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STP705 在成年基底细胞癌患者中的安全性和有效性的开放标签剂量递增研究

2026年8月31日 更新者:Sirnaomics

一项开放标签、剂量递增研究,以评估成人基底细胞癌患者局部注射 STP705 的安全性和有效性

This phase 2, open label, dose escalation study is designed to evaluate the safety, tolerability and efficacy of various doses of STP705 administered as localized injection in patients with Basal Cell Carcinoma (BCC).

Goals:

  • To determine the safe and effective recommended dose of STP705 for the treatment of basal cell carcinoma.
  • Analysis of biomarkers common to BCC formation pathway including TGF-β1 and COX-2.

研究概览

地位

完全的

干预/治疗

详细说明

Basal cell carcinoma occurs most often on areas of the skin that are exposed to the sun, such as head and neck. The most commonly found clinical feature of Basal Cell Carcinoma (BCC) is an elevated tumor with a pearly and translucent margin and telangiectasia. The color may vary widely from nearly normal skin color to erythematous to violaceous and may also be pigmented. BCC may also resemble noncancerous skin conditions such as eczema or psoriasis. The majority of these cancers occur on areas of skin that are regularly exposed to sunlight or other ultraviolet radiation.

The STP705 drug substance (STP705) is composed of two siRNA oligonucleotides, targeting the expression of TGF-β1 and Cox-2 mRNA respectively. Along with the HKP-enhanced delivery system, the combination is expected to downregulate TGF-β1 and COX-2 expression resulting in the inhibition of tumor growth and provide an alternative non-invasive approach for the treatment of BCC.

This phase 2, open label, dose escalation study is designed to evaluate the safety, tolerability and efficacy of various doses of STP705 administered as localized injection in patients with BCC. This study seeks to establish a safe and effective recommended dose of STP705 for the treatment of BCC. The clinician will evaluate the change in tumor size at each treatment visit. At the End of Treatment visit, the residual tumor, or former tumor location, will be excised for analysis. Expression of biomarkers common to the BCC formation pathway, including TGF-β1 and COX-2, will be evaluated.

Safety and tolerability will be assessed by the number of incidence of adverse events (AEs) and serious adverse events (SAEs); the incidence of AEs and SAEs leading to discontinuation of trial medication; the incidence and severity of Local Skin Response (LSR); hypopigmentation and hyperpigmentation following treatment; and the tolerability of repeated localized administration of STP705 as assessed by investigator-evaluation of injection site reactions for all patients and within each cohort.

The study plans to enroll approximately 35 adult patients at up to 3 clinical sites in the United States. The 35 patients will be divided equally among 7 cohorts (30, 60, 90, 120, 180, 240, and 320 μg dose level) of 5 patients each.

研究类型

介入性

注册 (实际的)

32

阶段

  • 阶段2

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

    • Florida
      • Aventura、Florida、美国、33180
        • Center for Clinical and Cosmetic Research

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria: Subjects are required to meet all of the following criteria for enrollment into the study:

  1. Male or female adult ≥ 18 years of age.
  2. Primary, histologically confirmed trunk or extremity (non-peri-orbital/-anogenital/-facial/-scalp) basal cell carcinoma lesion suitable for excision with a minimum diameter of 0.5 cm and with a maximum diameter of 2.0 cm.
  3. Histological diagnosis made no more than 6 months prior to the screening visit.
  4. Histological biopsy removed ≤25% of the original volume of the target lesion.
  5. No other dermatological disease in the BCC target site or surrounding area, which in the opinion of the investigator, could interfere with the study.
  6. Willing to refrain from using non-approved lotions or creams on the target site and surrounding area during the treatment period.
  7. Willing to refrain from exposure to excessive direct sunlight or ultraviolet light and to avoid the use of tanning parlors for the duration of the study.
  8. Laboratory values for the tests (listed in the Study Schedule) within the reference ranges as defined by the central laboratory, or "out of range" test results that is clinically acceptable to the investigator. Ability to follow study instructions and likely to complete all study requirements.
  9. Written informed consent obtained, including consent for tissue to be examined and stored by the Central Histology Lab.
  10. Written consent to allow photographs of the target BCC lesion to be used as part of the study data and documentation.
  11. For females of childbearing potential, a negative pregnancy test at screening and using an acceptable form of birth control (oral / implant/ injectable/ transdermal contraceptives, intrauterine device, condom, diaphragm, abstinence, or a monogamous relationship with a partner who has had a vasectomy).

