SLU-PP-332

Key points

• SLU-PP-332 is a small molecule that activates a group of proteins (the ERR family) involved in energy use in cells.
• It is studied as an exercise mimetic, for effects on metabolism, endurance and fat.
• The evidence is preclinical, mainly from mice. There are no human trials.
• It is not a licensed medicine in the UK and is sold only for research use.

Quick facts

What it is

Experimental exercise mimetic (small molecule)

Studied for

Metabolism, endurance, fat

UK status

Not a licensed medicine; sold for research use

Human evidence

None; animal studies only

In sport

Metabolic modulators are prohibited

How it works

The ERR family of proteins helps control how cells produce and use energy, the kind of activity that ramps up with exercise. SLU-PP-332 switches these on, which in mice has been linked to greater endurance and less weight gain. Whether this translates into anything useful, or safe, in people is unknown.

What the evidence shows

The findings are from animal studies. There are no human trials, no established dose, and no clear safety picture. The exercise mimetic idea is promising in the laboratory and entirely unproven in people.

What it does not settle

• There are no human trials of benefit or safety.
• There is no established human dose.
• Long term effects are unknown.

Side effects

Less common but serious

• Human safety is unstudied, so the risks are simply not known.
• Because there is no licensed product, the dose, purity and contents of material bought online cannot be verified.

Report any suspected side effect through the MHRA Yellow Card scheme.

UK legal status and access

SLU-PP-332 has no UK marketing authorisation, so it is not a licensed medicine and is not offered by registered clinics or pharmacies. It is sold online as a research chemical. Metabolic modulators of this kind are also prohibited in sport.

Common questions