| Pharmaco-therapeutic group: Antineoplastic agents, ATC Code: L01CD
02 Preclinical data Docetaxel is an antineoplastic agent which acts by promoting the
assembly of tubulin into stable microtubules and inhibits their
disassembly which leads to a marked decrease of free tubulin. The
binding of docetaxel to microtubules does not alter the number of
protofilaments. Docetaxel has been shown in vitro to disrupt the
microtubular network in cells which is essential for vital mitotic and
interphase cellular functions.Docetaxel was found to be cytotoxic in
vitro against various murine and human tumour cell lines and against
freshly excised human tumour cells in clonogenic assays. Docetaxel
achieves high intracellular concentrations with a long cell residence
time. In addition, docetaxel was found to be active on some but not all
cell lines over expressing the p-glycoprotein which is encoded by the
multidrug resistance gene. In vivo, docetaxel is schedule independent
and has a broad spectrum of experimental antitumour activity against
advanced murine and human grafted tumours.Clinical data Breast cancer Docetaxel in combination with doxorubicin and
cyclophosphamide: adjuvant therapyData from a multicenter open
label randomized trial support the use of docetaxel for the adjuvant
treatment of patients with operable node-positive breast cancer and KPS
80%, between 18 and 70 years of age. After stratification
according to the number of positive lymph nodes (1-3, 4+), 1491 patients
were randomized to receive either docetaxel 75mg/m2
administered 1-hour after doxorubicin 50mg/m2 and
cyclophosphamide 500mg/m2 (TAC arm), or doxorubicin
50mg/m2 followed by fluorouracil 500mg/m2 and
cyclosphosphamide 500mg/m2 (FAC arm). Both regimens were
administered once every 3 weeks for 6 cycles. Docetaxel was administered
as a 1-hour infusion, all other drugs were given as IV bolus on day one.
G-CSF was administered as secondary prophylaxis to patients who
experienced complicated neutropenia (febrile neutropenia, prolonged
neutropenia, or infection). Patients on the TAC arm received antibiotic
prophylaxis with ciprofloxacin 500mg orally twice daily for 10 days
starting on day 5 of each cycle, or equivalent. In both arms, after the
last cycle of chemotherapy, patients with positive estrogen and/or
progesterone receptors received tamoxifen 20mg daily for up to 5 years.
Adjuvant radiation therapy was prescribed according to guidelines in
place at participating institutions and was given to 69% of patients who
received TAC and 72% of patients who received FAC. An interim
analysis was performed with a median follow up of 55 months.
Significantly longer disease-free survival for the TAC arm compared to
the FAC arm was demonstrated. Incidence of relapses at 5 years was
reduced in patients receiving TAC compared to those who received FAC
(25% versus 32%, respectively) i.e. an absolute risk reduction by 7%
(p=0.001). Overall survival at 5 years was also significantly increased
with TAC compared to FAC (87% versus 81%, respectively) i.e. an absolute
reduction of the risk of death by 6% (p=0.008). TAC-treated patient
subsets according to prospectively defined major prognostic factors were
analyzed:| | | Disease Free Survival | Overall Survival | Patient subset | Number of patients | Hazard ratio* | 95% CI | P= | Hazard ratio* | 95% CI | P= | No of positive nodes Overall 1-3 4+ | 745 467 278 | 0.72 0.61 0.83 | 0.59-0.88 0.46-0.82 0.63-1.08 | 0.001 0.0009 0.17 | 0.70 0.45 0.94 | 0.53-0.91 0.29-0.70 0.66-1.33 | 0.008 0.0002 0.72 | *a hazard ratio of less than 1 indicates that TAC is
associated with a longer disease-free survival and overall survival
compared to FACThe beneficial effect of TAC was not proven in
patients with 4 and more positive nodes (37% of the population) at the
interim analysis stage. The effect appears to be less pronounced than in
patients with 1-3 positive nodes. The benefit/risk ratio was not defined
fully in patients with 4 and more positive nodes at this analysis
stage.Docetaxel as single agentTwo randomised
phase III comparative studies, involving a total of 326 alkylating or
392 anthracycline failure metastatic breast cancer patients, have been
performed with docetaxel at the recommended dose and regimen of
100mg/m²
every 3 weeks.In alkylating-failure patients, docetaxel was compared
