Just 37 years old, Chen Zhi is accused of being “the mastermind behind a sprawling cyber-fraud empire… a criminal enterprise built on human suffering”.
With his wispy goatee beard and baby-faced features, he looks even younger than he is. He has certainly become very wealthy, very quickly.
Last week the US Department of Justice charged him with running scam compounds in Cambodia that stole billions in cryptocurrency from victims all over the world. The US Treasury Department has confiscated more than $14bn (£10.5bn) worth of bitcoin that it says is linked to him – it said this was the largest ever crypto-currency seizure.
His own company, the Cambodian Prince Group, describes him on its website as “a respected entrepreneur and renowned philanthropist” whose “vision and leadership have transformed Prince Group into a leading business group in Cambodia that adheres to international standards”. The BBC has contacted the Prince Group for comment.
So, how much do we know about Chen Zhi, the mysterious figure allegedly running a scam empire?
A startling rise
Brought up in Fujian province in south-eastern China, he started with a small, and apparently not very successful internet gaming company, and moved to Cambodia in either late 2010 or 2011, where he began working in the then-booming real estate sector.
His arrival coincided with the start of a speculative property boom in Cambodia. It was fuelled by the availability of large tracts of land expropriated by powerful, politically-connected figures and by a flood of Chinese capital.
Some of it was pouring in on the tail end of Xi Jinping’s Belt and Road Initiative to export Chinese-made infrastructure, and some of it was from individual Chinese investors seeking more affordable alternatives to China’s overheated property market. The number of Chinese tourists visiting Cambodia was also rising fast.
The skyline of the capital Phnom Penh changed dramatically. The characterful, low-rise cityscape of mustard-coloured French colonial mansions was transformed into another Asian high-rise forest of glass and steel towers.
The transformation of Sihanoukville, a once quiet little seaside resort, was even more extreme. It was not just Chinese holidaymakers and property speculators heading there, but also gamblers – gambling is illegal in China.
New casinos sprang up, alongside gaudy, luxury hotels and apartment blocks. There was plenty of money to be made.
Even so, Chen Zhi’s trajectory was startling.
In 2014 he became a Cambodian citizen, giving up his Chinese nationality. This enabled him to buy land in his own name, but required a minimum investment or donation to the government of $250,000.
It was never clear where Chen Zhi’s money came from. When applying for a bank account on the Isle of Man in 2019 he listed an unnamed uncle who he said had given him $2m to start his first property company in 2011, but no evidence for this was ever provided.
Getty Images
Sihanoukville has been transformed by Chinese investment
Chen Zhi founded the Prince Group in 2015, focused on property development, when he was still only 27 years old.
He got a commercial banking licence in 2018 to establish Prince Bank. The same year he obtained a Cypriot passport, in return for a minimum investment there of $2.5m, giving him easy access to the European Union. He later acquired Vanuatu citizenship as well.
He started Cambodia’s third airline, and in 2020 obtained a certificate to operate a fourth. There were luxury malls in Phnom Penh built by the Prince property arm, five-star hotels in Sihanoukville, and an ambitious scheme to construct a $16bn “eco-city” called “Bay of Lights” there.
In 2020 Chen Zhi was awarded the highest title bestowed by Cambodia’s king, that of “Neak Oknha”, which requires a donation of at least $500,000 to the government.
He had already been made an official adviser to Interior Minister Sar Kheng since 2017, was a business partner with his son Sar Sokha, and an official adviser to Cambodia’s most powerful man Hun Sen, and later his son Hun Manet after he succeeded his father as prime minister in 2023.
Chen Zhi was lauded in the local media as a philanthropist, who had funded scholarships for low-income students and donated substantially to help Cambodia deal with the Covid pandemic.
Yet he remained an enigmatic figure, staying out of the limelight, making few public statements.
AFP via Getty Images
A branch of the Prince Bank in Phnom Penh
“Everyone I’ve spoken to who’s worked with him directly, been in the room with him, they all describe him as very courteous, very calm, very measured,” says Jack Adamovic Davies, a journalist who did a three year-long investigation of Chen Zhi which was published by Radio Free Asia last year.
“I think not being the kind of flamboyant person that people will write tabloid-y things about was smart. Even those who no longer want to be associated with him are still impressed by his quiet charisma, his gravitas.”
But where was all this wealth and power coming from?
‘A litany of transnational crimes’
In 2019 the property bubble burst in Sihanoukville. The online gambling business had attracted Chinese criminal syndicates, who then began violent turf wars with each other. Tourists were scared off.
Under pressure from China, then-prime minister Hun Sen banned online gambling in August that year. Around 450,000 Chinese left the city as its main business collapsed. Many of Prince Group’s residential blocks were left empty.
Yet Chen Zhi continued to expand his business interests and spend freely.
According to the UK authorities, in 2019 he bought a £12m mansion in north London and a £95m office block in the city’s financial district. The US says he and his associates bought properties in New York, private jets and superyachts, and a Picasso painting.
And, they allege, Chen Zhi’s wealth came from the most profitable business in Asia today, online fraud, and the human trafficking and money laundering that go with it.
The US and UK have imposed sanctions on 128 companies linked to Chen Zhi and Prince Group, and on 17 individuals from seven different nationalities who they allege helped run his scam empire. Assets linked to Chen Zhi in the US and UK have been frozen.
US District Court EDNY
Court documents contained images of “phone farms” allegedly used to conduct scams
The sanctions announcement describes an elaborate web of shell companies and cryptocurrency wallets through which money was moved to conceal its origins.
It says: “Prince Group Transnational Crime Organisation profits from a litany of transnational crimes including sextortion – a type of fraud involving the solicitation for eventual blackmail of sexually explicit materials, often from minors – money laundering, various frauds and rackets, corruption, illegal online gambling, and the industrial-scale trafficking, torture, and extortion of enslaved workers in furtherance of the operation of at least 10 scam compounds in Cambodia.”
The ‘scam empire’
China too had been quietly investigating the Prince Group since at least 2020. There have been a number of court cases accusing the company of running online fraud schemes.
The Beijing Municipal Public Security Bureau has established a task force “to investigate the “Prince Group, a major transnational online gambling syndicate based in Cambodia”.
At its heart, the US and UK allege, were businesses like Golden Fortune Science and Technology Park, a compound built by the Prince Group in Chrey Thom, close to the Vietnamese border.
