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Lung Diseases

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Tretinoin

Paclitaxel

Albumin-Bound Paclitaxel

Cisplatin

Patients were assigned to receive placebo (P/PC) 1 week prior to treatment until completing two cycles

Patients were assigned to receive ATRA 20 mg/m2/day (RA/PC) 1 week prior to treatment until completing two cycles

Patients were assigned to receive ATRA 20 mg/m2/day (RA/PC) 1 week prior to treatment until completing two courses of chemotherapy based on paclitaxel and cisplatin

ATRA

Patients were randomized to receive or placebo (P/PC) 1 week prior to treatment until completing two courses of chemotherapy based on paclitaxel and cisplatin

PLACEBO

Oscar Arrieta, M.D.

Purpose:

This randomized phase II trial evaluated whether the combination of cisplatin and paclitaxel plus All-trans retinoic acid (ATRA) increases Response rate (RR) and Progression-free survival (PFS) in patients with advanced Non-small cell lung cancer (NSCLC) with an acceptable toxicity profile and its association with the expression of Retinoic acid receptor beta 2 (RAR-beta2) as a response biomarker.

Patients and Methods:

Patients with stage IIIB and IV NSCLC were included to receive Paclitaxel and Cisplatin (PC). Patients were randomized to receive ATRA 20 mg/m2/day (RA/PC) or placebo (P/PC) 1 week prior to treatment until completing two cycles. RAR-beta2 expression was analyzed by Immunohistochemistry (IHC) and RT-PCR in tumor and adjacent lung tissue.

Purpose:

This randomized phase II trial evaluated whether the combination of cisplatin and paclitaxel plus All-trans retinoic acid (ATRA) increases Response rate (RR) and Progression-free survival (PFS) in patients with advanced Non-small cell lung cancer (NSCLC) with an acceptable toxicity profile and its association with the expression of Retinoic acid receptor beta 2 (RAR-beta2 ) as a response biomarker.

Patients and Methods:

Patients with stage IIIB and IV NSCLC were included to receive Paclitaxel and Cisplatin (PC). Patients were randomized to receive ATRA 20 mg/m2/day (RA/PC) or placebo (P/PC) 1 week prior to treatment until completing two cycles. RAR-beta2 expression was analyzed by Immunohistochemistry (IHC) and RT-PCR in tumor and adjacent lung tissue.

Effect of All-trans Retinoic Acid With Chemotherapy Based in Paclitaxel and Cisplatin as First Line Treatment of Patients With Advanced Non-small Cell Lung Cancer

Randomized Phase II Trial: Effect of All-trans Retinoic Acid With Chemotherapy Based in Paclitaxel and Cisplatin as First Line Treatment of Patients With Advanced Non-small Cell Lung Cancer

Instituto Nacional de Enfermedades Respiratorias

National Institute of Cancerología

Oscar Arrieta

atRA group will receive six cycles of 80 mg/m2 of cisplatin and 175 mg/m2 of paclitaxel plus atRA 45 m2/day before one week before treatment and during all the treatment

Placebo group will receive six cycles of 80 mg/m2 of cisplatin and 175 mg/m2 of paclitaxel plus placebo before one week before treatment and during all the treatment

atRA

Placebo

BACKGROUND Platinum-based chemotherapy (CT) is the standard treatment for advanced non-small-cell lung cancer (NSCLC). Unfortunately, the survival and response rate (RR) to CT is poor. There is great interest in new treatment strategies. One of this new strategies include the use of retinoids such as atRA. The synergistic effect of cytotoxic agents with retinoids has been demonstrated in lung cancer. At the INCan, our work group carried out a phase II study trial that included 107 patients with advanced NSCLC. They were randomized to receive atRA (20-mg/m2) or placebo combined with 80 mg/m2 of cisplatin and 175 mg/m2 of paclitaxel. The results showed a significant increase in the RR of the atRA group, reaching 55.8% ( 95% CI; 46.6-64.9%) compared with 25.4% (95% CI, 21.3-29.5%; p = 0.001) in patients who received placebo. Median Progression-free survival (PFS) in the atRA group was 8.9 months, while for those of placebo, PFS was 6.0 months (p = 0.008). There were no significant differences in the grade 3-4 side effects between groups, except for hypertriglycemia, which presented with greater frequency in the atRA group (p = 0.05). Immunohistochemical stains determine the RAR B2 expression in 6 of 60 tumor samples analyzed; however, all samples expressed RAR B2 in adjacent normal tissue.

HYPOTHESIS Patients with NSCLC who receive the scheme combined with first-line CT plus 45 mg/m2 of atRA will have a greater PFS and RR to CT with an acceptable toxicological profile.

OBJECTIVES

1. Obtain a greater RR to CT and PFS in patients with advanced NSCLC who receive cisplatin- and paclitaxel-based CT combined with a 45-mg/m2 daily dose of atRA with an acceptable toxicological profile .
2. Evaluate the benefit of RAR beta and RAR alfa expression as a response biomarker.

METHODS Three hundred and thirty patients with advanced NSCLC will be included to receive Paclitaxel 175 mg/m2 and Cisplatin 80 mg/m2 (PC) every 21 days for 6 cycles. Patients will be randomized to receive ATRA 45 mg2/day or placebo 1 week before treatment until completing six cycles. Imaging studies will be performed prior and after two cycles of CT to assess response. RAR beta and RAR alfa expression will be analyzed by immunohistochemistry in lung tumoral tissue and in the adjacent lung tissue.

