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ID: SLU-PP-332 STATUS: ACTIVE

SLU-PP-332

Research Only

Also known as: ERR agonist 332, Exercise mimetic compound

A small molecule ERR (Estrogen-Related Receptor) agonist developed at Saint Louis University. Preclinical studies suggest exercise-mimetic properties, but no human data exists. Represents early-stage research into pharmacologically activating exercise pathways.

Metabolic Very Low Evidence 8 Sources

Research Statistics

Total Sources
8
Human Studies
0
Preclinical
5
Evidence Rating Very Low Evidence
Research Depth 1/5
Global Coverage 1/5
Mechanism Plausibility 2/5
Overall Score
1.5 /5

Very early-stage ERR/PPAR pan-agonist; single research group (Bhatt lab, USC). Only mouse preclinical data published. No human trials. ERRalpha/delta agonism as exercise-mimetic mechanism is plausible based on known ERR biology but unvalidated in humans.

Last reviewed February 2026 How we rate →
!!
Evidence Level
very low
Not approved for human use by any regulatory agency
Limited human clinical trial data
Consult a healthcare provider before use
Not FDA Approved WADA Prohibited

Research Dossier

01 / 7

Overview

What is SLU-PP-332 and what does the research say?

Identity
Also Known As
ERR agonist 332 • Exercise mimetic compound
Type
Small molecule
Length
0 amino acids
Weight
~450 Da
Sequence
N/A (small molecule)
Molecular Structure
Hydrophobic
Polar
Positive
Negative

Mechanism of Action

The proposed mechanisms of SLU-PP-332 are based entirely on animal and in vitro studies. No human mechanistic data exists, and this compound has never been tested in humans.

How It Works (Simplified)

SLU-PP-332 aims to activate “exercise pathways” pharmacologically by targeting ERR receptors:

1
ERR Activation

Binds to ERRalpha and ERRgamma receptors, triggering transcription of metabolic genes normally activated by exercise.

2
Mitochondrial Biogenesis

Promotes PGC-1alpha coactivation, signaling cells to build more mitochondria and enhance energy production capacity.

3
Oxidative Metabolism

Upregulates genes for fatty acid oxidation and oxidative phosphorylation, enhancing aerobic energy pathways.

4
Endurance Enhancement

In mice, these changes translated to improved treadmill endurance and reduced muscle fatigue markers.

Scientific Pathways

ERR-PGC-1alpha Axis (Mitochondrial Biogenesis)

SLU-PP-332 → ERRalpha/ERRgamma Activation → PGC-1alpha Coactivation

                                          Mitochondrial biogenesis genes
                                          Fatty acid oxidation genes
                                          Oxidative phosphorylation genes

Exercise Mimetic Pathway (Metabolic Enhancement)

SLU-PP-332 → ERR Target Genes → OXPHOS/FAO Upregulation → Enhanced Aerobic Capacity

Key Research: Kim SH et al. (Saint Louis University, 2023) demonstrated ERR-mediated endurance enhancement in mouse models. PMID:37399371

Important Limitations

  • Mouse-only data - SLU-PP-332 has never been tested in humans
  • Single research group - Most data originates from one laboratory
  • Pharmacokinetics unknown - No data on absorption, metabolism, or distribution in humans
  • Long-term safety unknown - Chronic ERR activation effects are uncharacterized
  • Research compound only - Not manufactured to pharmaceutical standards
  • Translation uncertain - Mouse exercise physiology differs substantially from humans

Evidence-Chained Benefits

Evidence-Chained Benefits

Research findings linked to mechanisms and clinical outcomes

Mechanism ERRalpha/ERRgamma receptor activation promoting mitochondrial biogenesis
Supported 3 direct studies
Benefit may enhance endurance capacity
Evidence Level
Very Low
3 Animal
2 In Vitro
Mechanism PGC-1alpha coactivation increasing oxidative phosphorylation genes
Supported 4 direct studies
Benefit appears to improve mitochondrial function
Evidence Level
Very Low
2 Animal
3 In Vitro
Mechanism Upregulation of fatty acid oxidation and OXPHOS gene programs
Emerging 2 direct studies
Benefit suggested to enhance metabolic flexibility
Evidence Level
Very Low
2 Animal
2 In Vitro
Mechanism Confidence
Established
Supported
Emerging
Evidence Level
High
Moderate
Low
Very Low

What to Expect

Timeline based on observations from published studies. Individual responses may vary.