In the past the Prince Group has denied any involvement in scams, and said it no longer has any connection to Golden Fortune, but the US and UK investigation argues that there is still a clear business link between them.
Mr Adamovic Davies interviewed a number of people living and working near Golden Fortune for his investigation into Chen Zhi. They described brutal beatings of the mainly Chinese, Vietnamese and Malaysians who tried to escape from the compound, where they were forced to run online scams.
“I think it’s the sheer scale of his operations which really makes Chen Zhi stand out,” he says, adding that it is shocking the Prince Group was able to build a “global footprint” without raising alarm bells given the serious criminal charges it now faces.
“What should be uncomfortable for a lot of people is that Chen Zhi should never have been able to acquire all these assets, in Singapore, London or the US. Lawyers, accountants, real estate agents, bankers, all should have been looking at this group and saying, hang on, this doesn’t add up. And they didn’t.”
AFP via Getty Images
The Prince International Plaza in Phnom Penh
Today, after all the publicity generated by the US and UK sanctions, businesses are rushing to dissociate themselves from the Prince Group.
The Cambodian Central Bank has had to issue a statement to nervous depositors assuring them they will be able to withdraw their funds from Prince Bank. The South Korean authorities have frozen $64m of its deposits held by Korean banks.
The Singapore and Thai governments are promising investigations into Prince subsidiaries in their jurisdictions – of the 18 individuals targeted by the US and UK, three are Singaporeans.
Cambodia’s government has said little, apart from urging the US and UK authorities to be sure they have sufficient evidence for their allegations.
But it will be difficult for Cambodia’s ruling elite to distance themselves from Chen Zhi, after being so close to him for so long. Cambodia was already facing growing pressure over its tolerance of scam businesses, which some estimate may account for around half of the entire economy.
And what of Chen Zhi himself?
Nothing has been heard or seen of him since the sanctions were announced last week. The enigmatic tycoon, once among the most powerful figures in Cambodia, appears to have vanished.
French President Emmanuel Macron told European Union leaders to consider using the bloc’s most powerful trade tool against China if they aren’t able to find a resolution to Beijing’s planned export controls on critical raw materials.
Macron said they need to weigh using all options available against China, including the EU’s so-called anti-coercion instrument, according to people familiar with the matter.
(Bloomberg) — French President Emmanuel Macron told European Union leaders to consider using the bloc’s most powerful trade tool against China if they aren’t able to find a resolution to Beijing’s planned export controls on critical raw materials.
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Macron said they need to weigh using all options available against China, including the EU’s so-called anti-coercion instrument, according to people familiar with the matter.
He made the statement to his counterparts during a leaders’ summit in Brussels Thursday, said the people, who spoke on the condition of anonymity. The French presidency didn’t respond to a request for comment.
“This is economic coercion,” Macron told reporters after the summit, referring to the Chinese announcement on rare earths, without commenting on the specifics of the closed-door conversation. “We can see the impact it is having on us and we need to be able to respond.”
China announced plans to significantly tighten controls on its exports of rare earths and other critical materials earlier this month. Under the measures, overseas exporters of items that use even traces of certain rare earths sourced from China would need an export license.
The export restrictions would pose a massive threat to Europe’s industry and security, as the inputs are critical across sectors and used in everything from electric vehicle batteries to defense manufacturing.
Following the summit, German Chancellor Friedrich Merz confirmed that the anti-coercion tool was discussed but that no decision had been reached on using it. He said it was now up to the European Commission, which handles trade matters for the EU, to decide whether to deploy the ACI.
The ACI, which has never been used, was designed primarily as a deterrent, and if needed, to respond to deliberate coercive actions from third countries that use trade measures as a means to pressure the policy choices of the EU or its members.
The instrument was created as part of the EU’s effort to boost its trade defenses after the US imposed tariffs on the bloc’s exports during the first Trump administration. Another factor was China’s decision to place restrictions on Lithuanian goods after Taiwan opened a trade office in the Baltic nation.
Use of the EU’s most potent trade tool is unlikely at this stage as it would significantly escalate tensions with China. France has called for using the instrument before, including during trade talks with the US. But the drive never fully gained traction.
The commission is currently working on options that it could use if a diplomatic solution with China isn’t found.
The commission is preparing a list of trade measures by the end of the month that can later be deployed against China to boost its negotiating leverage on the issue, Bloomberg reported earlier. The commission is also developing a plan to protect critical supplies in the short-term and secure other sources.
The EU’s trade chief Maros Sefcovic held talks with his Chinese counterpart, Wang Wentao, earlier this week on the proposed export restrictions.
“We have no interest in escalation,” Sefcovic told reporters after the call Tuesday. “However, this situation casts a shadow over our relationship, therefore a prompt resolution is essential.”
–With assistance from Alberto Nardelli and Arne Delfs.
(Updates with Macron quote in the fourth paragraph.)
Traders work on the floor at the New York Stock Exchange (NYSE) in New York City, U.S., Oct. 22, 2025.
Brendan McDermid | Reuters
Stock futures are little changed Thursday night ahead of a key inflation print.
Futures tied to the Dow Jones Industrial Average fell 13 points, or 0.03%. S&P futures ticked up 0.06%, while Nasdaq 100 futures added 0.1%.
In after-hours trading, Intel shares popped nearly 7% after the chipmaker reported third-quarter sales that exceeded analysts’ estimates. Target shares rose marginally after the retailer announced it would slash its corporate workforce by 8%, marking its first major layoff in a decade. Applied Materials and Rivian also announced layoffs.
The three major U.S. indexes ended the previous session higher, driven by inflows into tech stocks and bullish sentiment heading into the heat of third-quarter earnings season. The S&P 500 rose nearly 0.6%, while the Dow Jones Industrial Average gained 144 points, or 0.3%. The tech-heavy Nasdaq Composite outperformed, closing the day 0.9% higher as heavyweight AI stocks such as Nvidia and Oracle got a boost.
Investors are awaiting Friday’s release of the September consumer price index report, which could be a market-moving event given the lack of federal data being released amid the ongoing U.S. government shutdown. Wall Street will be watching for any signs on if inflation is cooling or getting hotter, and if tariffs are affecting consumer prices.
