1
Seasonal Influenza Vaccination: 2026-2027
The Medical Letter on Drugs and Therapeutics • October 12, 2026; (Issue 1765)
Annual influenza vaccination is recommended for all persons
≥6 months old without a contraindication. Influenza
vaccines available this season in the US are listed in Table 3.
2
In Brief: A Cardiovascular Indication for Tirzepatide (Mounjaro)
The Medical Letter on Drugs and Therapeutics • October 12, 2026; (Issue 1765)
The injectable GIP/GLP-1 receptor agonist tirzepatide
(Mounjaro – Lilly), which was approved by the FDA in 2022
for treatment of type 2 diabetes, has now been approved
to reduce the risk of MACE in adults with type 2 diabetes
who are at high risk for these events. Tirzepatide is also
available as Zepbound for chronic weight management
and for treatment of obstructive sleep apnea in adults with
obesity.
3
2026-2027 COVID-19 Vaccination
The Medical Letter on Drugs and Therapeutics • October 26, 2026; (Issue 1766)
The FDA has licensed 2026-2027 formulas of the mRNA
COVID-19 vaccines Comirnaty, Spikevax, and mNEXSPIKE
and the adjuvanted protein subunit COVID-19 vaccine
Nuvaxovid.
4
Lunsotogene Parvec (Otarmeni) for Hearing Loss (online only)
The Medical Letter on Drugs and Therapeutics • October 12, 2026; (Issue 1765)
Lunsotogene parvec (Otarmeni – Regeneron), an adeno-associated
viral vector-based gene therapy, has received
accelerated approval from the FDA for treatment of severe-to-profound or profound sensorineural hearing loss (any
frequency >90 decibels hearing level [dB HL]) in patients with
confirmed variants in both copies of the otoferlin (OTOF)
gene. It is the first gene therapy to be approved in the US for
genetic hearing loss.
5
Gedatolisib (Revtorpyk) for Breast Cancer (online only)
The Medical Letter on Drugs and Therapeutics • October 12, 2026; (Issue 1765)
The kinase inhibitor gedatolisib (Revtorpyk – Celcuity)
has been approved by the FDA for use in combination with
fulvestrant, with or without the cyclin-dependent kinase
(CDK) 4/6 inhibitor palbociclib (Ibrance), for treatment of
hormone receptor (HR)-positive, human epidermal growth
factor receptor 2 (HER2)-negative locally advanced or
metastatic breast cancer without a PIK3CA mutation in
adults who had disease progression on or after at least one
prior line of endocrine therapy for metastatic disease.
6
Vusolimogene Oderparepvec (Tudriqev) – An Oncolytic Viral Therapy for Melanoma (online only)
The Medical Letter on Drugs and Therapeutics • October 12, 2026; (Issue 1765)
Vusolimogene oderparepvec (Tudriqev – Replimune), a
genetically-modified herpes simplex virus type 1 (HSV-1)
oncolytic therapy, has been granted accelerated approval by
the FDA for use in combination with the programmed death
receptor-1 (PD-1)-blocking antibody nivolumab (Opdivo) for
treatment of unresectable advanced cutaneous melanoma
in adults who had disease progression on a PD-1-blocking
antibody-based regimen. About 30-50% of patients develop
primary resistance to anti-PD-1 therapy. The oncolytic viral
therapy talimogene laherparepvec (Imlygic) was approved
in 2015 for treatment of patients with melanoma recurrence
postsurgery.
7
In Brief: An Expanded Indication for Afrezza
The Medical Letter on Drugs and Therapeutics • October 26, 2026; (Issue 1766)
The rapid-acting inhaled human insulin Afrezza (MannKind),
which was approved in 2014 for treatment of type 1 or type
2 diabetes in adults, has now been approved by the FDA for
use in children ≥6 years old.
8
Treatment of Allergic Rhinitis and Allergic Conjunctivitis
The Medical Letter on Drugs and Therapeutics • March 31, 2025; (Issue 1725)
Initial treatment of allergic rhinitis (AR) depends
on the severity of symptoms and whether they are
intermittent or persistent (see Table 1).
9
COVID-19 Update: 2025-2026 Vaccine Formulations and Recommendations
The Medical Letter on Drugs and Therapeutics • October 13, 2025; (Issue 1739)
The FDA has licensed new 2025-2026 formulations
of the mRNA COVID-19 vaccines manufactured by
Pfizer/BioNTech (Comirnaty) and Moderna (Spikevax,
mNEXSPIKE) and the adjuvanted protein subunit
COVID-19 vaccine manufactured by Novavax
(Nuvaxovid). The new formulations are indicated
for use in all adults ≥65 years old and in persons
6 months (Spikevax), 5 years (Comirnaty), or 12
years (mNEXSPIKE, Nuvaxovid) through 64 years old
who are at high risk for severe COVID-19 because
of an underlying condition. An Emergency Use
Authorization allowing administration of the Pfizer
vaccine to children 6 months through 4 years old has
been withdrawn.
10
Comparison Table: Some Drugs for Migraine Prevention (online only)
The Medical Letter on Drugs and Therapeutics • September 28, 2026; (Issue 1764)
View the Comparison Table: Some Drugs for Migraine Prevention
