Is RRM evidence‑based? (key trials, registries, and guidelines)

RRM is evidence-based through peer-reviewed outcome studies including Stanford et al. (2008), Tham et al. (2012), Boyle et al. (2025), and the largest cohort to date, Sanchez-Mendez et al. (2025, n=1,310), plus ongoing data collection through the iNEST registry.

Published Outcome Data

The evidence base for Restorative Reproductive Medicine spans over 15 years of peer-reviewed publications. Stanford et al. (2008) established initial outcome data for NaProTechnology in an Irish general practice, reporting a crude live birth rate of 25.5% and an adjusted cumulative rate of 52.8%. Tham et al. (2012) replicated these findings in a Canadian family practice with a 38% crude live birth rate. Boyle et al. (2025) published the first head-to-head RRM-versus-IVF comparison, reporting a 41% live birth rate in 187 couples. Sanchez-Mendez et al. (2025) published the largest cohort to date: 1,310 couples with a crude take-home baby rate of 35.3% and an adjusted cumulative rate of 62.1%.

The iNEST registry (International NaProTechnology Evaluation STudy), published in HROpen (2022), collects multi-center real-world data from RRM practices. This registry approach allows for ongoing evaluation of protocols and refinement of treatment approaches based on measurable outcomes.

Clinical Guidelines Integration

RRM clinicians follow established medical guidelines for conditions like PCOS, recurrent pregnancy loss, and endometriosis. The difference lies in the approach. Where conventional guidelines often recommend suppressive medications or immediate ART, RRM protocols first address underlying pathophysiology. For example, PCOS guidelines recommend metformin and lifestyle modifications. RRM expands this to include detailed hormonal assessment, cycle tracking, and targeted nutritional protocols.

• Stanford et al. (2008): 25.5% crude, 52.8% adjusted live birth rate (n=1,072, Irish general practice)
• Tham et al. (2012): 38% crude live birth rate (n=108, Canadian family practice)
• Boyle et al. (2025): 41% live birth rate, first RRM-vs-IVF comparison (n=187)
• Sanchez-Mendez et al. (2025): 35.3% crude, 62.1% adjusted take-home baby rate (n=1,310)
• iNEST registry (HROpen 2022): Multi-center real-world data collection

The RRM Evidence Approach

RRM evidence collection emphasizes long-term reproductive health outcomes rather than single-cycle success rates. This includes tracking live birth rates, pregnancy loss reduction, and cycle health improvement over time. The focus on cause-based treatment means measuring not just conception, but resolution of underlying conditions like luteal phase defects, ovulatory dysfunction, and inflammatory processes.

RRM protocols undergo continuous refinement based on patient outcomes documented through registries like iNEST. This allows for protocol adjustments based on what works best for specific patient populations and conditions.

RRM combines peer-reviewed outcome studies with continuous registry data collection and established clinical guidelines to provide evidence-based reproductive care focused on addressing root causes rather than bypassing them.

This information is educational and not a substitute for individualized medical care. Consult an RRM clinician or healthcare provider for guidance specific to your situation.