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Probiotic Yogurt Supplement in Reducing Diarrhea in Patients With Metastatic Kidney Cancer Being Treated With Vascular Endothelial Growth Factor-Tyrosine Kinase Inhibitor

Assessment of the Role of Bifidobacterium-Containing Food Supplement Activia™ and Bacteriomic Profiling and Other Biomarkers Associated With Vascular Endothelial Growth Factor Tyrosine Kinase Inhibitor (VEGF-TKI)-Induced Diarrhea in Patients With Metastatic Renal Cell Carcinoma (mRCC)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02944617
Enrollment
21
Registered
2016-10-26
Start date
2016-11-11
Completion date
2021-12-19
Last updated
2024-02-23

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

Conditions

Diarrhea, Metastatic Renal Cell Carcinoma, Stage IV Renal Cell Cancer

Brief summary

This randomized clinical trial studies how well probiotic yogurt supplement works in reducing diarrhea in patients with kidney cancer that has spread from the primary site to other places in the body (metastatic) and that are being treated with vascular endothelial growth factor-tyrosine kinase inhibitor therapy. Studying samples of blood and stool from patients who eat probiotic yogurt and those who avoid probiotic yogurt may help doctors plan better treatment.

Detailed description

PRIMARY OBJECTIVES: I. To determine if adding Activia yogurt (containing Bifidobacterium lactis DN-173 010) to the diet of patients with metastatic renal cell carcinoma (mRCC) increases the level of Bifidobacterium spp in stool. SECONDARY OBJECTIVES: I. To determine if Activia reduces the incidence of diarrhea for mRCC patients treated with vascular endothelial growth factor - tyrosine kinase inhibitor (VEGF-TKI) therapy. II. To compare pre-treatment levels of circulating T regulatory (Treg) cells and levels of peripheral signal transducers and activators of transcription 3 (STAT3) in patients with and without diarrhea with VEGF-TKI therapy, and correlate with Bifidobacterium, other bacteria, and Activia. III. To determine if patients with the diarrhea in mRCC patients treated with VEGF-TKI therapy have a lower baseline of Bifidobacterium spp. IV. To assess the change in global stool bacteriomic profile of patients receiving therapy with VEGF-TKI therapy with or without Activia. V. To better assess the feasibility of stool collection and bacteriomic profiling. VI. To explore association between psychosocial symptoms (anxiety and depression) and bacteriomic profile and gastrointestinal toxicity in mRCC patients receiving VEGF-TKI therapy therapy. OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Patients receive probiotic supplement Activia yogurt twice daily (QD) during weeks 2-13 of VEGF-TKI treatment. ARM II: Patients avoid any intake of yogurt or yogurt-containing foods and refrain from taking/consuming other probiotic supplements for 3 months.

Interventions

OTHERLaboratory Biomarker Analysis

Correlative studies

DIETARY_SUPPLEMENTMicronutrient-Fortified Probiotic Yogurt

Receive Activia yogurt

DRUGVEGF-TKI

Must be received as standard of care chemotherapy

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
City of Hope Medical Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

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

Inclusion criteria

* Cytologically or pathologically verified diagnosis of renal cell carcinoma (RCC) * Diagnosis of RCC that is defined as metastatic by standard criteria (American Joint Committee on Cancer \[AJCC\] 7th edition, 2010) * Planned treatment with any VEGF-TKI, treatment has not yet begun * Ability to understand and the willingness to sign a written informed consent * Ability to read and write English * Documented consent to participation to include the following study specific procedures: * Be able to provide up to six serial stool collections at home and deliver to FedEx location that day as per standard operating procedure * Have three 10-ml blood samples taken during a routine clinic visit * To not take probiotic supplements except as oriented * If randomized to the probiotic-supplemented group (the yogurt-based supplement Activia), be willing to comply with daily intake and record this intake as a component of a dietary log; the patient will be asked not to take any yogurt or yogurt-containing foods beyond this * If randomized to the probiotic-restricted group, agree not to consume yogurt or yogurt-containing foods * Maintain a dietary log and stool frequency log