BACKGROUND Platinum-based chemotherapy (CT) is the standard treatment for advanced non-small-cell lung cancer (NSCLC). Unfortunately, the survival and response rate (RR) to CT is poor. There is great interest in new treatment strategies. One of this new strategies include the use of retinoids such as atRA. The synergistic effect of cytotoxic agents with retinoids has been demonstrated in lung cancer. At the INCan, our work group carried out a phase II study trial that included 107 patients with advanced NSCLC. They were randomized to receive atRA (20-mg/m2) or placebo combined with 80 mg/m2 of cisplatin and 175 mg/m2 of paclitaxel. The results showed a significant increase in the RR of the atRA group, reaching 55.8% ( 95% CI; 46.6-64.9%) compared with 25.4% (95% CI, 21.3-29.5%; p = 0.001) in patients who received placebo. Median Progression-free survival (PFS) in the atRA group was 8.9 months, while for those of placebo, PFS was 6.0 months (p = 0.008). There were no significant differences in the grade 3-4 side effects between groups, except for hypertriglycemia, which presented with greater frequency in the atRA group (p = 0.05). Immunohistochemical stains determine the RAR beta 2 expression in 6 of 60 tumor samples analyzed; however, all samples expressed RAR beta 2 in adjacent normal tissue.

HYPOTHESIS Patients with NSCLC who receive the scheme combined with first-line CT plus 45 mg/m2 of atRA will have a greater PFS and RR to CT with an acceptable toxicological profile.

OBJECTIVES

1. Obtain a greater RR to CT and PFS in patients with advanced NSCLC who receive cisplatin- and paclitaxel-based CT combined with a 45-mg/m2 daily dose of atRA with an acceptable toxicological profile .
2. Evaluate the benefit of RAR beta and RAR alfa expression as a response biomarker.

METHODS Three hundred and thirty patients with advanced NSCLC will be included to receive Paclitaxel 175 mg/m2 and Cisplatin 80 mg/m2 (PC) every 21 days for 6 cycles. Patients will be randomized to receive ATRA 45 mg2/day or placebo 1 week before treatment until completing six cycles. Imaging studies will be performed prior and after two cycles of CT to assess response. RAR beta and RAR alfa expression will be analyzed by immunohistochemistry in lung tumoral tissue and in the adjacent lung tissue.

POPULATON AND SAMPLE

The institutions that will recruit patients will be the National Institute of Cancerology (INCan) and the National Institute of Respiratory Diseases (INER) according to the inclusion and exclusion criteria of the protocol:

Inclusion criteria: Patients with advanced NSCLC (stages III B or IV according to the Tumor node metastasis \[TNM\] classification) who receive paclitaxel 175 mg/m2- and cisplatin-based palliative therapy every 3 weeks during 4 cycles; general status with a Karnofsky score of ≥70%, Eastern Cooperative Oncology Group (ECOG) ≤2, hepatic and hematic cytology tests within normal ranges, and creatinine purification \>75 ml per min, who accepted to participate in the study, and who signed the letter of informed consent.

Exclusion criteria: Patients with comorbidity with another type of cancer who refuse to enter the protocol; patients who require reduction of the chemotherapy dose due to alterations in their laboratory examinations; patients with a poor general health state; absence of histological diagnosis, and previous treatment with chemotherapy.

Statistical analysis With the purpose of description, the continuous variables will be expressed as arithmetic means, medians, and Standard deviations (SDs), the variable categories as proportions and 95% confidence intervals (95% CIs). Inferential comparisons will be conducted by means of the Student t test or the Mann-Whitney U test according to data distribution (normal and non-normal, respectively) determined by the Kolmogorov-Smirnov test, for example, comparison of age means between both groups. The X2 test or the Fisher exact test will be employed to evaluate significance among categorical variables, for example, both groups (atRA vs. placebo) of ECOG higher or lower than 80, stage IIIB vs. IV, history of smoking, RAR expression, and response. Statistical significance will be determined as a p value (p \<0.05) with a two-tailed test. PFS and GS times will be determined from day of initiation of chemotherapy until date of death, respectively, and will be analyzed by the Kaplan-Meier test. Comparisons between groups will be performed with the log-rank test. All variables were dichotomized analyses of the survival curves. Adjustment for potential confounders will be performed by means of Cox proportion multivariate regression analysis. The SPSS version 15 (SPSS, Inc., Chicago, IL, USA) software package will be used for data analysis.

Effect of All-trans Retinoic Acid With Chemotherapy Based on Paclitaxel and Cisplatin As First-line Treatment of Patients With Advanced Non-small Cell Lung Cancer and Expression of RAR-alfa and RAR-beta as Response Biomarker

Randomized Phase III Trial: Effect of All-trans Retinoic Acid With Chemotherapy Based on Paclitaxel and Cisplatin As First-line Treatment of Patients With Advanced Non-small Cell Lung Cancer and Expression of RAR-alfa and RAR-beta as Response Biomarkers

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization
Effect of All-trans Retinoic Acid With Chemotherapy Based in Paclitaxel and Cisplatin as First Line Treatment of Patients With Advanced Non-small Cell Lung Cancer	NCT01048645	Non-Small-Cell ...	ATRA PLACEBO	18 Years - 80 Years	National Institute of Cancerología
Effect of All-trans Retinoic Acid With Chemotherapy Based on Paclitaxel and Cisplatin As First-line Treatment of Patients With Advanced Non-small Cell Lung Cancer and Expression of RAR-alfa and RAR-beta as Response Biomarker	NCT01041833	Non Small Cell ...	atRA Placebo	18 Years - 80 Years	National Institute of Cancerología
Effect of All-trans Retinoic Acid With Chemotherapy Based in Paclitaxel and Cisplatin as First Line Treatment of Patients With Advanced Non-small Cell Lung Cancer	NCT01048645	Non-Small-Cell ...	ATRA PLACEBO	18 Years - 80 Years	National Institute of Cancerología

Spots Global Cancer Trial Database for retinoic acid receptor beta