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CancerPhase 1/2NCT06896552

Single-Center Trial on Ketogenic Diet and Immunotherapy in Advanced Cancer This Study Evaluates the Safety and Effects of a Ketogenic Diet (KD) Combined With Immunotherapy in Adults With Advanced Melanoma, cSCC, or RCC.

A Phase 1/2 study testing Ketogenic diet in people with Cancer and Immunotherapy, run by Rabin Medical Center at 1 site in Israel.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

This clinical trial aims to evaluate whether a ketogenic diet (KD), when combined with immunotherapy, can improve immune function and treatment outcomes in patients with advanced melanoma, cutaneous squamous cell carcinoma (cSCC), or renal cell carcinoma (RCC). Read more about this study

Who is it for?
Ages 18 to 100 years
Conditions the study is for
Cancer, Immunotherapy, Ketogenic Diet
What is being tested?
Ketogenic diet
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteIsrael
Study dates
Apr 2025to Apr 2027
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • • Males and females, age >= 18 years
  • Patients with a histologically confirmed melanoma or cSCC or RCC receiving first line treatment with combination nivolumab and ipilimumab /relatlimab or single agent ipilimumab, nivolumab, pembrolizumab, Cemiplimab.
  • Able to read, understand, and provide written informed consent
  • Willing and able to complete all study-specific procedures and visits
  • Patients with Eastern Cooperative Oncology Group (ECOG) performance status ≤2.
  • Blood tests:
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  • Creatinine (Cr) < 1.5 mg/dL.
  • Magnesium normal range ( 1.5 -2,6 mg/dL)
  • Liver function tests (LFTs) 2.5x upper limit of normal (ULN).
  • Neutrophils ≥ 1,000/mm3, platelets ≥ 50,000/mm3, Hb>8 g/dL
  • Women of childbearing potential must have a negative β-HCG pregnancy test documented within 1 week of registration.

Who cannot join

  • • Individuals < 18 years of age
  • Unable or unwilling to provide consent
  • Other active malignancy (other than adequately treated and cured basal or squamous cell skin cancer, curatively treated in situ disease, or any other cancer from which the patient has been disease free >=2 years)
  • Currently consuming a low-carbohydrate (< 130 g/day) or KD or done so in the last 6-months
  • Patients currently participating in an interventional or therapeutic clinical trial involving the use of active anti-cancer therapy.
  • Active autoimmune diseases requiring active Immune suppressive medications
Show all 19Show fewer
  • Systemic steroid therapy, excluding for replacement due to adrenal insufficiency
  • Major surgery within last 3 months
  • BMI <18 or >35
  • Medical contraindications to the intervention diet as determined by the treating physician.
  • Self-reported major dietary restrictions related to the intervention such as irritable bowel syndrome (IBS).
  • Patients with a history or active eating disorder
  • Uncontrolled Diabetes mellitus or patients receiving insulin
  • Known diagnosis of HIV
  • Known active hepatitis B or hepatitis C
  • Known inborn errors of lipid metabolism
  • Sever or uncontrolled Hyperlipidemia (total cholesterol over 400 mg / dL, low-density lipoprotein (LDL) above 300 mg / dL, triglycerides over 500 mg / dl.).
  • Pregnant or lactating.
  • Patients who have undergone a transplant

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Keren Porper, M.Sc contact

97239377990

kerenporper83@gmail.com

Israel1 site
  • Rabin Medical Center

    Petah Tikva

    Meital Buskila, 97239377218, meitalbu2@clalit.org.il

Other trials in Israel

About this study

Official title: Investigating the Effect of Ketogenic Diet on Immunological Parameters in Advanced Cancer Patients Undergoing Immunotherapy

This clinical trial aims to evaluate whether a ketogenic diet (KD), when combined with immunotherapy, can improve immune function and treatment outcomes in patients with advanced melanoma, cutaneous squamous cell carcinoma (cSCC), or renal cell carcinoma (RCC).

Why Is This Study Important? Immunotherapy is a promising cancer treatment, but not all patients respond well. Research suggests that diet, particularly a high-fat, low-carbohydrate ketogenic diet, may help boost the immune system and make treatments more effective.

Read more

What Will This Study Examine?

Researchers want to understand:

Is the ketogenic diet well-tolerated for cancer patients? Does the diet improve immune responses and treatment effectiveness?

