Using IgPro20 to prevent infections in patients with multiple myeloma and low immunoglobulin levels

Prospective Randomized Phase II Study Evaluating Efficacy and Safety of IgPro20 as Infection Prophylaxis in Patients With Multiple Myeloma and Hypogammaglobulinemia Receiving Therapy With a Bispecific Monoclonal Antibody (BsAbs)

PHASE2 · Memorial Sloan Kettering Cancer Center · NCT06976476

This study is testing if IgPro20 can help prevent infections in people with multiple myeloma and low immune levels who are receiving certain treatments.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorMemorial Sloan Kettering Cancer Center (other)
Drugs / interventionsCAR-T, chemotherapy, radiation
Locations8 sites (Basking Ridge, New Jersey and 7 other locations)
Trial IDNCT06976476 on ClinicalTrials.gov

What this trial studies

This study investigates the effectiveness of IgPro20 in preventing infections in individuals diagnosed with multiple myeloma who also have hypogammaglobulinemia. Participants will be those receiving bispecific monoclonal antibodies and will have undergone a specific number of treatment cycles. The study aims to determine if IgPro20 can enhance the immune response and reduce infection rates in this vulnerable population.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with relapsed/refractory multiple myeloma receiving bispecific antibodies and exhibiting hypogammaglobulinemia.

Not a fit: Patients with recent major infections, certain viral infections, or those undergoing specific therapies like CAR-T may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce infection rates in patients with multiple myeloma and low immunoglobulin levels.

How similar studies have performed: Other studies have explored similar immunoglobulin therapies, showing promise in infection prevention, but this specific approach with IgPro20 is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of RRMM receiving a commercially available bispecific antibody
* Received at least 1 but no more than 4 cycles of BsAb
* Males or females greater than or equal to 18 years old at the time of consent
* ECOG ≤ 3
* Life expectancy \> 12 months

Exclusion Criteria:

* HSCT within 3 months before enrollment
* Planned CAR-T therapy in the next 6 months
* \>1 major (deep-seated) infection within the preceding 3 months
* HIV infection, Active HCV, or Active HBV infection
* Pregnancy
* Neutrophils \< 500 x 10\^9 per mL, Platelets \< 30 x 10\^9 per mL
* History of cancer other than MM in the last 3 years requiring active chemotherapy or radiation
* Known reaction/allergy to IgG products
* Intracranial hemorrhage or embolic CVA in the last 6 months
* Hyperproteinemia
* Protein-losing enteropathy
* Creatinine Cl \<30 ml/min
* Documented progression on BsAb
* Known history of Hyperprolinemia
* On current or previous IVIG (in the last 3 months)

Where this trial is running

Basking Ridge, New Jersey and 7 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Multiple Myeloma, Hypogammaglobulinemia, Hypogammaglobulinemia, Acquired, IgPro20, Memorial Sloan Kettering Cancer Center, 24-137

Last reviewed 2026-05-15 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.