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OncoMatch/Clinical Trials/NCT06679829

A Study of Melphalan With or Without Siltuximab in People With Multiple Myeloma Having an Autologous Stem Cell Transplant

Is NCT06679829 recruiting? Yes, currently enrolling (May 2026). This Phase 2 trial studies multiple treatments including Siltuximab and Melphalan for multiple myeloma.

Phase 2RecruitingMemorial Sloan Kettering Cancer CenterNCT06679829Data as of May 2026

Treatment: Siltuximab · MelphalanThe purpose of this study is to see if siltuximab plus population pharmacokinetic (PK)-dosed melphalan works as well as the usual approach (body surface area \[BSA\]-dosed melphalan) in people with multiple myeloma (MM) who are receiving an autologous stem cell transplant (ASCT) as part of their standard treatment. The researchers will also see if siltuximab in combination with population PK-dosed melphalan works to decrease symptoms after an ASCT, and will study the safety of siltuximab. For the run-in, 15 patients will receive siltuximab, 11 mg/kg, seven days before and 14 days after autologous hematopoietic stem cell infusion (+/-2 day).

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Extracted eligibility criteria

Cancer type

Multiple Myeloma

Prior therapy

Must have received: autologous stem cell transplant — planned

undergoing autologous HCT with plan off study for melphalan 140 or 200 mg/m2 undergoing HCT within 12 months of diagnosis

Cannot have received: IL-6 or IL-6 receptor targeting agent

Prior exposure to agents targeting IL-6 or the IL-6 receptor

Lab requirements

Blood counts

Platelet count ≥ 20 x 10^9/L

Kidney function

Calculated creatinine clearance > 40 mL/min

Liver function

ALT and AST ≤ 2.5 x ULN; Total bilirubin ≤ 2.5 x ULN; except if the elevation is due to Gilbert's syndrome

Cardiac function

LVEF >45% by MUGA or rest ECHO; QTc >460ms by Fridericia excluded (if bundle branch block or intraventricular conduction delay, exclusion for >500ms by Friderica); ischemic heart disease requiring intervention in prior 3 months or uncontrolled heart failure or arrhythmia excluded

Diffusion capacity >45% (adjusted for hemoglobin) as predicted by pulmonary function testing. LVEF >45% by MUGA or rest ECHO. Platelet count ≥ 20 x 10^9/L. ALT and AST ≤ 2.5 x ULN; Total bilirubin ≤ 2.5 x ULN; except if the elevation is due to Gilbert's syndrome. Calculated creatinine clearance > 40 mL/min. QTc >460ms by Fridericia excluded (if bundle branch block or intraventricular conduction delay, exclusion for >500ms by Friderica).

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

US trial sites

  • Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities) · Basking Ridge, New Jersey
  • Memorial Sloan Kettering Monmouth (Limited Protocol Activities) · Middletown, New Jersey
  • Memorial Sloan Kettering Bergen (Limited Protocol Activities) · Montvale, New Jersey
  • Memorial Sloan Kettering Suffolk - Commack (Limited Protocol Activities) · Commack, New York
  • Memorial Sloan Kettering Westchester (Limited Protocol Activities) · Harrison, New York

Showing up to 5 US sites. See all sites on ClinicalTrials.gov →

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