Based on mouse studies: ERR target gene activation may begin within days. Changes in oxidative gene expression observed in animal models. No human timeline data available.

Mouse studies suggest mitochondrial biogenesis markers increase over this timeframe. PGC-1alpha pathway activation observed. Human response completely unknown.

In mouse endurance studies, functional improvements in running capacity observed by 4-8 weeks. Translation to human physiology is entirely speculative.

Week 8+

Long-term effects unknown. Chronic ERR activation has not been studied in any species for extended periods. Safety of prolonged use is completely uncharacterized.

Research-Based Observations

This timeline reflects observations from published clinical and preclinical studies. Individual responses may vary significantly. This is not a guarantee of effects or a dosing schedule. Consult qualified healthcare providers for personalized guidance.

Quality Checklist

Visual indicators to help evaluate SLU-PP-332 product quality

Good Signs (5 indicators)
Provided as research-grade chemical with certificate of analysis (COA)
Purity verified by HPLC (>95%)
Mass spectrometry confirmation of molecular weight
Proper storage conditions maintained (cool, dry, protected from light)
Sold by established research chemical suppliers
Warning Signs (5 indicators)
No certificate of analysis provided
Purity below 95%
Inconsistent appearance between batches
Sold with implied human use claims
Marketed as 'exercise in a pill' or similar
Bad Signs (6 indicators)
No purity testing documentation
Claims of human safety or efficacy
Sold in capsule or tablet form for consumption
Marketing that violates research chemical disclaimers
Supplier has no verifiable quality control processes
Unusual color or appearance inconsistent with chemical specifications
Positive quality indicator
Requires evaluation
Potential quality issue

For Research Evaluation Only

These quality indicators are general guidelines based on typical peptide characteristics. Professional laboratory testing (HPLC, mass spectrometry) provides definitive quality verification. This checklist is for initial visual evaluation only.

Peptide Interactions

Known and theoretical interactions when combining SLU-PP-332 with other peptides. Based on published research and mechanistic considerations.

Synergistic
Compatible
Caution
Avoid

Different mechanisms (metformin primarily affects hepatic gluconeogenesis and AMPK, SLU-PP-332 targets ERR in muscle). Theoretical complementary effects but no combined studies.

Non-overlapping mechanisms. BPC-157 focuses on tissue repair while SLU-PP-332 targets metabolic pathways. No known contraindications.

Non-overlapping mechanisms. TB-500 focuses on tissue repair and cell migration while SLU-PP-332 targets ERR-mediated metabolic pathways. No interaction data available.

Both target exercise-mimetic pathways (AICAR via AMPK, SLU-PP-332 via ERR). Combined activation of these parallel pathways has not been studied. Theoretical synergy but unknown safety profile.

Both target metabolic enhancement through nuclear receptor modulation (SR9009 via REV-ERB, SLU-PP-332 via ERR). No interaction data available. Exercise caution with combined metabolic modulators.

GW501516 development was halted due to cancer concerns in animal studies. Combining with another metabolic modulator increases theoretical risk. Neither compound has human safety data.

Research Note: Interaction data is based on published literature, mechanistic understanding, and theoretical considerations. Most peptide combinations lack direct clinical study. This information is for educational purposes only and does not constitute medical advice. Always consult qualified healthcare providers.

References

Methodology Note

This dossier synthesizes available evidence from peer-reviewed literature, regulatory documents, and clinical trial registries. Evidence strength ratings follow a modified GRADE approach.

For complete methodology details, see our Methodology page.

Important Disclaimer

This dossier is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before making health decisions.

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