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基底細胞癌の成人患者における STP705 の安全性と有効性に関する非盲検用量漸増試験

2026年8月31日 更新者:Sirnaomics

基底細胞癌の成人患者におけるSTP705の局所注射の安全性と有効性を評価するための非盲検用量漸増研究

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.

調査の概要

状態

完了

条件

介入・治療

詳細な説明

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.

研究の種類

介入

入学 (実際)

32

段階

  • フェーズ2

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • Florida
      • Aventura、Florida、アメリカ、33180
        • Center for Clinical and Cosmetic Research

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

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.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:非ランダム化
  • 介入モデル:順次割り当て
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的: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.

他の名前:
  • STP705 注射用粉末
実験的: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.

他の名前:
  • STP705 注射用粉末
実験的: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.

他の名前:
  • STP705 注射用粉末
実験的: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.

他の名前:
  • STP705 注射用粉末
実験的: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.

他の名前:
  • STP705 注射用粉末
実験的: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.

他の名前:
  • STP705 注射用粉末
実験的: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.

他の名前:
  • STP705 注射用粉末

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Proportion of Participants With Histological Clearance of Treated Basal Cell Carcinoma Lesion at the End of Treatment (EOT)
時間枠: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

二次結果の測定

結果測定
メジャーの説明
時間枠
Change in Clinical Diameter of the Treated Basal Cell Carcinoma Lesion Over the 6 Week Treatment Period
時間枠: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)

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

協力者

捜査官

  • 主任研究者:Mark Nestor, MD, PhD、Center for Clinical and Cosmetic Research

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2020年12月28日

一次修了 (実際)

2023年2月9日

研究の完了 (実際)

2023年2月9日

試験登録日

最初に提出

2020年12月9日

QC基準を満たした最初の提出物

2020年12月9日

最初の投稿 (実際)

2020年12月17日

学習記録の更新

投稿された最後の更新 (実際)

2026年9月24日

QC基準を満たした最後の更新が送信されました

2026年8月31日

最終確認日

2026年8月1日

詳しくは

本研究に関する用語

キーワード

その他の研究ID番号

  • SRN-705-006

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

はい

米国FDA規制機器製品の研究

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。