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FTPP-Adipotide

Weight Management

Also known as: Adipotide, CKGGRAKDC-GG-D(KLAKLAK)2, Prohibitin-targeting peptide

Half-life: ~hours

Last reviewed:  ·  Published:

Weight LossFat Loss

Overview

FTPP-Adipotide (often just "Adipotide") is a synthetic chimeric peptide that combines two functional elements: a "homing" sequence (CKGGRAKDC) that binds prohibitin on the endothelial cells of white adipose tissue vasculature, and a pro-apoptotic "D(KLAKLAK)2" sequence that triggers mitochondrial apoptosis once delivered into the cell. The combined molecule selectively kills the blood vessels supplying white fat tissue, causing rapid loss of fat mass through ablation of its vascular support — a mechanism completely different from caloric restriction, lipolysis-promoting peptides, or GLP-1 agonists.

In preclinical studies, particularly the influential 2011 Science Translational Medicine paper by Wadih Arap and colleagues at MD Anderson, Adipotide produced substantial weight loss in obese rhesus monkeys (10-11% body weight loss over 4 weeks) along with improvements in insulin sensitivity. The mechanism is specific enough that brown adipose tissue and other vascular beds were largely spared.

The trade-off is that this is a far more aggressive intervention than other weight-loss peptides. Renal toxicity was observed in the primate studies (the kidney has prominent prohibitin expression in its vasculature), and the destruction of fat-tissue vasculature is not a subtle effect. The compound has not advanced to substantial human clinical trials. It is sold by some research-chemical vendors for animal-model research and (rarely) for highly motivated self-experimentation. The risk profile is meaningfully higher than that of any other peptide on this site and self-experimentation is strongly discouraged.

History

FTPP-Adipotide was developed by the laboratories of Wadih Arap and Renata Pasqualini, who pioneered the technique of "in vivo phage display" to identify vasculature-specific homing peptides. The homing sequence CKGGRAKDC was identified through phage screens of adipose tissue vasculature. The complete chimeric Adipotide molecule was characterized through the 2000s and reached the rhesus monkey study in 2011. Despite the dramatic preclinical results, human clinical development has not advanced substantially, in part because of concerns about renal toxicity and in part because GLP-1 agonists (semaglutide, tirzepatide) have provided a much safer and more practical pharmacological route to substantial weight loss.

Effects

  • Selective destruction of white adipose tissue vasculature
  • Rapid weight and fat loss in primate models
  • Improved insulin sensitivity
  • Brown adipose tissue largely spared
  • Mechanism distinct from lipolytic / appetite-suppressing peptides

Side Effects

  • Renal toxicity (prohibitin expressed in kidney vasculature) — significant safety concern
  • Possible damage to other prohibitin-expressing vascular beds
  • Injection-site reactions
  • Limited human safety data
  • Acute inflammatory response from adipose vascular death

Tolerability

Adipotide is much more aggressive than any other weight-loss peptide and carries genuine safety concerns. The renal toxicity observed in the primate studies is the most significant signal — the kidney's vasculature has prohibitin expression similar to fat's, and the targeting is not as selective as the marketing implies. Acute inflammatory effects from vascular destruction in fat tissue can be uncomfortable. Self-experimentation with this peptide is not appropriate for non-research contexts.

Dosing Ranges

Animal research (rhesus monkey model)

Dose Range

0.43 mg/kg

Frequency

Daily SubQ × 28 days

Duration

Per published protocol

Human self-experimentation

Dose Range

Not recommended

Frequency

Duration

Dosing information is for educational purposes only. Consult a healthcare professional before using any peptide.

Reconstitution

Preparation Details

Typical Vial Size

5 mg

Water Type

Bacteriostatic water (BAC water)

Mixing Volume

1-2 mL

Half-Life

~hours

Molecular Weight

~2,800 Da

Store reconstituted vial refrigerated at 2-8°C. Use within 14-21 days. Subcutaneous administration in animal models.

Calculate FTPP-Adipotide dose

Regulatory Status

FDA Status

Not FDA approved.

Legal Status

Unregulated research chemical. Prohibited by WADA.

USA

Not approved

Research-only; clinical development not actively advancing

EU

Not approved

Not authorized as medicinal product

UK

Not approved

Classified as research chemical

Australia

Not approved

TGA has not evaluated

Canada

Not approved

Not authorized for human use

Cited Studies

Reversal of obesity by targeted ablation of adipose tissue

Kolonin MG, Saha PK, Chan L, Pasqualini R, Arap W

Nature Medicine (2004)

Foundational paper demonstrating the proof-of-concept that targeting adipose vasculature with a chimeric prohibitin-binding peptide could reverse obesity in mice, establishing the rationale for Adipotide development.

View Study →

Targeted ablation of vascular endothelial cells for adipose tissue weight loss in a primate model

Barnhart KF, Christianson DR, Hanley PW, Driessen WH, Bernacky BJ, Baze WB, Wen S, Tian M, Ma J, Kolonin MG, Saha PK, Do KA, Hulvat JF, Gelovani JG, Chan L, Arap W, Pasqualini R

Science Translational Medicine (2011)

The pivotal rhesus monkey study showing Adipotide produced 10-11% body weight loss with improved insulin sensitivity, alongside the renal toxicity signal that has limited clinical translation.

View Study →

In vivo phage display: a window into the brain microvasculature and beyond

Pasqualini R, Arap W

Methods (2017)

Methodological review of the in vivo phage display technique that enabled identification of the adipose-vasculature homing sequence used in Adipotide, providing context for the underlying technology.

View Study →

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