Pazopanib Plus Lapatinib Compared to Lapatinib Alone and Pazopanib Alone In Subjects With Metastatic Cervical Cancer

Sponsor
GlaxoSmithKline (Industry)
Overall Status
Completed
CT.gov ID
NCT00430781
Collaborator
(none)
228
63
3
56
3.6
0.1

Study Details

Study Description

Brief Summary

This study is being conducted to compare the efficacy and safety of pazopanib in combination with lapatinib with that of lapatinib alone or pazopanib alone in subjects with metastatic cervical cancer

Condition or Disease Intervention/Treatment Phase
  • Drug: pazopanib (GW786034)
  • Drug: lapatinib (GW572016)
Phase 2

Detailed Description

A Phase II, Open-Label, Randomized, Multicenter Trial of Pazopanib (GW786034) in Combination with Lapatinib (GW572016) Compared to Pazopanib Monotherapy and Lapatinib Monotherapy in Subjects with International Federation of Gynecology (FIGO) Stage IVB or Recurrent or Persistent Cervical Cancer with Zero or One Prior Chemotherapy Regimen for Advanced/Recurrent Disease

Study Design

Study Type:
Interventional
Actual Enrollment :
228 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase II, Open-Label, Randomized, Multicenter Trial of Pazopanib (GW786034) in Combination With Lapatinib (GW572016) Compared to Pazopanib Monotherapy and Lapatinib Monotherapy in Subjects With FIGO Stage IVB or Recurrent or Persistent Cervical Cancer With Zero or One Prior Chemotherapy Regimen
Study Start Date :
Nov 1, 2006
Actual Primary Completion Date :
Jul 1, 2008
Actual Study Completion Date :
Jul 1, 2011

Arms and Interventions

Arm Intervention/Treatment
Experimental: Combination arm

Pazopanib plus lapatinib

Drug: lapatinib (GW572016)

Active Comparator: Lapatinib monotherapy

Lapatinib

Drug: lapatinib (GW572016)

Active Comparator: Pazopanib monotherapy

Pazopanib

Drug: pazopanib (GW786034)

Outcome Measures

Primary Outcome Measures

  1. Progression-free Survival (PFS) in Interim Analysis [From randomization until at least 35 PFS events in pairwise comparison of the three treatment arms (Interim Analysis; up to 52.14 weeks)]

    PFS is defined as the interval between the date of randomization and the date of disease progression or death due to any cause. The study was designed to test Combination vs. Lapatinib first. The result indicated that Combination would not show improvement over Lapatinib even if followed until the final analysis and the Combination arm was terminated. The monotherapy arms continued to the final analysis. Data shown here are from this interim analysis.

  2. Progression-free Survival (PFS) in Final Analysis [From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)]

    PFS is defined as the interval between the date of randomization and the date of disease progression or death due to any cause. This study began as a 3-arm study. The combination arm was terminated at the interim analysis. The monotherapy arms continued to final analysis. Data shown here are from the final analysis.

Secondary Outcome Measures

  1. Overall Survival [From Randomization (11 December 2006) until approximately 78% overall survival events at the time of the second overall survival update (3 March 2010) (up to 168.29 weeks)]

    Overall survival is defined as the time from randomization until death due to any cause.

  2. Clinical Benefit Response [From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)]

    Clinical benefit response is defined as the number of participants with evidence of complete (CR) or partial (PR) tumor response or stable disease (SD) for at least 6 months (183 days). Per Response Evaluation Criteria In Solid Tumors (RECIST): CR, all detectable tumor has disappeared; PR, a >=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum; Stable Disease, small changes that do not meet previously given criteria. Confirmation requires at least 2 assessments of CR/PR with at least 4 weeks between assessments.

  3. Response [From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)]

    Response is defined as the number of participants achieving either a complete or partial tumor response per RECIST criteria. CR, all detectable tumor has disappeared; PR, a >=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum.

  4. Time to Response [From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)]

    For the subset of participants who showed a confirmed CR or PR, time to response was defined as the time from randomization until the first documented evidence of CR or PR (whichever status was recorded first). CR, all detectable tumor has disappeared; PR, a >=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum.