to doxorubicin (75mg/m² every 3 weeks). Without affecting overall survival time
(docetaxel 15 months vs. doxorubicin 14 months, p=0.38) or time to
progression (docetaxel 27 weeks vs. doxorubicin 23 weeks, p=0.54),
docetaxel increased response rate (52% vs. 37%, p=0.01) and shortened
time to response (12 weeks vs. 23 weeks, p=0.007). Three docetaxel
patients (2%) discontinued the treatment due to fluid retention, whereas
15 doxorubicin patients (9%) discontinued due to cardiac toxicity (three
cases of fatal congestive heart failure).In anthracycline-failure
patients, docetaxel was compared to the combination of Mitomycin C and
Vinblastine (12mg/m² every 6 weeks and 6mg/m² every 3 weeks). Docetaxel increased
response rate (33% vs. 12%, p < 0.0001), prolonged time to
progression (19 weeks vs. 11 weeks, p=0.0004) and prolonged overall
survival (11 months vs. 9 months, p=0.01).During these two phase III
studies, the safety profile of docetaxel was consistent with the safety
profile observed in phase II studies (see section 4.8).An
open-label, multicenter, randomized phase III study was conducted to
compare docetaxel monotherapy and paclitaxel in the treatment of
advanced breast cancer in patients whose previous therapy should have
included an anthracycline. A total of 449 patients were randomized to
receive either docetaxel monotherapy 100mg/m² as a 1 hour
infusion or paclitaxel 175mg/m² as a 3 hour infusion. Both regimens
were administered every 3 weeks.Without affecting the primary
endpoint, overall response rate (32% vs 25%, p=0.10), docetaxel
prolonged median time to progression (24.6 weeks vs 15.6 weeks; p <
0.01) and median survival (15.3 months vs 12.7 months; p=0.03).More
grade 3/4 adverse events were observed for docetaxel monotherapy (55.4%)
compared to paclitaxel (23.0%).Docetaxel in combination
with doxorubicinOne large randomized phase III study, involving
429 previously untreated patients with metastatic disease, has been
performed with doxorubicin (50mg/m²) in combination with docetaxel
(75mg/m²) (AT arm) versus doxorubicin (60mg/m²) in
combination with cyclophosphamide (600mg/m²) (AC arm). Both regimens were
administered on day 1 every 3 weeks.• Time to progression (TTP) was significantly
longer in the AT arm versus AC arm, p=0.0138. The median TTP was 37.3
weeks (95%CI :33.4 - 42.1) in AT arm and 31.9 weeks (95%CI : 27.4 -
36.0) in AC arm.•
Overall response rate (ORR) was significantly higher in the AT arm
versus AC arm, p=0.009. The ORR was 59.3% (95%CI : 52.8 - 65.9) in AT
arm versus 46.5% (95%CI : 39.8 - 53.2) in AC arm.In this trial, AT
arm showed a higher incidence of severe neutropenia (90% versus 68.6%),
febrile neutropenia (33.3% versus 10%), infection (8% versus 2.4%),
diarrhea (7.5% versus 1.4%), asthenia (8.5% versus 2.4%), and pain (2.8%
versus 0%) than AC arm. On the other hand, AC arm showed a higher
incidence of severe anemia (15.8% versus 8.5%) than AT arm, and, in
addition, a higher incidence of severe cardiac toxicity: congestive
heart failure (3.8% versus 2.8%), absolute LVEF decrease 20% (13.1 % versus 6.1%), absolute LVEF decrease 30% (6.2% versus 1.1%). Toxic deaths occurred in 1 patient
in the AT arm (congestive heart failure) and in 4 patients in the AC arm
(1 due to septic shock and 3 due to congestive heart failure). In both
arms, quality of life measured by the EORTC questionnaire was comparable
and stable during treatment and follow-up.Docetaxel in
combination with trastuzumabDocetaxel in combination with
trastuzumab was studied for the treatment of patients with metastatic
breast cancer whose tumors overexpress HER2, and who previously had not
received chemotherapy for metastatic disease. One hundred eighty six
patients were randomized to receive docetaxel (100mg/m2) with
or without trastuzumab; 60% of patients received prior
anthracyclinebased adjuvant chemotherapy. Docetaxel plus trastuzumab was
efficacious in patients whether or not they had received prior adjuvant
anthracyclines. The main test method used to determine HER2 positivity
in this pivotal trial was immunohistochemistry (IHC). A minority of
patients were tested using fluorescence in-situ hybridization (FISH). In
this trial, 87% of patients had disease that was IHC 3+, and 95% of
patients entered had disease that was IHC 3+ and/or FISH positive.
