation and prior to disease progression/death, PFS will be censored at date of last objective progression-free disease assessment prior to chemotherapy.

Secondary

MeasureTime frameDescription
Percentage of Participants With Tumor Response (Tumor Response Rate)Baseline to disease progression (up to 20 months)Tumor response was assessed using Response Evaluation Criteria In Solid Tumors (RECIST 1.0) criteria. Complete Response=disappearance of all target lesions; Partial Response=30% decrease in sum of longest diameter of target lesions; Progressive Disease=20% increase in sum of longest diameter of target lesions; Stable Disease=small changes that do not meet above criteria. Percentage of participants with tumor response was determined by the number of participants with PR or CR (confirmed or not) divided by the total number of treated participants multiplied by 100.
Percentage of Participants With Concordance Between Local and Central Histological DiagnosisBaselineA centralized pathology review on all enrolled participants was performed to confirm the histological diagnosis performed at the site. Upon review of the local diagnosis obtained at the respective site, the central reviewer established whether or not there was an agreement between the local and central diagnosis. The percentage of participants with concordance was defined as the number of participants for which there was an agreement divided by the number of treated participants (concordance rate) multiplied by 100.
Percentage of Participants Surviving at 18 Months (Overall Survival Rate)Baseline to date of death (up to 24.5 months)The percentage of participants surviving at 18 months was defined as the number of treated participants who had not died prior to 18 months from the date of their first dose divided by the total number of treated participants multiplied by 100. For participants who are alive, overall survival was censored at the last contact.

Countries

Ireland, United Kingdom

Participant flow

Pre-assignment details

The trial consists of induction therapy (up to 4 cycles of pemetrexed-cisplatin treatment) and maintenance therapy (pemetrexed only). Only participants who do not develop disease progression during induction therapy are eligible to receive maintenance therapy.

Participants by arm

ArmCount
Pemetrexed
Induction Therapy: pemetrexed 500 milligrams per square meter (mg/m\^2) and cisplatin 75 mg/m\^2, intravenous, day 1 of each 21 day cycle for the first 4 cycles; Maintenance Therapy: pemetrexed 500 milligrams per square meter (mg/m\^2), intravenous, day 1 of each 21 day cycle until progression or unacceptable toxicity occurs
70
Total70

Withdrawals & dropouts

PeriodReasonFG000
Induction TherapyAdverse Event8
Induction TherapyDeath due to Study Disease4
Induction TherapyDeath due to Study Drug Toxicity1
Induction TherapyPhysician Decision1
Induction TherapyProgressive Disease13
Maintenance TherapyAdverse Event16
Maintenance TherapyDeath due to adverse event1
Maintenance TherapyPhysician Decision1
Maintenance TherapyProgressive Disease25

Baseline characteristics

CharacteristicPemetrexed
Age Continuous63.0 years
STANDARD_DEVIATION 9.42
Eastern Cooperative Oncology Group (ECOG) Performance Status
0- Fully active
24 participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
1- Ambulatory, Restricted Strenuous Activity
46 participants
Past and Current Tobacco Usage
Ever used tobacco products
64 participants
Past and Current Tobacco Usage
Never used tobacco products
6 participants
Pathological Diagnosis
Adenocarcinoma, acinar
1 participants
Pathological Diagnosis
Adenocarcinoma, not otherwise specified (NOS)
34 participants
Pathological Diagnosis
Adenocarcinoma, poorly differentiated
20 participants
Pathological Diagnosis
Bronchioalveolar Carcinoma
6 participants
Pathological Diagnosis
Carcinoma, Non-Small Cell, Lung (NSCL), (NOS)
3 participants
Pathological Diagnosis
Carcinoma, NSC, Poorly Differentiated, Lung
5 participants
Pathological Diagnosis
Carcinoma, undifferentiated
1 participants
Race/Ethnicity, Customized
Asian
1 participants
Race/Ethnicity, Customized
Caucasian
69 participants
Region of Enrollment
Ireland
4 participants
Region of Enrollment
United Kingdom
66 participants
Sex: Female, Male
Female
32 Participants
Sex: Female, Male
Male
38 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
67 / 70
serious
Total, serious adverse events
41 / 70

Outcome results

Primary

Progression Free Survival (PFS)

PFS is time from first dose to first observation of disease progression/death (any cause). PFS is reported for participants with thymidylate synthase (TS) scores. For participants not known to have died by the data cut-off date and who do not have progressive disease, PFS will be censored at date of last objective progression-free disease assessment. For participants who receive systemic anticancer therapy after study drug discontinuation and prior to disease progression/death, PFS will be censored at date of last objective progression-free disease assessment prior to chemotherapy.

Time frame: Baseline to measured progressive disease with follow-up every 6 weeks until progression of disease (up to 18 months after the last participant commenced induction therapy)

Population: Population for the efficacy assessment includes all treated participants with a valid TS expression assessment. Six participants were censored for PFS.

ArmMeasureValue (MEDIAN)
PemetrexedProgression Free Survival (PFS)5.5 months
p-value: <0.000195% CI: [1.008, 1.021]Regression, Cox
Secondary

Percentage of Participants Surviving at 18 Months (Overall Survival Rate)

The percentage of participants surviving at 18 months was defined as the number of treated participants who had not died prior to 18 months from the date of their first dose divided by the total number of treated participants multiplied by 100. For participants who are alive, overall survival was censored at the last contact.

Time frame: Baseline to date of death (up to 24.5 months)

Population: All enrolled participants. Nineteen participants were censored for overall survival.

ArmMeasureValue (NUMBER)
PemetrexedPercentage of Participants Surviving at 18 Months (Overall Survival Rate)37.1 percentage of participants
Secondary

Percentage of Participants With Concordance Between Local and Central Histological Diagnosis

A centralized pathology review on all enrolled participants was performed to confirm the histological diagnosis performed at the site. Upon review of the local diagnosis obtained at the respective site, the central reviewer established whether or not there was an agreement between the local and central diagnosis. The percentage of participants with concordance was defined as the number of participants for which there was an agreement divided by the number of treated participants (concordance rate) multiplied by 100.

Time frame: Baseline

Population: All enrolled participants.

ArmMeasureValue (NUMBER)
PemetrexedPercentage of Participants With Concordance Between Local and Central Histological Diagnosis78.6 percentage of participants
Secondary

Percentage of Participants With Tumor Response (Tumor Response Rate)

Tumor response was assessed using Response Evaluation Criteria In Solid Tumors (RECIST 1.0) criteria. Complete Response=disappearance of all target lesions; Partial Response=30% decrease in sum of longest diameter of target lesions; Progressive Disease=20% increase in sum of longest diameter of target lesions; Stable Disease=small changes that do not meet above criteria. Percentage of participants with tumor response was determined by the number of participants with PR or CR (confirmed or not) divided by the total number of treated participants multiplied by 100.

Time frame: Baseline to disease progression (up to 20 months)

Population: All enrolled participants.

ArmMeasureValue (NUMBER)
PemetrexedPercentage of Participants With Tumor Response (Tumor Response Rate)30 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026