Watchdog to Fertility Clinics: Drop Unproven ‘Add‑Ons’ — The Evidence Patients Should Demand Before Paying More

September 13, 2025 at 7:11 PM UTC
5 min read

A national watchdog has sent a clear signal to fertility providers: stop selling hope without proof. Draft guidance from the National Institute for Health and Care Excellence (NICE) urges both NHS and private clinics to drop in‑vitro fertilisation (IVF) “add‑ons” that lack high‑quality evidence of benefit. The committee’s rationale is blunt: optional tests and procedures that promise higher success rates can inflate costs, add risk and discomfort, and distract from care that actually improves live births.

Add‑ons are marketed on top of standard IVF protocols and can include endometrial scratching, pre‑transfer hysteroscopy, endometrial receptivity tests, and the routine use of intracytoplasmic sperm injection (ICSI) when semen parameters are normal. Many are time‑sensitive, invasive, and costly; most have not demonstrated clear live‑birth gains in the populations where they’re heavily marketed.

Patients’ vulnerability is not hypothetical. The fertility regulator’s survey found that nearly three‑quarters of people who had treatment in late 2024 used additional tests or emerging technologies despite most not being proven to work; only about a third reported that risks were explained. In this landscape, NICE’s call for transparent counseling and evidence‑led care is a timely reset for clinics and consumers alike.

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What the draft guidance means for your care now

NICE’s draft update draws a bright line between proven core care and expensive optional extras. The committee advises against several of the sector’s most popular upsells: endometrial scratching; routine hysteroscopy solely to improve IVF outcomes; endometrial receptivity testing before embryo transfer; and ICSI where semen parameters are normal. The message is to focus on interventions that consistently improve live births in defined patient groups, not on techniques that are biologically plausible but insufficiently supported by rigorous evidence.

The guidance also elevates informed consent. Clinics should provide individualized estimates of success and discuss both risks and benefits before any non‑core intervention. That includes the practical burden of timing, cycle disruptions, extra procedures, and the opportunity costs of diverting budget from core steps known to improve outcomes.

Access and value are addressed head‑on. The committee found that, for eligible patients, up to three full IVF cycles can represent good value, though funding decisions remain in the hands of local integrated care boards. By focusing public and private budgets on evidence‑based care, NICE is implicitly challenging the economic logic of selling marginal or unproven add‑ons that consume resources without reliably increasing live births.

There is also a broader definition of fertility preservation. While traditionally centered on oncology, NICE suggests widening access to people at medical risk of losing fertility, such as those with severe recurrent endometriosis or after surgeries affecting reproductive organs. That reframing recognizes the importance of timing—and the ethical obligation to align interventions with credible, patient‑centered benefits.

What the evidence says on popular add‑ons

Endometrial scratching is a case study in evidence whiplash. A large pragmatic multicentre randomized trial published in 2019 found no difference in live births versus no intervention among 1,364 women undergoing IVF. That single, high‑quality trial carries weight because it measured the outcome that matters most to patients: live birth. Yet an individual participant data meta‑analysis published in 2023, pooling over 4,000 participants after extensive data integrity checks, reported a modest improvement in live‑birth odds overall and suggested that timing may influence effectiveness. Crucially, it failed to identify any subgroup—by age, prior failures, treatment type, or infertility cause—with a consistently greater benefit, and it explicitly recommended caution and robust counseling.

Endometrial receptivity testing (ERA and similar transcriptomic assays) also draws heavy marketing but rests on mixed evidence. A 2023 systematic review and meta‑analysis underscored ongoing uncertainty about whether personalizing transfer timing based on molecular signatures improves pregnancy or live‑birth outcomes. Large randomized trials in first‑cycle patients and in recurrent implantation failure populations have been registered; definitive live‑birth‑focused results in unselected patients are still pending. On current evidence and per NICE’s draft stance, ERA should not be routine.

Pre‑IVF hysteroscopy as a generic “optimization” tool is not supported. While hysteroscopy is invaluable when there is a specific clinical indication (for example, suspected intrauterine pathology), randomized work in women without sonographic abnormalities has not demonstrated improved outcomes when used solely as a pre‑treatment add‑on. NICE accordingly advises against it for that purpose, reducing unnecessary invasiveness and anesthesia exposure.

ICSI in non‑male factor infertility is another example where practice drift has outpaced proof. ICSI revolutionized care for severe male factor cases, but routine use in cycles with normal semen parameters adds cost and laboratory complexity without evidence of better live‑birth outcomes in this group. Large randomized trials comparing ICSI with conventional IVF in couples without male factor have completed internationally with enrollments exceeding 1,000 and 2,000 participants; the totality of current guidance points away from defaulting to ICSI when there is no male factor indication.

