SLU-PP-332 research

The SLU-PP-332 evidence base cited here is 3 sources — 3 preclinical. Critically, that evidence is almost entirely preclinical (animal and in-vitro) — no human clinical trials are cited, so efficacy and safety in people remain unproven. Regulatory status: Not FDA-approved (never tested in humans).

• SLU-PP-332 is NOT a peptide — it's a synthetic small molecule (~290 Da), a pan-ERR (estrogen-related receptor) agonist with preference for ERRα, developed at Saint Louis University as an 'exercise mimetic'.

SLU-PP-332 is an experimental 'exercise mimetic' — a small molecule that switches on the metabolic gene programs normally triggered by aerobic exercise. In obese and aging mice it drives weight loss, raises energy expenditure, and improves endurance without the animals exercising more or eating less.

SLU-PP-332 is a synthetic small molecule (~290 Da, formula C₁₈H₁₄N₂O₂) — chemically a benzohydrazide, not a peptide. It is a pan-agonist of the estrogen-related receptors (ERRα/β/γ) with ~2.3-fold selectivity for ERRα (EC50 ~98 nM) over ERRβ and ERRγ.

The ERRs are orphan nuclear receptors that act as master regulators of cellular energy metabolism — which is why activating them mimics the metabolic adaptations of exercise.

By activating ERRα/β/γ, SLU-PP-332 upregulates the energy-metabolism gene network: it raises PGC-1α (the master regulator of mitochondrial biogenesis), activates AMPK, increases mitochondrial density (reported up to ~1.8-fold), enhances oxidative phosphorylation and ATP output, promotes fatty-acid oxidation, and shifts muscle toward oxidative (type IIa) fibers. The net effect in animals reproduces the acute genetic program of aerobic exercise — hence 'exercise mimetic'. None of this has been demonstrated in humans.

In rodents and dogs the profile was favorable (no liver/kidney/cardiac toxicity reported, no hormone suppression, not a stimulant), with minor cholesterol/liver-enzyme changes in some studies. But the human safety profile is COMPLETELY UNKNOWN — it has never been tested in people. Legal status varies, products marketed for human consumption are illegal/dangerous, and no one should use an untested experimental compound outside a sanctioned, supervised study.

• Aging kidney (2023, Am J Pathol): 21-month-old mice, 8 weeks — reduced albuminuria and restored mitochondrial architecture.

Every result is in animals. Read the impressive numbers (weight loss, endurance) as rodent findings — human efficacy and tolerance are unknown.

SLU-PP-332 is a research chemical, not FDA-approved, and has never been tested in humans. It is sold for laboratory research only; products marketed for human consumption are not legitimate.

All citations link to the original source (PubMed, journal site, or regulatory filing). Independent research database — no vendor influence on what's cited.