The duration of the obesity trial, and the questions it leaves open

Published 24 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
At 48 weeks the highest retatrutide group had lost 24.2 per cent of body weight and the curve had not flattened. The trial therefore establishes a large effect over one year and leaves open where the plateau lies, what happens beyond it, and what happens after stopping. Those are questions phase 3 and extension studies are designed to answer.

What one year establishes

That the effect is sustained over a clinically meaningful period, that it continues to grow through the escalation period and well beyond, and that common adverse events have been observed through a full year of exposure. Forty-eight weeks is a standard phase 2 duration for this class.

It is long enough to show direction and magnitude; it is not long-term.

The plateau question

Weight loss with incretin agents typically slows and levels off after a period on a stable dose. The retatrutide curves had not levelled by 48 weeks in the higher groups, which the authors note. Where the plateau falls, and whether the final magnitude exceeds the 48-week figure, cannot be read from a trial that ended before it.

Phase 3 trials of longer duration are designed to answer this.

What a year cannot tell you

Durability beyond a year, rare adverse events, and what happens after treatment stops — for the class, regain after cessation has been documented, and for retatrutide no cessation data have been published. A 48-week result is a 48-week result.

Retatrutide is supplied by REVIVE LAB UAE as an investigational research material for laboratory use only, with identity by mass spectrometry and purity by HPLC for the batch. It is not approved for any use anywhere, and no dosing, administration or protocol guidance is provided.

What it costs

FormatStrengthPriceAvailability
Retatrutide Pack20 mgAED 1010In stock

Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.

Frequently asked

What one year establishes?

That the effect is sustained over a clinically meaningful period, that it continues to grow through the escalation period and well beyond, and that common adverse events have been observed through a full year of exposure. Forty-eight weeks is a standard phase 2 duration for this class.

Does REVIVE LAB UAE provide dosing guidance?

No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.

How fast is delivery in the UAE?

Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.

Retatrutide Pack — in stock, dispatched from Dubai
HPLC-verified, lot certificate on every carton, 24-hour delivery nationwide. Browse the catalogue → All peptides UAE

Related reading

Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.