New strategy aims to shield myeloma patients from dangerous virus during treatment

NCT ID NCT06920251

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether the antiviral drug letermovir can prevent a common and serious viral infection called CMV in people with relapsed/refractory multiple myeloma who are receiving the immunotherapy elranatamab. The trial will enroll 40 adults who are CMV-positive. Researchers will monitor how many patients develop a significant CMV infection during treatment. If letermovir works, it could become a standard preventive measure for these patients.

What this could mean

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

Active substance

Letermovir (an antiviral drug) and elranatamab (a cancer immunotherapy)

What this could lead to

If successful, this could provide a way to prevent a serious viral infection (CMV) in multiple myeloma patients undergoing treatment, reducing hospitalizations and complications.

What could go wrong

This is a small, early-phase study with only 40 participants, so results may not apply to all patients. The drug may not effectively prevent CMV or could cause side effects.

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.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for RELAPSED/REFRACTORY MULTIPLE MYELOMA (RRMM) are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

plasma cell myeloma refractory plasma cell neoplasm cytomegalovirus infection prevention target

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: •••••@•••••

Locations

  • Seoul National University Hospital

    RECRUITING

    Seoul, South Korea

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