Efficacy results are summarized in the following table:Parameter | Docetaxel plus trastuzumab1 n=92 | Docetaxel1 n=94 | Response rate (95% CI) | 61% (50-71) | 34% (25-45) | Median Duration of response (months) (95% CI) | 11.4 (9.2-15.0) | 5.1 (4.4-6.2) | Median TTP (months) (95% CI) | 10.6 (7.6-12.9) | 5.7 (5.0-6.5) | Median Survival (months) (95% CI) | 30.52 (26.8-ne) | 22.12 (17.6-28.9) | TTP=time to progression; ne indicates that it could not be estimated or it was not yet
reached.1Full analysis set
(intent-to-treat)2 Estimated median
survivalDocetaxel in combination with
capecitabineData from one multicenter, randomised, controlled
phase III clinical trial support the use of docetaxel in combination
with capecitabine for treatment of patients with locally advanced or
metastatic breast cancer after failure of cytotoxic chemotherapy,
including an anthracycline. In this trial, 255 patients were randomised
to treatment with docetaxel (75mg/m2 as a 1 hour intravenous
infusion every 3 weeks) and capecitabine (1250mg/m2 twice
daily for 2 weeks followed by 1-week rest period). 256 patients were
randomised to treatment with docetaxel alone (100mg/ m2 as a
1 hour intravenous infusion every 3 weeks). Survival was superior in the
docetaxel +capecitabine combination arm (p=0.0126). Median survival was
442 days (docetaxel + capecitabine) vs. 352 days (docetaxel alone). The
overall objective response rates in the all-randomised population
(investigator assessment) were 41.6% (docetaxel + capecitabine) vs.
29.7% (docetaxel alone); p = 0.0058. Time to progressive disease was
superior in the docetaxel + capecitabine combination arm (p <
0.0001). The median time to progression was 186 days (docetaxel +
capecitabine) vs. 128 days (docetaxel alone).Non-Small Cell Lung Cancer Patients previously treated with chemotherapy with or without
radiotherapy In a phase III study, in previously treated patients, time to
progression (12.3 weeks versus 7 weeks) and overall survival were
significantly longer for docetaxel at 75mg/m² compared to
Best Supportive Care. The 1-year survival rate was also significantly
longer in docetaxel (40%) versus BSC (16%). There was less use of
morphinic analgesic (p < 0.01), non-morphinic analgesics (p <
0.01), other diseaserelated medications (p=0.06) and radiotherapy (p
< 0.01) in patients treated with docetaxel at 75mg/m² compared to
those with BSC.The overall response rate was 6.8% in the evaluable
patients, and the median duration of response was 26.1
weeks.Docetaxel in combination with platinum agents in
chemotherapy-naïve
patientsIn a Phase III trial, 1218 patients with unresectable
stage IIIB or IV NSCLC, with KPS of 70% or greater, and who did not
receive previous chemotherapy for this condition, were randomised to
either docetaxel (T) 75mg/m2 as a 1 hour infusion immediately
followed by cisplatin (Cis) 75mg/ m2 over 30-60 minutes every
3 weeks, docetaxel 75mg/ m2 as a 1 hour infusion in
combination with carboplatin (AUC 6mg/mlmin) over 30-60 minutes every 3 weeks, or
vinorelbine (V) 25mg/ m2 administered over 6-10 minutes on
days 1, 8, 15, 22 followed by cisplatin 100mg/ m2
administered on day 1 of cycles repeated every 4 weeks.Survival
data, median time to progression and response rates for two arms of the
study are illustrated in the following table:| | TCis n=408 | VCis N=404 | Statistical Analysis | Overall Survival (Primary end-point): Median Survival (months) 1-year Survival (%) 2-year Survival (%) | 11.3 46 21 | 10.1 41 14 | Hazard Ratio: 1.122 [97.2% CI: 0.937; 1.342]* Treatment difference: 5.4% [95% CI: -1.1; 12.0] Treatment difference: 6.2% [95% CI: 0.2; 12.3] | Median Time to Progression (weeks): | 22.0 | 23.0 | Hazard Ratio: 1.032 [95% CI: 0.876; 1.216] | Overall Response Rate (%): | 31.6 | 24.5 | Treatment difference: 7.1% [95% CI: 0.7; 13.5] | *: Corrected for multiple comparisons and adjusted for
