Clinical trial Recruiting at 4 sites Phase 4 Interventional Ages 18 and up

Combining mistletoe extract with immune checkpoint inhibitors for advanced cancer treatment

Official title: Safety and Modulation of Adaptive Immunity by Iscador® Qu Viscum Album Extract in Patients With Advanced, Recurrent or Metastatic Cancers Treated With Immune Checkpoint Inhibitors - a Randomized Trial

Run by University Hospital, Basel, Switzerland · NCT06408688 · Data updated 2026-11-12

This study is testing if adding a mistletoe extract to standard cancer treatments can help people with advanced cancer fight their disease better and safely.

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorUniversity Hospital, Basel, Switzerland
Academic / other
Locations4 sites (Baden and 3 other locations)
StatusRecruiting
StartedJune 24, 2024
Main results expectedNovember 2026
Study endsNovember 2026
Registry record updatedDecember 27, 2024
Trial IDNCT06408688 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults with locally advanced non-operable or metastatic solid tumors who are eligible for immune checkpoint inhibitor therapy.

Probably not a fit

Patients with skin cancer or those with contraindications to Iscador® Qu or immune checkpoint inhibitors may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the effects of adding Iscador® Qu, a mistletoe extract, to standard cancer treatment using immune checkpoint inhibitors in patients with advanced, recurrent, or metastatic solid tumors. The primary focus is to evaluate how this combination influences the immune system's ability to combat cancer, the safety of the treatment, and the overall effectiveness compared to immune checkpoint inhibitors alone. Researchers will assess the modulation of adaptive immunity and gather insights on patient experiences during treatment. The study aims to fill a knowledge gap regarding the potential benefits of mistletoe preparations in cancer therapy.

Why it matters

Potential benefit: If successful, this approach could enhance the effectiveness of cancer treatments and improve patient outcomes.

How similar studies have gone: While the use of mistletoe extracts in cancer treatment has been explored, this specific combination with immune checkpoint inhibitors is relatively novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Locally advanced non-operable or metastatic solid tumor, except for skin cancer
* Eligible for routine (standard) treatment with immune checkpoint inhibitor (+/- chemo/targeted therapy) as per the discretion of the local investigator
* Subjects must be eligible for treatment with mistletoe preparations (controlled brain metastases, prednisolone equivalent below 10mg, no known hypersensitivity)
* ECOG (Eastern Cooperative Oncology Group) performance status score of 0-2
* Males and Females at least 18 years of age; no subjects under tutelage
* No previous mistletoe treatment

Exclusion Criteria:

* Contraindications to Iscador® Qu or immune checkpoint inhibitors, e.g. hypersensitivity, active autoimmune disorder
* Patients with skin cancer
* Participation in another study with investigational drug within 30 days prior to enrolment (participation in observational studies or diagnostic studies without a particular drug intervention are allowed)
* Enrolment of the investigator, his/her family members, employees and other dependent

Where it's running

  • Kantosspital Baden AG
    Baden, Switzerland
    Recruiting
  • Universitätsspital Basel
    Basel, Switzerland
    Recruiting
  • Kantonsspital Baselland
    Liestal, Switzerland
    Recruiting
  • Tumor- und Brustzentrum Ostschweiz
    Sankt Gallen, Switzerland
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.