- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04406857
Testing the Addition of a Radiation Sensitizing Drug, IPdR, to the Usual Chemotherapy Treatment (Capecitabine) During Radiation Therapy for Rectal Cancer
A Phase 1 Study of IPdR in Combination With Capecitabine and Radiotherapy in Rectal Cancer
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
PRIMARY OBJECTIVES:
I. To determine the maximum tolerated dose (MTD) of oral (PO) ropidoxuridine (IPdR) when administered with capecitabine (825 mg/m^2 twice daily [BID]) and radiation therapy (RT) (50.4 Gy in 28 fractions).
II. To determine the toxicities Common Terminology Criteria for Adverse Events (CTCAE) version (v) 5 of the combined modality therapy, IPdR + capecitabine + RT.
SECONDARY OBJECTIVES:
I. To establish the pharmacokinetics (PK) of once daily (QD) IPdR when combined with capecitabine.
II. To evaluate iododeoxyuridine (IUdR) incorporation in circulating granulocytes and correlate these levels with IPdR plasma PK and clinical/laboratory toxicities.
III. To assess IUdR incorporation in tumor cells obtained from the surgical resection specimen and correlate IUdR incorporation in tumor cells with IPdR PK.
IV. To assess IUdR incorporation in tumor cells obtained from the surgical resection specimen and correlate IUdR incorporation in tumor cells with tumor response as measured by pathological complete response (pCR) rate and neoadjuvant rectal (NAR) score.
V. To determine the pCR rate of IPdR + capecitabine + RT at the IPdR MTD as a measure of anti-tumor activity.
VI. To determine the NAR score of IPdR + capecitabine + RT at the IPdR MTD.
EXPLORATORY OBJECTIVES:
I. To explore the relationship between extent of exposure to RT and the development and severity of adverse events.
II. To explore the drug/drug/metabolite interactions between capecitabine, IPdR, and their metabolites.
OUTLINE: This is a phase IA, dose-escalation study of ropidoxuridine followed by a phase IB study.
Patients receive ropidoxuridine PO QD over 7 days per week and capecitabine PO BID over 6 days per week for 6 weeks. Patients also undergo radiation therapy over 1 fraction per day for 5 days per week (Monday-Friday) during weeks 1-5 and for 3 days during week 6 in the absence of disease progression or unacceptable toxicity. Approximately 8-12 weeks after completion of treatment with ropidoxuridine, capecitabine, and radiation therapy, patients undergo standard of care surgery.
After completion of study treatment, patients are followed up at 4 and 8-12 weeks following chemoradiation therapy.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
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California
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Los Angeles, California, United States, 90033
- USC / Norris Comprehensive Cancer Center
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Los Angeles, California, United States, 90033
- Los Angeles County-USC Medical Center
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Kentucky
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Lexington, Kentucky, United States, 40536
- University of Kentucky/Markey Cancer Center
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Ohio
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Columbus, Ohio, United States, 43210
- Ohio State University Comprehensive Cancer Center
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Oklahoma
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Oklahoma City, Oklahoma, United States, 73104
- University of Oklahoma Health Sciences Center
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Pennsylvania
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Philadelphia, Pennsylvania, United States, 19107
- Thomas Jefferson University Hospital
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Pittsburgh, Pennsylvania, United States, 15232
- University of Pittsburgh Cancer Institute (UPCI)
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Rhode Island
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Providence, Rhode Island, United States, 02903
- Rhode Island Hospital
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Utah
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Salt Lake City, Utah, United States, 84112
- Huntsman Cancer Institute/University of Utah
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- At diagnosis, patients must have had histologically proven adenocarcinoma of the rectum with no evidence of distant metastases
At diagnosis, the major portion of the tumor must have been intact, and the following must be documented:
- Distance of the lowest tumor margin from the anal verge; and
- Intent for sphincter sparing or non-sphincter sparing surgical resection according to the primary surgeon; and
