A Study to Evaluate Neoadjuvant Sonidegib Followed by Surgery or Imiquimod in the Management of Basal Cell Carcinoma (SONIB)
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ClinicalTrials.gov Identifier: NCT03534947 |
Recruitment Status :
Recruiting
First Posted : May 23, 2018
Last Update Posted : March 17, 2023
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Condition or disease | Intervention/treatment | Phase |
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Basal Cell Carcinoma Basal Cell Carcinoma of Skin, Site Unspecified Skin Cancer Invasive Carcinoma | Drug: Sonidegib Drug: Imiquimod Procedure: Surgery Other: Best supportive care | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 10 participants |
Allocation: | Non-Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | This is a pilot study which will evaluate the efficacy and safety of short term neoadjuvant sonidegib followed by surgery or imiquimod in the management of basal cell carcinomas in cosmetically challenging locations, assessed by optical coherence tomography and histopathology. The data from this pilot study may lead to the design of larger scale trials of neoadjuvant targeted therapy with the aim to decrease the morbidity of surgical treatment and increase the probability of a curative resection in larger patient populations. |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Pilot Study to Evaluate Short Term Neoadjuvant Sonidegib Followed by Surgery or Imiquimod in the Management of Basal Cell Carcinomas in Cosmetically Challenging Locations |
Actual Study Start Date : | July 23, 2019 |
Estimated Primary Completion Date : | September 2023 |
Estimated Study Completion Date : | September 2023 |

Arm | Intervention/treatment |
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Experimental: Sonidegib followed by imiquimod
Sonidegib 200mg taken orally once a day for 12 weeks. COMPLETE OR PARTIAL RESPONSE WITH SUPERFICAL REMNANT LESION For patients with a complete response or a partial response resulting in a superficial lesion, treatment with topical imiquimod for 5 days a week for 6 weeks will be prescribed.
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Drug: Sonidegib
Sonidegib is a selective and orally bioavailable Smoothened (Smo) antagonist. The dose will be 200mg taken once a day for 12 weeks.
Other Names:
Drug: Imiquimod Imiquimod is an immune response modifier that promotes NF-kappa-B-mediated secretion of pro-inflammatory cytokines, chemokines and other mediators. These immune responses produce cytotoxic effects that are antiproliferative and anti-tumour. Imiquimod treatment requires an extended treatment period of 6 weeks for superficial BCC. Imiquimod is an option for the treatment of small, low-risk superficial BCC when surgery, curettage or cryotherapy are inappropriate. Treatment with imiquimod will be for 5 days a week for a total of 6 weeks.
Other Name: Aldara |
Experimental: Sonidegib followed by surgery
Sonidegib 200mg taken orally once a day for 12 weeks. PARTIAL RESPONSE WITH REMNANT INVASIVE LESION For patients with a no change on BCC size / depth or patients with a partial response but a remaining invasive lesion, will have surgical excscion of the remaining lesion.
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Drug: Sonidegib
Sonidegib is a selective and orally bioavailable Smoothened (Smo) antagonist. The dose will be 200mg taken once a day for 12 weeks.
Other Names:
Procedure: Surgery Although most BCCs are amenable to surgery, excision of large tumours in aesthetically sensitive sites may compromise function or cosmesis. Patients whose BCC has not shrunk in size or depth following 12 weeks of sonidegib will undergo surgical excision of the remaining tumour.
Other Name: Excision of remnant invasive basal cell carcinoma |
Sonidegib then best supportive care
Sonidegib 200mg taken orally once a day for 12 weeks. PROGRESSIVE DISEASE Patients with lesions that have progressed in size and/or depth will receive the best supportive care deemed appropriate by the treating clinician. This may be surgery, imiquimod, a clinical trial treatment, radiotherapy or any combination of these interventions.
|
Drug: Sonidegib
Sonidegib is a selective and orally bioavailable Smoothened (Smo) antagonist. The dose will be 200mg taken once a day for 12 weeks.
Other Names:
Other: Best supportive care Patients with lesions that have progressed in size and/or depth will receive the best supportive care deemed appropriate by the treating clinician. This may be surgery, imiquimod, a clinical trial treatment, radiotherapy or any combination of these interventions |
- Neoadjuvant treatment response determined by optical coherence tomography [ Time Frame: 12 weeks ]The size and spread of abnormal skin structures associated with basal cell carcinoma detected by optical coherence tomography.
- Neoadjuvant treatment response determined by histopathology [ Time Frame: 12 weeks ]The size and spread of basal cell carcinoma tumour in a biopsy taken from the known worse affected area of disease demonstrated by histopathologic analysis.
- Histologic response to neoadjuvant treatment in basal cell carcinoma sub types [ Time Frame: 12 weeks ]The amount and spread of basal cell carcinoma tumour cells and structures detected at histopathology analysis in nodular and in infiltrative sub types of BCC.
- Response to neoadjuvant treatment in basal cell carcinoma sub types measured with optical coherence tomography. [ Time Frame: 12 weeks ]The amount and spread of basal cell carcinoma tumour cells and structures detected at histopathology analysis in nodular and in infiltrative sub types of BCC.
