Publications by authors named "Anne L Chang"

Background: Dermatoporosis (DP) is a condition associated with thinning skin layers and resultant fragility. Much of the thinning is related to fibroblast dysfunction, production of destructive inflammatory cytokines, breakdown of the extracellular matrix (ECM), and weakening of the dermo-epidermal junction. A major contributor to this change in the ECM milieu, previously under-considered, is cellular senescence, particularly involving the papillary dermal fibroblasts.

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Importance: Response to programmed death 1 (PD-1) inhibitors has been associated with programmed death ligand 1 (PD-L1) expression levels in several cancers, but PD-L1 expression and its clinical significance in basal cell carcinoma (BCC) are unknown to date.

Objective: To assess PD-L1 expression in treatment-naive and treated BCCs.

Design, Setting, And Participants: This investigation was a cross-sectional study at a single academic tertiary referral center.

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Background: Data lacks to guide treatment of regionally metastatic cutaneous head and neck squamous cell carcinoma (HNSCC).

Methods: We conducted a retrospective review of 80 patients treated for regionally metastatic cutaneous HNSCC. The effect of various clinicopathologic variables on overall survival (OS) was investigated, in addition to outcomes by treatment modality.

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While much is known about genes that promote aging, little is known about genes that protect against or prevent aging, particularly in human skin. The main objective of this study was to perform an unbiased, whole transcriptome search for genes that associate with intrinsic skin youthfulness. To accomplish this, healthy women (n = 122) of European descent, ages 18-89 years with Fitzpatrick skin type I/II were examined for facial skin aging parameters and clinical covariates, including smoking and ultraviolet exposure.

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Because many patients with unresectable basal cell carcinoma (BCC) are aged ≥65 years, this study explores the efficacy and safety of vismodegib in these patients with locally advanced (la) or metastatic (m) basal cell carcinoma (BCC) in the ERIVANCE BCC trial and the expanded access study (EAS).We compared patients aged ≥65 years to patients aged <65 years taking vismodegib 150 mg/day, using descriptive statistics for response and safety. Patients aged ≥65 years (laBCC/mBCC) were enrolled in ERIVANCE BCC (33/14) and EAS (27/26).

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Background: Aberrant activation of the Hedgehog (Hh) pathway is a key driver in the pathogenesis of basal cell carcinomas (BCCs), including patients with BCC nevus syndrome (BCCNS). It is unclear whether BCCs arising in patients with BCCNS respond differently to vismodegib than in patients without BCCNS. We examined the best overall response rate (BORR) and adverse events (AEs) of vismodegib in patients with advanced BCC (aBCC) with and without BCCNS.

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Background: The hedgehog pathway inhibitor sonidegib demonstrated meaningful tumor shrinkage in more than 90% of patients with locally advanced basal cell carcinoma (BCC) or metastatic BCC in the BCC Outcomes with LDE225 Treatment study.

Objective: This report provides long-term follow-up data collected up to 12 months after the last patient was randomized.

Methods: In this multicenter, randomized, double-blind phase II study, patients were randomized 1:2 to sonidegib 200 or 800 mg.

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Importance: Smoothened inhibitors (SIs) are a new type of targeted therapy for advanced basal cell carcinoma (BCC), and their long-term effects, such as increased risk of subsequent malignancy, are still being explored.

Objective: To evaluate the risk of developing a non-BCC malignancy after SI exposure in patients with BCC.

Design, Setting, And Participants: A case-control study at Stanford Medical Center, an academic hospital.

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Background: Estimates of an individual's cumulative ultraviolet (UV) radiation exposure can be useful since ultraviolet radiation exposure increases skin cancer risk, but a comprehensive tool that is practical for use in the clinic does not currently exist. The objective of this study is to develop a geographically-adjusted tool to systematically estimate an individual's self-reported cumulative UV radiation exposure, investigate the association of these estimates with skin cancer diagnosis, and assess test reliability.

Methods: A 12-item online questionnaire from validated survey items for UV exposure and skin cancer was administered to online volunteers across the United States and results cross-referenced with UV radiation indices.

