13C-Glucose Tracing of Tumour and T Cells in the Ascites of Ovarian Cancer Patients.

NCT ID: NCT05025878

Last Updated: 2024-08-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

10 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-10-20

Study Completion Date

2024-08-31

Brief Summary

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The objective of the study is to investigate the metabolism of cells in the ascites tumour microenvironment of ovarian cancer patients. This observational study involves intravenous infusion of \[U-13C\]glucose into patients during standard paracentesis.

Detailed Description

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Participants and Location:

This study will recruit up to 10 patients of at least 18 years of age with ascites due to diagnosed ovarian cancer. Eligible study patients will be screened and recruited at BC Cancer - Victoria. Paracentesis procedure and patient consent will occur at the Island Health - Royal Jubilee Hospital.

Study Design:

Participants meeting the inclusion criteria will be fitted with a continuous glucose monitor (FreeStyle Libre) before proceeding to their scheduled appointment for paracentesis. Labeled glucose will be administered via I.V. at dose of 8g of labeled glucose in 60 mL over 10 min. This is followed by 4g of labeled glucose in 30 mL over an hour.

Sample collection and processing:

During \[U-13C\]glucose infusions, the ascites specimens will kept on ice. Samples will be collected and analyzed by flow cytometry and mass spectrometry for states of metabolism and metabolite profiles respectively. The ascites fluid will be monitored for changes in metabolite levels.

\[U-13C\]glucose Product Information:

\[U-13C\]glucose clinical grade will be compound BC Cancer Pharmacy.

Conditions

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Ovarian Cancer Ascites

Study Design

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Observational Model Type

OTHER

Study Time Perspective

OTHER

Study Groups

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[U-13C]glucose

All participants consented to the study will receive the \[U-13C\]glucose infusion and collection of ascites for research.

[U-13C]Glucose

Intervention Type DIETARY_SUPPLEMENT

Patients are intravenously infused with 28g of \[U-13C\]glucose over a 5 hour period. Briefly, \[U-13C\]glucose will be provided by intravenous line containing 8g of \[U-13C\]glucose in 60 mL over 10 min. After 10 minutes, 4g of \[U-13C\]glucose will be administered over an hour. This process will continue until the patient's ascites is drained, or after 5 hours. We will monitor blood glucose levels during infusions using a continuous glucose monitor.

Interventions

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[U-13C]Glucose

Patients are intravenously infused with 28g of \[U-13C\]glucose over a 5 hour period. Briefly, \[U-13C\]glucose will be provided by intravenous line containing 8g of \[U-13C\]glucose in 60 mL over 10 min. After 10 minutes, 4g of \[U-13C\]glucose will be administered over an hour. This process will continue until the patient's ascites is drained, or after 5 hours. We will monitor blood glucose levels during infusions using a continuous glucose monitor.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Ovarian cancer
* Any stage or grade of disease
* Ascites fluid that requires draining
* Any treatment regimen
* Primary or recurrent ascites
* Understands the concept of the study and give informed consent.

Exclusion Criteria

* Participants must not have diabetes or abnormal hemoglobin A1C levels.
* The patient's glucose levels must be between 4 - 11.1 mM before administering an infusion. This is to ensure that patients are within normal blood glucose levels, as described by Diabetes Canada.
* Participants cannot receive chemotherapy treatment during the 5 hour duration of the experiment as it may compromise the integrity of the data.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University of Texas Southwestern Medical Center

OTHER

Sponsor Role collaborator

Van Andel Research Institute

OTHER

Sponsor Role collaborator

University of Victoria

OTHER

Sponsor Role collaborator

British Columbia Cancer Agency

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Jennifer Rauw

Victoria, British Columbia, Canada

Site Status RECRUITING

Countries

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Canada

Central Contacts

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Julian J. Lum, PhD

Role: CONTACT

250-519-5700

Jennifer Rauw, MD

Role: CONTACT

250-519-5500

Facility Contacts

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Jennifer Rauw, MD

Role: primary

Other Identifiers

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H18-03615

Identifier Type: -

Identifier Source: org_study_id

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