Exclusion criteria

* Patients with a known intolerance to lactose or other constituents of Activia * Patients with irritable bowel syndrome, Crohn's disease, or other clinically significant gastrointestinal (GI) related condition that might confound the VEGF-TKI-related-diarrhea endpoint * Patients taking antibiotics or who plan to begin taking antibiotics * Any other condition that would, in the investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns or compliance with clinical study procedures (including compliance issues related to feasibility/logistics)

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Overall ResponseUp to 3 yearsPer Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR
Number of Participants With DiarrheaUp to 13 weeksThe rate of all grade diarrhea as graded by the Common Terminology Criteria for Adverse Events version 4.0 will be compared in the patients who receive the dietary supplement and those who do not. A Fisher's exact test with a 0.050 one-sided significance level will be used.

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS)Up to 36 monthsEstimated using the product-limit method of Kaplan and Meier. Failure defined as disease progression or death from any cause. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), 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.
Clinical Benefit RateUp to 6 monthsPer Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial response (PR): At least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR; Stable disease (SD): Neither sufficient shrinkage to qualify for CR or PR nor sufficient increase to qualify for PD; Progressive disease (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum of diameters on study (including baseline). Clinical Benefit Rate (CBR) = CR + PR + SD at 6 months

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm I (Probiotic Yogurt Supplement)
Patients receive 4 oz. probiotic supplement Activia yogurt bid during weeks 2-13 and refrain from taking/consuming other probiotic supplements. Micronutrient-Fortified Probiotic Yogurt: Receive Activia yogurt VEGF-TKI: Must be received as standard of care chemotherapy
10
Arm II (no Intervention)
Patients avoid any intake of yogurt or yogurt-containing foods and refrain from taking/consuming other probiotic supplements for 3 months. Laboratory Biomarker Analysis: Correlative studies VEGF-TKI: Must be received as standard of care chemotherapy
10
Total20

Baseline characteristics

CharacteristicArm II (no Intervention)TotalArm I (Probiotic Yogurt Supplement)
Age, Continuous67.5 years67.5 years67.0 years
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
10 participants20 participants10 participants
Sex: Female, Male
Female
3 Participants5 Participants2 Participants
Sex: Female, Male
Male
7 Participants15 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
3 / 106 / 10
other
Total, other adverse events
9 / 108 / 10
serious
Total, serious adverse events
0 / 100 / 10

Outcome results

Primary

Number of Participants With Diarrhea

The rate of all grade diarrhea as graded by the Common Terminology Criteria for Adverse Events version 4.0 will be compared in the patients who receive the dietary supplement and those who do not. A Fisher's exact test with a 0.050 one-sided significance level will be used.

Time frame: Up to 13 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm I (Probiotic Yogurt Supplement)Number of Participants With Diarrhea4 Participants
Arm II (no Intervention)Number of Participants With Diarrhea4 Participants
p-value: 1Fisher Exact
Primary

Number of Participants With Overall Response

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR

Time frame: Up to 3 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm I (Probiotic Yogurt Supplement)Number of Participants With Overall Response2 Participants
Arm II (no Intervention)Number of Participants With Overall Response1 Participants
Secondary

Clinical Benefit Rate

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial response (PR): At least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR; Stable disease (SD): Neither sufficient shrinkage to qualify for CR or PR nor sufficient increase to qualify for PD; Progressive disease (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum of diameters on study (including baseline). Clinical Benefit Rate (CBR) = CR + PR + SD at 6 months

Time frame: Up to 6 months

ArmMeasureValue (NUMBER)
Arm I (Probiotic Yogurt Supplement)Clinical Benefit Rate70 percentage of participants
Arm II (no Intervention)Clinical Benefit Rate80 percentage of participants
Secondary

Progression-free Survival (PFS)

Estimated using the product-limit method of Kaplan and Meier. Failure defined as disease progression or death from any cause. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), 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.

Time frame: Up to 36 months

ArmMeasureValue (MEDIAN)
Arm I (Probiotic Yogurt Supplement)Progression-free Survival (PFS)6.2 Months
Arm II (no Intervention)Progression-free Survival (PFS)13.8 Months
p-value: 0.077Log Rank

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026