Triple-Drug attack aims to wipe out Hard-to-Treat leukemia

NCT ID NCT02846623

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 2 trial tests a combination of three drugs—atezolizumab, obinutuzumab, and venetoclax—in 50 adults with chronic lymphocytic leukemia (CLL), small lymphocytic lymphoma, or Richter syndrome that has returned or not responded to prior treatment. The goal is to see if the combo can reduce cancer cells to undetectable levels (MRD-negative). The study is active but no longer recruiting.

What this could mean

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

Active substance

Atezolizumab, obinutuzumab, and venetoclax

What this could lead to

If successful, this combination could offer a new treatment option for people with hard-to-treat CLL or Richter syndrome, potentially achieving deep remission with no detectable cancer cells.

What could go wrong

This is a small, early-phase trial (50 people) without a comparison group. The drug combo may cause serious side effects, and results may not apply to all patients.

Disclaimer Read more

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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Conditions

The condition(s) this trial relates to.

B-cell chronic lymphocytic leukemia Richter transformation

As listed by the trial registrant

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

Contacts and locations

Locations

  • M D Anderson Cancer Center

    Houston, Texas, 77030, United States