- The majority of the untreated tumor must be < 12 cm from the anal verge or below the peritoneal reflection as determined by the treating surgeon
At diagnosis, the tumor must have been locally advanced stage II (T3-4 N0) or stage III (N positive [+]) rectal cancer with at least one of the following:
- Distal location (as defined by measurement on magnetic resonance imaging [MRI], endorectal ultrasound [ERUS]/pelvic computed tomography [CT] [with intravenous (IV) contrast] scan or palpable on digital rectal exam [DRE]): cT3-4 =< 5 cm from the anal verge, any N
- Bulky: Any cT4 or evidence that the tumor is adjacent to (defined as within 3 mm of) the mesorectal fascia on MRI or ERUS/pelvic CT (with IV contrast) scan
- High risk for metastatic disease with 4 or more regional lymph nodes (cN2). Clinical Nodal or "cN" status for eligibility includes the total number of nodes (N2 = 4 or more) in the mesorectal and superior rectal stations measuring >= 1.0 cm in any axis on cross sectional or endoscopic imaging. Nodes must measure 1.0 cm or greater to be considered positive for this eligibility requirement
- Not a candidate for sphincter-sparing surgical resection prior to neoadjuvant therapy (as planned by the primary surgeon)
- Patients must have received 8 cycles of neoadjuvant leucovorin, fluorouracil, and oxaliplatin (mFOLFOX) and must have completed this therapy at least 3 weeks (and no more than 6 weeks) prior to enrollment on this study
- Patients must intend to undergo surgical resection of the rectal primary tumor following chemoradiotherapy
Age >= 18 years
- Because no dosing or adverse event (AE) data are currently available on the use of IPdR in combination with capecitabine and RT in patients < 18 years of age, children are excluded from this study, but will be eligible for future pediatric trials
- Eastern Cooperative Oncology Group performance status =< 2 (Karnofsky >= 60%)
- Leukocytes >= 3,000/mcL
- Absolute neutrophil count >= 1,200/mcL
- Platelets >= 100,000/mcL
- Hemoglobin > 10 g/dL
- Total bilirubin =< 1.5 x institutional upper limit of normal (ULN)
- Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT]) =< 2.5 x institutional ULN
- Alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 x institutional ULN
- Creatinine =< 1.5 x institutional ULN OR glomerular filtration rate (GFR) >= 60 mL/min/1.73 m^2
- Alkaline phosphatase =< 3 x institutional ULN
- Sodium, potassium, chloride, bicarbonate, and magnesium within institutional normal limits
Patients with acquired immunodeficiency syndrome (acquired immunodeficiency syndrome [AIDS]-related illnesses) or known human immunodeficiency virus (HIV) disease must:
- Have a CD4 count >= 200 cells/uL within 30 days before enrollment,
- Be off all antiretroviral therapy (prophylaxis/treatment) more than 60 days before enrollment, and
- Have no evidence of opportunistic infections
- Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured and be receiving no therapy
- Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association functional classification. To be eligible for this trial, patients should be class 2B or better
- Patients must have the ability to swallow and retain oral medication
The effects of IPdR on the developing human fetus are unknown. For this reason and because radiosensitizing agents as well as other therapeutic agents used in this trial are known to be teratogenic, women of child-bearing potential (WOCBP)* and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. WOCBP must have a negative urine or serum pregnancy test within 72 hours prior to enrollment. If urine pregnancy results are positive or cannot be confirmed as negative, a serum pregnancy test will be required. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 4 months after completion of IPdR administration
- Women of childbearing potential (WOCBP) is defined as any female who has experienced menarche and who has not undergone surgical sterilization (hysterectomy or bilateral oophorectomy) or who is not postmenopausal. Menopause is defined clinically as 12 months of amenorrhea in a woman over 45 in the absence of other biological or physiological causes
- Ability to understand and the willingness to sign a written informed consent document. Participants with impaired decision-making capacity (IDMC) who have a legally-authorized representative (LAR) and/or family member available will also be eligible
Exclusion Criteria:
- Patients who have not recovered from adverse events due to prior mFOLFOX6 chemotherapy (i.e., have residual toxicities > grade 1) with the exception of alopecia
- Patients who are receiving any other investigational agents