How Will the Study Work?

Participants will be placed into one of two groups:

Ketogenic Diet (KD) Group: A structured high-fat, low-carb diet (intermittent schedule: 2 weeks on, 1 week off).

Standard Diet (SD) Group: A typical diet with no major changes. Throughout the study, a dietitian will closely support and guide you. Both groups will continue their standard immunotherapy treatment.

What Will Participants Do? Write their food intake three times a week to help assess dietary adherence Follow their assigned diet for 10 weeks Have weekly check-ins with a dietitian (in-person at the hospital or via phone) Have weekly blood glucose and ketone level checks using a home device. Provide monthly blood samples to measure immune response during routine immunotherapy infusions Provide stool samples for gut microbiome analysis at the start and end of the study Measure Monthly Weight, body composition, and resting calorie burn Complete quality-of-life questionnaires

What Are the Potential Benefits? Improved response to immunotherapy Better understanding of how diet influences cancer treatment Potential for a new supportive strategy for cancer care

This study may help uncover ways to enhance cancer treatment through personalized nutrition.

Being tested
Ketogenic diet
Keywords
Metastatic Melanoma, Renal Cell Carcinoma, Ketogenic Diet, Dietary Intervention and Immunotherapy, Ketogenic diet (KD) and cancer treatment
Medical subject headings
Neoplasms, Melanoma, Carcinoma, Renal Cell

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ketogenic dietDietary supplement

    Ketogenic Diet as an Adjunct to Immunotherapy: Unlike many trials focused on chemotherapy or targeted therapies, this study specifically investigates the synergistic effects of the ketogenic diet with immune checkpoint inhibitors (ICIs), a promising approach for enhancing immunotherapy efficacy. The diet's high-fat, low-carbohydrate regimen is designed to shift metabolism towards ketone bodies and fatty acid utilization, potentially modulating immune responses and tumor immunogenicity in a way that standard diets do not.

Study groups in NCT06896552
Study groupRoleWhat they receive
Ketogenic Diet (KD) Group: A high-fat, low-carb diet (intermittent schedule: 2 weeks on,1 week off))ExperimentalSeven days (±2 days) before first dose of immunotherapy, patients will receive instructions to follow KD. The KD composition: 5-10% of the calories from carbohydrate, 20-30% protein and 60-70% fat. No calorie restriction will be applied, and patients will be instructed to eat to satiety. Supplemental MCT (medium chain triglyceride) oil or /and ketocal powder (Nutricia) will be added at the dietician's discretion in order to promote ketone production. During the period off the KD, the participants will be instructed to gradually follow standard diet composition (50-60% of the calories from carbohydrate, 15-20% protein and 20-30% fat). Diet protocol will be given to the patient along with specific menu suggestions for each individual.
Receives: Dietary Supplement: Ketogenic diet
Standard Diet (SD) Group: A typical diet with no major changes.No interventionNot described

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants Adhering to the Ketogenic Diet and Experiencing Treatment-Related Adverse Events as Assessed by CTCAE v5.0

    This measure will assess the feasibility and tolerability of the ketogenic diet (KD) in cancer patients undergoing immunotherapy by evaluating:

    Diet Adherence: The number of participants who maintain KD for at least 80% of the study duration, based on dietary intake logs and ketone level measurements.

    Tolerability: The number of participants experiencing treatment-related adverse events (AEs), as assessed using the Common Terminology Criteria for Adverse Events (CTCAE) v5.0. The severity and frequency of AEs will be documented and categorized.

    Measured: From enrollment to the end of treatment at 10 weeks

  2. Change in Peripheral Blood Mononuclear Cell (PBMC) Composition at Baseline, During, and Post-Intervention

    This measure will evaluate changes in immune cell composition in response to the ketogenic diet (KD) and immunotherapy.

    PBMC Composition: Assessed using cytometry by time-of-flight (CyTOF) to characterize shifts in immune cell subsets (e.g., T cells, natural killer cells, monocytes).

    Data Analysis: Changes from the baseline will be reported as absolute values and fold-changes over time.

    Measured: Monthly (week 0, 4, 10 ±1 week).

  3. Serum Cytokine Levels at Baseline, During, and Post-Intervention

    This measure will evaluate changes in cytokine levels in response to the ketogenic diet (KD) and immunotherapy.

