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Clinical evidence & user stories

The science. The stories. The evidence.

Oprimaze was built around a documented physiological problem. These are the peer-reviewed studies that define it — and the real journeys of people who found a better way through it.

Clinical evidence

Four numbers that define the problem.

These figures are not Oprimaze trial data. They're published peer-reviewed outcomes that show why a two-phase approach is a biological necessity, not a preference.

80%.

Regain within 5 years

Adults who lose ≥10% body weight without ongoing structured maintenance regain the majority within five years.

— Wing & Phelan, Am J Clin Nutr, 2005

2×.

Hunger hormone surge

Appetite-stimulating hormone levels remain about twice their pre-diet baseline a year after weight loss.

— Sumithran et al., NEJM, 2011

67%.

Discontinuation at 1 year

A majority of people on injectable therapy do not continue at one year — exposing them to the regain window with no structured alternative.

— Wilding et al., Diabetes Obes Metab, 2023

⅔.

Regain post-injectable

About two-thirds of weight lost on injectable therapy returned within 12 months of stopping in a controlled clinical trial.

— Rubino et al., JAMA, 2022

Man holding up the Oprimaze Weight Loss nasal spray

In real hands

A spray people actually stick with.

The best protocol is the one you keep doing. No needles to dread, no prescriptions to renew — that's why adherence is the quiet advantage of the two-spray system.

User stories

Real journeys. Real outcomes.

Names abbreviated. Stories shared with permission. Individual results vary.

“I'd tried two injectable therapies and stopped both because of the nausea. The spray gave me appetite support without making me feel sick.”
M.Phase 01
“I'd lost the weight twice already and put it back on each time. Phase 02 felt like the first thing actually built for the after.”
J.Phase 02
“Using both phases together gave me a structure for the whole journey, not just the start.”
S.Phase 01 + 02

Scientific references

Full reference list.

  1. [1]Wing RR, Phelan S. Long-term weight loss maintenance. Am J Clin Nutr. 2005;82(1 Suppl):222S-225S.
  2. [2]Sumithran P, et al. Long-term persistence of hormonal adaptations to weight loss. N Engl J Med. 2011;365(17):1597-1604.
  3. [3]Rubino D, et al. Effect of continued weekly subcutaneous semaglutide vs placebo on weight loss maintenance. JAMA. 2022;327(2):138-150.
  4. [4]Wilding JPH, et al. Discontinuation rates and outcomes for GLP-1 receptor agonists. Diabetes Obes Metab. 2023.
  5. [5]Fothergill E, et al. Persistent metabolic adaptation 6 years after “The Biggest Loser” competition. Obesity. 2016;24(8):1612-1619.
  6. [6]Paudel KS, et al. Cannabidiol bioavailability after nasal and oral administration. Drug Deliv. 2010.
Read the science pageWhy Oprimaze