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Irinotecan, Oxaliplatin, and Capecitabine as First-Line Therapy in Treating Patients With Metastatic or Unresectable Locally Advanced Small Bowel Cancer

A Phase II Trial of Pharmacogenetic-Based Dosing of Irinotecan, Oxaliplatin, and Capecitabine as First-Line Therapy for Advanced Small Bowel Adenocarcinoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00433550
Enrollment
33
Registered
2007-02-12
Start date
2007-05-31
Completion date
2016-05-31
Last updated
2017-08-24

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

Conditions

Recurrent Small Intestine Cancer, Small Intestine Adenocarcinoma

Brief summary

This phase II trial studies how well giving irinotecan hydrochloride together with oxaliplatin and capecitabine works as first-line therapy in treating patients with metastatic or unresectable locally advanced small bowel cancer. Drugs used in chemotherapy, such as irinotecan hydrochloride, oxaliplatin, and capecitabine, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more tumor cells.

Detailed description

PRIMARY OBJECTIVE: To assess the confirmed tumor response of the combination of oxaliplatin, irinotecan (irinotecan hydrochloride), and capecitabine in patients with advanced adenocarcinoma of the small bowel when dosed according to UGT1A1 genotype. SECONDARY OBJECTIVES: 1. To assess the toxicity of this regimen in these groups of patients. 2. To gain preliminary data on whether microsatellite instability influences outcome within this arm. 3. To gain preliminary data on whether evidence of celiac disease may affect toxicity and outcome. 4. To gain preliminary data on whether site of tumor origin (duodenal, jejunal, or ileal) affects response or survival. OUTLINE: Patients are assigned to 1 of 3 treatment groups based on UGT1A1 genotype. GROUP 1 (6/6 UGT1A1 genotype): Patients receive irinotecan hydrochloride intravenously (IV) over 90 minutes and oxaliplatin IV over 2 hours on day 1 and capecitabine orally (PO) twice daily (BID) on days 2-15. GROUP 2 (6/7 UGT1A1 genotype): Patients receive irinotecan hydrochloride as in group 1. They also receive oxaliplatin and capecitabine as in group 1 but at lower doses. GROUP 3 (7/7 UGT1A1 genotype): Patients receive irinotecan hydrochloride, oxaliplatin, and capecitabine as in group 1 but at lower doses. In all groups, treatment repeats every 3 weeks in the absence of disease progression or unacceptable toxicity. After the completion of study treatment, patients are followed every 6 weeks for 2 years and then periodically thereafter.

Interventions

DRUGcapecitabine

given orally

DRUGirinotecan hydrochloride

given IV

DRUGoxaliplatin

given IV

Sponsors

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

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Confirmation UDP glucuronosyltransferase 1 family, polypeptide A complex locus (UGT1A1) TA indel genotype of 6/6, 6/7, or 7/7 after pre-registration but prior to registration * Patient willingness to provide a serum sample for analysis for celiac disease (tissue transglutaminase antibodies) * Small bowel adenocarcinoma, either metastatic or locally advanced and not surgically resectable; NOTE: periampullary carcinoma and appendiceal cancer are not eligible * Histologic or cytologic confirmation of adenocarcinoma consistent with small bowel origin; biopsy can be of primary tumor or can be from a metastatic site if there is a primary small bowel tumor currently or previously present * Measurable disease; for patients with lesions \>= 1 cm but \< 2 cm, spiral computed tomography (CT) scan imaging must be used for tumor assessments * Life expectancy \>= 12 weeks * Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1, or 2 * \>= 4 weeks since prior major surgery to time of registration * \>= 2 weeks from completion of any radiation treatment * Absolute neutrophil count (ANC) \>= 1,500/mm\^3 * Platelets \>= 100,000/mm\^3 * Serum glutamic oxaloacetic transaminase (SGOT) =\< 5 x upper normal limit (UNL); =\< 2.5 x UNL if no liver metastases * Total bilirubin: * For 6/6 patients: =\< upper limit of normal (ULN) * For 6/7 or 7/7 patients: =\< 2.0 x ULN * Hemoglobin \>= 9.0 g/dL * Creatinine =\< 1.5 x UNL (if \> 1.5 x UNL, calculated creatinine clearance should be checked.; if it is \> 60 mL/min, then the patient is eligible for the study) * Negative pregnancy test done =\< 7 days prior to registration, for women of childbearing potential only

