Gemcitabine - Oxaliplatin for Advanced Refractory Thyroid Cancer Patients: a Phase II Study (THYGEMOX)

Open Labeled Phase II Study Evaluating Efficacy and Safety of Chemotherapy With Gemcitabine - Oxaliplatin Combination for Advanced Refractory Thyroid Cancer Patients

Radioiodine refractory differentiated thyroid cancer is a rare tumor and therapeutic options are limited in this setting. Molecular targeted therapies have recently been developed for progressive disease and demonstrated clinical activity, especially with anti-angiogenic agents.

For patients with contra-indication to these agents or in case of progression or toxicity during treatment, chemotherapy is usually proposed but this strategy has not been validated by prospective data.

The investigators propose to conduct an open single arm phase 2 study to evaluate response rate according to RECIST 1.1 with GEMOX regimen (gemcitabine - oxaliplatin combination) for advanced radioiodine refractory differentiated thyroid cancer patients after anti-angiogenic agents or in case of contra-indication to anti-angiogenic therapy.

Study Overview

• Status: Terminated
• Conditions: Thyroid Cancer
• Intervention / Treatment: Drug: gemcitabine -oxaliplatine combination

Detailed Description

The aim is to study efficacy of chemotherapy with gemcitabine - oxaliplatin combination for advanced radioiodine refractory differentiated thyroid cancer patients after anti-angiogenic agents or in case of contra-indication to anti-angiogenic therapy.

For refractory thyroid cancer patients, in case of contra-indication to molecular targeted therapies or in case of progression or toxicity during treatment, alternative treatments are urgently needed.

Our study could precise if cytotoxic agents should remain a treatment option for refractory thyroid cancer after molecular targeted therapies or in case of contra-indication.

Numerous clinical trials are proposed to evaluate various molecular targeted therapies for refractory thyroid cancer, either conducted by institutional or industrial promoters. In contrast, chemotherapy trials are lacking. As generics are actually available for gemcitabine and oxaliplatin, no industrial support can be expected and prospective evaluation a chemotherapy regimen need to be conducted by an institutional promoter ("Assistance Publique - Hôpitaux de Paris"), supported by many French expert teams through the rare tumor network ""TUTHYREF"".

GEMOX regimen will be administrated intravenously every two weeks in ambulatory setting.

The objective of this study is to analyse the efficacy of chemotherapy with gemcitabine - oxaliplatin combination for advanced radioiodine refractory differentiated thyroid cancer patients after anti-angiogenic agents or in case of contra-indication to anti-angiogenic therapy.

The primary end point is overall response rate (complete + partial response - CR+PR), according to RECIST 1.1, assessed by local investigator at 4 months.

30 patients will be included in a two steps design (Fleming design). A response rate lower than 15% define the inefficacy level. Minimal efficacy should be 35% response rate.

First step: inclusion of 15 patients. If 2 or less responses are observed: end of study for inefficacy If 6 or more responses are observed: efficacy endpoint has been reached If 3 to 5 responses are observed, additional inclusions are needed. Second step: inclusion of 15 additional patients. Nine responses are expected to define a positive study. Details are presented in statistical section.

The secondary end points are:

• Safety report according to NCI CTCAE v 4.0 grading scale
• Early metabolic response rate on 18F-FDG-PET/CT at 2 months
• Disease control rate (DCR = CR + PR + SD) ≥ 6 months
• Duration of response
• Time to progression
• Progression free survival
• Overall survival.
• Evolution of quality of life according to Fact-G and EQ-5D "

• Study Type: Interventional
• Enrollment (Actual): 21
• Phase: Phase 2

Contacts and Locations

Study Locations

• France
  • Paris, France, 75013
    • Groupe Hospitalier Pitié Salpétrière

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

"Main Inclusion criteria

1. Histologically confirmed differentiated or poorly differentiated thyroid cancer that is metastatic or unresectable
2. Patients refractory to radio iodine
3. Radiologic evidence of clinically relevant disease progression (as per RECIST 1.1)
4. Measurable disease (by RECIST Version 1.1 criteria)
5. ECOG performance status of ≤ 1
6. Adequate hematologic, renal and liver function
7. Negative serum pregnancy test in premenopausal women.
8. Signed informed consent

Main Non-Inclusion criteria

1. Other histological subtypes of thyroid tumors: anaplastic, medullary, lymphoma or sarcoma
2. Active CNS metastases
3. Prior chemotherapy. Patients treated previously with molecular targeted therapies could be included.
4. Severe, acute or chronic medical or psychiatric condition or laboratory abnormality which in the judgment of the investigator would make the patient inappropriate for entry into this study"

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: NA
• Interventional Model: SINGLE_GROUP
• Masking: NONE

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: gemcitabine -oxaliplatine combination	Drug: gemcitabine -oxaliplatine combination; gemcitabine (2g/50mL)-oxaliplatine (200mg /40mL) combination, IV,every 2 weeks for 8cycles

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
overall response rate	overall response rate measured (complete and partial responses) by CT-scan according to RECIST criteria v1.1	4 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
number of adverse events and serious adverse events (AE) according to CTCAE v4.03	recording number of adverse events and serious adverse events (AE) according to CTCAE v4.03, during chemotherapy and follow up.	up to 12 month
Early metabolic response rate on 18F-FDG-TEP/CT	semi-quantitative PET Response Criteria in Solid Tumors PERCIST1.0 "modified" using SUVmax and body-weight. Central reviewing of FDG-PET data by two readers at the end of the study will be done.	2 months
Disease control rate	Disease control rate (DCR) is defined as the percentage of patients who have achieved complete response (CR), partial response (PR) or stable disease (SD).	4 months
Time to progression	Time from documentation of tumor response to disease progression or date of death from any cause	up to 36 months
Progression free survival	Time from documentation of tumor response to disease progression or date of death from any cause	up to 36 months
Overall survival	Delay between inclusion and death from any cause	up to 36 months
Quality of life	evolution of quality of life will be assessed by the scores at the FACT-G and EQ-5D surveys (French version)	at day 1(week 1, i.e first cycle) and repeated every 28 days (i.e at W5, W9, W13, W17) during chemotherapy and every 3 months until 12 months

Collaborators and Investigators

• Sponsor: Assistance Publique - Hôpitaux de Paris
• Investigators: Principal Investigator: Laurence Leenhardt, Assistance Publique - Hôpitaux de Paris

Study record dates

Study Major Dates

• Study Start (ACTUAL): April 7, 2016
• Primary Completion (ACTUAL): April 1, 2018
• Study Completion (ACTUAL): January 15, 2019

Study Registration Dates

• First Submitted: May 12, 2015
• First Submitted That Met QC Criteria: June 12, 2015
• First Posted (ESTIMATE): June 15, 2015

Study Record Updates

• Last Update Posted (ACTUAL): March 18, 2019
• Last Update Submitted That Met QC Criteria: March 14, 2019
• Last Verified: March 1, 2018

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms; Neoplasms by Site; Endocrine System Diseases; Endocrine Gland Neoplasms; Head and Neck Neoplasms; Thyroid Diseases; Thyroid Neoplasms; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Anti-Infective Agents; Antiviral Agents; Enzyme Inhibitors; Antimetabolites, Antineoplastic; Antimetabolites; Antineoplastic Agents; Immunosuppressive Agents; Immunologic Factors; Gemcitabine; Oxaliplatin
• Other Study ID Numbers: P130933