Immunoglobulins in Multiple Myeloma Patients Receiving a BCMA-Directed T Cell Engager

Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
Age18+
SponsorCHU de Quebec-Universite Laval

About this trial

Bispecific antibody therapies targeting BCMA (B-cell maturation antigen) represent a novel therapeutic approach for patients with multiple myeloma. They are currently used in cases of refractory multiple myeloma but are also being investigated in earlier lines of treatment. However, these new therapies can lead to deeper immunosuppression and exacerbate an underlying immunosuppressive state in patients with multiple myeloma. As a result, infectious complications are common with these therapies and are a significant concern. Therefore, preventing infections in this population is crucial. However, data on the best strategies for prevention are currently lacking.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

≥ 18 years old

≥ 1 prior lines of therapy

Receiving a BCMA-directed T-cell Engager therapy (starting on treatment)

On previous Ig support or not

Disqualifiers

Less than 18 years old

Pregancy or breastfeeding

Trial design

Design model

Parallel

Treatments tested in this trial

  • Target trough IgG level of 8-10 g/L

    Drug

    Target trough IgG level of 8-10 g/L

  • Target trough IgG level 4-6 g/L

    Drug

    Target trough IgG level of 4-6 g/L

  • No history of recurrent or severe infections and total IgG level higher or equal at 4 g/L

    Drug

    If, during follow-up, the patient presents recurrent or severe infections and/or total IgG level less 4 g/L, crossover to group A or B

Treatment groups

80 Participants
are divided into 3 treatment groups
Group A: Group A IgG level 8-10 g/LActive comparator 1 intervention
Group B: Group B IgG level 4-6 g/LExperimental treatment 1 intervention
Group C: Group COther 1 intervention

Trial outcomes

Primary outcomes

1

Severe infections

Non-inferiority in the cumulative incidence of severe infections at 3 months between patients on Ig support with a target trough IgG level of 4-6 g/L (experimental group) versus a target trough IgG level of 8-10 g/L (standard of care group)

Time frame
From enrollment to 3 months after time of randomization

Secondary outcomes

1

Minor/Moderate infections rate

Rates of minor/moderate infection rates

Time frame
From enrollment to 12 monts after randomization
2

All infection rate

All infections rate

Time frame
From enrollment to 12 months after randomization

Other outcomes

1

Vaccinal response (optional)

For patients with no previous Ig support, we will examine the vaccinal response with specific antibody titers to tetanus.

Time frame
From vaccination (at enrollment) to 1 month after vaccination.
2

CM reactivation and infection rate

CMV reactivation and infection

Time frame
From enrollment to 12 months after randomization
3

Adverse events related to the administration of the Ig product

Adverse events related to the administration of the Ig product

Time frame
From enrollment to 12 months after randomization
4

Quality of life assessment, according to the EORTC-QLQ-C30

Quality of life assessment (SC and IV)

Time frame
From enrollment to 12 months after randomization

Sponsors and contacts

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