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Recruiting Phase 2, Phase 3 NCT05316935

NCT05316935 GnRHa + Letrozole in Non-obese Progestin-insensitive Endometrial Cancer and Atypical Hyperplasia Patients

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Clinical Trial Summary
NCT ID NCT05316935
Status Recruiting
Phase Phase 2, Phase 3
Sponsor Xiaojun Chen
Condition Endometrial Neoplasms
Study Type INTERVENTIONAL
Enrollment 80 participants
Start Date 2022-07-13
Primary Completion 2028-03-30

Eligibility & Interventions

Sex Female only
Min Age 18 Years
Max Age 45 Years
Study Type INTERVENTIONAL
Interventions
GnRHaLetrozole 2.5mgDiane-35

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 80 participants in total. It began in 2022-07-13 with a primary completion date of 2028-03-30.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

To investigate the efficacy of GnRHa plus letrozole vs Diane-35 plus metformin in non-obese progestin-insensitive early-stage endometrial cancer (EEC) and atypical hyperplasia(EAH) patients asking for conservative treatment.

Eligibility Criteria

Inclusion Criteria: * Have a confirmed initial pathological diagnosis based upon hysteroscopy: histologically prove EAH or well-differentiated EEC G1 without myometrial invasion * BMI\<30kg/m2 * No signs of suspicious extrauterine involvement on enhanced magnetic resonance imaging (MRI) or enhanced computed tomography (CT) or ultrasound * Using progestin, any of the following therapy, as first-line treatment: 1. Megestrol acetate ≥ 160 mg qd using, combined with Levonorgestrel Lntrauterine System (LNG-IUS) inserted or not 2. Medroxyprogesterone acetate ≥ 250 mg qd using, combined with LNG-IUS inserted or not 3. LNG-IUS inserted * Progestin-insensitive: 1. remained with stable disease after 7 months of progestin use 2. did not achieve CR after 10 months of progestin use * Have a desire for remaining reproductive function or uterus * Good compliance with adjunctive treatment and follow-up Exclusion Criteria: * Combined with severe medical disease or severely impaired liver and kidney function * Pathologically confirmed as endometrial cancer with suspicious myometrial invasion or extrauterine metastasis * Patients with other types of endometrial cancer or other malignant tumors of the reproductive system * Patients with breast cancer or other hormone- dependent tumors or diseases that cannot be used with Diane-35, GnRHa, Letrozole or MET * Strong request for uterine removal or other conservative treatment * Known or suspected pregnancy * Acute severe disease such as stroke or heart infarction or a history of thrombosis disease * Smoker(\>15 cigarettes a day)

Contact & Investigator

Central Contact

Xiaojun Chen, PhD

✉ cxjlhjj@163.com

📞 8602133189900

Frequently Asked Questions

Who can join the NCT05316935 clinical trial?

This trial is open to female participants only, aged 18 Years or older, up to 45 Years, studying Endometrial Neoplasms. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT05316935 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT05316935 currently recruiting?

Yes, NCT05316935 is actively recruiting participants. Contact the research team at cxjlhjj@163.com for enrollment information.

Where is the NCT05316935 trial being conducted?

This trial is being conducted at Shanghai, China, Shanghai, China.

Who is sponsoring the NCT05316935 clinical trial?

NCT05316935 is sponsored by Xiaojun Chen. The trial plans to enroll 80 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: November 2026  ·  Data Methodology