  5. Duration of Response [From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)]

    For participants who had a CR or PR, the duration of response was defined as the time from first documented evidence of PR or CR until the first documented sign of disease progression or death. CR, all detectable tumor has disappeared; PR, a >=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum.

  6. Safety and Tolerability of Pazopanib, Lapatinib and the Combination of Pazopanib and Lapatinib [From Randomization (11 December 2006) until last participant had last visit (28 July 2011) in combined population of two monotherapy arms (up to 241.43 weeks)]

    Safety was assessed as the number of participants experiencing a serious adverse event (SAE) or an adverse event (AE). See the adverse event module for safety data.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
Female
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • A subject will be eligible for inclusion in this study only if all of the following criteria are met:

  • Signed, written informed consent prior to performing any study-related procedures

  • Female subjects ≥18 years of age

  • FIGO Stage IVB, or recurrent or persistent cervical cancer

  • Life expectancy of at least 12 weeks

  • ECOG status of 0 or 1.

  • Histologically confirmed FIGO Stage IVB, or recurrent or persistent squamous cell carcinoma, adenosquamous carcinoma, or adenocarcinoma of the cervix which is not amenable to curative treatment with surgery and/or radiation therapy

  • Measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest dimension to be recorded). Each lesion must be ≥ 20 mm when measured by conventional techniques, including palpitation, plain x-ray, CT and MRI, or ≥10 mm when measured by spiral CT.

  • At least one "target lesion" to be used to assess response as defined by Response Evaluation Criteria in Solid Tumors (RECIST; Terasse, 2000). Tumors within a previously irradiated field will be designated as "non-target" lesions unless progression is documented or a biopsy is obtained to confirm persistence at least 90 days following completion of radiation therapy.

  • Received 0 or 1 prior chemotherapy regimen for metastatic disease.

  • Note: Chemotherapy given in combination with radiation therapy as a radiosensitizer does not count toward this prior therapy limit

  • Recovered from the effects of surgery or chemotherapy. At least three weeks must have elapsed from the last administration of chemotherapy.

  • Adequate organ and bone marrow function as defined in Table 1.

  • Table 1:(Definitions for Adequate Organ Function)

  • System:(Laboratory Values)

  • Hematologic: Absolute neutrophil count (ANC)(≥ 1.5 X 109/L)Hemoglobin1(≥9 g/dL)Platelets(≥100 X 109/L)

  • Hepatic: Total bilirubin (≤1.5 X ULN)AST and ALT (≤2.5 X ULN)

  • Renal: Calculated creatinine clearance2 (≥50 mL/min)

  • Urine protein3 (Negative, trace or +1 by dipstick urinalysis or <1.0 gram determined by 24 hour urine protein analysis.)

  • Subjects may not have had a transfusion within 7 days of screening assessment.

  • Calculated by Cockcroft Gault formula See Appendix 7: Renal Function Tests

  • A patient should first be screened with dipstick urinalysis. If urine protein by dipstick analysis is ≥2+, then a 24-hour urine protein must be assessed and 24 hour urine protein must be <1 g protein to be eligible.

  • Ability to swallow and retain oral medication.

  • A female is eligible to enter and participate in this study if she is of:

  • Non-childbearing potential (i.e., physiologically incapable of becoming pregnant), including any female who has had:

  • A hysterectomy

  • A bilateral oophorectomy (ovariectomy)

  • A bilateral tubal ligation

  • Is post-menopausal (total cessation of menses for ≥ 1 year)

  • Childbearing potential, has a negative serum pregnancy test within 2 weeks prior to the first dose of study treatment, preferably as close to the first dose as possible, and agrees to use adequate contraception. GSK acceptable contraceptive methods, when used consistently and in accordance with both the product label and the instructions of the physician, are as follows:

  • An intrauterine device with a documented failure rate of less than 1% per year.

  • Vasectomized partner who is sterile prior to the female subject's entry and is the sole sexual partner for that female.

  • Complete abstinence from sexual intercourse for 14 days before exposure to investigation product, through the dosing period, and for at least 21 days after the last dose of investigational product.

  • Double-barrier contraception (condom with spermicidal jelly, foam suppository, or film; diaphragm with spermicide; or male condom and diaphragm with spermicide).

Note: Oral contraceptives are not reliable due to potential drug-drug interactions.

