The CDC has issued new guidance allowing for an interval of up to 8 weeks between the first and second primary doses of an mRNA COVID-19 vaccine in certain patients 12-64 years old.1 Product labeling currently recommends a 3-week interval between the first two doses of the Pfizer/BioNTech mRNA vaccine (Comirnaty) and a 4-week interval between the first two doses of the Moderna mRNA vaccine (Spikevax). The new guidance is based on data suggesting that a longer interval can decrease the risk of myocarditis and may improve vaccine efficacy.

The immune checkpoint inhibitor dostarlimab-gxly (Jemperli – GSK) has been approved by the FDA for use in combination with carboplatin and paclitaxel for treatment of adults with mismatch repair deficient (dMMR) or microsatellite instability-high (MSI-H) primary advanced or recurrent endometrial cancer. Dostarlimab was recently granted regular approval for treatment of adults with dMMR recurrent or advanced endometrial cancer that progressed on or following a prior platinum-containing regimen in any setting and who are not candidates for curative surgery or radiation.

Penpulimab-kcqx (Anniko – Akeso Biopharma), a programmed death receptor-1 (PD-1)-blocking antibody, has been approved by the FDA for use in combination with cisplatin or carboplatin plus gemcitabine for first-line treatment of recurrent or metastatic nonkeratinizing nasopharyngeal carcinoma and for use as monotherapy for metastatic disease in adults with disease progression on or after platinum-based chemotherapy and at least one other prior line of therapy. Penpulimab is the second immune checkpoint inhibitor to be approved in the US for treatment of nasopharyngeal carcinoma;...

The FDA has granted regular approval to dostarlimabgxly (Jemperli – GSK), an immune checkpoint inhibitor, for treatment of adults with mismatch repair deficient (dMMR) recurrent or advanced endometrial cancer that has progressed on or following a prior platinum-containing regimen in any setting and who are not candidates for curative surgery or radiation. Dostarlimab received accelerated approval in 2021 for treatment of adults with dMMR recurrent or advanced endometrial cancer or nonendometrial solid tumors that progressed on or following prior treatment and who have no...

Influenza is generally a self-limited illness, but pneumonia, respiratory failure, and death can occur, especially in persons at increased risk for influenza complications (see Table 1). Updated information on influenza activity and antiviral resistance is available from the CDC at cdc.gov/flu.

The FDA has issued an Emergency Use Authorization (EUA) for the long-acting investigational IV monoclonal antibody pemivibart (Pemgarda – Invivyd) for pre-exposure prophylaxis of COVID-19 in persons ≥12 years old (weight ≥40 kg) who have moderate to severe immune compromise and are unlikely to respond adequately to COVID-19 vaccination (see Table 1). Pemgarda is the only drug that is currently authorized in the US for pre-exposure prophylaxis of COVID-19. Tixagevimab/cilgavimab (Evusheld) was previously available under an EUA for this indication, but it lacks activity against...

Cosibelimab (Unloxcyt – Checkpoint Therapeutics), a programmed death ligand-1 (PD-L1) blocking antibody, has been approved by the FDA for treatment of locally advanced or metastatic cutaneous squamous cell carcinoma in adults who are not candidates for curative surgery or radiation. It is the first PD-L1 inhibitor to be approved in the US for this indication. The PD-1 inhibitors pembrolizumab (Keytruda) and cemiplimab (Libtayo) are also approved for treatment of cutaneous squamous cell carcinoma.

The investigational monoclonal antibodies casirivimab and imdevimab (REGEN-COV – Regeneron) have been available in the US under an Emergency Use Authorization (EUA) since late 2020 for use together to treat mild to moderate COVID-19 in persons ≥12 years old who weigh ≥40 kg and are at high risk of progression to severe disease or hospitalization. The FDA has now expanded this EUA to allow use of the antibodies together for post-exposure prophylaxis of COVID-19 in such persons, if they are not fully vaccinated against COVID-19 or are unlikely to have an adequate immune response...

The FDA has approved ponesimod (Ponvory – Janssen), a sphingosine 1-phosphate (S1P) receptor modulator, for treatment of adults with relapsing forms of multiple sclerosis (MS), including clinically isolated syndrome (initial neurological episode), relapsing-remitting disease, and active secondary progressive MS (SPMS). Ponesimod is the fourth oral S1P receptor modulator to be approved in the US for once-daily treatment of relapsing forms of MS; ozanimod (Zeposia) and siponimod (Mayzent) are also approved for use in adults, and fingolimod (Gilenya) is indicated for use in patients...

The FDA has approved tislelizumab (Tevimbra – BeiGene), a programmed death receptor-1 (PD-1) blocking antibody, for treatment of unresectable or metastatic esophageal squamous cell cancer in adults who received prior systemic chemotherapy that did not include a programmed death ligand-1 (PD-L1) inhibitor.