Exclusion criteria

* Prior chemotherapy regimen for advanced small bowel cancer (prior adjuvant chemotherapy with fluorouracil (5FU)/leucovorin is permitted if last dose was administered \>= 3 months prior to registration); prior oxaliplatin or irinotecan use as adjuvant therapy is not permitted * Prior radiotherapy to \> 25% of bone marrow * Active or uncontrolled infection * Evidence of serious intercurrent illness (e.g., unstable angina, symptomatic congestive heart failure, serious uncontrolled cardiac arrhythmia) * Pregnant women; women of child-bearing potential and men must agree to use adequate contraception (diaphragm, birth control pills, injections, foams, intrauterine device \[IUD\], or abstinence, etc.) for the duration of study participation; if a woman becomes pregnant or suspects that she is pregnant while participating in this study, she should inform her treating physician immediately and all study treatment discontinued * Nursing women; breast-feeding should be discontinued when the mother is treated with these agents * Men or women of childbearing potential who are unwilling to employ adequate contraception * Current evidence of other malignancy besides small bowel adenocarcinoma, with exception of non-melanoma skin cancer * Known central nervous system metastases or carcinomatous meningitis * Preexisting sensory neuropathy \>= grade 2 from any cause interfering with function * Concurrent therapy with sorivudine, brivudine, lamivudine, or stavudine

Design outcomes

Primary

MeasureTime frameDescription
Confirmed Tumor Response Rate (Proportion of Participants With Complete Response)36 weeksEvaluated using RECIST version 1.0. Confirmed tumor response rate was defined as achieving partial response (PR) or complete response (CR) in two consecutive assessments at least 6 weeks apart. CR is complete disappearance of all target lesions and PR is at least a 30% decrease in the sum of longest diameter (LD) of target lesions, taking as reference baseline sum LD. The confirmed response rate is reported as the number of participants with confirmed responses divided by the number of evaluated participants.

Secondary

MeasureTime frameDescription
Overall SurvivalUp to 2 yearsOverall survival will be defined as the time from registration to death. Patients lost to follow-up for this endpoint will be censored at the date of last contact (i.e., last known alive). The distribution of overall survival will be estimated using Kaplan-Meier methodology.
Progression Free SurvivalUp to 2 yearsTime to disease progression is defined as the time from registration to the earlier of documentation of disease progression or death. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions. The distribution of time to progression will be estimated using Kaplan-Meier methodology.
Duration of ResponseUp to 2 yearsDuration of response is defined for all evaluable patients who have achieved an objective response as the date at which the patient's objective status is first noted to be either a CR or PR to the date progression is documented. Duration of response will be analyzed using Kaplan-Meier methods.
Time to Treatment FailureUp to 2 yearsTime to treatment failure is defined to be the time from the date of registration to the date at which the patient is removed from treatment due to progression, toxicity, or refusal. If the patient is considered to have had a major treatment violation or is taken off study as a non-protocol failure, the patient will be censored on the date they are removed from treatment. Time to treatment failure will be analyzed using Kaplan-Meier methods.

Countries

United States

Participant flow

Pre-assignment details

Prior to registration, patients were tested for UGT1A1 TA indel genotype of 6/6, 6/7, or 7/7. Patients were grouped into one of three treatment groups depending on UGT1A1 genotype. All other genotypes were ineligible. The endpoints of this study are not to compare results between the UGT1A1 types, but to analyze as one combined cohort.

Participants by arm

ArmCount
Group 1 (6/6 UGT1A1 Genotype)
Patients receive 150 mg/m\^2 irinotecan hydrochloride IV over 90 minutes and 100 mg/m\^2 oxaliplatin IV over 2 hours on day 1. Patients also receive 1600 mg/m\^2/day capecitabine PO BID on days 2-15
17
Group 2 (6/7 UGT1A1 Genotype)
Patients receive 150 mg/m\^2 irinotecan hydrochloride IV over 90 minutes and 85 mg/m\^2 oxaliplatin IV over 2 hours on day 1. Patients also receive 400 mg/m\^2/day capecitabine PO BID on days 2-15
10
Group 3 (7/7 UGT1A1 Genotype)
Patients receive 75 mg/m\^2 irinotecan hydrochloride IV over 90 minutes and 85 mg/m\^2 oxaliplatin IV over 2 hours on day 1. Patients also receive 400 mg/m\^2/day capecitabine PO BID on days 2-15
6
Total33