The CPI, which was supposed to be released Oct. 15, will be the last economic reading before the Federal Reserve’s October meeting next week. Markets widely expect the Fed to lower interest rates by another quarter percentage point.
“Markets remain cautious, as the lack of clean economic data adds uncertainty for both the Fed and investors,” said Vishal Khanduja, head of broad markets fixed income at Morgan Stanley Investment Management. “Until more reliable data emerges, the Fed is likely to adhere to market-priced expectations, though Friday’s CPI should provide greater clarity. The impact of tariffs creeping into inflation will be key.”
Stocks are on pace to notch weekly gains, after Thursday’s moves erased Wednesday’s losses. The S&P 500 is tracking for a 1.1% gain, while the Nasdaq and the 30-stock Dow are up nearly 1.2%.
(Reuters) -AI data centre startup Crusoe is raising $1.38 billion at a valuation of about $10 billion from an anticipated Series E funding round, the Denver-based company said on Thursday
The oversubscribed round is being co-led by Valor Equity Partners and Mubadala Capital and includes Nvidia, Fidelity Management and Founders Fund as some of its major investors.
The company, which was involved in building OpenAI’s first big data centre in the U.S., has raised about $3.9 billion since its inception in 2018.
It recently announced that the first phase of its 1.2 gigawatt data center in Abilene, Texas campus, was live just one year after construction began.
(Reporting by Anuj T in Bengaluru; Editing by Anil D’Silva)
The FDA has approved belantamab mafodotin-blmf (Blenrep) in combination with bortezomib (Velcade) and dexamethasone (BVd) for the treatment of adult patients with relapsed or refractory multiple myeloma who have received at least 2 prior lines of therapy, including a proteasome inhibitor (PI) and an immunomodulatory agent (IMID).1
The approval is supported by findings from the phase 3 DREAMM-7 (NCT04246047) trial. In the study, among patients who had received at least 2 prior lines of therapy, including a PI and an IMID, BVd elicited a 51% reduction in the risk of death (HR, 0.49; 95% CI, 0.32-0.76) compared with DVd. Treatment with the combination also led to a median progression-free survival (PFS) of 31.3 months (95% CI, 23.5-NR) vs 10.4 months (95% CI, 7.0-13.4) with DVd (HR, 0.31; 95% CI, 0.21-0.47). The safety and tolerability profiles of DVd and BVd were consistent with the known safety profiles of the individual agents, according to the news release.
“With the approval of [belantamab mafodotin], we now have a community-accessible BCMA-targeting agent with the potential to improve outcomes for patients following 2 or more prior lines of treatment, where options are limited,” Sagar Lonial, MD, chief medical officer and chair of the Emory Department of Hematology and Medical Oncology at the Winship Cancer Institute of Emory University in Atlanta, Georgia, stated in a news release “This approval marks an important advance in the US relapsed/refractory treatment landscape.”
This approval follows a divided recommendation from the FDA’s Oncologic Drugs Advisory Committee, which voted 5 to 3 against the risk–benefit profile of the BVd regimen.2 Safety concerns raised by the committee included the high incidence of ocular toxicity, the rates of serious and grade 3 or higher adverse effects, and the overall tolerability of BVd.
“Today’s FDA approval of [belantamab mafodotin] is another significant milestone, providing potential for superior efficacy, including overall survival, to US patients,” Tony Wood, chief scientific officer of GSK, added in the news release.1 “There is an urgent need for new and novel therapies, as nearly all patients with multiple myeloma experience relapse, and re-treating with the same mechanism of action often leads to suboptimal outcomes. As the only anti-BCMA agent that can be administered across health care settings, including in community centers where 70% of patients receive care, [belantamab mafodotin] fulfills a major patient need. We believe [belantamab mafodotin] can redefine treatment for patients with multiple myeloma in all parts of the world, and we are accelerating its development in earlier lines of therapy to support its use across all stages of this difficult-to-treat cancer.”
What was the design of the DREAMM-7 study?
In the open-label DREAMM-7 trial, patients with relapsed/refractory multiple myeloma received either BVd or daratumumab (Darzalex) plus bortezomib and dexamethasone (DVd).3 Eligible patients had received at least 1 prior therapy but had not previously received a BCMA-targeted agent and were not refractory to anti-CD38 therapy.
Grade 3 or higher adverse effects (AEs) were more frequent in the BVd arm (95%) than in the DVd arm (78%). Ocular toxicity was more common in patients receiving belantamab mafodotin, occurring at a rate of 79% vs 29% in the DVd arm, but was largely reversible with dose modifications.
“The reality for most patients with multiple myeloma is a relentless cycle of remission and relapse, as their disease becomes refractory to treatments,” Michael Andreini, president and chief executive officer of the Multiple Myeloma Research Foundation and the Multiple Myeloma Research Consortium, added in the news release. “Patients urgently need more effective treatment options that can offer more quality time with their loved ones. We see the potential for [belantamab mafodotin] in combination to help patients achieve this.”
References
Blenrep approved by US FDA for use in treatment of relapsed/refractory multiple myeloma. News release. GSK. October 23, 2025. Accessed October 23, 2025. https://www.gsk.com/en-gb/media/press-releases/blenrep-approved-by-us-fda-for-use-in-treatment-of-relapsedrefractory-multiple-myeloma/
July 17, 2025, Meeting of the Oncologic Drugs Advisory Committee (ODAC). FDA. Accessed July 17, 2025. https://www.youtube.com/live/CLhBI3UXWyg
Evaluation of efficacy and safety of belantamab mafodotin, bortezomib and dexamethasone versus daratumumab, bortezomib and dexamethasone in participants with relapsed/refractory multiple myeloma (DREAMM 7). Updated October 24, 2024. Accessed October 23, 2025. https://clinicaltrials.gov/study/NCT04246047
Hungria V, Robak P, Hus M, et al. Belantamab mafodotin, bortezomib, and dexamethasone for multiple myeloma. N Engl J Med. 2024;391(5):393-407. doi:10.1056/NEJMoa2405090
Belantamab Mafodotin BLA 761440. FDA. July 17, 2025. Accessed July 17, 2025. https://www.fda.gov/media/187657/download
Oct 23 (Reuters) – Applied Materials (AMAT.O), opens new tab will cut about 4% of its workforce, or roughly 1,400 jobs, to streamline operations, the chip equipment maker said on Thursday as tighter U.S. export controls on semiconductors weigh on its business.
