Acne is common among adolescents and adults. Guidelines for treatment of acne were last published by the American Academy of Dermatology in 2016.

The FDA has approved the oral tyrosine kinase inhibitor cabozantinib (Cabometyx – Exelixis) for treatment of patients with advanced renal cell carcinoma previously treated with antiangiogenic therapy. Cabozantinib was first approved in 2012 as Cometriq for treatment of progressive, metastatic medullary thyroid cancer.Anti-VEGF antibodies, tyrosine kinase inhibitors, and mTOR kinase inhibitors have become the standard of care for treatment of unresectable or metastatic renal cell cancer.1FDA approval was based on the results of a randomized open-label trial (METEOR) comparing cabozantinib to...

Two new topical testosterone products, a 1% gel (Testim) and a buccal tablet (Striant), have been approved by the FDA for treatment of hypogonadism in men. This review briefly describes hypogonadism and its causes and lists other available formulations of testosterone. For the new products, information on pharmocokinetics, adverse effects, and dosage and administration is provided, as well as a summary of clinical trial results. A dosage and cost table for topical testosterone products is also included. The conclusion summarizes the safety and effectiveness of the new drugs and discusses the...

The FDA has approved the use of a responsive neurostimulator device (RNS System – NeuroPace) for adjunctive treatment of adults with partial-onset seizures that are not controlled with ≥2 antiepileptic drugs and who have frequent and disabling seizures and no more than 2 epileptogenic foci.

The oral kinase inhibitor pemigatinib (Pemazyre – Incyte) has been approved by the FDA for treatment of adults with relapsed or refractory myeloid/lymphoid neoplasms (MLNs) with fibroblast growth factor receptor 1 (FGFR1) rearrangements. It is the first targeted therapy to be approved in the US for this indication. The drug received accelerated approval from the FDA in 2020 for treatment of adults with previously treated, unresectable, locally advanced or metastatic cholangiocarcinoma with FGFR2 fusions or other rearrangements.

The tissue plasminogen activator (tPA) tenecteplase (TNKase – Genentech) has been approved by the FDA for treatment of acute ischemic stroke in adults. It is the second tPA to be approved in the US for this indication; alteplase (Activase) was approved in 1996. Tenecteplase was approved in 2000 to reduce the risk of death associated with acute ST-elevation myocardial infarction (STEMI).

Permethrin 5% (Elimite Cream - Herbert), a synthetic pyrethroid previously available in a 1% concentration (Nix) for treatment of head lice (Medical Letter, 28:89, 1986) and as an aerosol clothing spray (Permanone) for protection against mosquitoes and ticks (Medical Letter, 31:45, 1989), was recently approved by the US Food and Drug Administration for single-application treatment of infestation with Sarcoptes scabiei (scabies).

Patients may be asking about reports in the lay press that exenatide (Byetta - Med Lett Drugs Ther 2005; 47:45), a synthetic peptide that stimulates release of insulin from pancreatic beta cells, has been used by diabetics and non-diabetics to lose weight. Approved by the FDA to improve glycemic control in patients with type 2 diabetes not controlled by metformin, a sulfonylurea or both, it is given by subcutaneous injection before the morning and evening meals. In clinical trials, some diabetic patients treated with the drug lost weight. No data are available on use in non-diabetics....

Chelation therapy involves oral administration, intravenous infusion or intramuscular injection of drugs that increase excretion of heavy metals. The Medical Letter’s last article on this subject found no evidence that it was effective for treatment of cardiovascular disease. Since then, off-label use of chelation therapy has expanded to include treating children with autism and adults with Alzheimer’s disease, cancer and other chronic diseases.

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Dichlorphenamide (Keveyis – Taro), an oral carbonic anhydrase inhibitor, has been approved by the FDA for treatment of primary hypokalemic and hyperkalemic periodic paralysis and related variants. Dichlorphenamide is the first drug to be approved in the US for this indication. It was approved as Daranide in 1958 for treatment of glaucoma, but had not been marketed since 2002.