  • Subjects must provide written informed consent prior to performance of study specific procedures or assessments, and must be willing to comply with treatment and follow-up as outlined in the protocol. Procedures conducted as apart of routine clinical management of the patient (e.g., blood count, imaging study) and obtained prior to signed informed consent may be utilized for screening purposes provided these tests are obtained as specified in the protocol
Exclusion Criteria:
  • A subject will not be eligible for inclusion in this study if any of the following criteria apply:

  • Neuroendocrine or small cell carcinoma of the cervix.

  • Prior use of any biologic therapy with VEGF, VEGFR, or ErbB1/ErbB2 inhibitors.

  • Concurrent cancer therapy (chemotherapy, radiation therapy, surgery, immunotherapy, biologic therapy, hormonal therapy, and tumor embolization).

  • Concurrent treatment with an investigational agent or participation in another clinical trial.

  • Use of an investigational anti-cancer drug within 28 days or 5 half-lives, whichever is longer, preceding the first dose of study medication.

  • Has taken or is taking prohibited medications listed in the protocol.

  • Any serious and/or unstable pre-existing medical, psychiatric, or other conditions that could interfere with patient's safety, obtaining informed consent or compliance to the study.

  • History of another malignancy. Note: Patients who have had another malignancy and have been disease-free for 5 years, or patients with a history of completely resected non-melanomatous skin carcinoma or successfully treated in situ carcinoma are eligible.

  • History or clinical evidence of central nervous system (CNS) metastases or leptomeningeal carcinomatosis. Routine screening with CNS imaging studies (computed tomography [CT] or magnetic resonance imaging [MRI]) is required only if clinically indicated.

  • Malabsorption Syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel.

  • Active peptic ulcer disease, inflammatory bowel disease, or other gastrointestinal condition increasing the risk of perforation; history of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscess within 4 weeks prior to beginning therapy.

  • Presence of uncontrolled infection.

  • Known immediate or delayed hypersensitivity reaction or idiosyncrasy to drugs chemically related to pazopanib.

  • Corrected QT interval (QTc) prolongation defined as QTc interval > 470 msecs.

  • History of any one of the following cardiac conditions within the past 6 months:

  • Cardiac angioplasty or stenting

  • Myocardial infarction

  • Unstable angina

  • History of cerebrovascular accident or pulmonary embolus within the past 6 months.

  • Has Class III or IV heart failure as defined by the New York Heart Association (NYHA) functional classification system (See Appendix 6)

  • Poorly controlled hypertension (systolic blood pressure (SBP) of ≥ 140mmHg, or diastolic blood pressure (DBP) of ≥ 90mmHg).

  • Note: Initiation or adjustment of antihypertensive medication(s) is permitted prior to study entry. The blood pressure (BP) must be re-assessed on two occasions that are separated by a minimum of 24 hours. The mean SBP/DBP values from both BP assessments must be < 140/90mmHg in order for a subject to be eligible for the study.

  • History of untreated deep venous thrombosis (DVT) within the past 6 months (e.g. calf vein thrombosis).

  • Note: Patients with recent DVT who are treated with therapeutic anti-coagulant agents (excluding therapeutic warfarin) for at least 6 weeks are eligible.

  • Presence of any non-healing, non-tumor related wound, fracture, or ulcer, or the presence of symptomatic peripheral vascular disease.

  • Subjects with bilateral hydronephrosis which cannot be alleviated by ureteral stents or percutaneous drainage.

  • Major surgical procedure, open biopsy, or significant traumatic injury within 4 weeks prior to beginning therapy, or anticipation of the need for a major surgical procedure during the course of the study; minor surgical procedures such as fine needle aspiration or core biopsy within 1 week prior to beginning therapy are also excluded.

  • Unable to swallow and retain orally administered medication.

  • Pregnant or lactating female.