The company, one of the largest U.S. makers of semiconductor manufacturing equipment, will take a charge of $160 million to $180 million for the layoffs, mostly in the fourth quarter of fiscal 2025, it disclosed in a regulatory filing.
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Late in September, Washington cracked down on companies in China and other countries that use subsidiaries or other foreign affiliates to circumvent export curbs on chipmaking equipment and other goods and technology.
That has made it harder for Applied Materials and its rivals to export some products and supply specific parts and services to select China-based customers without a license. The company earlier this month forecast a $600-million hit to its fiscal 2026 revenue due to the expanded curbs.
It said it started informing its employees about the layoffs earlier on Thursday. It had 35,700 full-time staff as of October 27, 2024, according to its annual report.
“Our goal is to continue to transform how we work, move faster, simplify decision-making, and focus on what matters most as we prepare Applied Materials for significant growth in the coming years,” CEO Gary Dickerson said in a memo to employees.
Reporting by Aditya Soni in Bengaluru; Editing by Alan Barona
Our Standards: The Thomson Reuters Trust Principles., opens new tab
Helicobacter pylori (H. pylori) infections correlate with chronic active gastritis, peptic ulcer development, gastric mucosa-associated lymphoid tissue lymphoma, gastric cancer, and other digestive diseases, as well as extradigestive disorders such as cardiovascular, hematologic, and autoimmune diseases [-]. A recent meta-analysis of data from 73 countries revealed a global H. pylori infection rate of 44.3%, higher in low- and middle-income countries (50.8%) than in high-income countries (34.7%), imposing significant economic burdens []. These findings underscore H. pylori’s pervasive harm, heightening global public health concerns for its eradication []. Standard triple and quadruple therapy combining proton pump inhibitors or bismuth with 2 antibiotics is established for H. pylori eradication [,]. However, despite widespread antibiotic use, eradication rates remain suboptimal, often due to antibiotic resistance and poor patient compliance [].
Poor patient compliance significantly impacts H. pylori eradication treatment as it increases the risk of treatment failure and contributes to the development of secondary antibiotic resistance due to inadequate drug dosages [,]. According to research involving a large patient cohort, those with good compliance, defined as completing over 80% of prescribed medication regimens, achieved eradication rates of 85% to 94%, whereas those with poor compliance achieved rates of only 39% to 53% []. Various factors influence patient compliance, including the complexity of the eradication regimen, treatment duration, adverse reactions, physician motivation, and patient awareness [,]. Currently, the prevailing eradication regimen typically lasts 7 to 14 days and involves administering 3 to 4 drugs before or after meals []. However, the regimen’s complexity and extended duration pose challenges for both physicians and patients, prompting widespread discussion among gastroenterologists on how to effectively address this issue.
Objectives
To combat poor patient compliance in H. pylori eradication treatment, various strategies have been implemented to enhance medication adherence, including health education, information communication, medication guidance, feedback on adverse drug reactions, and regular question-and-answer sessions. The emergence of new media technologies—such as telephone-supported follow-ups, SMS text messaging, and social media– or app-based modules—has opened up new avenues for patient education and supervision. In this review, we define new media–based education (NME) as a form of patient education and adherence support distinct from traditional oral or paper-based approaches. It is digitally delivered and interactive, implemented through mobile or networked platforms (eg, telephone-supported follow-ups, SMS text messaging, and various social media– or software-based applications). NME typically incorporates targeted communication and reminders, multimedia educational content, and bidirectional messaging in alignment with established digital health (mobile health) frameworks [-]. Despite its widespread use, the precise impact of NME on H. pylori eradication remains uncertain. Three meta-analyses published in 2022 suggested that enhanced educational interventions may improve eradication rates and patient compliance without increased adverse events [-]. However, these reviews were limited by relatively small sample sizes and the absence of comprehensive subgroup analyses, leaving uncertainties regarding the consistency and generalizability of their findings. To address these gaps, we conducted an updated and more comprehensive meta-analysis to evaluate the efficacy of NME in improving H. pylori treatment outcomes.
Methods
Registration and Implementing Guidance
This study adhered to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines and was registered on PROSPERO under registration number CRD42024517954.
Search Strategy
We systematically searched PubMed, Embase, Web of Science, and the Cochrane Library from inception to February 2025. The review protocol was registered in PROSPERO in February 2024, and an updated search was conducted in February 2025 to ensure the inclusion of the most recent studies. Eligible study designs included randomized controlled trials (RCTs) and retrospective cohort studies evaluating NME interventions for patients with H. pylori infection. The search strategy combined MeSH (Medical Subject Headings) terms and free-text keywords such as “Helicobacter pylori,” “patient education,” “educational technology,” “mobile phone applications,” “smartphone,” “short message service (SMS),” “text messaging,” “WeChat,” “tele-education,” “internet,” and “telemedicine” using Boolean operators (AND and OR) to maximize sensitivity. An example search string for PubMed was as follows: (“Helicobacter pylori” OR “H. pylori”) AND (“patient education” OR “health education” OR “educational technology” OR “mobile phone” OR “cell phone” OR “smartphone” OR “text message*” OR “short message service” OR “SMS” OR “WeChat” OR “tele-education” OR “telemedicine” OR “digital health”) AND (“randomized controlled trial” OR “controlled clinical trial” OR “cohort study”). The reference lists of the included studies and relevant reviews were also screened to identify additional eligible articles. The complete and detailed search strategies for each database are provided in in accordance with the PRISMA 2020 reporting guidelines.
Study Selection
Two investigators independently screened the initially retrieved bibliography using a 2-stage screening process. Any discrepancies were resolved through discussion or consultation with a third investigator. In the first phase, duplicates were automatically removed, followed by manual removal of any remaining duplicates. Studies were excluded based on inclusion and exclusion criteria by reviewing titles, abstracts, and full texts.
