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NCT Number: NCT05359848

A Pilot, Feasibility Study of Intermittent Caloric Restriction Plus Plant-based Diet in Cancer Patients Receiving Chemotherapy

Caloric restriction may alter the response to chemotherapy induced stress response and enhance its antitumor effect. This study intends to use an intermitted caloric restriction protocol with alternate days before the chemotherapy administration to enhance the cytotoxic effect generated by standard treatment of cancer.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University at Buffalo / Great Lakes Cancer Care, Buffalo, New York, United States

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About this study

This pilot trial will provide preliminary evidence that 1) intermittent caloric restriction and a plant-based diet is feasible in cancer patients; 2) intermittent caloric restriction and a plant-based diet can be safely combined with standard chemotherapy; and 3) intermittent caloric restriction and a plant-based diet may reduce the side effects but increase the antitumor effects of standard chemotherapy.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • • Histologically documented, cancer patients who are eligible to receive cytotoxic chemotherapy.
  • 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)
  • 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/MRI 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

Treatment and study plan

Diet

Other

Using dietary interventions as an adjuvant tool may represent an effective step toward advancing the treatment options of cancer. Dietary modifications can impact the growth and proliferation of tumors via multiple mechanisms

Primary outcomes

  1. The feasibility of intermittent caloric restriction plus a plant-based diet in cancer patients receiving chemotherapy

    Time frame: 12 Months

    enrollment rate

  2. The feasibility of intermittent caloric restriction plus a plant-based diet in cancer patients receiving chemotherapy

    Time frame: 12 Months

    drop-out rate

  3. The feasibility of intermittent caloric restriction plus a plant-based diet in cancer patients receiving chemotherapy

    Time frame: 12 Months

    compliance with diet measured by self-reports

Secondary outcomes

  1. To obtain preliminary evidence of clinical efficacy of the combination of chemotherapy and intermittent caloric restriction

    Time frame: 12 Months

    objective response rate (partial + complete response)

  2. To obtain preliminary evidence of clinical efficacy of the combination of chemotherapy and intermittent caloric restriction

    Time frame: 12 Months

    progression-free survival (PFS)

  3. To obtain preliminary evidence of clinical efficacy of the combination of chemotherapy and intermittent caloric restriction

    Time frame: 12 Months

    overall survival (OS)

Other outcomes

  1. The safety and tolerability of the combination of chemotherapy and caloric restriction

    Time frame: 12 Months

    assessed using NCI CTCAE

Sponsors and collaborators

Lead sponsor

State University of New York at Buffalo

Other

Registry information

Official study title

A Pilot, Feasibility Study of Intermittent Caloric Restriction Plus Plant-based Protein Diet in Cancer Patients Receiving Chemotherapy

Important dates

Study start
2022
Primary completion
2026
Study completion
2027
First posted
May 4, 2022
Registry last updated
Feb 20, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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