{"id":466,"date":"2026-08-28T06:56:05","date_gmt":"2026-08-28T06:56:05","guid":{"rendered":"https:\/\/nhdbio.com\/ibutamoren-mk-677-two-year-older-adult-trial-data\/"},"modified":"2026-08-28T07:31:46","modified_gmt":"2026-08-28T07:31:46","slug":"ibutamoren-mk-677-two-year-older-adult-trial-data","status":"publish","type":"post","link":"https:\/\/nhdbio.com\/de\/ibutamoren-mk-677-two-year-older-adult-trial-data\/","title":{"rendered":"Ibutamoren (MK-677) bei \u00e4lteren Erwachsenen: Zweij\u00e4hrige Daten zur K\u00f6rperzusammensetzung und der fehlende Funktionsgewinn"},"content":{"rendered":"<p class=\"pim-standfirst wp-block-paragraph\">Zur Ver\u00e4nderung der Muskelmasse wird h\u00e4ufig eine zweij\u00e4hrige Studie mit 65 gesunden \u00e4lteren Erwachsenen zitiert. In derselben Arbeit wurde auch keine Verbesserung der Kraft oder Funktion, ein erh\u00f6htes K\u00f6rpergewicht, ein h\u00f6herer N\u00fcchternglukosespiegel und eine verringerte Insulinsensitivit\u00e4t berichtet.<\/p><div class=\"wp-block-group pim-key-takeaways\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Was die Aufzeichnung zeigt<\/h2><ul class=\"wp-block-list\"><li>Die fettfreie Masse nahm unter MK-677 um 1.1 kg zu und sank unter Placebo um 0.5 kg.<\/li><li>Die Ver\u00e4nderung f\u00fchrte nicht zu einer Verbesserung der Kraft oder k\u00f6rperlichen Funktion.<\/li><li>Der N\u00fcchternglukosespiegel stieg um 0.3 mmol\/L und die Insulinsensitivit\u00e4t nahm ab.<\/li><\/ul><\/div><\/div><figure class=\"wp-block-image size-full pim-article-figure\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"http:\/\/nhdbio.com\/wp-content\/uploads\/2026\/08\/gh-secretagogue-research-20260828.png\" alt=\"Wissenschaftler \u00fcberpr\u00fcft Forschungsdaten zu pulsierendem Wachstumshormon und IGF-1\" class=\"wp-image-459\" srcset=\"https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/08\/gh-secretagogue-research-20260828.png 1536w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/08\/gh-secretagogue-research-20260828-300x200.png 300w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/08\/gh-secretagogue-research-20260828-1024x683.png 1024w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/08\/gh-secretagogue-research-20260828-768x512.png 768w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><figcaption class=\"wp-element-caption\">Originale redaktionelle Darstellung des Forschungskontexts. Es handelt sich nicht um eine Studienfigur, ein Patientenbild, ein Produktfoto oder eine Darstellung von Versuchsmaterial.<\/figcaption><\/figure><h2 class=\"wp-block-heading\">Studienprotokoll<\/h2><p class=\"wp-block-paragraph\">Die Studie zeigt, warum ein Surrogat- oder Zusammensetzungsendpunkt nicht f\u00fcr ein patientenrelevantes Ergebnis eintreten kann. Die Erh\u00f6hung von GH und IGF-1 und die \u00c4nderung der fettfreien Masse verbesserten die gemessenen funktionellen Ergebnisse nicht.<\/p><div class=\"wp-block-group pim-evidence-table\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"pim-evidence-row\"><strong>Teilnehmer<\/strong><span>65 gesunde Erwachsene im Alter von 60\u201381 Jahren<\/span><\/div><div class=\"pim-evidence-row\"><strong>Dauer<\/strong><span>Bis zu 24 Monate<\/span><\/div><div class=\"pim-evidence-row\"><strong>Fettfreie Masse<\/strong><span>+1.1 kg vs \u22120.5 kg<\/span><\/div><div class=\"pim-evidence-row\"><strong>K\u00f6rpergewicht<\/strong><span>+2.7 kg vs. +0.8 kg<\/span><\/div><div class=\"pim-evidence-row\"><strong>Funktion<\/strong><span>Keine Verbesserung der Kraft oder k\u00f6rperlichen Funktion<\/span><\/div><\/div><\/div><h2 class=\"wp-block-heading\">Ergebnisse im Kontext<\/h2><p class=\"wp-block-paragraph\">Die Autoren berichteten au\u00dferdem von gesteigertem Appetit, leichten vor\u00fcbergehenden \u00d6demen der unteren Extremit\u00e4ten und Muskelschmerzen als h\u00e4ufigen Nebenwirkungen. Die Glukosewerte bewegen sich in eine ung\u00fcnstige Richtung und verdienen neben dem Ergebnis der Magermasse eine ebenso hohe Bedeutung.