Endometrial Scratching: Reported Odds Ratios for Live Birth

Contrasting effect estimates from a large pragmatic RCT versus an IPD meta-analysis; the RCT found no benefit while the IPD analysis suggested a modest improvement with caution.

Source: Peer-reviewed publications • As of 2025-09-13

Popular IVF Add‑Ons: What Guidelines Say and What the Best Evidence Shows

Summary of NICE draft stance and high‑level evidence on commonly marketed add‑ons.

Add‑OnNICE Draft StanceKey EvidenceLive‑Birth Impact SummaryTypical Risks/Burden
Endometrial scratchingAdvise againstLarge RCT (2019) no benefit; IPD meta‑analysis (2023) modest OR with cautionUncertain; high‑quality RCT shows no gain, meta‑analysis suggests small benefitProcedure‑related pain; cycle timing burden
Endometrial receptivity testing (ERA)Advise against routine use2023 systematic review/meta‑analysis: mixed, limited evidence; large RCTs pendingUnproven in unselected patients; not routineBiopsy discomfort (invasive versions); added visits/cost; potential delays
Pre‑IVF hysteroscopy (no specific indication)Advise againstRandomized studies without abnormal scan do not show improved outcomesUnproven as generic optimizationInvasive; anesthesia/sedation risks in some settings
ICSI with normal semenAdvise against routine useLarge RCTs completed in non‑male factor cohorts; guidance disfavors routine ICSINo proven live‑birth advantage vs conventional IVF in this groupAdditional lab manipulation; higher cost; potential lab capacity impacts

Source: NICE draft guidance and cited peer‑reviewed studies

The consumer trap: middlemen, upsells and who protects you

Beyond the clinic walls, a parallel ecosystem of unregulated “concierge” intermediaries has emerged, promising convenience, donor matching, remote coordination, and personalized protocols. When such companies fail—some have abruptly closed—patients can be left with canceled procedures, stranded funds, and fragmented records. Critically, because these businesses do not perform licensed IVF activities themselves, they may fall outside the fertility regulator’s remit, leaving consumers with fewer protections.

In contrast, HFEA‑licensed clinics have formal obligations to protect patients’ interests and stored gametes or embryos in the event of closure. They must provide information, ensure safe custody and transfer of biological materials, and support continuity of care. That safety net often does not extend to virtual middlemen, who may hold your money and data while contracting with clinics you never directly pay or authorize. If the intermediary collapses, downstream providers might not have access to your records or funds, even when you’ve already paid.

Practical consumer protection starts before you sign. Verify that the treating facility is HFEA‑licensed; scrutinize who holds your funds and under what terms; avoid large upfront packages without robust escrow or refund protections; and obtain explicit contingency plans for business continuity, data access, and clinical handover. Digital and remote models can enhance access, but the legal framework needs to catch up so that innovation does not come at the expense of basic patient safeguards.

Finally, remember that upsells thrive in uncertainty. Vendors may emphasize relative risk lifts or secondary outcomes while downplaying absolute live‑birth gains, side effects, cycle delays, and trade‑offs. Your best defense is insisting on absolute numbers for patients like you, clear statements about trial quality and endpoints, and a plan for what changes if the add‑on yields no measurable benefit.

Registered ERA Trials: Planned/Target Enrollment

Large randomized studies are underway or registered to clarify ERA’s clinical utility in different populations.

Source: ClinicalTrials.gov • As of 2025-09-13

Key Randomized Trials by Topic (Sample Sizes and Status)

Selected randomized studies informing practice on add‑ons.

TopicTrial (Registry/Journal)Design/PopulationEnrollmentStatus/Result Focus
Endometrial scratchingNEJM 2019 (multicentre RCT)IVF patients; scratch vs no intervention1,364No increase in live birth
Endometrial scratchingHRU 2023 IPD meta‑analysisPooled RCT participants4,112Modest OR>1 with caution; no clear subgroup
ERANCT04687670First‑cycle IVF/ICSI; ERA vs standard714Registered; outcomes pending/unknown status
ERANCT06762626RIF; FET timed by ERA vs standard (double‑blind RCT)734Recruiting
ERANCT03558399FET timing by ERA vs standard800Registered; outcomes pending/unknown
ICSI vs IVF (non‑male factor)NCT03428919Non‑male factor couples1,064Completed
ICSI vs IVF (non‑severe male factor)NCT03298633Non‑severe male infertility2,387Completed
Hysteroscopy pre‑IVFNCT03173404First/second IVF; normal ultrasound75Completed; no routine benefit established

Source: ClinicalTrials.gov and peer‑reviewed literature

Before you pay for any add‑on: the essential questions

Anchor every decision to live‑birth evidence in people like you. Ask whether there is at least one high‑quality randomized trial showing a live‑birth benefit for your age, diagnosis, and treatment type. If the answer leans on meta‑analyses pooling small and heterogeneous studies, ask how consistent the effect is across trials and whether timing, protocol, or patient selection explains differences.

