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
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
4
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).
5
Once-Weekly Insulin Icodec (Awiqli) for Type 2 Diabetes
The Medical Letter on Drugs and Therapeutics • September 28, 2026; (Issue 1764)
Insulin icodec (Awiqli – Novo Nordisk), an ultra-long-acting
basal human insulin analog, has been approved
by the FDA for once weekly treatment of type 2 diabetes.
Two once-daily, long-acting insulin analogs are available
in the US: glargine U300 (Toujeo) and degludec U100 and
U200 (Tresiba). Insulin icodec has been available in Canada
since 2024.
6
Drugs for Prevention of Migraine
The Medical Letter on Drugs and Therapeutics • September 28, 2026; (Issue 1764)
Indications for preventive treatment of migraine include
frequent or severe attacks, contraindications to or toxicity with
acute treatments, and patient preference. Drugs for acute
treatment of migraine were reviewed in a previous issue.
7
Daraxonrasib (Rasonque) for Metastatic Pancreatic Cancer
The Medical Letter on Drugs and Therapeutics • September 28, 2026; (Issue 1764)
The FDA has approved daraxonrasib (Rasonque –
Revolution Medicines), an oral RAS GTPase multi-selective
inhibitor, for treatment of metastatic pancreatic
adenocarcinoma, regardless of RAS G12 mutation status,
in adults who received at least one prior systemic therapy
or are not candidates for multi-agent systemic therapy. It is
the first RAS GTPase inhibitor to be approved in the US for
any indication.
8
In Brief: Subcutaneous Lecanemab (Leqembi Iqlik) for Initial Treatment of Alzheimer's Disease
The Medical Letter on Drugs and Therapeutics • September 14, 2026; (Issue 1763)
The FDA has approved Leqembi Iqlik, the subcutaneous
(SC) formulation of the amyloid beta-directed monoclonal
antibody lecanemab, for once-weekly initiation dosing in
patients with Alzheimer's disease (AD). The SC formulation
was previously approved only for maintenance treatment
in patients who had received IV lecanemab for at least
18 months.
9
Comparison Table: Triptans (online only)
The Medical Letter on Drugs and Therapeutics • September 14, 2026; (Issue 1763)
View the Comparison Table: Triptans
10
Comparison Table: Amyloid Beta-Directed Antibodies for Alzheimer's Disease (online only)
The Medical Letter on Drugs and Therapeutics • September 14, 2026; (Issue 1763)
View the Comparison Table: Amyloid Beta-Directed Antibodies for Alzheimer's Disease
