A Retrospective Study on Epidemiological Characteristics of Chinese NF1 Patients in Real World (PROMISE)
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 2,000
- 试验地点
- 5
- 主要终点
- Determine the percentage of NF1 patients developed PN at the baseline.
研究概览
简要总结
Background/Rationale: Neurofibromatosis type 1 (NF1) affects about 1 in every 3000 people worldwide. Globally, 30~50% NF1 patients will develop plexiform neurofibromas (PNs), which grow rapidly in early childhood and can cause disfigurement, motor dysfunction, pain, airway dysfunction, visual impairment and bladder and bowel dysfunction. This systemic disease imposes a heavy psychosomatic and financial burden on patients and their caregivers. In NF1 patients, the lifetime risk of MPNST developed from PN is 8% to 13%. The mean age for NF1-associated death was approximately 20 years lower than that for the general population. Limited epidemiological and clinical data of Chinese NF1 patients is available to date. And the treatment pattern of Chinese NF1-PN patients is also unknown.
Objectives and Hypotheses: It is a descriptive study without formal hypothesis. The primary objective of this study is determining the percentage of NF1 patients who develop PN. The secondary objectives of this study include describing the clinical characteristics, tumor progression and treatment pattern of NF1-PN. The exploratory objective is exploring the epidemiological characteristics of other NF1 manifestations.
Methods:
Study design: The study is a retrospective multi-center chart review study. Data Source(s): All the data will be collected by CRF from inpatient and outpatient electronic medical records in every study site from January 1, 2019 to December 31, 2022.
Study Population: Patients who attended the study sites between January 1, 2019 - December 31, 2022 and were diagnosed with NF1 were included in this study. Statistical Analysis: This study is purely descriptive without any formal hypotheses.
Missing data for baseline characteristics will be assessed and addressed as a categorical variable with a level for missingness. All reported measures will be summarized in the study tables. Point estimates and their 95% CIs will be presented in the final analyses.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Retrospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients who attended the study sites between January 1, 2019, and December 31,
- •Patients who were diagnosed with NF1(recorded with the text of type I neurofibromatosis) based on National Institutes of Health (NIH) NF1 consensus.
排除标准
- •Patients combined with other malignant tumors
结局指标
主要结局
Determine the percentage of NF1 patients developed PN at the baseline.
时间窗: 2022.12.31
The clinical diagnosis of PN mainly depends on the clinical manifestations and imaging of NF1 patients. Superficial PN has a clear clinical manifestation. It refers to a proliferation of cells in the nerve sheath which involves multiple nerve fascicles, forming a large pendulous mass with skin pigmentation on the surface. PN in vivo often has no significant clinical features and requires imaging examination, like MRI. Patients diagnosed with PN are recorded with the text of plexiform neurofibromas in the chart. The percentage of patients diagnosed with PN with imaging and the percentage of patients diagnosed with PN without imaging will be calculated.
次要结局
- Tumor progression of NF1-PN(2022.12.31)
- Clinical characteristics of NF1-PN:(2022.12.31)
- Treatment pattern of NF1-PN:(2022.12.31)