The following inclusion criteria were used in this study: (1) participants were individuals with H. pylori infection confirmed via rapid urease test, urea breath test, stool antigen test, culture, or histology with at least one positive result and who had not previously received eradication therapy; (2) the intervention was implementation of NME methods, such as telephone-based follow-up, SMS text messaging, or mobile apps, in combination with a standard eradication regimen (triple or quadruple therapy); (3) the comparator was a standard eradication regimen with conventional oral or written instructions; (4) the primary outcomes included H. pylori eradication rate and patient compliance, and the secondary outcomes included adverse events and patient satisfaction; and (5) the study design was RCTs and retrospective cohort studies. Retrospective studies were included due to limited available evidence and their comparable design and intervention quality to those of RCTs. The exclusion criteria were as follows: (1) publications in the form of comments, letters, protocols, conference abstracts, or reviews; (2) studies with insufficient data or duplicate reports; and (3) ongoing studies without available results.
Data Extraction
Two independent investigators extracted data from eligible studies using a predefined data collection form. Discrepancies were resolved through consensus. Extracted data included study characteristics, patient demographics, outcomes, and details of risk-of-bias assessment.
Risk-of-Bias Assessment
The methodological quality of the included studies was independently assessed by 2 reviewers, with disagreements resolved by a third reviewer. For RCTs, we applied the revised Cochrane risk-of-bias tool for randomized trials (RoB 2), which evaluates 5 domains: bias arising from the randomization process, bias due to deviations from the intended intervention, bias due to missing outcome data, bias in measurement of the outcome, and bias in the selection of the reported results. Each domain was judged as “low risk,” “some concerns,” or “high risk,” and an overall risk-of-bias judgment was assigned accordingly. In total, 11 RCTs were evaluated using the RoB 2 tool.
For nonrandomized cohort studies, we used the Risk of Bias in Nonrandomized Studies of Interventions (ROBINS-I) tool, which assesses 7 domains: bias due to confounding, bias in the selection of participants, bias in classification of interventions, bias due to deviations from the intended intervention, bias due to missing data, bias in measurement of outcomes, and bias in the selection of the reported results. The overall risk of bias for cohort studies was categorized as low, moderate, serious, or critical. The 2 retrospective cohort studies included in this review were assessed using the ROBINS-I tool.
Statistical Analysis
We calculated risk ratios (RRs) and 95% CIs to evaluate associations between groups and outcomes. The primary outcomes were the pooled RRs of H. pylori eradication rate and patient compliance, whereas the secondary outcomes were pooled RRs of adverse events and patient satisfaction. We selected intention-to-treat (ITT) analysis as the primary approach because of its stronger scientific rationale, greater clinical applicability, and its ability to reflect real-world practice. Although some of the included studies (10/13, 77%) reported per-protocol (PP) data, only 69% (9/13) provided PP results for eradication, and just 31% (4/13) provided PP results for compliance. Given this limited number, it was not feasible to conduct meaningful subgroup analyses based on PP data, and conducting a pooled PP analysis under such circumstances would have resulted in too small a sample size, thereby reducing statistical robustness and potentially introducing bias. Consequently, we relied exclusively on ITT analysis to ensure the consistency, validity, and reliability of the findings while also minimizing the risk of selective reporting.
Heterogeneity was assessed using the I2 statistic, with thresholds of 25%, 50%, and 75% representing low, moderate, and high heterogeneity, respectively. In line with current recommendations, we used a random-effects model for all meta-analyses to account for potential between-study heterogeneity and provide more conservative estimates.
Prespecified subgroup analyses were conducted to explore potential sources of heterogeneity. Subgroups were stratified according to intervention type (WeChat, telephone, telephone combined with other methods, and SMS text messaging), treatment regimen (triple vs quadruple therapy), age group (≤60 vs >60 years), country socioeconomic status (high income vs low and middle income), whether baseline outpatient education was provided, and whether WeChat group functionality was used.
Sensitivity analyses were conducted by sequentially excluding each study to assess its influence on the overall effect size.
Compliance definitions varied among studies, with 100% compliance defined as taking the prescribed dose. Publication bias was assessed using funnel plots, the Egger linear regression test, and the Begg rank correlation test. All primary meta-analyses were conducted using RevMan (version 5.4.1; The Cochrane Collaboration). Additional statistical analyses, including sensitivity analyses and publication bias assessments, were conducted using the Comprehensive Meta-Analysis software (version 3.0; Biostat, Inc).
Results
Study Flow
Our initial search identified 476 potentially relevant clinical trials. After thorough review and screening, of the 476 studies, 11 (2.3%) RCTs and 2 (0.4%) retrospective cohort studies [-] met the inclusion criteria and were included in the meta-analysis. The study selection process is detailed in .
Figure 1. Flowchart of study selection.
Risk of Bias
Using the RoB 2 tool [], most of the 11 (85%) included RCTs were judged to be at low risk of bias, with some concerns mainly related to the randomization process and missing outcome data; no trial was rated as high risk (Figure S1A in ). The 2 retrospective cohort studies were assessed using the ROBINS-I tool [], which indicated a moderate risk of bias for one study [] and a serious risk for another [], largely due to confounding and limitations in participant selection and outcome measurement (Figure S1B in ).
Study Characteristics
The basic characteristics of the 13 eligible studies [-] are summarized in . These trials, conducted between 1999 and 2023, had sample sizes ranging from 80 to 566 participants, totaling 2942 across all studies. In total, 23% (3/13) of the trials [-] were conducted in high-income countries (England, the United States, and Australia), whereas the remaining 77% (10/13) [-] were conducted in low- and middle-income countries (China and Jordan). A total of 92% (12/13) of the studies [-,] reported on the eradication rate of H. pylori, 100% (13/13) [-] reported on patient compliance, 69% (9/13) [,,,,-,] reported on adverse events, and 23% (3/13) [,,] reported on patient satisfaction. The H. pylori eradication regimens included triple and quadruple therapies, with durations ranging from 7 to 14 days (). Control group patients received traditional oral and written medical instructions, whereas experimental group patients received additional intensive education instructions.
Table 1. Characteristics of the studies included in this meta-analysis.
