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OncoMatch/Clinical Trials/NCT06920251

Phase II Trials of Letermovir Prophylaxis in Patients With RRMM Undergoing Elranatamab Therapy

Is NCT06920251 recruiting? Yes, currently enrolling (Jun 2026). This Phase 2 trial studies Letermovir for relapsed refractory multiple myeloma (rrmm).

Phase 2RecruitingSeoul National University HospitalNCT06920251Data as of Jun 2026Location: South Korea

Treatment: LetermovirThis is an open-label, single arm, multicenter study to evaluate the efficacy of letermovir in the prevention of clinically significant CMV infection in adult, CMV-seropositive relapsed/refractory MM patients undergoing BsAbs therapy.

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Extracted eligibility criteria

Treatments studied

Other

Letermovir

Cancer type

Multiple Myeloma

Performance status

ECOG 0–2(Ambulatory, capable of self-care)

Demographics

Ages ≥ 19

Prior therapy

Min 3 prior lines

Must have received: proteasome inhibitor

Subject must have received at least one proteasome inhibitor

Must have received: immunomodulatory drug

Subject must have received at least one immunomodulatory drug

Must have received: anti-CD38 antibody

Subject must have received at least one anti-CD38 antibody

Cannot have received: allogeneic stem cell transplantation

Exception: allowed if >1 year prior and no active GVHD and off immunosuppressants

Subject has previously received allogeneic stem cell transplantation within a year during prior therapy. Patients who received allogeneic stem cell transplantation should not have evidence of active graft-versus-host disease (GVHD) and off any immunosuppressants.

Cannot have received: autologous stem cell transplantation

Exception: allowed if >12 weeks prior

received autologous stem cell transplantation within 12 weeks of initiating study treatment

Cannot have received: plasmapheresis

Exception: allowed if >28 days prior

Plasmapheresis within the last 28 days of initiating study treatment

Cannot have received: major surgery

Exception: allowed if >28 days prior

Major surgery (as defined by the investigator) within 28 days of initiating study treatment

Lab requirements

Blood counts

Absolute neutrophil count (ANC) < 1,000/µL; Platelet count < 25,000/µL

Kidney function

Estimated glomerular filtration rate (eGFR) < 30 mL/min or requiring dialysis

Liver function

Serum aspartate aminotransferase (AST) or alanine aminotransferase (ALT) > 2.5 × upper limit of normal (ULN); Serum total bilirubin > 1.5 × ULN, or for participants with documented Gilbert's syndrome > 3.0 mg/dL

Cardiac function

LVEF < 40% as determined by a MUGA scan or echocardiography; Prolonged QT syndrome (or QTcF >470 msec at screening); acute myocardial infarction or acute coronary syndromes within 6 months; clinically significant cardiac arrhythmias; thromboembolic or cerebrovascular events within 6 months

Absolute neutrophil count (ANC) < 1,000/µL. Platelet count < 25,000/µL. Estimated glomerular filtration rate (eGFR) < 30 mL/min or requiring dialysis. Serum aspartate aminotransferase (AST) or alanine aminotransferase (ALT) > 2.5 × upper limit of normal (ULN) Serum total bilirubin > 1.5 × ULN, or for participants with documented Gilbert's syndrome > 3.0 mg/dL. LVEF < 40% as determined by a MUGA scan or echocardiography; Prolonged QT syndrome (or QTcF >470 msec at screening); acute myocardial infarction or acute coronary syndromes within 6 months; clinically significant cardiac arrhythmias; thromboembolic or cerebrovascular events within 6 months

Structured fields extracted by AI. May contain errors — verify against the official protocol.

Frequently asked questions

Is NCT06920251 currently recruiting?

Yes, this trial is currently recruiting patients.

Are there prior therapy exclusions?

Yes. Prior allogeneic stem cell transplantation, autologous stem cell transplantation, plasmapheresis disqualifies patients from enrollment.

Could you qualify for this trial?

Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.

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