Superficial Basal Cell Carcinoma Clinical Trial
Official title:
An Open-Label Study to Evaluate the Safety and Efficacy of EscharEx (EX-02) in the Treatment of Basal Cell Carcinoma
This study will be a multicenter, prospective, open label, one-arm study intended to assess the Safety and Efficacy of EscharEx (EX-02) in the treatment of Basal Cell Carcinoma. In patients with one primary superficial or nodular basal cell carcinoma lesion with a diameter of 5-10mm (Histologically confirmed BCC) located on the trunk or upper extremities (not including the hands), with well-defined borders and no previous radiation therapy.
32 patients are planned to be enrolled into the study from 2-4 US sites. This study will be an Open-Label Study where all patients will be treated with the investigational product EX-02. Enrollment will be conducted in 2 stages. In the first stage, a group of sixteen (16) patients will be enrolled and treated as detailed below for group 1. Safety results from the first group of patients will be evaluated by the sponsor and by the DSMB. Based on the safety results and DSMB recommendations, the second group of patients will include additional 16 patients that will be enrolled and treated, as detailed below for group 2. All patients will undergo complete surgical excision at the end of the 8 weeks post treatment period and will be followed up until complete clearance is confirmed by biopsy and the wound is closed. Each patient will go through the following periods during the trial: 1. Screening and enrollment period (up to 2 weeks, visit#1): Screening and enrollment duration will be up to 2 weeks and will include the following: signing informed consent, recording demographics, medical history and concomitant medications, vital signs, physical examination, lesion photography and assessments, and shave biopsy. Only patients with histologically confirmed BCC can be enrolled and start treatment. 2. Treatment Period (1-3 weeks, 10-14 visits- visits#2-15) Group 1: 16 patients- 8 patients with superficial BCC and 8 patients with nodular BCC will undergo 7 treatment applications, once every other day (2 weeks). Group 2: Based on safety results of stage 1 and following DSMB review and recommendations, 16 additional patients (8 patient with superficial BCC and 8 patients with nodular BCC) will undergo 7 daily applications. In case of tolerability issues a rescue therapy of either 7 applications every other day (same as in group 1) or 1 day of drug holiday after which daily treatment will continue, will be allowed as needed. In both groups, EX-02 5% will be topically applied on the lesion's surface including a margin of 5-10mm, for 8-12 hours each application. All pre application assessments and applications s will be performed at the clinic. Dressing removal will be completed by the patient (by a family member/caregiver) at the patient's home. Between applications, the lesion will be covered by hydrocolloid dressing (applied by the patient or by a family member/caregiver). The treatment area including the skin around the lesion will be photographed before each application at the clinic and assessment of AEs will be performed by the investigator before application and post dressing removal. This period will include 10 on-site visits, 7 visits for pre application assessments and drug application (visits# 2, 4, 6, 8,10, 12, 14) and 3 on-site visits for post dressing removal and assessments. The following three (3) post dressing removal visits will be performed at the clinic: after first application (post dressing removal) (visit#3), after second application (post dressing removal) (visit#5) and after last application (post dressing removal) (Visit#15). Additional 4 visits post dressing removal (visits#7, 9, 11 and 13) are optional and will be completed only if needed per PI discretion. These optional visits, if performed, can be performed either at the clinic or remotely (by an IRB approved HIPAA compliance telecommunication). Local lab tests will be obtained on visits#1(screening) and visit#15. 3. Post Treatment period (8 weeks, 4 bi-weekly remote or on site visits, visit#16-19): Post completion of treatment course, the raw bed and the surrounding skin will be treated toward healing of the skin by Vaseline petrolatum or Aquaphor. Once in 2 weeks the treated area will be photographed, the healing status of the wound and adverse events will be assessed. Assessments on first 3 bi-weekly visits, visit#16- 18 will be performed either on site or remotely (via IRB approved, HIPAA compliance telecommunication), based on physician discretion. The 4th bi-weekly visit i.e. Visit #19 will be performed on site. At the end of the 8 weeks post treatment period, on the 4th bi-weekly visit (visit#19), all patients will undergo complete excision, including a lesion margin of 4-5 mm. The specimen will be sent to dermapathologist for histological clearance examination. 4. Follow Up (until complete clearance and wound closure is achieved, at least one visit): During the follow up stage, patients will be followed and treated with standard of care. Follow up visit # 20 will be performed once biopsy results are available (from the excision performed on visit#19). Results will be recorded in the eCRF. In cases that margins are not clear, patients will undergo additional excisional procedure per standard of care. Histological results from any additional procedure will be recorded. In cases that margin are clear but additional procedure for wound closure is required, the procedure will be recorded. AEs will be monitored until complete clearance of margins is histologically confirmed and until wound is assessed as closed (and sutured were removed). The total duration of the study for each participating subject is approximately 14-17 weeks: Screening periods (1-2 weeks) + Treatment (1-3 weeks) + Follow up post treatment and histopathology 8 weeks post treatment + Follow up post-surgical excision (approximately 4 weeks- until wound closure). ;
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