<\/p><p class=\"wp-block-paragraph\">Eine separate Phase-IIb-Studie zu H\u00fcftfrakturen umfasste \u00e4ltere 123-Patienten und endete vorzeitig nach einem Sicherheitssignal f\u00fcr Herzinsuffizienz. Seine gemischten funktionellen Ergebnisse reparieren dieses Risikosignal nicht.<\/p><h2 class=\"wp-block-heading\">Was diese Studie nicht beantworten kann<\/h2><p class=\"wp-block-paragraph\">Die Studienpopulation bestand aus gesunden \u00e4lteren Erwachsenen, nicht aus Sportlern oder Personen, die eine Neuzusammensetzung ihres K\u00f6rpers anstrebten.<\/p><p class=\"wp-block-paragraph\">Die Daten stammen aus einem definierten Pr\u00fcfprodukt und -protokoll, nicht aus ungepr\u00fcftem kommerziellem Material.<\/p>","protected":false},"excerpt":{"rendered":"<p>Zur Ver\u00e4nderung der Muskelmasse wird h\u00e4ufig eine zweij\u00e4hrige Studie mit 65 gesunden \u00e4lteren Erwachsenen zitiert. In derselben Arbeit wurde auch keine Verbesserung der Kraft oder Funktion, ein erh\u00f6htes K\u00f6rpergewicht, ein h\u00f6herer N\u00fcchternglukosespiegel und eine verringerte Insulinsensitivit\u00e4t berichtet.<\/p>","protected":false},"author":1,"featured_media":631,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pim_family_ids":"351","pim_article_type":"Published study case","pim_evidence_level":"Randomized human trial; biochemical and body-composition endpoints","pim_reviewer":"NHD evidence editorial workflow","pim_reviewed_date":"2026-08-28","pim_editorial_note":"Source-checked on 2026-08-28. Null findings and study limitations are retained. This is not independent peer review, medical advice, a customer case, or validation of a catalog lot.","pim_review_status":"reviewed","pim_review_reason":"At least two linked primary or authoritative records and an explicit evidence boundary are present.","pim_creation_method":"The editorial workflow starts with linked peer-reviewed papers, trial registries or regulatory records; extracts the population or model, endpoints, numerical results and limitations; and separates the studied intervention from catalog material. AI-assisted drafting was used to structure the first version. Claims, figures, evidence labels and limitations were checked against the linked records in the site editorial workflow. This is not independent peer review.","pim_sources":"[{\"title\":\"MK-677 in healthy older adults: two-year randomized trial\",\"url\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/18981485\/\",\"note\":\"Body composition, function and glucose findings; PMID 18981485.\"},{\"title\":\"MK-0677 phase IIb hip-fracture study\",\"url\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/21067829\/\",\"note\":\"Early termination after CHF signal; PMID 21067829.\"},{\"title\":\"FDA Pharmacy Compounding Advisory Committee meeting materials\",\"url\":\"https:\/\/www.fda.gov\/advisory-committees\/advisory-committee-calendar\/october-29-2024-meeting-pharmacy-compounding-advisory-committee-10292024\",\"note\":\"FDA assessment materials for ibutamoren and ipamorelin.\"}]","footnotes":""},"categories":[19],"tags":[],"class_list":["post-466","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-published-study-cases"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Ibutamoren in Older Adults: Two-Year Trial Results<\/title>\n<meta name=\"description\" content=\"A two-year trial in 65 healthy older adults is often quoted for lean-mass change. 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