Chemotherapy or Observation in Stage I-II Intermediate or High Risk Endometrial Cancer

Endometrial Cancer Clinical Trial

Official title:

A Phase II Randomized Trial of Postoperative Chemotherapy or no Further Treatment for Patients With Node-negative Stage I-II Intermediate or High Risk Endometrial Cancer

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT01244789
• Other study ID #: ENGOT-EN2-DGCG
• Secondary ID: 2010-023081-52
• Status: Active, not recruiting
• Phase: Phase 2
• Start date: December 2011
• Est. completion date: January 15, 2025

Study information

• Verified date: January 2023
• Source: Danish Gynecological Cancer Group
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Patients with stage 1 & 2 endometrial cancer are treated with surgery. Despite the fact that disease is confound to uterus, unfortunately some of these patients may relapse and die of their disease. Postoperative radiotherapy cannot improve survival. Chemotherapy has shown survival benefit in more advanced stage disease (stage 3 & 4).

This study evaluates if one can improve survival in intermediate and high risk early-stage patients by offering them postoperative chemotherapy. This is a randomized phase 3 trial where effect of postoperative chemotherapy is compared with postoperative observation alone (standard strategy).

Substudy: Translational research

Description:

Patients with medium and high risk stage I and II endometrial cancers have, despite radical surgery, a rather high risk for progression.

Adjuvant radiotherapy was the traditional therapy for many decades. Four randomized phase III studies and a meta-analysis have revealed that adjuvant radiotherapy improves local control at the cost of excessive short and long term toxicity, though has absolutely no impact on survival.

Two phase III studies have randomized between adjuvant radiotherapy versus adjuvant chemotherapy, both failed to show any difference in survival between radiotherapy and chemotherapy, though both studies are criticized for inferior chemotherapy regimens or inclusion of good prognosis patients. The GOG-122 study on more advanced cases (stage 3 & 4) randomized between combination chemotherapy versus whole abdominal irradiation and found significant improvement in survival in the chemotherapy arm.

NSGO-EC-9501 and MaNGO studies have indicated that adjuvant chemotherapy added to adjuvant radiotherapy may improve survival compared to adjuvant radiotherapy alone in early stage medium and high risk patients. One may conclude that impact on survival comes only from chemotherapy. Many investigators have therefore adapted adjuvant chemotherapy as standard treatment in various countries including Denmark. However, such conclusion has low level of evidence, as there are no randomized phase III studies comparing postoperative observation alone versus adjuvant chemotherapy.

It is of utmost importance to demonstrate efficacy of adjuvant combination chemotherapy in a randomized phase III trial comparing to no further treatment in the medium and high risk node negative stage 1 & 2 patients.

Combination chemotherapy regimen of paclitaxel-carboplatin is proposed in this study, as this combination is effective and well tolerated.

The eligible patients for such a study are a fraction of patients with endometrial cancer therefore this study will be performed within the ENGOT collaboration.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 244
• Est. completion date: January 15, 2025
• Est. primary completion date: April 15, 2024
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

Target Population

1. Only node-negative patients are eligible: Histological confirmed endometrial carcinoma with no macroscopic remaining tumour after primary surgery and lymph-node negative disease, with one of the following postoperative FIGO 2009 stage and grade:

1. Stage I grade 3 endometrioid adenocarcinoma

2. Stage II endometrioid adenocarcinoma

3. Stage I and II type 2 histology (clear cell, serous, squamous cell carcinoma, or undifferentiated carcinoma) Prior therapy

2. Patients have undergone hysterectomy (total abdominal hysterectomy, radical hysterectomy, laparoscopic or robotic hysterectomy) and bilateral salpingo-oophorectomy (BSO) and pelvic lymphadenectomy (LNE).

3. LNE: minimum 12 pelvic nodes (6 from each side) should be removed. Para-aortic LNE is optional

4. Omentectomy strongly recommended in clear cell, serous or undifferentiated carcinoma.

5. Surgery performed within 10 weeks of randomization. If the dates for hysterectomy and lymph node dissection are different, 10 weeks are counted from the last surgery, and in that case the gap between two surgeries should not exceed 8 weeks.