Study
Year
Country
Type
Sample size, n
Age (y), mean
Female/male participants, n
NMEa method
Eradication regimen
Duration
Detection
Al-Eidan et al []
2002
England
Retrospective cohort study
80
50
22/54
TEL+b
Triple therapy
7 d
RUTc
Shoiab et al []
2023
Jordan
RCTd
200
—e
97/103
TEL+
Triple therapy
14 d
SATf
Lin et al []
2022
China
Retrospective cohort study
533
45
232/301
WeChat
Quadruple therapy
14 d
13C-UBTg
Wang et al []
2015
China
RCT
140
44
88/53
TELh
Triple therapy
10 d
13C-UBT
Henry and Batey []
1999
Australia
RCT
119
57
50/69
TEL+
Triple therapy
10 d
13C-UBT
Ma et al []
2021
China
RCT
566
—
—
WeChat
Quadruple therapy
14 d
14C-UBTi
Sun et al []
2022
China
RCT
226
44
128/98
WeChat
Quadruple therapy
14 d
UBTj
Lee et al []
1999
United States
RCT
125
49
90/35
TEL+
Triple therapy
14 d
—
Luo et al []
2020
China
RCT
222
50
134/88
WeChat
—
14 d
14C-UBT
Wang et al []
2019
China
RCT
310
46
148/162
SMS text messaging
Quadruple therapy
14 d
13C-UBT
Zhao et al []
2020
China
RCT
162
45
92/70
TEL+
Quadruple therapy
14 d
13C-UBT
Chen et al []
2021
China
RCT
196
44
91/105
TEL
Quadruple therapy
14 d
13C-UBT
Yang et al []
2023
China
RCT
254
35
133/121
WeChat
Quadruple therapy
14 d
13C-UBT
aNME: new media–based education.
bTEL+: telephone combined with other methods.
cRUT: rapid urease test.
dRCT: randomized controlled trial.
eNot available.
fSAT: stool antigen test.
gC-UBT: carbon-13 urea breath test.
hTEL: telephone.
iC-UBT: carbon-14 urea breath test.
jUBT: urea breath test.
Primary Outcome
H. pylori Eradication Rate
A total of 92% (12/13) of the studies involving 2819 patients reported data on patient H. pylori eradication rates. ITT analysis showed that eradication rates were significantly higher in the NME group compared with the control group (81.9% vs 67%; RR 1.22, 95% CI 1.11-1.33; P<.001; A [-]). A high level of heterogeneity was detected among the included studies (I2=78%; P<.001), but sensitivity analysis confirmed the stability of the results (A).
Figure 2. Forest plot comparing Helicobacter pylori (H. pylori) eradication in education versus control groups—subgroup analysis on intervention methods and regimens. (A) Forest plot comparing the H. pylori eradication rate between the education and control groups. (B) Subgroup analysis for H. pylori eradication rates based on different intervention methods. (C) Subgroup analysis for H. pylori eradication rates based on different treatment regimens. Control: traditional instructions; experimental: new media–based education instructions; fixed: fixed-effects model; random: random-effects model.
Subgroup Analysis of H. pylori Eradication Rate
Heterogeneous results require subgroup analysis. Subgroup analysis included different new media devices, different medication regimens, different age groups, the socioeconomic status of the country of origin, whether initial outpatient education was provided, and whether WeChat group functionality was used in conjunction with WeChat. In the intervention method subgroup, patients were categorized into WeChat, telephone, telephone with other methods, and SMS text messaging. In the medication regimen subgroup, patients were categorized into quadruple therapy and triple therapy. In the subgroup analysis of different populations, individuals were divided into age groups of ≤60 and >60 years and into high-income and low- and middle-income country groups based on the country of origin.
First, subgroup analyses were stratified according to different intervention methods. The intervention group had higher eradication rates in the WeChat subgroup (RR 1.27, 95% CI 1.10-1.47; P=.002; B). However, there was no difference in eradication rates between the intervention and control groups in the telephone (RR 1.11, 95% CI 1.00-1.23; P=.05), telephone with other methods (RR 1.26, 95% CI 0.98-1.61; P=.07), and SMS text messaging (RR 1.10, 95% CI 0.95-1.26; P=.21; B) subgroups. Subgroup analyses were then stratified according to different medication regimens. The intervention group had higher eradication rates than the control group in the quadruple therapy subgroup (RR 1.24, 95% CI 1.11-1.37; P<.001) but not in the triple therapy subgroup (RR 1.16, 95% CI 0.91-1.48; P=.23; C). In addition, compared to the control group, individuals aged ≤60 years had higher H. pylori eradication rates after NME (RR 1.21, 95% CI 1.02-1.44; P=.03), whereas those aged >60 years did not (RR 1.21, 95% CI 0.91-1.60; P=.18; A [-]). Interestingly, individuals from low- and middle-income countries showed significantly increased H. pylori eradication rates after NME compared to the control group (RR 1.24, 95% CI 1.13-1.37; P<.001), whereas there was no impact on individuals from high-income countries (RR 1.08, 95% CI 0.79-1.50; P=.62; B). Regardless of whether routine outpatient H. pylori eradication education was provided, NME yielded higher eradication rates in both the traditional (RR 1.22, 95% CI 1.03-1.43; P=.02) and nontraditional (RR 1.22, 95% CI 1.08-1.37; P=.002; C) education subgroup. Finally, using WeChat as a new media platform for H. pylori education, there was no significant difference in H. pylori eradication rates between the NME group and the control group when the WeChat group functionality was used (RR 1.21, 95% CI 0.93-1.58; P=.16; A [-]). However, when using WeChat for one-on-one education or other functionalities, the NME group showed higher H. pylori eradication rates (RR 1.31, 95% CI 1.08-1.59; P=.006; A). When the treatment duration was 14 days (RR 1.26, 95% CI 1.14-1.39; P<.001), the H. pylori eradication rate in the NME group was consistently higher than that in the control group (Figure S2A in ). However, when the duration was less than 14 days (RR 1.06, 95% CI 0.85-1.32; P=.61), there was no significant difference in eradication rates between the 2 groups (Figure S2A in ).
Figure 3. Subgroup analysis on Helicobacter pylori (H. pylori) eradication rates based on age (>60 years), country socioeconomic status (high income vs low and middle income), and education (traditional). (A) Subgroup analysis for H. pylori eradication rates based on whether patients were older than 60 years. (B) Subgroup analysis for H. pylori eradication rates based on whether patients were from high-income or low- and middle-income countries. (C) Subgroup analysis for H. pylori eradication rates based on whether patients received traditional education. Control: traditional instructions; experimental: new media–based education instructions. Figure 4. Subgroup analysis of Helicobacter pylori eradication rates and patient compliance based on whether patients used WeChat groups. (A) Subgroup analysis for Helicobacter pylori eradication rate. (B) Subgroup analysis for patient compliance. Control: traditional instructions; experimental: new media–based education instructions.
