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IntellaTurn's Weekly Scoop
By Erin at IntellaTurn ● May 21, 2026
This week: Notable drug approvals | Around the industry | Tracking Pazdur | Third circulatory system detected in the human body
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Notable FDA drug approvals
AstraZeneca
✅ AstraZeneca’s BAXFENDY: First aldosterone synthase inhibitor for treating uncontrolled hypertension in adults
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The Monday approval of the drug, baxdrostat, covers its use alongside other antihypertensive medications for adults whose blood pressure is not adequately controlled by currently available therapies.
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Baxfendy is a once-daily oral small molecule designed to inhibit aldosterone synthase, an enzyme that’s key to production of aldosterone by the adrenal gland.
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In the phase 3 clinical trial that supported Baxfendy’s FDA submission, results showed that the 1 mg and 2 mg doses of the drug both led to statistically significant reductions in blood pressure compared to placebo measured at 12 weeks. The study drug was well tolerated by patients. (MedCity News)
✅ Daiichi, AstraZeneca’s ENHERTU: Dual approvals in HER-positive early breast cancer
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The FDA simultaneously greenlighted Enhertu (fam-trastuzumab deruxtecan-nxki) for both the neoadjuvan and adjuvant treatment of patients with HER2-positive early breast cancer.
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The adjuvant nod came nearly two months ahead of schedule, as the FDA had originally targeted a decision by July 7.
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While early, the adjuvant label comes with a catch: It precludes patients who’ve received Enhertu before surgery from continuing on the HER2-directed ADC in the post-operative setting.
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Specifically, in the adjuvant setting, Enhertu is now approved for patients with HER2-positive breast cancer who have residual invasive disease following treatment with Herceptin (trastuzumab)—with or without Roche’s Perjeta—and taxane-based treatment.
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When announcing an FDA priority review in March, Daiichi and AZ described the indication as for “after neoadjuvant HER2 targeted treatment,” which, if approved verbatim, would cover prior use of Enhertu. But apparently a broad label did not pan out.
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As for the neoadjuvant setting, Enhertu is cleared on top of the THP regimen (a taxane, Herceptin and Perjeta) for treating adults with HER2-positive stage 2 or stage 3 breast cancer. (Fierce Pharma)
✅ Kyowa Kirin’s CRYSVITA: New dosing option in adults with X-linked hypophosphataemia
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The dosing update to the prescribing information for Crysvita (burosumab-twza) introduces a new option for adults with X-linked hypophosphataemia (XLH).
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Affecting adults and children, this rare, progressive, genetic disorder impacts both bone and muscle health due to the body’s inability to retain sufficient phosphorus, a mineral essential for bone health.
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Following the update, healthcare providers can increase both the dose and frequency of the therapy for XLH patients whose serum phosphorus remains below normal after the initial treatment. (Pharmaceutical Technology)
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iStock / dk_photos
➡️ Ebola vaccine for Bundibugyo strain could take months before human trials
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A vaccine for the Ebola strain driving the outbreak in the Democratic Republic of Congo and Uganda is likely months away from human trials, and there is no guarantee it would work, the World Health Organization said Wednesday.
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There are currently no approved vaccines for the Bundibugyo strain of the Ebola virus.
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There are two potential vaccine candidates, but neither is ready to move into human testing, Dr. Vasee Moorthy, the lead for the WHO’s research and development blueprint, said during a news conference.
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The more promising of the two could take six to nine months before enough doses are ready for trials, Moorthy said. The other may be available in two to three months but has not yet shown supporting results in animal studies.
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The timeline has pushed health officials to consider other options, including Merck’s Ebola vaccine, called Ervebo. (NBC News)
➡️ Experimental Lilly drug reaches surgery-level weight loss
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A next-generation obesity drug from Eli Lilly reached a new level of weight loss in a late clinical trial, matching levels generally seen in those who've had bariatric surgery, company officials said today.
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The results challenge assumptions of how much the drugs can achieve and could help Lilly reinforce its position at the front of an increasingly competitive market.
