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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT03944226
Other study ID # 2-114-18
Secondary ID 17/049
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date May 13, 2019
Est. completion date June 30, 2020

Study information

Verified date May 2019
Source University of Aberdeen
Contact Vasiliki Mallikourti, MSc
Phone +44 (0)1224 438351
Email r02vm16@abdn.ac.uk
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Breast cancer is the most prevalent cancer affecting women, with 1 in 8 women in the UK developing breast cancer in their life time. Chemotherapy drugs, currently used for locally advanced breast cancers, are associated with side effects while dietary supplements have complex effects with a relatively small effect size.

Breast tumours have different metabolism compared to healthy tissue, including elevated lactate production by aerobic glycolysis (AG), an underpinning feature of metabolism in breast cancer cells. Dietary nitrate, contained in leafy green vegetables and beetroot, has been shown to improve energy efficiency in exercising skeletal muscle, positioning itself as a disruptor of AG.

The purpose of this study is to examine if dietary nitrate can disrupt AG and as a result to halt or even reverse tumour progression and survival. This study will look at scans of breast tumours using magnetic resonance imaging (MRI). Changes to tumour related biochemical substances will be measured by advanced magnetic resonance spectroscopy and changes to tissue structure will be measured by advanced diffusion MRI techniques.

In this study, 16 patients undergoing surgery will be recruited for two MRI scans following a 5 day intervention programme.


Description:

In this longitudinal study, the investigators propose to examine the changes in lipid composition and microstructure in breast tumours at baseline and post dietary nitrate intervention through the applications of novel non-invasive magnetic resonance spectroscopy (MRS) methods and diffusion and lipid profiling MR imaging methods in patients. The investigators hypothesise that dietary nitrate disrupts tumour progression in breast cancer.

1. Is there a significant difference in lipid composition in the tumour measured by MRS between baseline and post dietary nitrate intervention?

2. Is there a significant difference in lipid composition in the whole breast tissue surrounding tumour measured by MRI between baseline and post dietary nitrate intervention?

3. Is there a significant difference in tissue microstructure measured by MRI between baseline and post dietary nitrate intervention in the breast tissue?

To assess the effect of dietary nitrate on tumour progression, paired t-tests will be performed on lipid composition measured from tumour between baseline and post intervention. To assess the effect of dietary nitrate on tumour progression, paired t-tests will be performed on lipid composition in the whole breast tissue surrounding tumour between baseline and post intervention. To assess the effect of dietary nitrate on tissue microstructure paired t-tests will be performed on water displacement measured from tumour between baseline and post intervention.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 16
Est. completion date June 30, 2020
Est. primary completion date April 26, 2020
Accepts healthy volunteers No
Gender Female
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Patients with pathologically confirmed invasive ductal carcinoma (Grade 2 or 3)

- Undergoing wide local excision surgery or mastectomy

Exclusion Criteria:

- Started hormone or chemotherapy treatment before recruitment.

- Undergoing treatment for concurrent cancer diagnosis.

- Taking antibiotics, proton pump or vegetable dietary supplement.

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Beetroot juice
The patient will follow a 5 day dietary nitrate intervention programme, taking 3 doses of 7cl (0.4 g nitrate per dose) concentrated beetroot juice (SPORT shot, James White Drinks, Suffolk, U.K.) a day.

Locations

Country Name City State
United Kingdom Aberdeen Biomedical Imaging Centre Aberdeen

Sponsors (2)

Lead Sponsor Collaborator
University of Aberdeen NHS Grampian

Country where clinical trial is conducted

United Kingdom, 

References & Publications (6)

Baker J, Ajani J, Scotté F, Winther D, Martin M, Aapro MS, von Minckwitz G. Docetaxel-related side effects and their management. Eur J Oncol Nurs. 2009 Feb;13(1):49-59. doi: 10.1016/j.ejon.2008.10.003. Epub 2009 Feb 7. Review. — View Citation

Bentley R, Gray SR, Schwarzbauer C, Dawson D, Frenneaux M, He J. Dietary nitrate reduces skeletal muscle oxygenation response to physical exercise: a quantitative muscle functional MRI study. Physiol Rep. 2014 Jul 22;2(7). pii: e12089. doi: 10.14814/phy2.12089. Print 2014 Jul 1. — View Citation

Gatenby RA, Gillies RJ. Why do cancers have high aerobic glycolysis? Nat Rev Cancer. 2004 Nov;4(11):891-9. Review. — View Citation

Graham LJ, Shupe MP, Schneble EJ, Flynt FL, Clemenshaw MN, Kirkpatrick AD, Gallagher C, Nissan A, Henry L, Stojadinovic A, Peoples GE, Shumway NM. Current approaches and challenges in monitoring treatment responses in breast cancer. J Cancer. 2014 Jan 5;5(1):58-68. doi: 10.7150/jca.7047. Review. — View Citation

Jones AM. Dietary nitrate supplementation and exercise performance. Sports Med. 2014 May;44 Suppl 1:S35-45. doi: 10.1007/s40279-014-0149-y. Review. — View Citation

McMahon NF, Leveritt MD, Pavey TG. The Effect of Dietary Nitrate Supplementation on Endurance Exercise Performance in Healthy Adults: A Systematic Review and Meta-Analysis. Sports Med. 2017 Apr;47(4):735-756. doi: 10.1007/s40279-016-0617-7. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Baseline: Lipid composition in tumour Lipid peak volume with units of ratio Scan one day before intervention (Day 0)
Primary Post intervention: Lipid composition in tumour Lipid peak volume ratio with units of ratio Scan one day after completion of intervention (Day 6)
Primary Baseline: Lipid composition in whole breast tissue surrounding tumour fat fraction with units of % Scan one day before intervention (Day 0)
Primary Post intervention: Lipid composition in whole breast tissue surrounding tumour fat fraction with units of % Scan one day after completion of intervention (Day 6)
Primary Baseline: Water displacement in tumour Water displacement with units of micrometer Scan one day before intervention (Day 0)
Primary Post intervention: Water displacement in tumour Water displacement with units of micrometer Scan one day after completion of intervention (Day 6)