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Precision Medicine With Zibotentan in Microvascular Angina

2019-09-25 06:13:27 | BioPortfolio

Summary

Microvascular angina (MVA) is caused by abnormalities of the small vessels in the heart. Endothelin is a small chemical that circulates and accumulates in the blood vessel walls in patients with MVA, causing them to narrow or go into spasm and thicken in the longer term especially as levels of endothelin increase. As a result, patients experience pain, psychological burden and an inability to carry out daily activities.

Originally developed by AstraZeneca for prostate cancer, prior research has confirmed that Zibotentan relaxes the small blood vessels of patients with MVA which lends support to the idea that Zibotentan may bring some benefits to patients with MVA. This trial therefore proposes to look into re-purposing zibotentan as a new treatment for patients with MVA. The primary objective is to assess the effect of add-on treatment with Zibotentan to treadmill exercise times in adult patients with MVA and impaired exercise intolerance. Zibotentan could provide a new treatment pathway for patients, as well as be made available to the NHS at substantially lower cost than the currently used medications.

The trial aims to initially invite approx. 356 participants for genetic testing. A minimum of 75-100 participants will go forward into the main study, receiving either 10mg zibotentan or a dummy matched tablet (placebo) daily over two 12 weeks periods of each, completing their final visit at week 34. The study assessments will involve a health check at each visit, including information on the patient's wellbeing, genetic/research/safety bloods and a urine test, some quality of life questionnaires, and an exercise test. Participants will also have the option to consent to additional sub-study cardiovascular MRI scanning. Finally, participants will be invited to provide consent for long-term follow-up (maximum 20 years) of their electronic medical records (no additional patient contact).

Study Design

Conditions

Microvascular Angina

Intervention

Zibotentan, Placebo oral tablet

Status

Not yet recruiting

Source

NHS Greater Glasgow and Clyde

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-09-25T06:13:27-0400

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