Second chance: new combo targets relapsed CLL after venetoclax fails

NCT ID NCT04523428

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This Phase 2 trial tests a combination of two drugs, venetoclax and acalabrutinib, in 60 adults with chronic lymphocytic leukemia (CLL) whose cancer returned after initial treatment with venetoclax plus an antibody. Participants first take acalabrutinib alone for 2 cycles, then add venetoclax for 24 more cycles. The goal is to see if this approach can clear the cancer from the bone marrow, offering a new option for patients who relapse.

What this could mean

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

Active substance

venetoclax and acalabrutinib

What this could lead to

If successful, this could offer a new treatment option for CLL patients whose disease returns after initial venetoclax therapy, potentially achieving deep remission without needing another antibody drug.

What could go wrong

This is a small Phase 2 trial with only 60 participants, so results may not apply to all patients. The combination may cause side effects like low blood counts or infections, and it is not yet known if it works better than other options.

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 chronic lymphocytic leukemia/small lymphocytic lymphoma

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • BE-Bruxelles-STLUC

    RECRUITING

    Brussels, Belgium

  • BE-Leuven-UZLEUVEN

    RECRUITING

    Leuven, Belgium

  • DK-Aarhus N-AUH

    RECRUITING

    Aarhus, Denmark

  • NL-Amsterdam-AMC

    RECRUITING

    Amsterdam, Netherlands

  • NL-Arnhem-RIJNSTATE

    RECRUITING

    Arnhem, Netherlands

  • NL-Breda-AMPHIA

    RECRUITING

    Breda, Netherlands

  • NL-Delft-RDGG

    RECRUITING

    Delft, Netherlands

  • NL-Den Bosch-JBZ

    RECRUITING

    's-Hertogenbosch, Netherlands

  • NL-Dordrecht-ASZ

    RECRUITING

    Dordrecht, Netherlands

  • NL-Ede-ZGV

    RECRUITING

    Ede, Netherlands

  • NL-Eindhoven-MAXIMAMC

    RECRUITING

    Eindhoven, Netherlands

  • NL-Groningen-UMCG

    RECRUITING

    Groningen, Netherlands

  • NL-Leeuwarden-MCL

    RECRUITING

    Leeuwarden, Netherlands

  • NL-Maastricht-MUMC

    RECRUITING

    Maastricht, Netherlands

  • NL-Nieuwegein-ANTONIUS

    RECRUITING

    Nieuwegein, Netherlands

  • NL-Rotterdam-IKAZIA

    RECRUITING

    Rotterdam, Netherlands

  • NL-Rotterdam-MAASSTADZIEKENHUIS

    RECRUITING

    Rotterdam, Netherlands

  • NL-Utrecht-UMCUTRECHT

    RECRUITING

    Utrecht, Netherlands