Why 24.2 against 14.9 is not a result

Published 24 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
Different trials enrol different participants, run for different durations, escalate doses differently, and show different placebo responses. A headline figure from one and a headline figure from another therefore differ for reasons that have nothing to do with the molecules. Only randomisation within a single trial removes those differences.

The sources of difference

Baseline weight and health, age, sex distribution, the proportion with diabetes, trial duration, escalation schedule, the intensity of lifestyle counselling, dropout handling and the placebo response. Each varied between the retatrutide phase 2 trial and the phase 3 trials of approved agents. Each affects the headline number.

The retatrutide obesity trial, for instance, excluded people with diabetes and ran 48 weeks; STEP 1 ran 68 weeks; SURMOUNT-1 ran 72 weeks.

Why randomisation is the fix

Within one trial, participants are allocated to arms by chance, so the arms are alike in everything except the intervention. A difference between arms is therefore attributable to the intervention. Between trials no such allocation exists, and the difference is attributable to everything.

This is the entire reason head-to-head trials are run, and the reason their absence for retatrutide against approved agents is a real gap rather than a formality.

What indirect methods can offer

Network meta-analysis estimates comparisons between agents never tested together, using the chain of trials that connect them through common comparators. The estimates carry wider uncertainty than direct trials and depend on the assumption that trials are similar enough to connect. They are better than placing headlines side by side and weaker than a direct trial.

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

The sources of difference?

Baseline weight and health, age, sex distribution, the proportion with diabetes, trial duration, escalation schedule, the intensity of lifestyle counselling, dropout handling and the placebo response. Each varied between the retatrutide phase 2 trial and the phase 3 trials of approved agents. Each affects the headline number.

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.