Contacts and Locations

Locations

Site City State Country Postal Code
1 GSK Investigational Site Los Angeles California United States 90033
2 GSK Investigational Site Orange California United States 92868
3 GSK Investigational Site Stanford California United States 94305-5317
4 GSK Investigational Site Augusta Georgia United States 30912
5 GSK Investigational Site Boston Massachusetts United States 02115
6 GSK Investigational Site Albuquerque New Mexico United States 87131-5276
7 GSK Investigational Site New York New York United States 10016
8 GSK Investigational Site Cleveland Ohio United States 44106
9 GSK Investigational Site Columbus Ohio United States 43214
10 GSK Investigational Site Oklahoma City Oklahoma United States 73104
11 GSK Investigational Site Chattanooga Tennessee United States 37403
12 GSK Investigational Site Dallas Texas United States 75390
13 GSK Investigational Site Capital Federal Buenos Aires Argentina C1405CUB
14 GSK Investigational Site Ciudad Autonoma de Buenos Aires Buenos Aires Argentina C1185AAT
15 GSK Investigational Site Neuquen Neuquén Argentina Q8300HDH
16 GSK Investigational Site Rosario Santa Fe Argentina S2000KZE
17 GSK Investigational Site Tucuman Tucumán. Argentina 4000
18 GSK Investigational Site Quilmes Argentina 1878
19 GSK Investigational Site Santa Fe Argentina 3000
20 GSK Investigational Site Brussel Belgium 1000
21 GSK Investigational Site Bruxelles Belgium 1200
22 GSK Investigational Site Gent Belgium 9000
23 GSK Investigational Site Leuven Belgium 3000
24 GSK Investigational Site Roeselare Belgium 8800
25 GSK Investigational Site Calgary Alberta Canada T2N 4N2
26 GSK Investigational Site Vancouver British Columbia Canada V5Z 4E6
27 GSK Investigational Site Hamilton Ontario Canada L8V 5C2
28 GSK Investigational Site Toronto Ontario Canada M5G 2M9
29 GSK Investigational Site Montréal Quebec Canada H2L 4M1
30 GSK Investigational Site Tallinn Estonia 11619
31 GSK Investigational Site Tartu Estonia 51003
32 GSK Investigational Site Bordeaux France 33076
33 GSK Investigational Site Caen Cedex France 14076
34 GSK Investigational Site Lille Cedex France 59020
35 GSK Investigational Site Marseille Cedex 09 France 13273
36 GSK Investigational Site Strasbourg France 67085
37 GSK Investigational Site Villejuif France 94805
38 GSK Investigational Site Muenchen Bayern Germany 80337
39 GSK Investigational Site Saarbruecken Saarland Germany 66113
40 GSK Investigational Site Halle Sachsen-Anhalt Germany 06120
41 GSK Investigational Site Magdeburg Sachsen-Anhalt Germany 39108
42 GSK Investigational Site Berlin Germany 10117
43 GSK Investigational Site Berlin Germany 10367
44 GSK Investigational Site Ahemdabad India 380016
45 GSK Investigational Site Mangalore India 575001
46 GSK Investigational Site New Delhi India 110096
47 GSK Investigational Site Trivandrum India 695011
48 GSK Investigational Site Cork Ireland
49 GSK Investigational Site Dublin Ireland 7
50 GSK Investigational Site Napoli Campania Italy 80131
51 GSK Investigational Site Milano Lombardia Italy 20141
52 GSK Investigational Site Campobasso Molise Italy 86100
53 GSK Investigational Site Bari Puglia Italy 70124
54 GSK Investigational Site Mexico City Mexico CP 14080
55 GSK Investigational Site Barcelona Spain 08036
56 GSK Investigational Site Barcelona Spain 08907
57 GSK Investigational Site La Laguna (Santa Cruz de Tenerife) Spain 38320
58 GSK Investigational Site Madrid Spain 28007
59 GSK Investigational Site Marid Spain 28040
60 GSK Investigational Site Pamplona Spain 31008
61 GSK Investigational Site Bangkok Thailand 10330
62 GSK Investigational Site Chiang Mai Thailand 50200
63 GSK Investigational Site Khon Kaen Thailand 40002

Sponsors and Collaborators

  • GlaxoSmithKline

Investigators

  • Study Director: GSK Clinical Trials, GlaxoSmithKline

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
GlaxoSmithKline
ClinicalTrials.gov Identifier:
NCT00430781
Other Study ID Numbers:
  • VEG105281
First Posted:
Feb 2, 2007
Last Update Posted:
May 8, 2015
Last Verified:
Apr 1, 2015

