A Study Evaluating the Presence and Concentration of BRIUMVI™ (Ublituximab) in Breast Milk

NCT ID: NCT06143514

Last Updated: 2026-01-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

16 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-03-26

Study Completion Date

2026-06-30

Brief Summary

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The primary objective of the lactation study is to characterize the presence and concentration of BRIUMVI™ in breast milk among breastfeeding participants who receive BRIUMVI™ therapeutically for the treatment of relapsing forms of multiple sclerosis (RMS).

Detailed Description

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Conditions

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Relapsing Multiple Sclerosis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Breast Milk Collection

Breast milk will be collected of participants with relapsing forms of multiple sclerosis (RMS) who are receiving BRIUMVI™ therapeutically for up to 24 hours to determine concentration of BRIUMVI™ in milk samples.

No intervention

Intervention Type OTHER

No intervention

Interventions

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No intervention

No intervention

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Maternal Criteria:

* Participant has independently decided to be treated with BRIUMVI™ prior to providing consent to participate in the study
* Diagnosis of RMS, to include clinically isolated syndrome (CIS), relapsing-remitting multiple sclerosis (RRMS), and active secondary progressive multiple sclerosis (SPMS)
* Willing to breastfeed or pump regularly during the study period to maintain milk supply and exclusively pump breast milk for the 24-hour period of breast milk collection Day 1 post IV dose
* Plans to continue feeding infant breast milk at least throughout the duration of the study and is not weaning

Infant Criteria:

* Gestational age at delivery ≥35 weeks
* Birthweight \> 10th percentile
* Weight \> 10th percentile as reported by the mother at the time of enrollment

Exclusion Criteria

Maternal Criteria:

* Any active infection or other condition that would prevent the individual from breastfeeding
* History of breast implants, breast augmentation, or breast reduction surgery that significantly impacts breastfeeding or collection of milk from 1 or both breasts
* History of mastectomy
* Evidence of mastitis or any other significant active infection at Day 1 (pre-dose) that would prevent collection of milk from one or both breasts
* Current use of drugs known to transfer to the breast milk and with established or potential deleterious effects for the infant, including but not limited to aspirin (risk of Reye's syndrome), tetracyclines or fluoroquinolones

Infant Criteria:

\- Any abnormality noted or clinically significant medical condition, including cardiac, pulmonary, and liver disease, glucose instability, or active infection at the time of screening that, in the opinion of the investigator, may make implementation of the protocol or interpretation of the trial difficult or would put the infant at risk by participating in the study
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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TG Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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PROVIDE Virtual Research Coordination Center

San Francisco, California, United States

Site Status RECRUITING

PROVIDE Virtual Research Coordination Center

Smyrna, Georgia, United States

Site Status RECRUITING

PROVIDE Virtual Research Coordination Center

Wilmington, North Carolina, United States

Site Status RECRUITING

PROVIDE Virtual Research Coordination Center

Nashville, Tennessee, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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PROVIDE Virtual Research Coordination Center

Role: CONTACT

1-877-296-4411

Facility Contacts

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Role: primary

415-502-7209

Other Identifiers

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TG1101-RMS405

Identifier Type: -

Identifier Source: org_study_id

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