Where the trials were run, and why geography shapes the evidence

Published 24 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
Both phase 2 trials were conducted at sites in the United States, and their populations reflect that: predominantly white, with baseline characteristics typical of US trial cohorts. Phase 3 programmes are typically multinational. A result in one population is applied to others by assumption until data from those populations exist.

Where phase 2 was run

The NEJM obesity trial and the Lancet diabetes trial enrolled at sites in the United States. The baseline tables show populations that were mostly white and reflect the demographics of US trial recruitment. The papers state this and list it among their limitations.

Single-country phase 2 trials are common; they are faster to run and sufficient for dose-finding.

Why location matters

Body composition at a given body-mass index, the prevalence of diabetes at a given weight, diet, and genetic variation in drug metabolism all differ between populations. An effect size and an adverse-event profile measured in one may not transfer unchanged to another. This is a recognised limitation across the class and is why regulators look for diverse enrolment in phase 3.

For readers in the Gulf, where metabolic disease patterns differ from the US, this is a live consideration rather than a formality.

What phase 3 adds

The TRIUMPH trials are multinational by registration, which will broaden the populations the evidence describes. Until they report, the phase 2 populations are the ones the published results speak to.

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

Where phase 2 was run?

The NEJM obesity trial and the Lancet diabetes trial enrolled at sites in the United States. The baseline tables show populations that were mostly white and reflect the demographics of US trial recruitment. The papers state this and list it among their limitations.

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.