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The phase 3 trial of retatrutide — a first-in-class injectable drug which includes GLP-1, GIP and glucagon hormones — found participants were able to achieve weight loss of about 28% over roughly 18 months.
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Nearly half (45%) were able to lose at least 30% or more of their body weight, a level associated with bariatric surgery.
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With a lower amount of the drug, trial participants lost roughly 19% of their body weight.
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Roughly 11% of patients on the top dose discontinued the drug due to adverse events, which Ken Custer, executive vice president and president at Lilly Cardiometabolic Health, said is "in line" with studies of anti-obesity drugs.
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Lilly's top-selling Zepbound delivered 21% average weight loss in late-stage trials, while Novo Nordisk's Wegovy produced about 15%. (Axios)
➡️ Relay drug shows early promise against rare blood vessel diseases
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A drug prospect from Relay Therapeutics has shown signs in a mid-stage clinical trial that it may be able to treat a cluster of conditions associated with the development of abnormal blood vessels.
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In 20 people with these vascular anomalies, a 12-week regimen of Relay’s therapy, zovegalisib, was associated with a 60% response rate across all doses tested, the company said Tuesday.
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Nearly all patients experienced an improvement in symptoms, and responses were observed in people with different disease subtypes and PIK3CA mutations driving their condition.
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Investigators did have to dial back dosing in 23% of people getting one of the doses Relay will take into further testing.
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But the company also said no patients discontinued treatment, the most common adverse events were “low-grade, manageable, and reversible” and the drug appeared safe enough to envision the kind of “chronic use” that’d be necessary for these conditions. (Biopharma Dive)
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Pazdur declines to announce candidacy for vacated FDA commissioner role
Dr. Pazdur (Wikimedia)
What to know: Former FDA oncology boss Richard Pazdur—who also briefly served as director of the Center for Drug Evaluation and Research—has sidestepped calls to put his name forward for the agency’s recently vacated top position.
During a keynote session at RBC Capital Markets’ global healthcare conference on Tuesday, however, Pazdur “declined to put forward his own candidacy for FDA commissioner,” the analysts wrote in a note to investors on Wednesday.
Yes, but: He “outlined a clear vision for what the next commissioner must bring,” the group added.
These deliverables include “concrete plans with timelines to restore confidence, preserve science-driven culture, and think outside the box bringing a bottoms up approach to the agency,” according to RBC.
What to watch: With Makary now gone, biotech wants Pazdur back.
“Decisional volatility, staff exodus, missed deadlines, and eroding scientific predictability at the FDA have created a crisis of confidence in America’s ability to remain a leader in biomedical progress,” the biotech execs wrote in their letter to Trump, which was posted by the advocacy group No Patient Left Behind.
“Solving it requires leadership with proven experience, unimpeachable scientific credibility, and a demonstrated track record of leadership and effectiveness—all qualities Dr. Pazdur has demonstrated throughout his time at the agency.” (Biospace)
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Interesting read: Inside the interstitium, the body’s hidden pathways
iStock / magicmine
What to know: The recent detection of a third circulatory system in the human body could have enormous scientific implications.
Background: We’ve long known about two systems in the human body that circulate fluids.
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A physician in Italy observed the first one, the lymphatic system, which removes excess fluid from tissues, in 1622.
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Six years later, an English doctor described the second, the cardiovascular system, which pumps blood through our arteries, veins and capillaries. (It was a great decade for science.)
Now: Scientists think they may have come across a third.
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After examining the skin of people with tattoos, researchers saw in their biopsies that ink particles had traveled deeper into the body than they expected, through the skin into an interstitial space beneath it — and from that space into the fascia, the connective material below.
The discovery — a hidden pathway between two layers of tissue not known to connect in this way — was a surprise.
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It has far-reaching implications for our understanding of the human body and for our health, because that interstitial space doesn’t just exist between the skin and the fascia, researchers discovered.
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There are spaces like it throughout the body, forming pathways between organs and allowing fluids, cells and molecules to move between them before re-entering the lymphatic and cardiovascular systems.
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Scientists call this large interconnected network the interstitium.
Continue reading: New York Times
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