- Recurrence rate [ Time Frame: 6 and 12 months after surgery or at the end of 6 weeks of treatment with imiquimiod. ]The number of patients who have a recurrence of basal cell carcinoma at the original site of disease after having surgery or 6 weeks of topical treatment with imiquimod.
- Drug related adverse reactions [ Time Frame: 12 weeks ]The proportion of patients experiencing any adverse drug reactions graded according to CTCAE version 4.
- Discontinuation of sonidegib due to adverse reactions [ Time Frame: 12 weeks ]The proportion of patients who discontinue sonideigb because of adverse drug reactions.
- Quality of life based on SKINDEX-16 [ Time Frame: Weeks 12 and 18 and months 6 and 12. ]The scores obtained from the validated SKINDEX-16 quality of life questionnaire compared to baseline.
- Patient rated cosmetic outcome after neoadjuvant treatment followed by surgery [ Time Frame: Week 12 ]Scores from a 3 likert scale questions assessing the patient's agreement with statements about the appearance of their surgical scar for patients who need surgery after neoadjuvant treatment.
- Surgeon rated cosmetic outcome after neoadjuvant treatment followed by surgery [ Time Frame: Week 12 ]Scores from a 3 likert scale questions assessing the surgeon's agreement with statements about the appearance of their surgical scar for patients who need surgery after neoadjuvant treatment.
- Patient rated cosmetic outcome after neoadjuvant treatment [ Time Frame: Week 12 ]Scores from a 3 likert scale questions assessing the patient's agreement with statements about the appearance of the remmant BCC area for patients who did not need surgery after neoadjuvant treatment.
- Surgeon rated cosmetic outcome after neoadjuvant treatment [ Time Frame: Week 12 ]Scores from a 3 likert scale questions assessing the surgeons's agreement with statements about the appearance of the remmant BCC area for patients who did not need surgery after neoadjuvant treatment.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- ≥18 years of age.
- Written informed consent.
- Histologically confirmed, resectable, invasive basal cell carcinoma.
- Site and size of BCC considered to be in a cosmetically challenging position for surgery.
- Patient has expressed concerns of the cosmetic outcome of surgery.
- Eastern Cooperative Oncology Group (ECOG) performance status ≤2.
- Ability to swallow and retain oral medication.
- Anticipated life expectancy of > 12 months.
- Adequate organ function as demonstrated by blood tests.
- Willing to abstain from blood donations for 20 months from the last dose of sonidegib.
- Men with female partner of childbearing potential to use effective contraception from 14 days prior to study treatment until 6 months after the last dose.
- Female patients with active contraception or no menstrual cycle for >12 months
Exclusion Criteria:
- Inoperable basal cell carcinoma tumours.
- A concurrent cancer diagnosis requiring any systemic anti-cancer therapy.
- Serious or unstable pre-existing medical conditions or other conditions or laboratory abnormalities that could interfere with the patient's safety, consent, or compliance.
- History of malabsorption or other conditions that would interfere with the absorption of sonidegib.
- Known psychiatric or substance abuse disorders that would interfere with cooperation and compliance with the requirements of the trial.
- Prior treatment with hedgehog pathway inhibitors.
- Concomitant medications that may result in increased or decreased bioavailability of sonidegib.
- Patients with neuromuscular disorders (e.g. inflammatory myopathies, muscular dystrophy, rhabdomyolysis, amyotrophic lateral sclerosis and spinal muscular atrophy) due to an increased risk of muscle toxicity with sonidegib.
- Male patients expecting to father children or donate sperm during the 12 weeks of sonidegib treatment and for a further 6 months from the end of treatment.
- Pregnant or breastfeeding women

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03534947
Contact: Pascale Guitera, MD PhD | +61299117296 | pascale.guitera@melanoma.org.au |
Australia, New South Wales | |
Melanoma Institute Australia | Recruiting |
North Sydney, New South Wales, Australia, 2060 | |
Contact: Pascal Guitera, MD PhD +61299117296 pascale.guitera@melanoma.org.au | |
Principal Investigator: Pascale Guitera |
Study Director: | Pascale Guitera, MD PhD | Melanoma Institute Australia |
Responsible Party: | Melanoma Institute Australia |
ClinicalTrials.gov Identifier: | NCT03534947 |
Other Study ID Numbers: |
MIA2017/CT/220 HREC file number 18/087 ( Other Identifier: Human Research Ethics Committee ) |
First Posted: | May 23, 2018 Key Record Dates |
Last Update Posted: | March 17, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Neoadjuvant Sonidegib |
Carcinoma Carcinoma, Basal Cell Neoplasms, Glandular and Epithelial Neoplasms by Histologic Type Neoplasms Neoplasms, Basal Cell |
Imiquimod Adjuvants, Immunologic Immunologic Factors Physiological Effects of Drugs Antineoplastic Agents Interferon Inducers |