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Sedlis/Peters Criteria

SEDLIS/PETERSPost-Hysterectomy Adjuvant Assessment

Pathologic Risk Factors

Clinical pearl

Peters Criteria (GOG 109) defines the cohort benefiting from chemoradiation, while Sedlis Criteria (GOG 92) defines the cohort benefiting from radiation alone to reduce local recurrence.

Adjuvant Status

Surveillance

Clinical Strategy

Criteria not met for adjuvant therapy. Routine surveillance is typically indicated.

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

When to Use

Patients with FIGO Stage IA2, IB, or IIA cervical cancer post-radical hysterectomy and pelvic lymphadenectomy.
Used to decide between observation, pelvic radiation alone (Sedlis), or concurrent chemoradiation (Peters).

How it Works

Sedlis Criteria (Intermediate Risk)

Lymphovascular Space Invasion (LVSI)
Deep stromal invasion (middle or outer 1/3)
Large clinical tumor diameter (≥ 4 cm)

Peters Criteria (High Risk)

Positive pelvic lymph nodes
Positive surgical margins
Positive parametrial involvement

Clinical Pearls

Actionable Management

FindingAdjuvant Therapy
Sedlis Positive (2+ factors)External Beam Radiation Therapy (EBRT) alone.
Peters Positive (1+ factor)Concurrent Chemoradiation (EBRT + Cisplatin).

Clinical Note

The Peters criteria identifying "High Risk" features proved that the addition of cisplatin to radiation significantly improved overall survival compared to radiation alone in this setting.

The Evidence

Key References

A randomized trial of pelvic radiation therapy versus no further therapy in selected patients with stage IB carcinoma of the cervix after radical hysterectomy and pelvic lymphadenectomy

Sedlis A et al. • Gynecologic Oncology. 1999;73(2):177-83

Concurrent chemotherapy and pelvic radiation therapy compared with pelvic radiation therapy alone as adjuvant therapy after radical surgery in high-risk early-stage cancer of the cervix

Peters WA et al. • Journal of Clinical Oncology. 2000;18(8):1606-13

Last Comprehensive Review: 2026

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Recent Journal Updates

CancerJul 23, 2026
Outcomes of loncastuximab tesirine in heavily pretreated patients with diffuse large B‐cell lymphoma, including the post‐CAR T‐cell therapy setting: A meta‐analysis

Clinical Context

We think this might be relevant to the clinical guidance for Sedlis and Peters Criteria (Cervical Cancer).

Cancer MedicineJul 22, 2026
Analysis of Age, Period and Cohort Trends in Cervical In Situ and Invasive Carcinomas for Assessing the Utility of Screening Approaches—Results From the Saarland Cancer Registry

Clinical Context

We think this might be relevant to the clinical guidance for Sedlis and Peters Criteria (Cervical Cancer).

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Clinical Context

We think this might be relevant to the clinical guidance for Sedlis and Peters Criteria (Cervical Cancer).