Study Results

Participant Flow

Recruitment Details Participants (par.) continued to be enrolled into all three treatment arms after clinical data cutoff for the interim analysis, but before the results were evaluated. Final total enrollment was 228 participants: 76 in the combination arm, 78 in the lapatinib monotherapy arm, and 74 in the pazopanib monotherapy arm.
Pre-assignment Detail Study was initially designed and started as a randomized, three-arm, controlled trial. Participants were randomized to the combination of pazopanib plus lapatinib, pazopanib monotherapy, or lapatinib monotherapy. Based on results from a planned interim analysis, the combination group was terminated, but the monotherapy groups continued as planned.
Arm/Group Title Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description Lapatinib 1500 mg (6 x 250 mg tablets) and pazopanib 800 mg (2 x 400 mg tablets) daily 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
Period Title: Interim Analysis; 11 February 2008
STARTED 59 58 60
Ongoing 23 20 25
COMPLETED 0 0 0
NOT COMPLETED 59 58 60
Period Title: Interim Analysis; 11 February 2008
STARTED 0 78 74
Ongoing 0 29 32
COMPLETED 0 39 26
NOT COMPLETED 0 39 48
Period Title: Interim Analysis; 11 February 2008
STARTED 77 77 74
COMPLETED 53 59 54
NOT COMPLETED 24 18 20

Baseline Characteristics

Arm/Group Title Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg Lapatinib Monotherapy Pazopanib Monotherapy Total
Arm/Group Description Lapatinib 1500 mg (6 x 250 mg tablets) and pazopanib 800 mg (2 x 400 mg tablets) daily 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily Total of all reporting groups
Overall Participants 59 58 60 177
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
50.4
(11.04)
48.7
(11.47)
49.6
(10.34)
49.5
(10.91)
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
NA
(NA)
49.2
(11.27)
50.8
(10.93)
50
(11.1)
Sex: Female, Male (Count of Participants)
Female
59
100%
58
100%
60
100%
177
100%
Male
0
0%
0
0%
0
0%
0
0%
Gender (participants) [Number]
Female
NA
NaN
78
134.5%
74
123.3%
152
85.9%
Male
NA
NaN
0
0%
0
0%
0
0%
Race/Ethnicity, Customized (participants) [Number]
African American
0
0%
1
1.7%
0
0%
1
0.6%
American Indian
10
16.9%
4
6.9%
12
20%
26
14.7%
Asian-South East
12
20.3%
10
17.2%
8
13.3%
30
16.9%
White
37
62.7%
43
74.1%
40
66.7%
120
67.8%
Race/Ethnicity, Customized (participants) [Number]
African American
NA
NaN
1
1.7%
0
0%
1
0.6%
American Indian
NA
NaN
10
17.2%
13
21.7%
23
13%
Asian-Central , South
NA
NaN
2
3.4%
0
0%
2
1.1%
Asian-South East
NA
NaN
13
22.4%
9
15%
22
12.4%
White
NA
NaN
52
89.7%
52
86.7%
104
58.8%
Histology at diagnosis: Interim Analysis (participants) [Number]
Adenocarcinoma
15
25.4%
8
13.8%
8
13.3%
31
17.5%
Adenosquamous carcinoma
0
0%
4
6.9%
3
5%
7
4%
Squamous cell carcinoma
32
54.2%
38
65.5%
43
71.7%
113
63.8%
Other
10
16.9%
8
13.8%
5
8.3%
23
13%
Missing
2
3.4%
0
0%
1
1.7%
3
1.7%
Histology at diagnosis: Final Anaysis (participants) [Number]
Adenocarcinoma
NA
NaN
11
19%
12
20%
23
13%
Adenosquamous carcinoma
NA
NaN
4
6.9%
3
5%
7
4%
Squamous cell carcinoma
NA
NaN
55
94.8%
53
88.3%
108
61%
Other
NA
NaN
8
13.8%
6
10%
14
7.9%

Outcome Measures

1. Primary Outcome
Title Progression-free Survival (PFS) in Interim Analysis
Description PFS is defined as the interval between the date of randomization and the date of disease progression or death due to any cause. The study was designed to test Combination vs. Lapatinib first. The result indicated that Combination would not show improvement over Lapatinib even if followed until the final analysis and the Combination arm was terminated. The monotherapy arms continued to the final analysis. Data shown here are from this interim analysis.
Time Frame From randomization until at least 35 PFS events in pairwise comparison of the three treatment arms (Interim Analysis; up to 52.14 weeks)