Request your absolute probability of live birth with and without the add‑on, not just relative gains. A relative increase can sound impressive while translating into a clinically trivial change in absolute terms if baseline probabilities are low. Insist on numbers expressed per embryo transfer or per started cycle as appropriate, and clarify whether estimates apply to fresh or frozen transfers.

Probe the safety and burden honestly. What are the risks, discomforts, and potential cycle delays? How often do additional visits or procedures occur? Will this add‑on replace, duplicate, or postpone a proven step? And if the evidence hinges on precise timing (as with some implantation‑focused strategies), who is coordinating that timing and what happens if the window is missed?

Finally, treat financial transparency as a clinical quality metric. Get the total cost and itemization in writing, including cancellation and closure policies, who holds the funds, and how refunds are processed. Confirm licensure for the treating clinic, and if any entity involved is unlicensed, document what statutory protections do—and do not—apply to your case.

Consumer Safeguards Checklist Before Paying for Add‑Ons

Practical due‑diligence steps to protect care, funds, and data.

QuestionWhy It MattersWhat a Good Answer Looks Like
Is the treating facility HFEA‑licensed?Licensure triggers patient protections and storage safeguardsClinic name, licence number, regulator link on request
Who holds your funds and under what terms?Middlemen may collapse; escrow reduces riskClient account/escrow; clear refund triggers and timelines
What is the absolute change in my live‑birth probability?Absolute numbers avoid misleading relative risksPer‑transfer and per‑cycle estimates for your profile
What are the risks, burdens, and timing demands?Some add‑ons add pain, visits, or delaysProcedural risks disclosed; timing plan with contingencies
What happens if the intermediary closes?Continuity of care and data access can failWritten business‑continuity and direct clinic handover plan

Source: HFEA guidance themes and recent market experiences

How to weigh conflicting evidence without getting lost

Give a green light to add‑ons only when there is clear, reproducible randomized evidence of increased live births in patients like you and when major guidelines agree. These are the circumstances where an add‑on likely merits its cost and burden because the endpoint that matters—bringing home a baby—moves in a meaningful way.

Use a yellow light for situations where pooled analyses suggest possible benefit but with heterogeneity, timing sensitivities, or lack of validated subgroups. Proceed only with fully informed consent, realistic expectations, and a pre‑defined stopping rule if there is no early signal of benefit. Be explicit about what constitutes “success” and how soon you will reassess.

Keep a red light for add‑ons that guidelines advise against or for which high‑quality evidence is lacking in your situation. Avoid paying more for procedures that are invasive, time‑consuming, or that siphon funds from steps with proven effectiveness. If you are deeply interested in an experimental approach, explore participation in a properly approved clinical trial where monitoring, transparency, and learning are built into the design.

Above all, separate marketing logic from medical logic. The fact that a technology is new, personalized, or data‑rich does not guarantee a higher chance of live birth. The burden of proof sits with those selling the add‑on. Your role is to demand numbers that matter, protections that endure, and a care plan that prioritizes outcomes over optics.

Conclusion

The fertility sector is overdue for a recalibration that prioritizes the outcome patients care about most: live birth. NICE’s draft guidance is a decisive step toward aligning clinical practice and consumer offerings with high‑quality evidence. By advising against common add‑ons with weak or conflicting data, and by doubling down on transparent counseling, the watchdog is pushing clinics to do fewer things better—and to stop charging for extras that don’t reliably help.

That correction is not anti‑innovation; it is pro‑evidence. Where signals are mixed, new randomized trials are underway. Where benefits are plausible but unproven, patients deserve honest communication about uncertainties, burdens, and opportunity costs. And where market structures have outpaced regulation—especially with unlicensed intermediaries—policy needs to catch up so that digital convenience does not erode basic protections.

Patients can change the conversation today. Ask for absolute live‑birth numbers in people like you, insist on guideline‑concordant care, verify licensure and fund custody, and be wary of large upfront payments for packages built on shaky science. Evidence‑led care is the safest path forward—and the surest way to turn hope into outcomes.

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