stratification factors (stage of disease and region of treatment), based
on evaluable patient population.Secondary end-points included change
of pain, global rating of quality of life by EuroQoL-5D, Lung Cancer
Symptom Scale, and changes in Karnosfky performance status. Results on
these end-points were supportive of the primary end-points
results.For docetaxel/carboplatin combination, neither equivalent
nor non-inferior efficacy could be proven compared to the reference
treatment combination VCis.Prostate Cancer The safety and efficacy of docetaxel in combination with prednisone
or prednisolone in patients with hormone refractory metastatic prostate
cancer were evaluated in a randomized multicenter Phase III trial. A
total of 1006 patients with KPS 60 were randomized to the
following treatment groups:• Docetaxel 75mg/m2 every 3 weeks for 10
cycles.• Docetaxel
30mg/m2 administered weekly for the first 5 weeks in a 6 week
cycle for 5 cycles.•
Mitoxantrone 12mg/m2 every 3 weeks for 10 cycles.All 3
regimens were administered in combination with prednisone or
prednisolone 5mg twice daily, continuously.Patients who received
docetaxel every three weeks demonstrated significantly longer overall
survival compared to those treated with mitoxantrone. The increase in
survival seen in the docetaxel weekly arm was not statistically
significant compared to the mitoxantrone control arm. Efficacy endpoints
for the docetaxel arms versus the control arm are summarized in the
following table:Endpoint | Docetaxel every 3 weeks | Docetaxel every week | Mitoxantrone every 3 weeks | Number of patients Median survival (months) 95% CI Hazard ratio 95% CI p-value
* | 335 18.9 (17.0-21.2) 0.761 (0.619-0.936) 0.0094 | 334 17.4 (15.7-19.0) 0.912 (0.747-1.113) 0.3624 | 337 16.5 (14.4-18.6) -- -- -- | Number of patients PSA** response rate (%) 95% CI p-value* | 291 45.4 (39.5-51.3) 0.0005 | 282 47.9 (41.9-53.9) <0.0001 | 300 31.7 (26.4-37.3) -- | Number of patients Pain response rate (%) 95% CI p-value* | 153 34.6 (27.1-42.7) 0.0107 | 154 31.2 (24.0-39.1) 0.0798 | 157 21.7 (15.5-28.9) -- | Number of patients Tumor response rate (%) 95% CI p-value* | 141 12.1 (7.2-18.6) 0.1112 | 134 8.2 (4.2-14.2) 0.5853 | 137 6.6 (3.0-12.1) -- |
Stratified log rank test*Threshold for statistical significance=0.0175 **PSA: Prostate-Specific Antigen Given the fact that docetaxel every week presented a slightly better
safety profile than docetaxel every 3 weeks, it is possible that certain
patients may benefit from docetaxel every week.No statistical
differences were observed between treatment groups for Global Quality of
Life. Gastric Adenocarcinoma A multicenter, open-label, randomized trial, was conducted to
evaluate the safety and efficacy of docetaxel for the treatment of
patients with metastatic gastric adenocarcinoma, including
adenocarcinoma of the gastroesophageal junction, who had not received
prior chemotherapy for metastatic disease. A total of 445 patients with
KPS>70 were treated with either docetaxel (T) (75mg/m2 on
day 1) in combination with cisplatin (C) (75mg/m2 on day 1)
and 5-fluorouracil (F) (750mg/m2 per day for 5 days) or
cisplatin (100mg/m2 on day 1) and 5-fluorouracil
(1000mg/m2 per day for 5 days). The length of a treatment
cycle was 3 weeks for the TCF arm and 4 weeks for the CF arm. The median
number of cycles administered per patient was 6 (with a range of 1-16)
for the TCF arm compared to 4 (with a range of 1-12) for the CF arm.
