A²I™ Device Class

Therapeutic / Surgical

Surgical devices, energy-based therapeutics, interventional tools

26 rejection patterns apply to this device class across MSAC, NICE, and PHARMAC.

MSAC

8 patterns
M01

Single-arm study design

MSAC consistently rejects clinical utility claims based on single-arm studies. Comparative evidence against current Australian standard of care is required. Single-arm studies are only accepted for safety and feasibility claims, not for clinical utility or cost-effectiveness.

Signal: Single-arm design proposed or completed with no comparator arm.
M02

No active comparator or wrong comparator

The comparator must reflect current Australian clinical practice — not placebo, historical control, or international standard of care unless explicitly justified. MSAC has deferred multiple applications where the comparator was not the Australian standard of care.

Signal: Planned study uses placebo, no comparator, or a non-Australian standard of care.
M04

Population not generalisable to Australia

Studies conducted entirely in non-Australian populations require explicit bridging justification. MSAC has rejected or deferred applications where prevalence, treatment pathway, or clinical setting differed materially from Australian practice.

Signal: Evidence base is entirely international (particularly US/European) with no bridging argument.
M05In silico path

No economic model or inadequate cost-effectiveness analysis

MSAC requires a full health economic model for all MBS listing applications, using Australian costs and epidemiology, presenting cost per QALY or cost per clinical outcome. Absence of an economic model is an automatic rejection driver.

Signal: No economic model, or model not yet started/scoped.
M06

Insufficient follow-up

MSAC has deferred applications where follow-up was insufficient to capture clinically meaningful outcomes. Implantable devices require a minimum 12 months; chronic condition devices require follow-up commensurate with the disease course.

Signal: Follow-up period under 12 months for an implantable, or short relative to the natural disease course.
M07

Equity evidence absent

MSAC requires explicit consideration of access for Aboriginal and Torres Strait Islander peoples and rural/remote populations. Applications that do not address equity of access are flagged, weighted heavily where the condition has disproportionate burden in these populations.

Signal: No equity evidence or access consideration included in the submission.
M09

Small sample size / underpowered studies

MSAC has rejected applications where sample sizes were insufficient to detect a clinically meaningful difference. Studies powered for regulatory clearance are frequently underpowered for MSAC's comparative-effectiveness purposes.

Signal: Sample size set for regulatory clearance only, not powered for comparative effectiveness.
M10

No pre-specified primary endpoint

Post-hoc endpoint selection or composite endpoints without pre-specification are a recurring MSAC concern. The primary endpoint must be pre-specified, clinically relevant, and powered accordingly.

Signal: Primary endpoint not yet pre-specified, or endpoint selection deferred to analysis stage.

NICE

6 patterns
N02In silico path

No QALY-based economic model

NICE requires a cost-utility analysis using QALYs, reference case threshold £20,000–£30,000/QALY (higher for end-of-life criteria: survival under 24 months, QALY gain ≥3 months). Applications without a QALY model are rejected at assessment stage.

Signal: No QALY model present, or economic model status is not started/scoped.
N03

Non-UK population without bridging evidence

Evidence from non-UK populations must be explicitly bridged to UK NHS clinical practice, addressing differences in care pathways, disease prevalence, and treatment standards. US evidence in particular frequently requires substantial bridging.

Signal: Evidence base is non-UK (especially US) with no bridging argument to NHS practice.
N05

No equality impact assessment

Under the Equality Act 2010, NICE requires applicants to demonstrate consideration of impact on protected characteristics (age, sex, disability, ethnicity, etc). Missing equality impact assessments are a compliance gap that delays or blocks appraisal.

Signal: No equality impact assessment included in the submission.
N08In silico path

Health economic model does not meet NICE reference case

NICE's reference case specifies perspective (NHS and personal social services), time horizon (lifetime), discount rate (3.5% costs and outcomes), and utility measurement (EQ-5D). Deviations without justification result in model rejection.

Signal: Economic model deviates from NICE reference case parameters without justification.
N09

No Patient Access Scheme when cost-effectiveness uncertain

Where cost-effectiveness is uncertain or the ICER exceeds threshold, NICE expects a Patient Access Scheme proposal. Absence of a PAS when the base case ICER is above £30,000 is a negative signal.

Signal: Base case ICER likely to exceed £30,000/QALY with no PAS proposed.
N10

Single-arm studies for treatment pathway devices

For devices in the treatment pathway (ESF Tier C), NICE requires comparative evidence. Single-arm studies demonstrating device performance are insufficient to establish comparative effectiveness against current NHS standard of care.

Signal: Single-arm design for a Tier C / treatment-pathway device claim.

PHARMAC

6 patterns
P01

No comparator against current Hospital/Community Device Schedule item

PHARMAC's Factors for Consideration require comparison against the current funded alternative (an existing Schedule device or standard hospital practice), not an unfunded or international comparator, unless a case is made for a first-in-class listing.

Signal: No head-to-head or cost comparison against the currently funded device/practice.
P02In silico path

No cost-utility / budget impact analysis

PHARMAC's investment approach weighs health need, health benefit, cost, and suitability within a fixed device/pharmaceutical budget. Applications without a budget impact analysis and cost-utility case are difficult to prioritise against competing investments.

Signal: No budget impact or cost-utility analysis prepared for the funding application.
P03

Equity evidence absent for Māori and Pacific populations

Under Te Tiriti o Waitangi obligations, PHARMAC requires explicit consideration of equity impact for Māori and Pacific peoples. Absent equity evidence can block funded access or generate binding conditions, consistent with the pattern seen across PHARMAC's pharmaceutical decisions.

Signal: No equity evidence or impact assessment for Māori/Pacific populations.
P04

Population not generalisable to New Zealand clinical practice

Evidence generated entirely offshore (commonly US, European, or Australian trials) requires bridging to the New Zealand health system, clinical pathway, and population profile before PHARMAC will treat it as directly applicable.

Signal: Evidence base is entirely non-NZ with no bridging rationale to NZ practice.
P05

Insufficient evidence of health need or clinical benefit

PHARMAC's Factors for Consideration weigh the health need of the population against the strength and directness of clinical benefit evidence. Surrogate-only or indirect evidence weakens the case relative to devices with direct, patient-relevant outcome data.

Signal: Clinical benefit case rests on surrogate or indirect endpoints rather than direct patient outcomes.
P06

No suitability/implementation evidence for the NZ health system

PHARMAC's suitability criterion considers practical implementation — training burden, supply chain, compatibility with existing hospital equipment/workflow. Devices with no NZ implementation or training plan face additional funding risk.

Signal: No implementation, training, or supply plan addressing NZ health system suitability.