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RESEARCH NOTE · 02

CJC-1295: studying growth-hormone signaling

What CJC-1295 is, what human studies have actually measured, and why mechanism is not the same as an established benefit.

JOURNAL TYPEResearch NoteSUBJECTCJC-1295
01
CJC-1295 is a long-acting analog of growth hormone–releasing hormone (GHRH). It has been studied for its ability to influence growth hormone (GH) and insulin-like growth factor 1 (IGF-1) signaling.

RESEARCH SNAPSHOT

Research-associated effects

Areas of effect or outcome that researchers have investigated or reported in the literature. These are research associations, not guarantees of a particular result.

RESEARCH AREAGrowth-hormone signaling
RESEARCH AREAChanges in circulating GH and IGF-1
RESEARCH AREALong-acting GHRH receptor activity
RESEARCH AREAResearch into growth-hormone / IGF-1 physiology

Evidence varies by compound, model, formulation, route, endpoint, and study design. Component-level findings do not automatically establish the same effect for a blend.

02

RESEARCH NOTE

What the research measures

RESEARCH NOTEGHRHPRIMARY CONTEXT
FOCUSGHKEY QUESTION
EVIDENCEIGF-1WHAT TO WATCH

Early randomized studies in healthy adults examined pharmacokinetics and changes in GH and IGF-1 after administration. A 2006 study reported sustained, dose-dependent increases in GH and IGF-1 in the study population.

03

RESEARCH NOTE

What that does — and does not — establish

Changing a hormone concentration is a measurable pharmacologic effect. It does not by itself establish improved muscle, recovery, aging, performance, or another practical outcome. Those questions require appropriately designed clinical studies.

04

RESEARCH NOTE

Safety and regulatory context

FDA has identified limited clinical data and potential immunogenicity and peps-impurity concerns for compounded CJC-1295, and has listed reported adverse events including increased heart rate and systemic vasodilatory reaction.

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Source: PubMed; U.S. FDA.