Clinical trial Recruiting at 3 sites Phase 2 Interventional Men only

Using a fasting-mimicking diet to improve prostate cancer control and metabolic health

Official title: Intermittent Fasting Using a Fasting-Mimicking Diet to Improve Prostate Cancer Control and Metabolic Outcomes

Run by Cedars-Sinai Medical Center · NCT05832086 · Data updated 2026-11-12

This study is testing if a special fasting-mimicking diet can help men with advanced prostate cancer feel better and improve their overall health while they receive standard treatment.

Quick facts

PhasePhase 2
Study typeInterventional
SexMen only
Enrollment138 (estimated)
SponsorCedars-Sinai Medical Center
Academic / other
Drugs / interventionschemotherapy
Locations3 sites (Duarte, California and 2 other locations)
StatusRecruiting
StartedSeptember 13, 2023
Main results expectedSeptember 30, 2028
Study endsMarch 30, 2029
Registry record updatedAugust 10, 2026
Trial IDNCT05832086 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are men with metastatic castrate sensitive prostate adenocarcinoma who are starting first-line intensified androgen deprivation therapy.

Probably not a fit

Patients with diabetes not on stable medication or those regularly practicing a fasting diet may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 2 clinical trial involves 138 patients with metastatic castrate sensitive prostate adenocarcinoma who will be randomly assigned to either a fasting mimicking diet or a usual diet while receiving standard cancer treatment. The fasting mimicking diet consists of consuming specific L-Nutra products for 5 days each month over a period of 6 months. The study aims to evaluate the impact of this dietary approach on the effectiveness of cancer treatment and metabolic outcomes. Participants will be monitored by trained dietitians to ensure adherence to the diet.

Why it matters

Potential benefit: If successful, this approach could enhance cancer treatment effectiveness and improve metabolic health in patients with prostate cancer.

How similar studies have gone: Other studies have shown promising results with dietary interventions in cancer treatment, suggesting potential for success in this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Metastatic castrate sensitive prostate adenocarcinoma (Adenocarcinoma prostate histologically confirmed by biopsy AND Metastatic disease confirmed biopsy, or MRI scan)
* Men receiving or planning to start first-line intensified ADT (within 30 days of registration) with abiraterone, apalutamide, enzalutamide, or darolutamide with or without current or prior chemotherapy
* Reads, writes, and understands English or Spanish and has telephone access for remote contact with the study dietitian.
* Written informed consent obtained from subject and ability for subject to comply with the requirements of the study.

Exclusion Criteria:

* Allergies to any ingredients listed on the Xentigen Ingredient List
* Men with diabetes who are not on stable doses of antihyperglycemic medication for at least 6 months and without physician consent that they may safely hold antihyperglycemic medication during the 5 days of FMD
* Regularly practicing a fasting diet that in the opinion of the study physician would impact study participation
* Significant co-morbidities (i.e., cardiac, pulmonary, liver disease, ongoing alcohol/drug abuse) that in the opinion of the study physician would preclude enrollment in this study.
* Body Mass Index (BMI) \<20kg/m2
* Men actively trying to lose weight OR on weight loss medications (including but not limited to Contrave, Saxenda, Xenical) or planning to receive weight loss surgery in the next six months
* Self-reported weight loss ≥ 10% in the last 6 months

Where it's running

  • Beckman Research Institute of the City of Hope
    Duarte, California, United States
    Recruiting
  • Cedars-Sinai Medical Center
    Los Angeles, California, United States
    Recruiting
  • Duke University
    Durham, North Carolina, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.