Baseline characteristics

CharacteristicGroup 1 (6/6 UGT1A1 Genotype)Group 2 (6/7 UGT1A1 Genotype)Group 3 (7/7 UGT1A1 Genotype)Total
Age, Continuous64 years66.5 years62.5 years64 years
Region of Enrollment
United States
17 Participants10 Participants6 Participants33 Participants
Sex: Female, Male
Female
5 Participants1 Participants3 Participants9 Participants
Sex: Female, Male
Male
12 Participants9 Participants3 Participants24 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
16 / 1710 / 106 / 6
serious
Total, serious adverse events
7 / 176 / 101 / 6

Outcome results

Primary

Confirmed Tumor Response Rate (Proportion of Participants With Complete Response)

Evaluated using RECIST version 1.0. Confirmed tumor response rate was defined as achieving partial response (PR) or complete response (CR) in two consecutive assessments at least 6 weeks apart. CR is complete disappearance of all target lesions and PR is at least a 30% decrease in the sum of longest diameter (LD) of target lesions, taking as reference baseline sum LD. The confirmed response rate is reported as the number of participants with confirmed responses divided by the number of evaluated participants.

Time frame: 36 weeks

Population: One patient was later found to be a major treatment violation during cycle 1 and was not included in this analysis. All the other 32 patients were analyzed together for this endpoint.

ArmMeasureValue (NUMBER)
All Patients (6/6, 6/7, 7/7 UGT1A1 Genotype)Confirmed Tumor Response Rate (Proportion of Participants With Complete Response).38 proportion of patients
Secondary

Duration of Response

Duration of response is defined for all evaluable patients who have achieved an objective response as the date at which the patient's objective status is first noted to be either a CR or PR to the date progression is documented. Duration of response will be analyzed using Kaplan-Meier methods.

Time frame: Up to 2 years

Population: All patients who achieved a CR or PR are included in this analysis.

ArmMeasureValue (MEDIAN)
All Patients (6/6, 6/7, 7/7 UGT1A1 Genotype)Duration of Response9.0 months
Secondary

Overall Survival

Overall survival will be defined as the time from registration to death. Patients lost to follow-up for this endpoint will be censored at the date of last contact (i.e., last known alive). The distribution of overall survival will be estimated using Kaplan-Meier methodology.

Time frame: Up to 2 years

Population: One patient was later found to be a major treatment violation during cycle 1 and was not included in this analysis. All the other 32 patients were analyzed together for this endpoint.

ArmMeasureValue (MEDIAN)
All Patients (6/6, 6/7, 7/7 UGT1A1 Genotype)Overall Survival13.4 months
Secondary

Progression Free Survival

Time to disease progression is defined as the time from registration to the earlier of documentation of disease progression or death. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions. The distribution of time to progression will be estimated using Kaplan-Meier methodology.

Time frame: Up to 2 years

Population: One patient was later found to be a major treatment violation during cycle 1 and was not included in this analysis. All the other 32 patients were analyzed together for this endpoint.

ArmMeasureValue (MEDIAN)
All Patients (6/6, 6/7, 7/7 UGT1A1 Genotype)Progression Free Survival8.9 months
Secondary

Time to Treatment Failure

Time to treatment failure is defined to be the time from the date of registration to the date at which the patient is removed from treatment due to progression, toxicity, or refusal. If the patient is considered to have had a major treatment violation or is taken off study as a non-protocol failure, the patient will be censored on the date they are removed from treatment. Time to treatment failure will be analyzed using Kaplan-Meier methods.

Time frame: Up to 2 years

Population: One patient was later found to be a major treatment violation during cycle 1 and was not included in this analysis. All the other 32 patients were analyzed together for this endpoint.

ArmMeasureValue (MEDIAN)
All Patients (6/6, 6/7, 7/7 UGT1A1 Genotype)Time to Treatment Failure6.7 months

Source: ClinicalTrials.gov · Data processed: Mar 22, 2026