RecruitingPhase 1Phase 2NCT06619990

Study of XmAb942 in Healthy Participants and Participants With Ulcerative Colitis

A Phase 1, Randomized, Double-Blind, Placebo-Controlled Study in Healthy Participants Followed by a Randomized, Double-Blind, Placebo-Controlled Phase 2 Study in Participants With Moderate-To-Severe Active Ulcerative Colitis.


Sponsor

Xencor, Inc.

Enrollment

270 participants

Start Date

Oct 10, 2024

Study Type

INTERVENTIONAL

Conditions

Summary

Brief summary The Phase 1 study described herein will evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of XmAb942 in healthy volunteers (Parts A and B). Part C of this study will be a Phase 2 study to evaluate XmAb942 in participants with ulcerative colitis (UC).


Eligibility

Min Age: 18 YearsMax Age: 75 Years

Inclusion Criteria15

  • Parts A and B
  • Age 18-55
  • Must be in good health with no significant medical history
  • Clinical laboratory values within normal range
  • BMI 18-35 (inclusive)
  • Contraceptive use by men or women consistent with local regulations
  • Able and willing to provide written informed consent
  • Part C
  • Age 18-75
  • Must be in good health with no significant medical history
  • UC diagnosis ≥ 3 months prior to screening
  • Diagnosis of moderately to severely active UC as defined by a (MMS) ≥ 5, with a MES ≥ 2 and RBS ≥ 1
  • Evidence of UC extending ≥ 15 cm from the anal verge, as determined by screening colonoscopy
  • Must have inadequate response to, loss of response to, or intolerance to at least 1 of the conventional or advanced therapies of UC
  • Able and willing to provide written informed consent

Exclusion Criteria18

  • Parts A and B
  • Any physical or psychological condition that prohibits study completion
  • History of suicidal behavior or suicidal ideation
  • Heavy use of nicotine containing products
  • HIV, hepatitis B and hepatitis C positive
  • Cardiac arrhythmia, or clinically significant abnormal ECG
  • Active use of prescription medications within 14 days of Day -1
  • Active use of over-the-counter, or herbal medication within 7 days of Screening
  • Other investigational products within 30 days
  • Blood or plasma donation within 60 days
  • Pregnant or breastfeeding
  • Part C
  • Any physical or psychological condition that prohibits study participation
  • Diagnosis of Crohn disease, indeterminate colitis, indeterminate colitis, microscopic colitis, ischemic colitis, infectious colitis, radiation colitis, and diverticular disease associated with colitis.
  • Positive screen for Clostridium difficile (C. Difficile) toxins
  • HIV, hepatitis B and hepatitis C positive
  • Cardiac arrhythmia, or clinically significant abnormal ECG
  • Pregnant or breastfeeding

Interventions

BIOLOGICALXmAb942

Antibody

DRUGPlacebo

Placebo


Locations(40)

Xencor Investigative Site

Scottsdale, Arizona, United States

Xencor Investigative Site

Bradenton, Florida, United States

Xencor Investigative Site

Jacksonville, Florida, United States

Xencor Investigative Site

Kissimmee, Florida, United States

Xencor Investigative Site

Tampa, Florida, United States

Xencor Investigative Site

Raleigh, North Carolina, United States

Xencor Investigative Site

Denton, Texas, United States

Xencor Investigative Site

Houston, Texas, United States

Xencor Investigative Site

Kingwood, Texas, United States

Xencor Investigative Site

San Antonio, Texas, United States

Xencor Investigative Site

Wollongong, New South Wales, Australia

Xencor Investigative Site

South Brisbane, Queensland, Australia

Xencor Investigative Site

Joondalup, Western Australia, Australia

Xencor Investigative Site

Nedlands, Western Australia, Australia

Xencor Investigative Site

Sofia, Bulgaria

Xencor Investigative Site

Vancouver, British Columbia, Canada

Xencor Investigative Site

London, Ontario, Canada

Xencor Investigative Site

Scarborough Village, Ontario, Canada

Xencor Investigative Site

Zagreb, Croatia

Xencor Investigative Site

Tbilisi, Georgia

Xencor Investigative Site

Budapest, Hungary

Xencor Investigative Site

Chisinau, Moldova

Xencor Investigative Site

Wroclaw, Lower Silesian Voivodeship, Poland

Xencor Investigative Site

Sopot, Pomeranian Voivodeship, Poland

Xencor Investigative Site

Bydgoszcz, Poland

Xencor Investigative Site

Katowice, Poland

Xencor Investigative Site

Staszów, Poland

Xencor Investigative Site

Szczecin, Poland

Xencor Investigative Site

Warsaw, Poland

Xencor Investigative Site

Bucharest, District 1, Romania

Xencor Investigative Site

Cluj-Napoca, Romania

Xencor Investigative Site

Lutsk, Volyn Oblast, Ukraine

Xencor Investigative Site

Ivano-Frankivsk, Ukraine

Xencor Investigative Site

Kyiv, Ukraine

Xencor Investigative Site

Kyiv, Ukraine

Xencor Investigative Site

Lviv, Ukraine

Xencor Investigative Site

Lviv, Ukraine

Xencor Investigative Site

Uzhhorod, Ukraine

Xencor Investigative Site

Vinnytsia, Ukraine

Xencor Investigative Site

Zhytomyr, Ukraine

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NCT06619990


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