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Although hydroxychloroquine (HCQ) is used to treat systemic lupus erythematosus (SLE), it is associated with retinal toxicity. Early diagnosis can prevent the further progression of HCQ-associated retinopathy by discontinuing HCQ treatments. This study aimed to evaluate the early diagnostic parameters in patients with SLE treated with HCQ and identify the best approach using multifocal electroretinography (mfERG) and swept-source optical coherence tomography (SS-OCT) to reflect subclinical retinal toxicity.

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Targeting autophagy plus high-dose CDK4/6 inhibitors in advanced HR+HER2- breast cancer: A phase 1b/2 trial.

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December 2024

Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China. Electronic address:

Background: The unmet needs of managing patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) breast cancer who progress after cyclin-dependent kinase (CDK)4/6 inhibitor (CDK4/6i) treatment remain unclarified.

Methods: This was a phase 1b/2, single-arm, open-label study that enrolled 29 patients with HR+/HER2- breast cancer who experienced first-line palbociclib treatment failure. The primary endpoint was the incidence of dose-limiting toxicity (DLT).

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Purpose: To report a case of pentosan polysulfate sodium (PPS) maculopathy with cystoid macular edema (CME) with relatively low cumulative PPS exposure and a history of concurrent hydroxychloroquine use.

Observations: A 46-year-old female was treated with PPS daily for 10 years, and hydroxychloroquine intermittently over a span of five years, actively taking hydroxychloroquine for a sum of three years during PPS therapy. Despite a low risk for toxicity based on the cumulative exposure to either medication, fundoscopic examination and multimodal imaging revealed severe PPS maculopathy with CME two and a half years post-PPS cessation.

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Hydroxychloroquine retinopathy in a 23-year-old male.

Retin Cases Brief Rep

December 2024

Retinal Disorders and Ophthalmic Genetics Division, Stein Eye Institute, University of California Los Angeles, David Geffen School of Medicine at UCLA, Los Angeles, California, United States.

Purpose: To report a case of hydroxychloroquine (HCQ) retinopathy after long-term exposure in a 23-year-old male.

Methods: Multimodal imaging including fundus photography, fundus autofluorescence (FAF), spectral domain optical coherence tomography (SD-OCT), and en face OCT were performed, in addition to functional testing with full-field electroretinography (ERG) and Humphrey visual field (HVF).

Results: A 23-year-old man with a history of juvenile systemic lupus erythematosus and HCQ treatment for 13 years at a dosage of 200 mg/d (cumulative dose: 949 grams) presented to the retinal clinic (DS).

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