Time to progression (TTP) was the primary endpoint. The risk reduction
of progression was 32.1% and was associated with a significantly longer
TTP (p=0.0004) in favor of the TCF arm. Overall survival was also
significantly longer (p=0.0201) in favor of the TCF arm with a risk
reduction of mortality of 22.7%. Efficacy results are summarized in the
following table:Efficacy of docetaxel in the treatment of patients with gastric
adenocarcinoma Endpoint | TCF n=221 | CF N=224 | Median TTP (months) (95%CI) Hazard ratio (95%CI) *p-value | 5.6 (4.86-5.91) | 3.7 (3.45-4.47) | 1.473 (1.189-1.825) 0.0004 | Median survival (months) (95%CI) 2-year estimate (%) Hazard ratio (95%CI) *p-value | 9.2 (8.38-10.58) 18.4 | 8.6 (7.16-9.46) 8.8 | 1.293 (1.041-1.606) 0.0201 | Overall Response Rate (CR+PR) (%) p-value | 36.7 | 25.4 | 0.0106 | Progressive Disease as Best Overall Response (%) | 16.7 | 25.9 | *Unstratified logrank testSubgroup analyses across age,
gender and race consistently favored the TCF arm compared to the CF
arm.A survival update analysis conducted with a median follow-up
time of 41.6 months no longer showed a statistically significant
difference although always in favour of the TCF regimen and showed that
the benefit of TCF over CF is clearly observed between 18 and 30 months
of follow up.Overall, quality of life (QoL) and clinical benefit
results consistently indicated improvement in favor of the TCF arm.
Patients treated with TCF had a longer time to 5% definitive
deterioration of global health status on the QLQ-C30 questionnaire
(p=0.0121) and a longer time to definitive worsening of Karnofsky
performance status (p=0.0088) compared to patients treated with CF.Head and neck cancer • Induction
chemotherapy followed by radiotherapy (TAX323)The safety and
efficacy of docetaxel in the induction treatment of patients with
squamous cell carcinoma of the head and neck (SCCHN) was evaluated in a
phase III, multicenter, open-label, randomized trial (TAX323). In this
study, 358 patients with inoperable locally advanced SCCHN, and WHO
perfomance status 0 or 1, were randomized to one of two treatment arms.
Patients on the docetaxel arm received docetaxel (T) 75mg/m2
followed by cisplatin (P) 75mg/m2 followed by 5-fluorouracil
(F) 750mg/m2 per day as a continuous infusion for 5 days.