Patient Compliance
All 13 studies, involving 2942 patients, reported data on patient adherence. The analysis showed that patients in the NME group had significantly higher medication adherence compared to those in the control group (90.5% vs 73%; RR 1.27, 95% CI 1.15-1.40; P<.001; A [-]). There was high statistical heterogeneity between studies (I2=89%; P<.001), whereas sensitivity analysis showed stable results (A).
Figure 5. Forest plot comparing patient compliance in education versus control groups—subgroup analyses on intervention methods and regimens. (A) Forest plot comparing patient compliance between the education and control groups. (B) Subgroup analysis for patient compliance based on different intervention methods. (C) Subgroup analysis for patient compliance based on different eradication regimens. Control: traditional instructions; experimental: new media–based education instructions.
Subgroup Analysis of Compliance
A stratified analysis based on different NME methods and different medication regimens showed that the NME group clearly had better compliance than the control group using WeChat (RR 1.23, 95% CI 1.06-1.43; P=.005), telephone (RR 1.13, 95% CI 1.05-1.22; P=.002), telephone with other methods (RR 1.57, 95% CI 1.06-2.34; P=.02), SMS text messaging (RR 1.16, 95% CI 1.03-1.30; P=.01; B), triple therapy regimen (RR 1.56, 95% CI 1.19-2.04; P=.001), or quadruple therapy regimen (RR 1.12, 95% CI 1.05-1.20; P<.001; C). A stratified analysis based on patient age showed that NME group clearly had better compliance than the control group in the group aged ≤60 years (RR 1.14, 95% CI 1.04-1.26; P=.006) but not in the group aged >60 years (RR 0.99, 95% CI 0.69-1.42; P=.95; A). Another stratified analysis based on whether the patients were from high-income countries showed that the NME group clearly had better compliance than the control group in both the low- and middle-income country subgroup (RR 1.21, 95% CI 1.10-1.33; P<.001) and the high-income country subgroup (RR 1.80, 95% CI 1.12-2.89; P=.01; B [-]). Similarly, based on whether basic outpatient education was provided to all enrolled patients, the NME group clearly had better compliance than the control group in both the traditional education subgroup (RR 1.27, 95% CI 1.02-1.57; P=.03) and the nontraditional education subgroup (RR 1.28, 95% CI 1.14-1.44; P<.001; C). A stratified analysis based on whether WeChat group re-education was used showed that new media significantly increased patient compliance in the non-WeChat subgroup (RR 1.31, 95% CI 1.08-1.59; P=.009) but not in the WeChat subgroup (RR 1.21, 95% CI 0.93-1.58; P=.28; B). In the subgroup with a 14-day treatment duration, patient compliance was significantly higher in the NME group than in the control group (RR 1.24, 95% CI 1.12-1.37; P<.001; Figure S2B in ). In contrast, in regimens lasting less than 14 days, compliance did not differ significantly between the 2 groups (RR 1.65, 95% CI 0.97-2.82; P=.07; Figure S2B in ).
Figure 6. Subgroup analysis on patient compliance based on age (>60 years), country socioeconomic status (high income vs low and middle income), and education (traditional). (A) Subgroup analysis for patient compliance based on whether patients were older than 60 years. (B) Subgroup analysis for patient compliance based on whether patients were from high-income or low- and middle-income countries. (C) Subgroup analysis for patient compliance based on whether all patients received traditional education. Control: traditional instructions; experimental: new media–based education instructions.
Secondary Outcomes
Adverse Events
Adverse drug reactions were documented in 69% (9/13) of the studies. The primary adverse events reported included diarrhea, constipation, nausea, abdominal pain, taste disorder, and skin rash. No significant differences were found between the NME and control groups (RR 0.88, 95% CI 0.71-1.09; P=.23; Figure S3A in ). Although significant heterogeneity was present among the studies (I2=63%; P<.001), the findings remained stable in sensitivity analysis (Figure S3A in ).
Patient Satisfaction
A total of 23% (3/13) of the studies, involving 672 patients, provided data on patient satisfaction. Patient satisfaction in the NME group was notably higher than that in the control group (61% vs 47.7%; RR 1.30, 95% CI 1.13-1.49; P<.001). Low statistical heterogeneity was observed (I2=0%; P=.47; Figure S3B in ).
Sensitivity and Publication Bias Analyses
The results of this study revealed some statistical heterogeneity, which may be attributed to factors such as intervention frequency, intervention duration, patient source (ie, patients from high-income vs low- and middle-income countries), and variation in eradication regimens. Given that heterogeneity is a major concern in meta-analysis, we conducted sensitivity analyses by sequentially excluding individual studies. The pooled results for all 4 main outcomes (H. pylori eradication rate, patient compliance, adverse events, and patient satisfaction) remained stable. In addition, subgroup analyses were conducted according to intervention type, treatment regimen, age group, country socioeconomic status, provision of baseline outpatient education, and use of the WeChat group functionality.
For publication bias, we first conducted visual inspection of funnel plots and then applied the Egger linear regression test and Begg rank correlation test for the 2 primary outcomes (H. pylori eradication rate and patient compliance) as both included ≥10 studies. Although mild asymmetry was observed in the funnel plots upon visual inspection (Figure S4 in ), statistical tests did not suggest significant publication bias. For H. pylori eradication rate, the Egger test resulted in P=.93, whereas the Begg test showed a Kendall tau with continuity correction of −0.05 (P=.84). Similarly, for patient compliance, the Egger test resulted in P=.20, and the Begg test reported a Kendall tau with continuity correction of 0.32 (P=.13). These findings indicate a low likelihood of publication bias; however, the slight visual asymmetry warrants cautious interpretation of the results.
Discussion
Principal Findings
This meta-analysis delved into the impact of NME on H. pylori eradication rates using platforms such as the internet or mobile communication. Overall, NME exhibited superiority over traditional education in both H. pylori eradication rates and patient compliance. Specifically, interventions via WeChat demonstrated clear advantages over telephone and SMS text messaging interventions. However, in comparison to traditional education, NME did not significantly ameliorate the overall occurrence rate or specific adverse reactions.