Exclusion Criteria:

  1. Pregnant or lactating.
  2. Presence of known or suspected systemic cancer.
  3. Histological evidence of SCC, or any other non-BCC tumor in the biopsy specimen.
  4. Histological evidence of infiltrative or other aggressive histological subtype growth patterns in the biopsy specimen.
  5. History of recurrence of the target BCC lesion.
  6. Evidence of dermatological disease or confounding skin condition with in 2 cm margin of the target BCC lesion, e.g., SCC, actinic keratosis, rosacea, psoriasis, atopic dermatitis, eczema, xeroderma pigmentosa.
  7. Concurrent disease or treatment that suppresses the immune system;
  8. Patients with baseline QTC > 480 msec using Frederica's formula.
  9. Chronic medical condition that in the judgment of the investigator(s) would interfere with the performance of the study or would place the patient at undue risk.
  10. Known sensitivity to any of the ingredients in the study medication.
  11. Use of a tanning beds or other excessive or prolonged exposure to ultraviolet light or direct sunlight during the study.
  12. Treatment with systemic chemotherapeutic agents within the 6 months prior to the screening visit.
  13. Use of systemic retinoids within the 6 months prior to the screening period.
  14. Treatment with systemic immunomodulators or immunosuppressants within the 6 months prior to the screening period.
  15. Use of topical immunomodulators within 2 cm of the target BCC lesion within the 4 weeks prior to the screening period.
  16. Treatment with the following topical agents within 2 cm of the target BCC lesion within the 4 weeks prior to the screening visit: amino-levulinic acid, 5-fluorouracil, corticosteroids, retinoids, diclofenac, ingenol mebutate, or imiquimod.
  17. Treatment with liquid nitrogen, surgical excision (excluding diagnostic incisional biopsy) or curettage within 2 cm of the target BCC lesion during the 4 weeks prior to the screening visit.
  18. Evidence of current chronic alcohol or drug abuse.
  19. Current enrollment in an investigational drug or device study or participation in such a study within 4 weeks of the screening visit.
  20. In the investigator's opinion, evidence of unwillingness, or inability to follow the restrictions and requirements of the protocol and complete the study.
  21. Taking any other investigational product within 1 month of first dose of STP705.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:非随机化
  • 介入模型:顺序分配
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:Cohort A: STP705 30 μg dose

Cohort A: STP705 30 μg dose, localized injection, given once a week for 6 weeks

Dry powder for intra-and peri-lesional injection.

其他名称:
  • STP705注射用粉针
实验性的:Cohort B: STP705 60 μg dose

Cohort B: STP705 60 μg dose, localized injection, given once a week for 6 weeks

Dry powder for intra-and peri-lesional injection.

其他名称:
  • STP705注射用粉针
实验性的:Cohort C: STP705 90 μg dose

Cohort C: STP705 90 μg dose, localized injection, given once a week for 6 weeks

Dry powder for intra-and peri-lesional injection.

其他名称:
  • STP705注射用粉针
实验性的:Cohort D: STP705 120 μg dose

Cohort D: STP705 120 μg dose, localized injection, given once a week for 6 weeks

Dry powder for intra-and peri-lesional injection.

其他名称:
  • STP705注射用粉针
实验性的:Cohort E: STP705 180 μg dose

Cohort E: STP705 180 μg dose, localized injection, given once a week for 6 weeks

Dry powder for intra-and peri-lesional injection.

其他名称:
  • STP705注射用粉针
实验性的:Cohort F: STP705 240 μg dose

Cohort F: STP705 240 μg dose, localized injection, given once a week for 6 weeks

Dry powder for intra-and peri-lesional injection.

其他名称:
  • STP705注射用粉针
实验性的:Cohort G: STP705 320 μg dose

Cohort G: STP705 320 μg dose, localized injection, given once a week for 6 weeks

Dry powder for intra-and peri-lesional injection.

其他名称:
  • STP705注射用粉针

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Proportion of Participants With Histological Clearance of Treated Basal Cell Carcinoma Lesion at the End of Treatment (EOT)
大体时间:6 weeks

Histological clearance (HC) will be defined as the absence of detectable evidence of BCC tumor cell nests as determined by central pathology review.

6 weeks

次要结果测量

结果测量
措施说明
大体时间
Change in Clinical Diameter of the Treated Basal Cell Carcinoma Lesion Over the 6 Week Treatment Period
大体时间:End of Treatment (EOT) visit (Week 6)

A baseline assessment of lesion clinical diameter will be made by investigator at T1 (first visit). The change in size from baseline to the End of Treatment (EOT) visit (Week 6) will be reported.

End of Treatment (EOT) visit (Week 6)

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

调查人员

  • 首席研究员:Mark Nestor, MD, PhD、Center for Clinical and Cosmetic Research

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2020年12月28日

初级完成 (实际的)

2023年2月9日

研究完成 (实际的)

2023年2月9日

研究注册日期

首次提交

2020年12月9日

首先提交符合 QC 标准的

2020年12月9日

首次发布 (实际的)

2020年12月17日

研究记录更新

最后更新发布 (实际的)

2026年9月24日

上次提交的符合 QC 标准的更新

2026年8月31日

最后验证

2026年8月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

是的

研究美国 FDA 监管的设备产品

不

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