This regimen was administered every three weeks for 4 cycles in case at
least a minor response ( 25% reduction in
bidimensionally measured tumour size) was observed after 2 cycles. At
the end of chemotherapy, with a minimal interval of 4 weeks and a
maximal interval of 7 weeks, patients whose disease did not progress
received radiotherapy (RT) according to institutional guidelines for 7
weeks (TPF/RT). Patients on the comparator arm received cisplatin (P)
100mg/m2 followed by 5-fluorouracil (F) 1000mg/m2
per day for 5 days. This regimen was administered every three weeks for
4 cycles in case at least a minor response ( 25% reduction in bidimensionally measured tumour size) was
observed after 2 cycles. At the end of chemotherapy, with a minimal
interval of 4 weeks and a maximal interval of 7 weeks, patients whose
disease did not progress received radiotherapy (RT) according to
institutional guidelines for 7 weeks (PF/RT). Locoregional therapy with
radiation was delivered either with a conventional fraction (1.8 Gy -
2.0 Gy once a day, 5 days per week for a total dose of 66 to 70 Gy), or
accelerated/hyperfractionated regimens of radiation therapy (twice a
day, with a minimum interfraction interval of 6 hours, 5 days per week).
A total of 70 Gy was recommended for accelerated regimens and 74 Gy for
hyperfractionated schemes. Surgical resection was allowed following
chemotherapy, before or after radiotherapy. Patients on the TPF arm
received antibiotic prophylaxis with ciprofloxacin 500mg orally twice
daily for 10 days starting on day 5 of each cycle, or equivalent. The
primary endpoint in this study, progression-free survival (PFS), was
significantly longer in the TPF arm compared to the PF arm, p = 0.0042
(median PFS: 11.4 vs. 8.3 months respectively) with an overall median
follow up time of 33.7 months. Median overall survival was also
significantly longer in favor of the TPF arm compared to the PF arm
(median OS: 18.6 vs. 14.5 months respectively) with a 28% risk reduction
of mortality, p = 0.0128. Efficacy results are presented in the table
below:Efficacy of docetaxel in the induction treatment of patients with
inoperable locally advanced SCCHN (Intent-to-Treat Analysis) Endpoint | Docetaxel+ Cis+5-FU n=177 | Cis+5-FU n=181 | Median progression free survival
(months) (95%CI) Adjusted Hazard ratio (95%CI) *p-value | 11.4 (10.1-14.0) | 8.3 (7.4-9.1) | 0.70 (0.55-0.89) 0.0042 | Median survival (months) (95%CI) Hazard ratio (95%CI) **p-value | 18.6 (15.7-24.0) | 14.5 (11.6-18.7) | 0.72 (0.56-0.93) 0.0128 | Best overall response to chemotherapy
(%) (95%CI) ***p-value | 67.8 (60.4-74.6) | 53.6 (46.0-61.0) | 0.006 | Best overall response to study
treatment [chemotherapy ± radiotherapy] (%) (95%CI) ***p-value | 72.3 (65.1-78.8) | 58.6 (51.0-65.8) | 0.006 | Median duration of response to
chemotherapy ± radiotherapy (months) (95%CI) Hazard ratio (95%CI) **p-value | n=128 15.7 (13.4-24.6) | n=106 11.7 (10.2-17.4) | 0.72 (0.52-0.99) 0.0457 | A Hazard ratio of less than 1 favors
docetaxel+Cisplatin+5-FU*Cox model (adjustment for Primary tumor
site, T and N clinical stages and PSWHO)**Logrank test***
Chi-square testQuality of life parameters Patients treated with TPF experienced significantly less
deterioration of their Global health score compared to those treated
with PF (p=0.01, using the EORTC QLQ-C30 scale).Clinical benefit parameters The performance status scale, for head and neck (PSS-HN) subscales
designed to measure understandability of speech, ability to eat in
public, and normalcy of diet, was significantly in favor of TPF as
compared to PF.Median time to first deterioration of WHO performance
status was significantly longer in the TPF arm compared to PF. Pain
intensity score improved during treatment in both groups indicating
adequate pain management.• Induction chemotherapy followed by
chemoradiotherapy (TAX324)The safety and efficacy of docetaxel in
the induction treatment of patients with locally advanced squamous cell
carcinoma of the head and neck (SCCHN) was evaluated in a randomized,
multicenter open-label, phase III, trial (TAX324). In this study, 501
patients, with locally advanced SCCHN, and a WHO performance status of 0
or 1, were randomized to one of two arms. The study population comprised
patients with technically unresectable disease, patients with low
probability of surgical cure and patients aiming at organ preservation.
