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

Recruiting
Conditions
Relapsing Multiple Sclerosis
Interventions
Other: No intervention
Registration Number
NCT06143514
Lead Sponsor
TG Therapeutics, Inc.
Brief Summary

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

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
Female
Target Recruitment
16
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

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Arm && Interventions
GroupInterventionDescription
Breast Milk CollectionNo interventionBreast 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.
Primary Outcome Measures
NameTimeMethod
Area Under the Milk Concentration-time Curve from Time 0 to Infinity (AUC0-inf) of BRIUMVI™Predose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and Day 90
Area Under the Milk Concentration-Time Curve from Time 0 to 24 Hours Post-Dose (AUC0-24) of BRIUMVI™Predose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and Day 90
Area Under the Milk Concentration-time Curve from Time 0 to the Last Measurable Observed Concentration (AUC0-last) of BRIUMVI™Predose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and Day 90
Maximum Observed Milk Concentration of BRIUMVI™ (Cmax)Predose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and Day 90
Time of Cmax (Tmax) of BRIUMVI™ in MilkPredose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and Day 90
Observed Milk Concentration of BRIUMVI™ at End of Dosing Interval (Ctrough) of BRIUMVI™Predose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and at exit Day 90
Secondary Outcome Measures
NameTimeMethod
Number of Infants with Adverse EventsFrom the signing the inform consent form up to approximately 3 months after the index infusion
Amount Excreted (Ae) of BRIUMVI™ in MilkPredose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and Day 90

Total amount of drug excreted in milk (mg) as: Σ(total drug concentration in each milk collection x milk volume in each milk collection)

Infant Dose (ID) of BRIUMVI™Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and at exit Day 90

Infant dose = Ʃ drug concentration in each milk collection multiplied by the expressed milk volume in each milk collection.

Fraction of Dose Excreted (Fe) in Milk of BRIUMVI™Predose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and Day 90

Fraction of dose excreted in milk calculated as Ae/Administered dose

Relative Infant Dose (RID) of BRIUMVI™Predose Day 1 and at multiple timepoints Post-dose Day 1, Day 2, Day 3, Day 7, Day 10, Day 14, Day 28, Day 60 and Day 90

Relative infant dose = infant dose milligrams/kilograms (mg/kg)/ \[Maternal Dose (mg)/Maternal Bodyweight (kg)\] multiplied by 100

Trial Locations

Locations (1)

PROVIDE Virtual Research Coordination Center

🇺🇸

Wilmington, North Carolina, United States

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