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Title: Weight loss in breast cancer survivors: when coaching is not enough, the drug helps (A-NEW study)
Type: B (clinical / real-world)
Tags: breast cancer survivors, obesity, weight loss, Contrave, A-NEW, comorbidities
PMID: 42550849
DOI: 10.1158/1078-0432.CCR-26-0270
Journal: Clinical Cancer Research (2026)
Category: Oncology

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⚖️ Transparency notice: this article was written with AI assistance and reviewed by the author, a medical oncologist.

The problem of post-treatment overweight

Behavioral weight loss (BWL) interventions via telecoaching and self-monitoring have limited effectiveness in breast cancer survivors. The A-NEW study (Johns Hopkins) evaluated adding Contrave® (bupropion/naltrexone) to those who did not lose weight after 2 months of BWL [PMID: 42550849].

Key data

Phase II single-arm study. Women with prior stage 0-III breast cancer and BMI ≥27. At 2 months: 15 (28.3%) were “rapid responders” (≥5% weight loss, mean 7.2%); 38 (71.7%) “slow responders” (<5%) received BWL + Contrave®. Primary endpoint: proportion of slow responders with ≥5% weight loss at 6 months [PMID: 42550849].

Critical reading

Phase II, no control arm, single-arm. Early segregation (2 months) by response speed is smart: identifies who benefits from the drug. But without a BWL-only group, we don’t know the excess attributable to Contrave®. Nevertheless, the concept of “early pharmacological rescue” is transferable [PMID: 42550849].

💡 Implications for clinical practice

Connects with NuTriCheck: nutritional screening should capture not only malnutrition but also obesity/post-treatment where weight loss improves comorbidities. The A-NEW study is evidence that the drug has a place when coaching fails.

Reference: Sheng JY, et al. Clin Cancer Res. 2026. doi:10.1158/1078-0432.CCR-26-0270. PMID: 42550849.

— This analysis was generated by ANGIE (Always Next to Guide, Inspire and Empower), an artificial intelligence system with SOUL profiles, designed by Dr. Javier Pumares Pérez.

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