- Patients with impaired gastrointestinal (GI) function or GI disease that may significantly alter the absorption of oral IPdR and capecitabine (e.g. ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, or small bowel resection). Patients with active inflammatory bowel disease (i.e., patients requiring current medical interventions or who are symptomatic) or have a history of abdominal surgery or other medical condition that may, in the opinion of the treating physician, interfere with GI motility or absorption. Patients with colostomies are allowed unless colostomy is for one of the precluded reasons above
- Treatment with warfarin is not allowed. However, therapy with heparin, low molecular weight heparin (LMWH), and DOACs (direct oral anticoagulating agent) such as dabigatran (Pradaxa), rivaroxaban, and apixaban (Eliquis) is allowed
- Patients with an active concurrent invasive malignancy
- History of prior invasive rectal malignancy, regardless of disease-free interval
- Patients who have received pelvic RT for rectal cancer, or prior pelvic RT for any other malignancy that would prevent the patient from receiving the required RT for this study
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to IPdR or capecitabine
- Patients with uncontrolled intercurrent illness
- Patients with psychiatric illness/social situations that would limit compliance with study requirements
- Pregnant women are excluded from this study because IPdR may have the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with IPdR, breastfeeding should be discontinued if the mother is treated with IPdR. These potential risks may also apply to other agents used in this study
- Patients that received live vaccines within 30 days prior to the first dose of trial treatment and while participating in the trial. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster, yellow fever, rabies, bacillus Calmette-Guerin (BCG), and typhoid vaccine. Seasonal flu vaccines that do not contain live virus are permitted
- Known homozygous DPD (dihydro pyrimidine dehydrogenase) deficiency
- History of, or any evidence of, active non-infectious pneumonitis
- Active autoimmune disease that has required systemic treatment within the past 2 years (i.e., with use of modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment
- History of active TB (Bacillus tuberculosis)
- Active or chronic infection requiring systemic therapy
- Diagnosis of immunodeficiency or receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of study therapy. The use of physiologic doses of corticosteroids may be approved after consultation with the study principal investigator (PI)
- Active seizure disorder uncontrolled by medication
- Synchronous colon cancer
- Other invasive malignancy within 5 years. Exceptions are colonic polyps, non-melanoma skin cancer, or carcinoma-in-situ of the cervix
- Antineoplastic therapy (e.g., chemotherapy or targeted therapy) for other invasive malignancy within 5 years (for the purposes of this study hormonal therapy is not considered chemotherapy)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Treatment (ropidoxuridine, capecitabine, radiation therapy)
Patients receive ropidoxuridine PO QD over 7 days per week and capecitabine PO BID over 6 days per week for 6 weeks.
Patients also undergo radiation therapy over 1 fraction per day for 5 days per week (Monday-Friday) during weeks 1-5 and for 3 days during week 6 in the absence of disease progression or unacceptable toxicity.
Approximately 8-12 weeks after completion of treatment with ropidoxuridine, capecitabine, and radiation therapy, patients undergo standard of care surgery.
|
Undergo radiation therapy
Other Names:
Given PO
Other Names:
Given PO
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Maximum-tolerated Dose
Time Frame: Up to 38 days
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The maximum-tolerated dose is defined as the dose below which 2 or more of 6 patients experience dose-limiting toxicities attributable to ropidoxuridine.
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Up to 38 days
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Incidence of Dose-limiting Toxicities (Part IB)
Time Frame: Up to 38 days
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Assessed by Common Terminology Criteria for Adverse Events version 5 and reached when any two grade 3 treatment-related non-hematologic toxicities or one grade 4 treatment-related hematologic and/or gastrointestinal toxicity are observed in two of the 6 patients enrolled at that dose level.
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Up to 38 days
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Tissue Biomarker Levels
Time Frame: Baseline up to 8-12 weeks following completion of chemotherapy
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Will be measured on continuous and binary scales will be assessed using Wilcoxon signed rank or McNemar's tests, respectively (two-sided; alpha = 0.05).