The efficacy and safety evaluation solely addressed survival endpoints
and the success of organ preservation was not formally addressed.
Patients on the docetaxel arm received docetaxel (T) 75mg/m² by
intravenous infusion on day 1 followed by cisplatin (P) 100mg/m²
administered as a 30-minute to three-hour intravenous infusion, followed
by the continuous intravenous infusion of 5-fluorouracil (F)
1000mg/m²/day from day 1 to day 4. The cycles were repeated every 3
weeks for 3 cycles. All patients who did not have progressive disease
were to receive chemoradiotherapy (CRT) as per protocol (TPF/CRT).
Patients on the comparator arm received cisplatin (P) 100mg/m² as a
30-minute to three-hour intravenous infusion on day 1 followed by the
continuous intravenous infusion of 5-fluorouracil (F) 1000mg/m²/day from
day 1 to day 5. The cycles were repeated every 3 weeks for 3 cycles. All
patients who did not have progressive disease were to receive CRT as per
protocol (PF/CRT).Patients in both treatment arms were to receive 7
weeks of CRT following induction chemotherapy with a minimum interval of
3 weeks and no later than 8 weeks after start of the last cycle (day 22
to day 56 of last cycle). During radiotherapy, carboplatin (AUC 1.5) was
given weekly as a one-hour intravenous infusion for a maximum of 7
doses. Radiation was delivered with megavoltage equipment using once
daily fractionation (2 Gy per day, 5 days per week for 7 weeks, for a
total dose of 70-72 Gy). Surgery on the primary site of disease and/or
neck could be considered at anytime following completion of CRT. All
patients on the docetaxel-containing arm of the study received
prophylactic antibiotics. The primary efficacy endpoint in this study,
overall survival (OS) was significantly longer (log-rank test, p =
0.0058) with the docetaxel-containing regimen compared to PF (median OS:
70.6 versus 30.1 months respectively), with a 30% risk reduction in
mortality compared to PF (hazard ratio (HR) = 0.70, 95% confidence
interval (CI) = 0.54-0.90) with an overall median follow up time of 41.9
months. The secondary endpoint, PFS, demonstrated a 29% risk reduction
of progression or death and a 22 month improvement in median PFS (35.5
months for TPF and 13.1 for PF). This was also statistically significant
with an HR of 0.71; 95% CI 0.56-0.90; log-rank testp = 0.004.
Efficacy results are presented in the table below:Efficacy of docetaxel in the induction treatment of patients with
locally advanced SCCHN (Intent-to-Treat Analysis) Endpoint | Docetaxel + Cis + 5-FU n=225 | Cis + 5-FU n=246 | Median overall survival (months) (95% CI) Hazard ratio (95% CI) *p-value | 70.6 (49.0-NA) | 30.1 (20.9-51.5) | 0.70 (0.54-0.90) 0.0058 | Median PFS (months) (95% CI) Hazard ratio (95% CI) **p-value | 35.5 (19.3-NA) | 13.1 (10.6-20.2) | 0.71 (0.56-0.90) 0.004 | Best overall response (CR+PR) to
chemotherapy (%) (95% CI) ***p-value | 71.8 (65.8-77.2) | 64.2 (57.9-70.2) | 0.070 | Best overall response (CR+PR) to study
treatment [chemotherapy ± chemoradiotherapy] (%) (95% CI) *** p-value | 76.5 (70.8-81.5) | 71.5 (65.5-77.1) | 0.209 | A Hazard ratio of less than 1 favors docetaxel + cisplation
+ fluorouracil*un-adjusted log-rank test**un-adjusted log-rank
test, not adjusted for multiple comparisons***Chi square test, not
adjusted for multiple comparisonsNA not applicable | |