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Importance: Tumor resistance is an emerging problem for Smoothened (SMO) inhibitor-treated metastatic basal cell carcinoma (BCC). Arsenic trioxide and itraconazole antagonize the hedgehog (HH) pathway at sites distinct from those treated by SMO inhibitors.

Objective: To determine whether administration of intravenous arsenic trioxide and oral itraconazole in patients with metastatic BCC is associated with a reduction in GLI1 messenger RNA expression in tumor and/or normal skin biopsy samples.

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Purpose: To assess the tumor response to the smoothened (SMO) inhibitor, sonidegib (LDE225), in patients with an advanced basal cell carcinoma (BCC) resistant to treatment with vismodegib (GDC0449).

Experimental Design: Nine patients with an advanced BCC that was previously resistant to treatment with vismodegib were given sonidegib in this investigational, open-label study. Tumor response was determined using the response evaluation criteria in solid tumors.

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Introduction: Basal cell carcinoma (BCC) is the most common form of skin cancer; however, few data are available relating to patients' perspectives and experiences of this disease. This study explored the spectrum of BCC symptoms and their impact by disease stage to determine how BCC affects the overall health-related quality of life (HRQL) of patients.

Methods: This study comprised a cross-sectional, qualitative approach involving telephone interviews with patients with BCC who had been divided into two groups: group 1 (G1), patients with stage 1, non-advanced BCC (and of superficial or nodular histology); and group 2 (G2), patients with locally advanced or metastatic BCC.

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Aberrant Shh signaling promotes tumor growth in diverse cancers. The importance of Shh signaling is particularly evident in medulloblastoma and basal cell carcinoma (BCC), where inhibitors targeting the Shh pathway component Smoothened (Smo) show great therapeutic promise. However, the emergence of drug resistance limits long-term efficacy, and the mechanisms of resistance remain poorly understood.

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Background: Patients with advanced basal cell carcinoma have limited treatment options. Hedgehog pathway signalling is aberrantly activated in around 95% of tumours. We assessed the antitumour activity of sonidegib, a Hedgehog signalling inhibitor, in patients with advanced basal cell carcinoma.

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Background: Primary analysis from the pivotal ERIVANCE BCC study resulted in approval of vismodegib, a Hedgehog pathway inhibitor indicated for treatment of adults with metastatic or locally advanced basal cell carcinoma (BCC) that has recurred after surgery or for patients who are not candidates for surgery or radiation.

Objective: An efficacy and safety analysis was conducted 12 months after primary analysis.

Methods: This was a multinational, multicenter, nonrandomized, 2-cohort study in patients with measurable and histologically confirmed locally advanced or metastatic BCC taking oral vismodegib (150 mg/d).

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The National Research Council of the National Academies defines elder mistreatment as: (1) intentional actions that cause harm or create serious risk of harm (whether or not harm is intended) to a vulnerable elder by a caregiver or other person who stands in a trust relationship to the elder; or (2) failure by a caregiver to satisfy the elder's basic needs or to protect the elder from harm. Estimates of the prevalence of elder abuse have ranged from 2.2% to 18.

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Importance: Vismodegib is a targeted agent recently approved for treating patients who develop recurrent or locally advanced basal cell carcinoma (BCC), and will inevitably be integrated into existing therapy for advanced BCC as it becomes increasingly used. Improved understanding of how vismodegib interacts with other treatment modalities, including radiotherapy, would help optimize multidisciplinary therapy and clinical outcomes.

Observations: We report 2 cases of recurrent, advanced BCC treated from April 1, 2012, through October 31, 2014, with concurrent radiotherapy and vismodegib.

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Smoothened inhibitors represent the first class of targeted drugs approved for use in advanced and metastatic basal cell carcinoma. For many patients with limited treatment options, this drug class has led to significant clinical improvements, but is not without side effects. In this review, we outline the basic mechanism of smoothened inhibitors and the most commonly observed cutaneous and extracutaneous side effects.

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