Outcome Measure Data

Analysis Population Description
Intent to Treat (ITT) Population: all randomized participants
Arm/Group Title Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description Lapatinib 1500 mg (6 x 250 mg tablets) and pazopanib 800 mg (2 x 400 mg tablets) daily 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
Measure Participants 59 58 60
Median (90% Confidence Interval) [Weeks]
12.6
12.6
17.9
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg, Lapatinib Monotherapy
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.535
Comments Stratified log-rank test with one-sided p-value. p<=0.0037 required for significance, and p>0.4956 indicated futility.
Method Log Rank
Comments
Method of Estimation Estimation Parameter Hazard Ratio (HR)
Estimated Value 1.05
Confidence Interval () 90%
0.65 to 1.7
Parameter Dispersion Type:
Value:
Estimation Comments The estimated value is the hazard ratio comparing combination to lapatinib monotherapy
2. Secondary Outcome
Title Overall Survival
Description Overall survival is defined as the time from randomization until death due to any cause.
Time Frame From Randomization (11 December 2006) until approximately 78% overall survival events at the time of the second overall survival update (3 March 2010) (up to 168.29 weeks)

Outcome Measure Data

Analysis Population Description
ITT Population
Arm/Group Title Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
Measure Participants 78 74
Median (90% Confidence Interval) [Weeks]
44.1
49.7
3. Secondary Outcome
Title Clinical Benefit Response
Description Clinical benefit response is defined as the number of participants with evidence of complete (CR) or partial (PR) tumor response or stable disease (SD) for at least 6 months (183 days). Per Response Evaluation Criteria In Solid Tumors (RECIST): CR, all detectable tumor has disappeared; PR, a >=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum; Stable Disease, small changes that do not meet previously given criteria. Confirmation requires at least 2 assessments of CR/PR with at least 4 weeks between assessments.
Time Frame From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)

Outcome Measure Data

Analysis Population Description
ITT Population
Arm/Group Title Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
Measure Participants 78 74
Number [participants]
7
11.9%
15
25.9%
4. Secondary Outcome
Title Response
Description Response is defined as the number of participants achieving either a complete or partial tumor response per RECIST criteria. CR, all detectable tumor has disappeared; PR, a >=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum.
Time Frame From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)

Outcome Measure Data

Analysis Population Description
ITT Population
Arm/Group Title Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
Measure Participants 78 74
Number [participants]
4
6.8%
7
12.1%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg, Lapatinib Monotherapy
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.237
Comments One-sided p-value.
Method Fisher Exact
Comments
5. Secondary Outcome
Title Time to Response
Description For the subset of participants who showed a confirmed CR or PR, time to response was defined as the time from randomization until the first documented evidence of CR or PR (whichever status was recorded first). CR, all detectable tumor has disappeared; PR, a >=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum.
Time Frame From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)

Outcome Measure Data

Analysis Population Description
ITT Population
Arm/Group Title Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
Measure Participants 4 7
Mean (90% Confidence Interval) [weeks]
18.2
6.9
6. Secondary Outcome
Title Duration of Response
Description For participants who had a CR or PR, the duration of response was defined as the time from first documented evidence of PR or CR until the first documented sign of disease progression or death. CR, all detectable tumor has disappeared; PR, a >=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum.
Time Frame From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)

Outcome Measure Data

Analysis Population Description
ITT Population. The median for lapatinib was not reached at the time of data cut-off. No formal analysis of this endpoint was conducted for this group due to a very small number of responding participants.
Arm/Group Title Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
Measure Participants 0 7
Mean (90% Confidence Interval) [weeks]
48.1
7. Secondary Outcome
Title Safety and Tolerability of Pazopanib, Lapatinib and the Combination of Pazopanib and Lapatinib
Description Safety was assessed as the number of participants experiencing a serious adverse event (SAE) or an adverse event (AE). See the adverse event module for safety data.
Time Frame From Randomization (11 December 2006) until last participant had last visit (28 July 2011) in combined population of two monotherapy arms (up to 241.43 weeks)

