Menu
Not yet recruiting NCT06880939

Antarctic Krill Oil Functional Food Mitigates Bladder Cancer Treatment Side Effects

No phase Interventional Urinary Bladder Neoplasms

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Krill Oil Functional Food, Olive Oil.
Who it may be relevant to
Registry conditions: Urinary Bladder Neoplasms. Basic parameters: 18 years — 75 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
China
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

Randomized, Double-Blind, Parallel-Controlled, Multicenter Clinical Study on the Efficacy of Antarctic Krill Oil Functional Food in Alleviating Side Effects of Intravesical Therapy for Bladder Cancer

Overview

This randomized, double-blind, placebo-controlled, multicenter trial evaluates the efficacy and safety of Antarctic krill oil in reducing side effects of intravesical therapy for non-muscle-invasive bladder cancer (NMIBC). A total of 210 participants (18-75 years) will be randomized to receive either 2g/day of krill oil capsules (containing phospholipids, DHA, EPA, and astaxanthin) or placebo during intravesical treatment (epirubicin, pirarubicin, or BCG). Primary outcomes include bladder irritation symptoms (IPSS score), systemic adverse events, hematuria, and urinary tract infections. Secondary outcomes assess quality of life (QoL). Safety will monitor adverse events per CTCAE v5.0. The study follows GCP standards and includes rigorous data management and ethical oversight. Results may offer a dietary intervention to improve treatment tolerance and QoL for bladder cancer patients.

Detailed description

This randomized, double-blind, placebo-controlled, multicenter clinical trial aims to evaluate the efficacy and safety of Antarctic krill oil functional food in alleviating side effects of intravesical therapy for bladder cancer. The study will enroll 210 participants (105 per group) aged 18-75 years with histologically confirmed non-muscle-invasive bladder cancer (NMIBC) who are scheduled to undergo postoperative intravesical therapy (e.g., epirubicin, pirarubicin, or BCG). Participants will be randomized to receive either 2g/day of krill oil capsules (containing phospholipids, DHA, EPA, and astaxanthin) or placebo (olive oil capsules) during their intravesical treatment period.

The primary outcomes include the reduction in bladder irritation symptoms (assessed via IPSS score), incidence of systemic adverse events (e.g., nausea, fatigue), hematuria, and urinary tract infections. Secondary outcomes focus on quality of life (QoL) improvements using standardized questionnaires. Safety monitoring will track adverse events related to krill oil or intravesical therapy, graded per CTCAE v5.0 criteria.

Statistical analyses will compare groups using t-tests, chi-square tests, repeated-measures ANOVA, and Cox regression models. The study anticipates a medium effect size (d=0.5) with 90% power and accounts for a 20% dropout rate. Conducted across three centers in China (Qilu Hospital of Shandong University, Qingdao University Affiliated Hospital, and Shandong Provincial Hospital), the trial adheres to GCP standards and includes rigorous data management, adverse event reporting, and ethical oversight. Results may offer a novel dietary intervention to improve tolerance and quality of life for bladder cancer patients undergoing intravesical therapy.

Interventions

  • Dietary supplement Krill Oil Functional Food
    Take 2g of krill oil orally daily, with each krill oil capsule containing 1g, by consuming one capsule within 30 minutes after breakfast and one capsule within 30 minutes after dinner. The supplementation period begins on the day of the first bladder instillation treatment and continues until the day of the last bladder instillation treatment.
  • Dietary supplement Olive Oil
    Instead of taking krill oil orally, use placebo capsules that are visually similar, with the contents being olive oil, each capsule containing 1g. Take one capsule within 30 minutes after breakfast and one capsule within 30 minutes after dinner. The duration of intake begins on the day of the first bladder instillation treatment and continues until the day of the last bladder instillation treatment.

Primary outcome measures

  • The degree of relief from bladder irritation symptoms. [Time frame: From the start to the end of bladder instillation therapy，Monthly follow-up visits are continued until the end of perfusion therapy and last approximately 1 year]
  • Incidence of systemic adverse reactions [Time frame: From the start to the end of bladder instillation therapy，Monthly follow-up visits are continued until the end of perfusion therapy and last approximately 1 year]
  • Incidence of Hematuria [Time frame: From the start to the end of bladder instillation therapy，Monthly follow-up visits are continued until the end of perfusion therapy and last approximately 1 year]
  • Incidence of urinary tract infection [Time frame: From the start to the end of bladder instillation therapy，Monthly follow-up visits are continued until the end of perfusion therapy and last approximately 1 year]
Secondary outcome measures (1)
  • Quality of life score [Time frame: From the start to the end of bladder instillation therapy，Monthly follow-up visits are continued until the end of perfusion therapy and last approximately 1 year]

Eligibility criteria

Inclusion criteria

  • 1\. Diagnosed bladder cancer: The patient needs to be diagnosed with bladder cancer through pathological examination and have undergone bladder cancer surgery.
  • 2\. Planned to receive bladder infusion therapy: Patients need to plan to receive bladder infusion therapy after surgery and agree to participate in the study.
  • 3\. Age range: 18 to 75 years old.
  • 4\. Normal blood, liver and kidney function: Laboratory tests showed that the patient's blood routine, liver function and kidney function were within the normal range.
  • 5\. Signed informed consent: The patient understands the content of the study and voluntarily signs the informed consent.

Exclusion criteria

  • 1\. Serious comorbidities: including but not limited to heart disease, severe liver and kidney insufficiency, uncontrolled hypertension, diabetes, etc.
  • 2\. History of allergies: Patients with a known history of allergy to krill oil or perfusion drug components.
  • 3\. History of prior chemotherapy: Patients who have received perfusion therapy prior to this study.
  • 4\. History of other malignant tumors: Patients with a history of other malignant tumors.
  • 5\. Pregnancy or lactation: Female patients who are pregnant or lactating.
  • 6\. Psychiatric illness: Patients with a history of severe psychiatric illness or currently receiving treatment for psychiatric illness.
  • 7\. Poor study compliance: Patients who believe that they are unable to complete the entire trial process as required by the study.
  • 8\. Other: Other conditions that the investigator considers unsuitable to participate in this study.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Quadruple blind
Primary purpose
Treatment

Study locations

China · 1 center
  • Qilu Hospital of Shandong University — Jinan

Identifiers

NCT: NCT06880939 · KYLL-202412-011-1

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