    Serum Cytokine Levels: Quantified using multiplex immunoassays to measure the concentrations of key cytokines, such as IL-2, IFN-γ, TNF-α, and IL-10.

    Data Analysis: Changes from baseline will be reported as absolute values and fold-changes over time.

    Measured: Monthly (week 0, 4, 10 ±1 week).

Secondary outcomes (9)
  1. Overall response rate according to RECIST v1.

    Measured: End of treatment at 10 weeks

  2. Adherence to Dietary Interventions - Ketone Level Measurements

    Ketone Level Measurements: Ketone levels will be measured to assess whether participants are in a state of ketosis (>0.3 Mm), indicating adherence to the ketogenic diet.

    Data Analysis: Ketone levels will be analyzed to determine adherence to the ketogenic diet.

    Measured: Weekly from Baseline (Week 0) to Week 10

  3. Change in Body Weight (kg) Over the Study Period

    Body weight (in kilograms) will be measured using a calibrated digital scale at specified time points. Changes from baseline will be reported as absolute weight differences and percentage change

    Measured: Baseline (Week 0), Week 4, Week 10, and Week 14 (±1 week).

  4. Change in Quality of Life Score Assessed by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30)

    Quality of life will be assessed using the EORTC QLQ-C30 questionnaire, a validated tool for measuring cancer patients' health-related quality of life.

    The EORTC QLQ-C30 consists of 30 items, evaluating functional scales (physical, role, emotional, cognitive, and social functions), symptom scales (fatigue, pain, nausea/vomiting, etc.), and global health status.

    Scores range from 0 to 100. Higher scores on functional and global health scales indicate better quality of life.

    Higher scores on symptom scales indicate greater symptom burden (worse outcome).

    Changes from baseline to Week 10 will be reported as mean score differences.

    Measured: At enrollment (Baseline, Week 0) and at the end of treatment (Week 10).

  5. Fecal microbiome

    Such as, but not limited to, 16S analysis

    Measured: At enrollment (baseline) and at the end of treatment at 10 weeks

  6. Sarcopenia

    Assessed using CT scans of the axial L3 sections and customized software

    Measured: At enrollment (baseline) and at the end of treatment at 10 weeks

  7. Body composition-- Fat Mass and Lean Mass

    This measure will assess changes in body composition using bioelectrical impedance analysis (BIA).

    Fat Mass(kg) and Lean Mass (kg): Body composition will be assessed using Bioelectrical Impedance Analysis (BIA) to measure fat mass(kg) and lean mass(kg).

    Data Analysis: Changes in fat mass and lean mass will be reported as absolute values and fold-changes over time.

    Measured: Monthly (week 0, 4, 10 ±1 week).

  8. Resting Energy Expenditure (REE)

    Measured by indirect calorimeter - Q-NRG

    Measured: Monthly (week 0, 4, 10 ±1 week).

  9. The Rate of immune-related adverse events

    Measured: From enrollment to the end of treatment at 10 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Mar 2025
  2. Study startApr 2025 (estimated)
  3. Primary completionApr 2027 (estimated)
  4. Study completionApr 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Model description
Single-center, open-label, prospective, non-randomized, controlled, sequential two-arm clinical trial
Masking
None (open label)
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06896552
Sponsor's protocol ID
0046-25-RMC
Status last verified
Mar 2025
First submitted
5 Mar 2025
Last updated
26 Mar 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes

Publications

  • 1. Ribas A, Wolchok JD. Cancer immunotherapy using checkpoint blockade. Science. 2018;359(6382):1350-1355. 2. Hargadon KM, Johnson CE, Williams CJ. Immune checkpoint blockade therapy for cancer: An overview of FDA-approved immune checkpoint inhibitors. Int Immunopharmacol. 2018;62:29-39. 3. Haslam A, Prasad V. Estimation of the percentage of US patients with cancer who are eligible for and respond to checkpoint inhibitor immunotherapy drugs. JAMA Netw Open. 2019;2(5):e192535. 4. Golonko A, Pienkowski T, Swislocka R. Dietary factors and their influence on immunotherapy strategies in oncology: A comprehensive review. Cell Death Dis. 2024;15:254. 5. Weber DD, Aminzadeh-Gohari S, Tulipan J, Feichtinger RG. Ketogenic diet in cancer therapy. Aging (Albany NY). 2020;12(3):6018. 6. Klement RJ. The emerging role of ketogenic diets in cancer treatment. Curr Opin Clin Nutr Metab Care. 2017;20(1):28-34. 7. Harel M, Ortenberg R, Varanasi SK, Mangalhara KC, Mardamshina M, Markovits E, et al. Proteomics of melanoma response to immunotherapy reveals mitochondrial dependence. Cell. 2019;179:236-250.e218. 8. Ferrere G, Tidjani Alou M, Liu P, Goubet AG, Fidelle M, Kepp O, et al. Ketogenic diet and ketone bodies enhance the anticancer effects of PD-1 blockade. JCI Insight. 2021;6(2):e145207. 9. Jiang T, Zhou C, Ren S. Role of IL-2 in cancer immunotherapy. Oncoimmunology. 2016;5(6):e1163462. 10. Erickson N, Boscheri A, Linke B, Huebner J. Systematic review: Isocaloric ketogenic dietary regimes for cancer patients. Med Oncol. 2017;34(5):72. 11. Woolf EC, Curley KL, Liu Q, Scheck AC. The ketogenic diet alters the hypoxic response and affects expression of proteins associated with angiogenesis, invasive potential, and vascular permeability in a mouse glioma model. PLoS One. 2015;10:e0130357. 12. Weber DD, Aminzadeh-Gohari S, Tulipan J, Catalano L, Feichtinger RG, Kofler B. Ketogenic diet in the treatment of cancer - Where do we stand? Mol Metab. 2020;33:102-121. 13. Lussier DM, Woolf EC, Johnson JL, Brooks KS, Blattman JN, Scheck AC. Enhanced immunity in a mouse model of malignant glioma is mediated by a therapeutic ketogenic diet. BMC Cancer. 2016;16:310. 14. Rom-Jurek EM, Kirchhammer N, Ugocsai P, Ortmann O, Wege AK, Brockhoff G. Regulation of programmed death ligand 1 (PD-L1) expression in breast cancer cell lines in vitro and in immunodeficient and humanized tumor mice. Int J Mol Sci. 2018;19:563. 15. Husain Z, Huang Y, Seth P, Sukhatme VP. Tumor-derived lactate modifies antitumor immune response: Effect on myeloid-derived suppressor cells and NK cells. J Immunol. 2013;191:1486-1495. 16. Weber DD, Aminzadeh-Gohari S, Thapa M, Kofler B, Feichtinger RG. Ketogenic diets slow melanoma growth in vivo regardless of tumor genetics and metabolic plasticity. Cancer Metab. 2022;10:12. 17. Russo E, Nannini G, Amedei A. Exploring the food-gut axis in immunotherapy response of cancer patients. World J Gastroenterol. 2020;26(33):4919-4932. 18. Verhoog S, Taneri PE, Roa Diaz ZM, Marques-Vidal P, Troup JP, Bally L, et al. Dietary factors and modulation of bacteria strains of Akkermansia muciniphila and Faecalibacterium prausnitzii: A systematic review. Nutrients. 2019;11:1565. 19. Murphy S, Rahmy S, Gan D, Gao Y, Jiang H, Alves MR, et al. Ketogenic diet alters the epigenetic and immune landscape of prostate cancer to overcome resistance to immune checkpoint blockade therapy. Cancer Res. 2024;84(10):1597-1612. 20. Zhang Y, Kurupati R, Liu L, Zhou XY, Zhang G, Hudaihed A, et al. Enhancing CD8(+) T cell fatty acid catabolism within a metabolically challenging tumor microenvironment increases the efficacy of melanoma immunotherapy. Cancer Cell. 2017;32:377-391.e379. 21. NutRatio.com NutRatio [Internet]. [cited 2022 Nov 24]. Available from: https://nutratio.com/ 22. Römer M, Dörfler J, Huebner J. The use of ketogenic diets in cancer patients: A systematic review. Clin Exp Med. 2021;21(4):501-536

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Ketogenic diet in people with Cancer and Immunotherapy, run by Rabin Medical Center at 1 site in Israel.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 26 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Keren Porper, M.Sc (97239377990, kerenporper83@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants Adhering to the Ketogenic Diet and Experiencing Treatment-Related Adverse Events as Assessed by CTCAE v5.0 (time frame: From enrollment to the end of treatment at 10 weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06896552, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Mar 2025.

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