Issue #213·

A gene therapy worked for 3 years, then stopped. Now the FDA has to decide.

uniQure's Huntington's gene therapy looked like a breakthrough at three years. Then the four-year data arrived, $1 billion in market value evaporated, and the FDA was left holding an approval application built on the older, prettier numbers. Meanwhile, the obesity drug arms race escalated on three fronts, and Beam Therapeutics accused a former scientist of walking out with its secret recipe.

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uniQure's Huntington's Gene Therapy Loses Its Signal at Year Four

A $1 billion market wipeout in a single morning. uniQure's Huntington's gene therapy AMT-130 showed 80% disease slowing at three years, but four-year data revealed that benefit had dropped to 44%, and the result was no longer statistically significant. The stock cratered 37%. The awkward part: the FDA is currently reviewing a marketing application built on the stronger three-year numbers from high-dose patients. If the agency approves a therapy whose signal appears to be fading in real time, it sets an uncomfortable precedent. If it doesn't, the only promising treatment for a devastating disease goes back to square one.

Why it matters: This isn't just a uniQure problem. If a one-time gene therapy's effect fades in the brain (where neurons don't divide and the payload should theoretically last forever), it challenges the foundational promise of AAV-based gene therapy in neurodegenerative disease.

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The Obesity Arms Race

Lilly's Triple-Agonist Retatrutide Posts 20.8% Weight Loss in Phase 3

The first triple-agonist obesity drug just delivered pivotal data, and the numbers are big. Patients on Lilly's retatrutide lost up to 20.8% of their body weight over 80 weeks; among those with BMI above 35, the average was 60.8 pounds. By targeting GLP-1, GIP, and glucagon receptors simultaneously, the drug doesn't just suppress appetite, it may also boost fat burning. Filing is expected in Q1 2027.

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Roche Crashes the Obesity Duopoly With 15.5% Weight Loss

Roche's enicepatide posted 15.5% weight loss in a mid-stage diabetes trial, establishing the company as a credible third player in a market Novo Nordisk and Lilly have dominated. Blood sugar results were equally striking: 90% of patients on the top dose hit well-controlled diabetes levels. Roche has spent billions assembling its obesity pipeline through acquisitions, and Phase 3 trials are already underway.

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Zealand's Obesity Drug Worked Better at a Lower Dose (Wait, What?)

Zealand Pharma's amylin-based drug petrelintide posted 9.8% weight loss in Phase 2, but the middle dose (5 mg) outperformed the highest one (9 mg). That inverted dose-response curve complicates Phase 3 planning considerably. The upside: GI side effects were comparable to placebo, a rarity in obesity drugs. Zealand is developing petrelintide both alone and in combination with Roche's enicepatide.

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Clinical Wins and Regulatory Milestones

Amgen Survives Biotech's Most Notorious Graveyard: Lupus

Lupus has destroyed more drug programs than almost any disease in biotech. Amgen's daxdilimab just posted a clean Phase 2 win in discoid lupus, with a 6-point reduction in disease severity versus placebo and no serious adverse events. The catch: an earlier study in systemic lupus (the bigger commercial prize) didn't deliver the efficacy Amgen wanted.

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The Peanut Patch Finally Reaches the FDA's Door, Eight Years Later

DBV Technologies submitted its VIASKIN Peanut Patch for FDA approval after one of biotech's wildest regulatory sagas: seven years, a rejection, a patch redesign controversy, and a complete trial restart. With Palforzia (the only competing treatment) now off the U.S. market, DBV could become the sole option for pediatric peanut allergy if approved.

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A Pill That Wants to Replace Your Psoriasis Injection

Ascletis reported that its oral IL-17A inhibitor ASC50 delivered a 48.9% placebo-adjusted PASI reduction in 28 days, with a half-life long enough to support once-weekly dosing. No liver safety signals, which matters because Lilly's competing oral IL-17 program was killed by liver toxicity. It's early, but in a $30 billion injectable-dominated market, the proof of concept turns heads.

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Industry and Policy Moves

Beam Therapeutics Says a Scientist Walked Out With Its Secret Recipe

Beam is suing a former scientist and two biotech companies, alleging they stole proprietary base-editing technology to build a competing gene therapy for alpha-1 antitrypsin deficiency. The complaint claims the scientist secretly co-founded a rival startup while still employed at Beam. The case could set a precedent for how aggressively gene-editing companies protect trade secrets as talent moves between firms.

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Big Pharma's New Lobbying Chief Is a Former House Majority Leader

PhRMA tapped former House Majority Leader Eric Cantor as its next CEO, choosing a Washington power player over a healthcare insider. With Medicare drug-price negotiations expanding to 20 drugs annually by 2029 and PhRMA's lobbying spend topping $38 million, the hire signals that the industry sees its biggest fight happening in Congress, not in the lab.

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Roche Is Building Autonomous AI Labs to Discover Drugs Without Humans

Roche announced plans for fully autonomous AI-driven laboratories, with its internal tool Target Nexus on track to influence 80% of research portfolio decisions by year-end. The company has amassed 2,176 NVIDIA GPUs (the largest footprint in pharma) and is redirecting roughly CHF 2 billion in R&D savings toward new programs. The goal: 20 new molecular entities by 2030.

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