Today's Brief

August 14, 2026 · Friday

1 Key Question · 2 Research Highlights · 3 Quick Updates

中危前列腺癌,能用 5 次 SBRT 代替几周的放疗吗?

能——5 次 SBRT 让肠道、泌尿、性功能副作用明显更少、患者体验更好;但代价是 3 年生化失败率略高(7.8% 对 4.2%),疾病控制没有更好、甚至略逊。是「用一点疾病控制换更好体验」的权衡,不是简单的越短越好。

JAMA · 2026-08-13

Every conclusion is linked to its evidence.

Who it applies to

中危、局限性前列腺癌、选择根治性外照射的男性;不含高危患者,也不含选择主动监测的低危者。

What it showed

5 次 SBRT 相比数周的 MH-IMRT,肠道、泌尿、性功能副作用更少、严重泌尿并发症更低,患者报告的体验更好。

What remains unknown

3 年生化失败率 SBRT 略高(7.8% 对 4.2%);随访仅 3 年,长期无转移生存与总生存未知——短程方案在疾病控制上的取舍还需更长随访。

Population
中危、局限性前列腺癌男性;698 例(NRG-GU005,SBRT 353 / MH-IMRT 345)。
Intervention
SBRT 36.25 Gy / 5 次。
Comparator
中度大分割 IMRT(MH-IMRT)70 Gy/28 次 或 60 Gy/20 次。
Applicability
仅中危、局限性、选择外照射的男性;不外推高危或选择主动监测的低危人群。
Primary endpoint
疾病控制 + 患者报告结局(肠道/泌尿/性功能的临床意义下降),共同主要终点。
Key results
3 年无病生存 SBRT 88.6% 对 92.1%,差异主要来自生化失败 7.8% 对 4.2%(p=0.037)——疾病控制略逊。体验更好:肠道功能明显下降 34.9% 对 43.8%(p=0.034)、2 年尿失禁 25.9% 对 34.7%(p=0.023)、1 年性功能下降 34% 对 44%(p=0.026)、严重泌尿并发症 0.6% 对 2.5%(p=0.04)。
Limitations
随访仅 3 年;生化失败为替代终点,长期无转移/总生存未知;开放的分割方案(对照允许两种分割)。
Source
NRG-GU005 试验;JAMA,2026-08-13(当期)。

Research

Worth reading this week.

术前一天起用达格列净,心脏手术后急性肾损伤风险减半

Journal

784 例择期心脏手术;达格列净 10 mg(术前 1 天至术后第 2 天共 4 剂)使 7 天内 AKI 从 52% 降至 28%(RR 0.54,p<0.001);房颤等次要结局未改善。

JAMA · 随机对照 · 已发表

司库奇尤单抗在风湿性多肌痛达到持续缓解主要终点

Journal

Ⅲ 期、随机双盲;司库奇尤单抗对比安慰剂在第 52 周持续缓解显著更高,并显著减少糖皮质激素用量(分组具体数值以全文为准)。

NEJM · Ⅲ 期 · 已发表

Quick News

Signals worth watching.

  • 政策 · 血脂 · JAMA 刊出 2026 血脂异常指南对一级预防他汀治疗的影响解读,延续「谁该继续/开始他汀」的循证讨论。

    Journal

    JAMA · 2026-08

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    Journal

    JAMA · 2026-08-10

  • 泌尿 · 循证实践 · 偏低危前列腺癌的主动监测在美国退伍军人人群使用率上升(JAMA 研究快报)——与今日头条呼应。

    Journal

    JAMA · 2026-08-13

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The Product

Evidence appraisal · rigor, not a recap

AI summarizes papers. TrialReviewer appraises them.

Not a summary tool — TrialReviewer appraises evidence like a clinical epidemiologist: recomputes absolute benefit ( / ), surfaces bias and design flaws, grades quality (), and states whether the evidence supports the claim. The decision stays yours.

Includes ACCORD, SPRINT, and RECOVERY examples

Input · paper text you paste or upload

The ACCORD trial randomized 10,251 patients with type 2 diabetes at high CV risk to intensive glucose lowering (HbA1c<6.0%) or standard therapy… the intensive arm had higher all-cause mortality (HR 1.22, 95% CI 1.01–1.46) and was terminated early.

TrialReviewer's appraisal
Study type: RCT (early-terminated) · Evidence level: Abstract
Appraisal confidenceB
EndpointDirection
Nonfatal MIFavors intensive
CV deathFavors standard
All-cause mortality 1.22 · favors standard
Severe hypoglycemia~3× excess
All-cause mortality 1.22 (95% CI 1.01–1.46)
1.0
The CI's lower bound (1.01) barely clears the null (1.0) — a fragile result.
Bottom Line

Intensive control did not reduce MACE; all-cause mortality rose (HR 1.22) with ~3× more severe hypoglycemia — the evidence does not support tighter glucose targets in this population.

Every threshold judgment carries an inline [Author Year] citation, e.g. [Walsh et al. 2014].

Why not just use ChatGPT?

Same number, two very different treatments. Say a trial reports a 25% relative risk reduction:

A general AI · translates

“The trial reports a 25% relative risk reduction, suggesting the intervention may reduce the outcome compared with control.”

But it does not check absolute benefit, harms, or whether the result supports the clinical claim.

TrialReviewer · appraises the evidence
Appraisal confidenceB
  • Absolute risk reduction 1.6% (not 25%)
  • Number needed to treat 61
  • All-cause mortality actually increased

Appraisal: the evidence does not support the claimed benefit.

What you get

Reports follow the appraisal framework. Each dimension below maps to real engine output — not a fixed template with empty slots.

Pinpoint where bias and design flaws come from

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and recomputed — not just a relative risk reduction (RRR) recap.

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Know how reliable the evidence really is

evidence quality and appraisal confidence stated separately — never conflated.

Get a straight answer: does the evidence support the claim?

One Bottom Line sentence — whether the claim holds, stated plainly.

Why you can trust this appraisal

Only claims we can verify — we'd rather say less than oversell.

60+
core methodology references (checkable one by one)
See validation cases →
Methodology on the record

Every threshold judgment carries an inline [Author Year] citation, backed by a 60+ core reference library you can check in Expert reports.

Benchmark validation

Appraisals on real trials — ACCORD, SPRINT, RECOVERY — aligned with published expert commentary. Sample reports are the validation cases; compare yourself.

Auditable framework

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Honest limits build trust

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4
study designs
Randomized controlled trials (RCT)Meta-analysis / systematic reviewCohort / observationalDiagnostic accuracy studies

The appraisal rests on a framework

Every appraisal is grounded in established evidence-appraisal methods and 60+ core references — not the model's intuition.

See why evidence quality was downgraded

-informed rating — each downgrade criterion explained from a high-quality start.

Know when a fatal flaw blocks the rating

appraisal confidence — a fatal methodology flaw sends the rating straight to D.

See whether evidence clears the bar to change practice

Practice-Changing Checklist — explicit criteria, not intuition.

See net value — benefit and harm side by side

/ / together — so relative-effect hype doesn't mislead you.

Know how fragile a significant result really is

— how few events would flip statistical significance.

Know whether the improvement matters to patients

MCID — whether the effect clears a clinically meaningful threshold.

Sources: Nuovo 2002 · Walsh 2014 · Balshem 2011 · Schulz 2010, and 60+ more.

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