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. 2024 Jun 20;24:208. doi: 10.1186/s12876-024-03297-6

Table 3.

Scores and key comments of 13 criteria for VPZ and TPZ

Criteria Scores (mean ± SD) Comments
Disease severity 2.9 ± 0.6

Morbidity: There was no elevated risk of all-cause mortality associated with GERD.

Progression: Most patients remained stable or showed improvement in their grade of esophagitis in 5 years. There was a positive association between reflux symptoms and the risk of esophageal adenocarcinoma.

Quality of life: Respondents with GERD experienced heartburn, eating and drinking problems, sleep impairment, reduced work productivity, etc.

Size of the affected population 3.5 ± 1.1

Age-standardized prevalence of GERD in China is below 5%.

Around 3,000 patients annually have been diagnosed with GERD in the study’s host hospital.

Unmet needs 4.2 ± 0.6

PPI response rate: 10–54% of patients with GERD symptoms failed to respond to a standard-dose PPI.

PPI compliance: PPIs are used before meals and take 3–5 days to achieve a steady-state antisecretory effect.

Nocturnal acid breakthrough: More than 70% of patients treated with PPIs had NAB.

Genetic polymorphism: CYP2C19 genetic polymorphism causes significant inter-individual pharmacodynamic

variability with PPI treatment.

Comparative effectiveness

VPZ 3.9 ± 1.1

TPZ 3.4 ± 1.0

VPZ and TPZ are non-inferior to PPIs for patients with GERD.

VPZ may be more effective than PPIs for severe erosive esophagitis.

Nocturnal pH ≥ 4 HTRs of VPZ and TPZ were greater than PPIs.

24-hour pH ≥ 4 HTRs of VPZ were greater than PPIs.

The acid inhibitory effects of VPZ and TPZ are irrespective of the CYP2C19 genotype.

Comparative safety

VPZ 3.0 ± 0.6

TPZ 3.1 ± 0.5

Safety of VPZ and TPZ is comparable with PPIs.
Comparative patient-perceived health

VPZ 2.5 ± 1.0

TPZ 2.4 ± 1.2

There were no substantial differences in improvement of heartburn between VPZ and PPIs.

Nocturnal heartburn improvement of VPZ and TPZ was greater than PPIs.

Type of preventive benefit

VPZ 3.6 ± 0.9

TPZ 3.4 ± 1.0

Long-term maintenance therapy and on-demand therapy with VPZ and TPZ can reduce the GERD recurrence rate.
Type of therapeutic benefit

VPZ 4.1 ± 0.9

TPZ 3.8 ± 1.1

The therapeutic target is to relieve symptoms, heal, prevent complications, and improve health-related quality of life.

The therapeutic effect is mainly shown in improvement of reflux esophagitis healing rate, GerdQ/FSSG/GOS scores, heartburn symptoms, etc.

Costs of intervention

VPZ 0.9 ± 0.7

TPZ − 0.6 ± 0.5

In 2022, China’s per capita disposable income reached ¥36,883.

The treatment phase takes 8 weeks, VPZ costs ¥558.88, and TPZ costs ¥626.08.

The maintenance phase, VPZ costs ¥4.945 daily, TPZ costs ¥5.59 daily.

Other medical costs

VPZ 1.3 ± 0.9

TPZ 0

VPZ generates incremental QALYs at a lower cost compared with PPIs.

TPZ retrieved no evidence.

Non-medical costs

VPZ 0

TPZ 0

Neither VPZ nor TPZ retrieved evidence.
Quality of evidence 2.4 ± 0.7

The quality of evidence on which the comparison data are based is highly relevant and valid.

There is still a lack of direct comparisons between VPZ and TPZ.

Expert consensus/clinical practice guidelines 3.5 ± 1.0 The results of the current expert opinions and clinical practice guidelines clearly indicate that PPIs and P-CABs are the first-line treatment for GERD.

Notes: VPZ, vonoprazan; TPZ, tegoprazan; GERD, gastroesophageal reflux disease; NAB, nocturnal acid breakthrough; PPIs, proton-pump inhibitors; CYP2C19, cytochrome P450 2C19; pH ≥ 4 HTR, pH ≥ 4 holding time ratio; GerdQ, GERD questionnaire; FSSG, Frequency Scale for the Symptoms of GERD; GOS, Global Overall Symptom; QALYs, quality adjusted life years; P-CABs, potassium-competitive acid blockers