Associations between therapeutic response and baseline biomarker values or temporal changes in biomarkers will be explored using Fisher's exact tests or Wilcoxon rank sum tests.
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Baseline up to 8-12 weeks following completion of chemotherapy
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Percentage of Ropidoxuridine Incorporation in Circulating Granulocytes
Time Frame: Prior to ropidoxuridine dose and at 30, 60, 120, and 240 minutes after ropidoxuridine dose on day 8, then at 1-2 hours after ropidoxuridine dose on days 21 and 35
|
Will correlate these levels with ropidoxuridine plasma pharmacokinetics.
Two-sided Fisher's z-test with significance level of 0.05 and power of 80% will be used and the study will reject the null hypothesis (lack of correlation or r0 = 0) if we observe a correlation with r ranging from 0.79 for N = 10 subjects to 0.49 for N = 30 subjects.
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Prior to ropidoxuridine dose and at 30, 60, 120, and 240 minutes after ropidoxuridine dose on day 8, then at 1-2 hours after ropidoxuridine dose on days 21 and 35
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Percentage of Ropidoxuridine Incorporation in Circulating Granulocytes, Peripheral Blood Counts, and Toxicities
Time Frame: Prior to the ropidoxuridine on day 8, and at 1-2 hours following the ropidoxuridine dose on days 21 and 35
|
For the correlation of percentage of ropidoxuridine deoxyribonucleic acid incorporation in circulating granulocytes and peripheral blood counts and toxicities, assuming the target prevalence of grade 3/4 toxicity of 30%, the study will have a power of 80% with significance level of 0.05 on a two-sample means test to rule out the null hypothesis (equal means in groups with/ without grade 3/4 toxicity, m0 = m1) if the observed mean percentage of ropidoxuridine-deoxyribonucleic acid incorporation for patients with grade 3/4 toxicity is m1 = 3.3 times the mean m0 in the other group for N = 10 enrolled subjects, and m1 = 2.1 times the mean m0 for N = 30.
|
Prior to the ropidoxuridine on day 8, and at 1-2 hours following the ropidoxuridine dose on days 21 and 35
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Pathological Complete Response Rate at the Maximum-tolerated Dose
Time Frame: At the time of surgery
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In rectal cancer, the absence of viable tumor cells in the resection specimen (primary tumor mass, surrounding tissue and lymph nodes, T0 N0 M0) at the time of surgery, termed pathologic complete response.
Pathologic complete response determination will be made by the pathologist at the treating institution.
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At the time of surgery
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Neoadjuvant Rectal Score at the Maximum-tolerated Dose
Time Frame: At 6-10 weeks following completion of therapy
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Neoadjuvant rectal score is calculated based on the clinical T stage (cT), pathological T (pT) and pN stages as neoadjuvant rectal score = [5pN- 3 (cT- pT) + 12]2 / 9.61.
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At 6-10 weeks following completion of therapy
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Other Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Relationship Between Extent of Exposure to Radiotherapy and Incidence and Severity of Adverse Events
Time Frame: Up to 3 years
|
Up to 3 years
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Interactions of Capecitabine, IPdR and Their Metabolites
Time Frame: Up to 3 years
|
Up to 3 years
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Charles Kunos, University Health Network Princess Margaret Cancer Center LAO
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- Neoplasms
- Neoplasms by Site
- Gastrointestinal Neoplasms
- Digestive System Neoplasms
- Gastrointestinal Diseases
- Intestinal Diseases
- Intestinal Neoplasms
- Rectal Diseases
- Colorectal Neoplasms
- Rectal Neoplasms
- Molecular Mechanisms of Pharmacological Action
- Antimetabolites, Antineoplastic
- Antimetabolites
- Antineoplastic Agents
- Capecitabine
- Ropidoxuridine
Other Study ID Numbers
- NCI-2020-03610 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
- UM1CA186644 (U.S. NIH Grant/Contract)
- UM1CA186716 (U.S. NIH Grant/Contract)
- UM1CA186712 (U.S. NIH Grant/Contract)
- 10410 (CTEP)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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