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Open Label, dosiseskaleringsundersøgelse for sikkerheden og effektiviteten af ​​STP705 hos voksne patienter med basalcellekarcinom

31. august 2026 opdateret af: Sirnaomics

En åben etiket, dosiseskaleringsundersøgelse for at evaluere sikkerheden og effektiviteten af ​​lokaliseret injektion af STP705 hos voksne patienter med basalcellekarcinom

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.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

32

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • Florida
      • Aventura, Florida, Forenede Stater, 33180
        • Center for Clinical and Cosmetic Research

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

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.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Sekventiel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 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.

Andre navne:
  • STP705 pulver til injektion
Eksperimentel: 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.

Andre navne:
  • STP705 pulver til injektion
Eksperimentel: 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.

Andre navne:
  • STP705 pulver til injektion
Eksperimentel: 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.

Andre navne:
  • STP705 pulver til injektion
Eksperimentel: 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.

Andre navne:
  • STP705 pulver til injektion
Eksperimentel: 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.

Andre navne:
  • STP705 pulver til injektion
Eksperimentel: 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.

Andre navne:
  • STP705 pulver til injektion

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of Participants With Histological Clearance of Treated Basal Cell Carcinoma Lesion at the End of Treatment (EOT)
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in Clinical Diameter of the Treated Basal Cell Carcinoma Lesion Over the 6 Week Treatment Period
Tidsramme: 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)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Mark Nestor, MD, PhD, Center for Clinical and Cosmetic Research

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

28. december 2020

Primær færdiggørelse (Faktiske)

9. februar 2023

Studieafslutning (Faktiske)

9. februar 2023

Datoer for studieregistrering

Først indsendt

9. december 2020

Først indsendt, der opfyldte QC-kriterier

9. december 2020

Først opslået (Faktiske)

17. december 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

24. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

31. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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