Cancer drug interaction study: what happens when you add an antibiotic?

NCT ID NCT00750841

First seen Jan 04, 2026 · Last updated Jun 23, 2026 · Updated 24 times

Summary

This Phase I study looks at how the antibiotic rifampicin changes the way the body processes the experimental cancer drug cediranib. 64 adults with advanced solid tumors who have not responded to standard treatments will take cediranib alone and then with rifampicin. The goal is to measure drug levels in the blood and check for side effects, helping guide future use of cediranib with other medications.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Locations

  • Research Site

    Edmonton, Alberta, T6G 1Z2, Canada

  • Research Site

    Montreal, Quebec, H3T 1E2, Canada

  • Research Site

    Dundee, DD1 9SY, United Kingdom

  • Research Site

    Glasgow, G12 0YN, United Kingdom

  • Research Site

    London, NW1 2PG, United Kingdom

  • Research Site

    London, SE1 9RT, United Kingdom

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

cediranib (experimental cancer drug) and rifampicin (antibiotic)

What this could lead to

If successful, this study could help doctors understand how to safely combine cediranib with other drugs that affect the same liver enzymes.

What could go wrong

This is a very early, small study focused on drug interactions, not on treating cancer. It may not lead to any direct benefit for participants.

Conditions

The condition(s) this trial relates to.

Neoplasm Metastasis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.