跳至主要内容
临床试验/2023-505317-25-00
2023-505317-25-00招募中4 期

FAPi-PET imaging of in vivo early fistula healing in perianal Crohn’s disease: PERSIST study

Amsterdam UMC1 个研究点 分布在 1 个国家目标入组 10 人开始时间: 2023年7月28日最近更新:

试验速览

阶段
4 期
状态
招募中
发起方
入组人数
10
试验地点
1
主要终点
- Visual and quantitative 68Ga-FAPi-46 uptake measurements in and around the perianal fistula at baseline, at follow-up (T1) and the change over both time points

研究概览

简要总结

The feasibility of 68Ga-FAPi-46 PET-CT for fibroblast activation pattern visualization and quantification during early healing of perianal Crohn’s fistulas.

入排标准

年龄范围
18 years 至 64 years(18-64 Years)
接受健康志愿者

入选标准

  • Confirmed diagnosis of CD with previously or currently documented luminal inflammation (endoscopy and histopathology)
  • Complex perianal fistula, defined as either involving the upper two-third of the sphincter complex (i.e., high intersphincteric, high transsphincteric, suprasphincteric or extrasphincteric course of the fistula tract), having multiple external openings, are associated with pain or fluctuation suggesting a perianal abscess or are associated with a rectovaginal fistula or anorectal stricture or active rectal ulcers, with active drainage (fluid loss on gentle compression; perianal fistulas that were previously close but that reopened can be included).
  • Age 16 or older
  • Signed informed consent

排除标准

  • Patients with Ulcerative Colitis or IBD-U
  • Presence of impassible anal stricture
  • Superficial or rectovaginal fistula only
  • Patients with ongoing abdominal or undrained perianal abscesses after repeated examination-under-anesthesia with drainage by incision or seton placement
  • Patients with a seton in situ > 12 months
  • Patients with an ostomy
  • Enteric pathogens (such as Salmonella, Shigella, Yersinia, Campylobacter and C. difficile) detected by stool analysis within 2 weeks prior to enrollment or at screening
  • Active or planned pregnancy or lactation Patients previously exposed to two or more anti-TNFs
  • Previously unacceptable side effects or intolerance to all immunosuppressants (both thiopurines and methotrexate) Treatment with vedolizumab or ustekinumab within 30 days
  • Active or latent tuberculosis (screening according to national guidelines)
  • Cardiac failure in NYHA stage III-IV
  • History of demyelinating disease
  • Recent live vaccination (≤ 4 weeks)
  • Patients with ongoing acute/chronic infection (including but not limited to HIV, hepatitis B and C) with the exception of chronic herpes labialis or cervical HPV
  • Male patients with negative EBV serology
  • Patients who received any investigational drug in the past 30 days or 5 half-lives, whichever is longer
  • Patients with a history of colon cancer or colonic dysplasia, unless sporadic adenoma, which has been removed
  • A history of alcohol or illicit drug use that in the opinion of the principal investigator (PI) would interfere with study procedures
  • Patients with psychiatric problems that in the opinion of the PI would interfere with study procedures
  • Patients unable to attend all study visits
  • Participation in a medical intervention trial that interferes with this study in the opinion of the PI
  • Patients with a history of non-compliance with clinical study protocols

结局指标

主要结局

- Visual and quantitative 68Ga-FAPi-46 uptake measurements in and around the perianal fistula at baseline, at follow-up (T1) and the change over both time points

- Visual and quantitative 68Ga-FAPi-46 uptake measurements in and around the perianal fistula at baseline, at follow-up (T1) and the change over both time points

次要结局

  • - The best fitting kinetic model to quantify 68Ga-FAPi-46 pharmacokinetics and tracer uptake.
  • - The most suitable simplified quantitative measurement as a surrogate for the full kinetic model.
  • - The most simplified imaging procedure providing the quantitative measurement correlating to the full kinetic model.
  • - Correlate visual and quantitative 68Ga-FAPi-46 uptake measurements in and around the perianal fistula at baseline, at follow-up (week 2 or week 6 or combined) and the change over both time points with clinical and/or radiological response assessments mid- and end-of-treatment (i.e. week 9 and week 26, respectively).
  • - Correlate visual and quantitative 68Ga-FAPi-46 uptake measurements in and around the perianal fistula at baseline with clinical and MRI (and eventual endoscopy and pathology if available) parameters at baseline.

研究者

发起方
Amsterdam UMC
申办方类型
Hospital/Clinic/Other health care facility
责任方
Principal Investigator
主要研究者

Lieven Mulders, PhD fellow

Scientific

Amsterdam UMC

研究点 (1)

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