Compared with previous meta-analyses [-], our study included a larger and more recent set of trials (13 studies up to February 2025), thereby enhancing statistical power and ensuring that the evidence reflected the latest data. Moreover, we conducted more comprehensive subgroup analyses, not only covering intervention type, treatment regimen, patient satisfaction, and adverse events but also further exploring patient age, country socioeconomic status, provision of baseline outpatient education, and WeChat intervention models (personalized one-on-one vs group based). These additional analyses allowed us to better explain heterogeneity and provide novel insights into the applicability and optimization of NME strategies across different populations and social contexts.
Patient compliance stands as a pivotal factor contributing to the poor eradication rate of H. pylori. Adequate compliance is pivotal for ensuring the correct implementation of any eradication program, whereas poor compliance often leads to failure [,]. Therefore, educational interventions aimed at enhancing patient compliance are essential. Particularly with quadruple therapy, which yields better H. pylori eradication effects than triple therapy but entails a broader spectrum of drugs and necessitates more frequent dosing, patients may easily overlook or miss doses []. Thus, based on the findings of this study, NME significantly bolsters H. pylori eradication rates in the quadruple therapy population.
Compared to other strategies to enhance eradication rates, such as selecting antibiotics based on drug susceptibility, educational interventions are deemed cost-effective and straightforward []. Furthermore, education can augment patient awareness of H. pylori, foster self-management, and facilitate physician-patient communication []. NME holds even more promise than traditional education methods as it equips patients to better comprehend treatment regimens, provides convenient information on adverse drug reactions and health knowledge, and offers more interactive solutions to patients’ issues []. Particularly in low- and middle-income countries, where the average educational attainment level may not match that of high-income nations, repetitive education via new media can significantly enhance understanding and, thereby, improve H. pylori eradication rates.
The intervention measures used in the studies included in this review encompassed telephone follow-ups, SMS text message reminders, and WeChat consultations. WeChat interventions were used in 38% (5/13) of the studies, all of which showcased its effectiveness in enhancing the eradication rate. WeChat serves as a valuable platform for timely communication between patients and physicians, facilitating the prompt resolution of medication-related issues.
It is pertinent to note the limitations of emerging technologies such as WeChat. The inference drawn from this study is that older individuals, who are less inclined to adopt electronic devices, may not derive as much benefit from WeChat software education. Conversely, younger and middle-aged individuals exhibit greater receptiveness to new technologies, thereby perfectly exemplifying the advantages of WeChat education. Notably, our findings suggest that education delivered through WeChat groups may be less effective compared to one-on-one interactions. This difference may be attributed to several factors. First, group-based education often lacks personalization and may dilute individual responsibility, leading to lower engagement. Second, patients may be reluctant to discuss personal health issues in a group setting due to perceived privacy concerns. Third, the passive nature of group messages can result in reduced attentiveness and limited interaction. In contrast, stand-alone applications or supervised one-on-one education offer more tailored support, thereby enhancing compliance and H. pylori eradication rates. Due to the absence of direct comparative studies across different NME delivery modes, the most effective approach or combination of methods remains uncertain.
The internet and smartphones have revolutionized information access, and mobile health apps can effectively deliver patient education []. Given the exponential growth of medical apps, evaluating their capacity to provide comprehensive health education is imperative [].
Enhancing patient compliance is not associated with potential adverse events. Given that treatment regimens usually incorporate antibiotics, side effects are often attributed to antibiotic-related adverse events []. However, different treatment schemes yield varying side effects, underscoring the significance of precisely defining adverse events in this context []. While fortified NME can mitigate adverse emotions and mild discomfort stemming from side effects through enhanced physician-patient communication, its efficacy in reducing the occurrence rate of side effects remains limited.
Given the limitations of certain studies, the findings of this review warrant cautious interpretation. Primarily, most studies (10/13, 77%) were conducted in Asia, with only 23% (3/13) originating from Western countries. This underscores the necessity for trials encompassing diverse ethnic groups as the H. pylori infection rate varies across geographic regions []. Consequently, prudence should be exercised when extrapolating the conclusions to other regions. Second, the overall sample size was relatively modest. The absence of multicenter and large-sample studies amplifies the potential for bias and error, underscoring the need for additional rigorously designed experiments. Third, the interventions spanned a spectrum across the study sample, rendering it challenging to draw overarching conclusions. Meanwhile, although this review primarily relied on RCTs, it also included 2 retrospective cohort studies. Despite a certain level of comparability in terms of intervention content and study quality, it is important to note that differences in study design may introduce additional systematic bias, thereby weakening the strength of the conclusions. Finally, all fortified education methods engendered a selection bias toward specific demographic groups. For instance, WeChat education may not be viable for patients without smartphones. Consequently, these intervention measures may not fully capture patients with diverse educational backgrounds and economic statuses. Therefore, future research should prioritize the inclusion of more high-quality RCTs while also expanding intervention approaches tailored to diverse populations to enhance the external validity and generalizability of the findings.
Conclusions
In summary, the findings suggest that NME holds promise in increasing the H. pylori eradication rate, particularly when implemented via mobile phone apps. Nevertheless, intervention methods and designs exhibit considerable heterogeneity, necessitating ongoing high-quality research. Furthermore, the evolution of artificial intelligence technology has shifted the focus of medical and health education from the populace to the individual level. Hence, deliberating on the creation of personalized education programs and their integration into clinical practice is imperative.
This study was supported by the Postgraduate Research & Practice Innovation Program of Jiangsu Province (SJCX25_0794). The funders had no role in the study design, data collection, data analysis, interpretation of the results, or manuscript writing. The authors declare that no generative artificial intelligence tools were used in any portion of manuscript writing.
The datasets generated or analyzed during this study are available from the corresponding author on reasonable request.
FY contributed to conceptualization, resources, project administration, and supervision. WF contributed to methodology, formal analysis, investigation, and writing original draft. YT contributed to methodology, data curation, and writing review and editing. JS contributed to validation and visualization.
None declared.
Edited by A Mavragani, A Stone; submitted 01.Jun.2025; peer-reviewed by B-G Zhou, Y-J Fang, M Abuelazm; comments to author 26.Aug.2025; revised version received 15.Sep.2025; accepted 23.Sep.2025; published 23.Oct.2025.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research (ISSN 1438-8871), is properly cited. The complete bibliographic information, a link to the original publication on https://www.jmir.org/, as well as this copyright and license information must be included.
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