Other inclusion criteria

6. Patients must give informed consent according to the rules and regulations of the individual participating centres

7. Patients have not received any other anticancer therapy other than surgery.

8. Adjuvant vaginal brachytherapy is permitted in both arms. In chemotherapy arm, timing of VBT should not cause delay in chemotherapy delivery.

9. Patients must have a WHO performance status of 0-2

10. Patients must have an adequate bone-marrow, renal and hepatic function (WBC =3.0x109/L, neutrophils =1.5x109/L, platelets =100x109/L, total S-bilirubin <2 x upper normal value, ALAT <2.5 x upper normal value, estimated GFR >50 ml/min (measured or calculated according to Cockroft-Gault or Jeliffe). Up to 5% deviation for hematological values and 10% deviation for s-bilirubin and ALAT are tolerated.

11. Life expectancy of at least 12 weeks

12. Patients must be fit to receive combination chemotherapy

13. Patient's age >18 years

Exclusion criteria:

Target Disease Exceptions

1. Carcinosarcoma, Sarcomas or small cell carcinoma with neuroendocrine differentiation.

Prohibited Treatments and/or Therapies

2. External Beam Radiotherapy

3. Concurrent cancer therapy

4. Concurrent treatment with an anticancer investigational agent or participation in another anticancer clinical trial Other exclusion criteria

5. Previous or concurrent malignant disease except for curatively treated carcinoma in situ of the cervix or basal cell carcinoma of the skin

6. Active infection or other serious underlying medical condition, which might prevent the patient from receiving treatment or to be followed

7. Whatever reasons which interferes with an adequate follow-up

Related Conditions & MeSH terms

• Endometrial Cancer
• Endometrial Neoplasms

Intervention

Drug:
• carboplatin and paclitaxel
6 courses of iv 3-weekly chemotherapy Carboplatin AUC5 Paclitaxel 175mg/m2

Other:
• observation
active observation

Locations

Country	Name	City	State
Denmark	Danish Gynecological Cancer Group (DGCG)	Copenhagen

Sponsors (10)

Lead Sponsor

Collaborator

Danish Gynecological Cancer Group

Arbeitsgemeinschaft Gynaekologische Onkologie Austria, Belgian Gynaecological Oncology Group, Central and Eastern European Oncology Group, European Organisation for Research and Treatment of Cancer - EORTC, Israeli Society of Gynecologic Oncology, Mario Negri Gynecologic Oncology group (MaNGO), Multicenter Italian Trials in Ovarian cancer and gynecologic malignancies (MITO), Nordic Society of Gynaecological Oncology - Clinical Trials Unit, North Eastern German Society of Gynaecological Oncology

Country where clinical trial is conducted

Denmark, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Overall survival	To detect an overall absolute difference in five-year survival of 10%, from 72% to 82%, at the 2.5% level with 80% power, 135 deaths corresponding to 644 patients are needed. Assuming a dropout rate of 5%, 678 patients have to be accrued, leaving 644 patients for the overall analysis.	May 2017
Secondary	Overall Survival in endometrioid subgroup	In the endometrioid subgroup an absolute difference in five-year survival of 12%, from 74% to 86% is expected. Assuming this, 79 deaths corresponding to 438 patients are needed to yield 80% power at the 2.5% level. Assuming a dropout rate of 5%, 678 patients have to be accrued, leaving 644 patients for the overall analysis and 75% of these, or 483 patients, for the analysis in the endometrioid subgroup.	May 2017
Secondary	Disease Specific Survival	Exploratory endpoint	May 2017
Secondary	Progression-Free Survival	Exploratory endpoint	May 2017
Secondary	Toxicity	Acute toxicity (0-6 months from randomization). Late toxicity is registered during whole study period. Exploratory endpoint	May 2017
Secondary	Quality of Life	EORTC QLQ-30 EORTC QLQ-EN-34	May 2017
Secondary	Rate of isolated pelvic relapse	Exploratory endpoint	May 2017
Secondary	Rate of isolated distant relapse	Exploratory endpoint	May 2017
Secondary	Rate of mixed (local & distant) relapses	Exploratory endpoint	May 2017