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A Pilot and Feasibility Study of a Dietary Intervention With Low-protein Meals in Cancer Patients Receiving Immunotherapies

A Pilot and Feasibility Study of a Dietary Intervention With Low-protein Meals in Cancer Patients Receiving Immunotherapies

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05356182
Enrollment
30
Registered
2022-05-02
Start date
2022-05-04
Completion date
2028-02-01
Last updated
2026-04-03

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

Conditions

Integrative Oncology, Medical Nutrition Therapy, Medical Oncology

Keywords

Oncology, Nutrition, Immunotherapy

Brief summary

The main idea of this study is that a low protein diet may alter the environment surrounding the tumor, enhancing the body's immune response leading to greater anticancer effects of treatment. This study intends to use a low-protein diet as a tool to enhance the immune response generated by immune check point inhibitor treatments.

Detailed description

This is a single center, randomized, open label study to assess the feasibility of a low-protein diet intervention in cancer patients who are receiving immunotherapies. Subjects will be randomized in a 1:1 ratio to either immunotherapy plus control diet arm (\ 20% protein content) or immunotherapy plus intervention low-protein diet arm (10% protein content).

Interventions

OTHERDiet

Control diet consisting of 20% protein, intervention diet consisting of 10% protein

Sponsors

State University of New York at Buffalo
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 documented solid tumor malignancies which is amenable for immunotherapy treatment with immune checkpoint inhibitors (i.e. PD1, PD-L1, CTLA inhibitors) as single agents or in combination. * Metastatic disease as evidenced by soft tissue and/or bony metastases on baseline bone scan and/or computed tomography (CT) scan of the chest, abdomen, and pelvis * Life expectancy of at least 6 months * Adults ≥ 18 years of age * Adequate hematologic, renal, and liver function as evidenced by the following: * White blood cell (WBC) ≥ 2,500 cells/μL * Absolute neutrophil count (ANC) ≥ 1,000 cells/μL * Platelet Count ≥ 100,000 cells/μL * Hemoglobin (HgB) ≥ 9.0 g/dL * Creatinine ≤ 2.0 mg/dL * Total bilirubin ≤ 2 x upper limit of normal (ULN) * Aspartate aminotransaminase (AST, SGOT) ≤ 2.5 x ULN * Alanine aminotransaminase (ALT, SGPT) ≤ 2.5 x ULN

Exclusion criteria

* • Eastern Cooperative Oncology Group (ECOG) performance status 2 or higher * Treatment with any of the following medications or interventions within 28 days of registration: * Systemic corticosteroids; however, use of inhaled, intranasal, and topical steroids is acceptable. * High dose calcitriol \[1,25(OH)2VitD\] (i.e., \> 7.0 μg/week) * A requirement for systemic immunosuppressive therapy for any reason * Any infection requiring parenteral antibiotic therapy or causing fever (temperature \> 100.5°F or 38.1°C) within 1 week prior to registration * A known allergy, intolerance, or medical contraindication to receiving the contrast dye required for the protocol-specified CT imaging * Any medical intervention or other condition which, in the opinion of the Principal Investigator, could compromise adherence with study requirements or otherwise compromise the study's objectives

Design outcomes

Primary

MeasureTime frameDescription
To assess the feasibility of low-protein diet intervention in cancer patients receiving immunotherapies.4 MonthsChange in blood urea nitrogen (BUN) from baseline to post-intervention (following 3 cycles of treatment) will be measured to assess adherence of following the diet intervention.

Secondary

MeasureTime frameDescription
To assess whether low-protein diet intervention augments the immune response to immunotherapies in cancer patients receiving immunotherapies4 MonthsIncludes isolation and characterization of antigen specific T cell clones
To assess the enrollment rate (safety and tolerability) of the combination of immunotherapies and low-protein diet intervention4 MonthsEnrollment rate
To assess the Drop-out rate (safety and tolerability) of the combination of immunotherapies and low-protein diet intervention4 MonthsDrop-out rate
To assess the safety and tolerability of the combination of immunotherapies and low-protein diet intervention4 MonthsCompliance with diet measured by self-report of patient
To obtain preliminary evidence of clinical efficacy of immunotherapies and low-protein diet compared to immunotherapies and control-diet using the RECIST v1.1 criteria4 MonthsObjective Response Rate (ORR)

Countries

United States

Outcome results

None listed

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