New combo may boost stem cell harvest for myeloma patients

NCT ID NCT06514508

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First seen Jun 27, 2026 · Last updated Sep 15, 2026 · Updated 2 times

Summary

This study tests whether adding motixafortide to standard G-CSF helps collect more stem cells for a bone marrow transplant in people with multiple myeloma. About 60 Chinese adults with active myeloma will receive either the drug combo or a placebo before stem cell collection. The goal is to see if the combo leads to enough cells in fewer sessions, making the transplant process smoother.

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Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 60 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2025

Expected to finish

May 2027

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 78 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * (Limit: 15,000 characters) 1. Patients must have a signed study informed consent prior to entering the study. 2. Patients must be between the ages of 18 and 78 years. 3. Diagnosis of active multiple myeloma (aMM) as defined by IMWG criteria. 4. At least one week (7 days) from last induction cycle of combination/multi-agent chemotherapy (e.g. KRD \[carfilzomib, lenalidomide, dexamethasone\] or VRD \[bortezomib, lenalidomide, dexamethasone\]) or from last single agent chemotherapy (e.g. lenalidomide, pomalidomide, bortezomib, dexamethasone, etc) prior to the first dose of G-CSF for mobilization. 5. Eligible for Autologous Hematopoietic stem cell transplantation according to the Investigator's discretion. 6. The subjects should be in first or second CR (including CR and SCR) or PR (including PR and VGPR). 7. Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1. 8. Adequate organ function at screening. 9. Female subjects must be of non-childbearing potential or, if of childbearing potential, must have a negative serum pregnancy test at screening and negative serum pregnancy test within 72 hours prior to G-CSF first administration. Women of childbearing potential (WOCBP) and male subjects with WOCBP partners must agree to use highly effective contraception method during the study period and within 90 days after the last study treatment. Exclusion Criteria: 1. Previous history of autologous or allogeneic-HCT. 2. Failed previous HSC collections or collection attempts. 3. Taken any of the listed below concomitant medications, growth factors or stimulating agents within the designated washout period: 1. Dexamethasone: 7 days 2. Thalidomide: 7 days 3. Lenalidomide: 7 days 4. Pamolidomide: 7 days 5. Bortezomib: 7 days 6. Carfilzomib: 7 days 7. G-CSF: 14 days 8. GM-CSF or Neulasta®: 21 days 9. Erythropoietin or erythrocyte stimulating agents: 30 days 10. Eltrombopag, romiplostim or platelet stimulating agents: 30 days 11. Carmustine (BCNU): 42 days/6 weeks 12. Daratumumab or any other anti-CD38: 28 days 13. Ixazomib: 7 day. 4. Received \>6 cycles lifetime exposure to thalidomide or lenalidomide. 5. Received \>8 cycles of alkylating agent combinations. 6. Received \> 6 cycles of melphalan. 7. Received prior treatment with radioimmunotherapy (e.g. radionuclides). 8. Received prior treatment with venetoclax. 9. Plans to receive maintenance treatment within 60 days post- transplantation (e.g.lenalidomide, bortezomib, pomalidomide, thalidomide, carfilzomib, etc.). 10. Has received a live vaccine within 30 days of the planned start of G-CSF administration. Seasonal flu vaccines that do not contain live virus are permitted. 11. Known active CNS metastases or carcinomatous meningitis. 12. A history of allergic reactions attributed to compounds of similar chemical or biologic composition to motixafortide, G-CSF, or other agents used in the study. 13. Has an active or uncontrolled infection requiring systemic therapy. 14. Has a known additional malignancy that is progressing or requires active treatment. 15. Is currently participating and/or receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment. 16. O2 saturation \< 92% (on room air). 17. Personal history or family history of Long QT Syndrome or Torsade de Pointes. 18. History of unexplained syncope, syncope from an uncorrected cardiac etiology, or family history of sudden cardiac death. 19. Myocardial infarction, CABG, coronary or cerebral artery stenting and/or angioplasty, stroke, cardiac surgery, or hospitalization for congestive heart failure within 3 months, Angina Pectoris Class \>2 or NYHA Heart Failure Class \>2. 20. ECG at screening showing QTcF \> 470 msec and/or PR \> 280 msec. 21. Mobitz II 2nd degree AV Block, 2:1 AV Block, High Grade AV Block, or Complete Heart Block, unless the patient has an implanted pacemaker or implantable cardiac defibrillator (ICD) with backup pacing capabilities. 22. Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial. 23. Is pregnant or breast feeding or expecting to conceive or women of childbearing potential unless consent to use two contraceptive methods or highly effective contraception, within the projected duration of the trial, starting with the Screening Visit through 90 days after the last dose of study drug. 24. Known human immunodeficiency virus (HIV) or active Hepatitis B (e.g., Hepatitis B Surface Antigen \[HBsAg\] reactive and HBV DNA\>500 IU/mL or \>2500 copies/mL) or Hepatitis C (e.g., Hepatitis C Virus \[HCV\] RNA \[qualitative\] is positive). 25. Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating Investigator.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Harbin The First Hospital

    NOT_YET_RECRUITING

    Harbin, Hei Longjiang, 150010, China

  • Peking University People's Hospital

    RECRUITING

    Beijing, Beijing Municipality, 100044, China

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