Archived weekly brief

Weekly NADAC Price Changes

A weekly executive brief covering the pricing movements that matter most to market strategy and reimbursement planning.

Week of August 19, 2026

Compared with August 12, 2026

Weekly NADAC pricing brief

NADAC Weekly Brief: AbbVie's Immunology Portfolio Drives Net Gains as Ustekinumab and Paliperidone Pull Prices Down

For the week ending August 19, 2026, NADAC pricing showed mixed movement across major therapeutic categories. AbbVie Inc. posted the largest aggregate manufacturer swing at $2.9M across 71 products, largely offsetting a $2.1M decline tied to Interleukin-12 Antagonist drugs (Ustekinumab). Risankizumab-rzaa led market-level gains at $2.7M (+0.3%), while Paliperidone Palmitate and Janssen-manufactured products registered notable declines. The Opioid Antagonist class emerged as the most pressured category, rising 1.2% and contributing $870.4K in impact across 107 drugs. Overall market movement remained tight, with most top-mover NDCs shifting less than 1% week-over-week.

Key takeaways

  • AbbVie Inc. recorded the largest manufacturer-level gain ($2.9M across 71 products), while Janssen Biotech and Janssen Pharmaceuticals both saw declines exceeding $1.1M each.
  • Interleukin-12 Antagonist (Ustekinumab) drove the week's largest relief at -$2.1M, while Interleukin-23 Antagonist and Risankizumab-rzaa moved in the opposite direction with gains of $860.9K and $2.7M respectively.
  • Opioid Antagonist was the most pressured therapeutic class this week, up 1.2% and contributing $870.4K in impact across 107 drugs, warranting continued monitoring for formulary and reimbursement impact.

What to watch

Interleukin-12 vs. Interleukin-23 Divergence

Ustekinumab (Interleukin-12 Antagonist) declined $2.1M while Risankizumab-rzaa and Interleukin-23 Antagonist products gained $2.7M and $860.9K respectively. Payers should watch for continued divergence in this competitive immunology space.

GLP-1 Receptor Agonist Softening

The GLP-1 Receptor Agonist class fell 0.9%, a $959.1K impact across 41 drugs. Procurement teams should track whether this downward trend continues into next week's release.

Opioid Antagonist Cost Pressure

This class posted the highest weighted increase this week (+1.2%, $870.4K impact across 107 drugs). Pharmacy and payer teams should monitor for sustained upward pressure in upcoming releases.

Largest cost pressure

$1.5MUp

Largest absolute weekly price increase in the current release

Largest relief

$2.1MDown

Largest absolute weekly price decline in the current release

Most pressured class

Highest weighted movement this week

Largest manufacturer swing

Largest aggregate movement across tracked NDCs

Top 10 NDCs by weekly price movement

Up to 10 changed products are shown. Each edition preserves its published price comparison.

Notes and methodology

How the weekly brief calculations were ranked, aggregated, and preserved for archive consistency.

Top mover ranking

The Top 10 table ranks NDCs by absolute weekly impact: the change in unit price multiplied by dispensing exposure when available.

Segment summaries

Drug markets, manufacturers, and therapeutic classes aggregate the same NDC-level deltas. Average move is the mean percent change, while impact is the summed dollar-weighted effect using dispensing-volume exposure when that dataset is available.

Headline cards and archive stability

Most pressured class selects the largest positive class impact, and largest manufacturer swing selects the manufacturer with the largest aggregate absolute impact. Every weekly brief stores a frozen snapshot so archived pages do not drift when live NADAC data changes.

More archived editions

Each edition is permanently archived under its release date.

Full archive

Week of September 30, 2026

NADAC weekly update: 14 NDCs changed — 2026-09-30

The CMS publication dated 2026-09-30 contains 30,079 priced NDCs in our data. Of the 29,945 NDCs also priced in the 2026-09-23 publication, 14 changed and 29,931 were unchanged. This edition reports the available updates; a small number of changes does not establish a market-wide trend.

Week of September 23, 2026

NADAC Week of Sep 23: Biosimilar Surge Drives Cost Pressure While Broader Market Skews Lower

The September 23, 2026 NADAC release compared against September 16 shows a market with more line-item decreases (15,294) than increases (13,311) across 29,892 comparable NDCs, indicating a mild net downward bias in pricing activity despite a few large upside outliers. The standout event is a $3.0M weighted increase in Fulphila (pegfilgrastim-jmdb) from Biocon Biologics, which single-handedly drove the Leukocyte Growth Factor class to the top of this week's cost-pressure rankings and made Biocon the largest manufacturer swing. On the relief side, Kesimpta (ofatumumab) posted the largest single-product decline at $469.9K, while the Corticosteroid class—spanning 1,122 drugs—registered a modest but broad-based $436.6K decrease, reinforcing that downward movement this week is more widely distributed than the upside, which is concentrated in a handful of specialty biologics.

Week of September 16, 2026

NADAC weekly update: no price changes among comparable NDCs — 2026-09-16

The CMS publication dated 2026-09-16 contains 29,936 priced NDCs in our data. Of the 29,915 NDCs also priced in the 2026-09-09 publication, 0 changed and 29,915 were unchanged. This edition reports the available updates; a small number of changes does not establish a market-wide trend.

Explore the broader trend ecosystem