Outcome Measure Data

Analysis Population Description
Safety Population: all participants who received at least one dose of study drug
Arm/Group Title Lapatinib Monotherapy Pazopanib Monotherapy Combination Therapy: Lapatinib 1500 mg and Pazopanib 800
Arm/Group Description 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily Lapatinib 1500 mg (6 x 250 mg tablets) and pazopanib 800 mg (2 x 400 mg tablets) daily
Measure Participants 76 74 76
Serious adverse events
22
37.3%
28
48.3%
32
53.3%
Other adverse events with >5% occurrence
66
111.9%
69
119%
71
118.3%
8. Primary Outcome
Title Progression-free Survival (PFS) in Final Analysis
Description PFS is defined as the interval between the date of randomization and the date of disease progression or death due to any cause. This study began as a 3-arm study. The combination arm was terminated at the interim analysis. The monotherapy arms continued to final analysis. Data shown here are from the final analysis.
Time Frame From Randomization until 105 total PFS events in combined population of two monotherapy arms (up to 85.57 weeks)

Outcome Measure Data

Analysis Population Description
ITT Population
Arm/Group Title Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
Measure Participants 78 74
Median (90% Confidence Interval) [Weeks]
17.1
18.1
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg, Lapatinib Monotherapy
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.013
Comments Stratified log-rank test with one-sided p-value.
Method Log Rank
Comments
Method of Estimation Estimation Parameter Hazard Ratio, log
Estimated Value 0.66
Confidence Interval () 90%
0.48 to 0.91
Parameter Dispersion Type:
Value:
Estimation Comments

Adverse Events

Time Frame SAEs/AEs were assessed in par. receiving >=1 dose of study treatment at time of final PFS analysis (From Randomization [11 December 2006] until last par. had last visit [28 July 2011] in combined population of two monotherapy arms [up to 241.43 weeks])
Adverse Event Reporting Description Serious adverse events (SAEs) and adverse events (AEs) are reported for the Safety Population (all participants who received at least one dose of study drug).
Arm/Group Title Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg Lapatinib Monotherapy Pazopanib Monotherapy
Arm/Group Description Lapatinib 1500 mg (6 x 250 mg tablets) and pazopanib 800 mg (2 x 400 mg tablets) daily 1500 mg (6 x 250 mg tablets) of oral lapatinib daily 800 mg (2 x 400 mg tablets) of oral pazopanib daily
All Cause Mortality
Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg Lapatinib Monotherapy Pazopanib Monotherapy
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN) / (NaN)
Serious Adverse Events
Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg Lapatinib Monotherapy Pazopanib Monotherapy
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 32/76 (42.1%) 22/76 (28.9%) 28/74 (37.8%)
Blood and lymphatic system disorders
Anaemia 4/76 (5.3%) 1/76 (1.3%) 2/74 (2.7%)
Febrile neutropenia 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Cardiac disorders
Cardiac arrest 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Tachycardia 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Myocardial infarction 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Gastrointestinal disorders
Diarrhoea 1/76 (1.3%) 4/76 (5.3%) 4/74 (5.4%)
Abdominal pain 3/76 (3.9%) 1/76 (1.3%) 4/74 (5.4%)
Intestinal obstruction 1/76 (1.3%) 2/76 (2.6%) 0/74 (0%)
Intestinal perforation 2/76 (2.6%) 0/76 (0%) 0/74 (0%)
Upper gastrointestinal haemorrhage 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Rectal haemorrhage 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Small intestinal obstruction 0/76 (0%) 0/76 (0%) 2/74 (2.7%)
Ascites 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Colitis 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Enteritis 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Enterovesical fistula 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Large intestine perforation 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Rectal ulcer 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Subileus 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Vomiting 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
General disorders
Pyrexia 0/76 (0%) 2/76 (2.6%) 0/74 (0%)
Chest pain 1/76 (1.3%) 1/76 (1.3%) 0/74 (0%)
Fatigue 1/76 (1.3%) 1/76 (1.3%) 0/74 (0%)
General physical health deterioration 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Pain 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Asthenia 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Performance status decreased 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Sudden death 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Hepatobiliary disorders
Jaundice 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Infections and infestations
Urinary tract infection 0/76 (0%) 1/76 (1.3%) 1/74 (1.4%)
Gastroenteritis 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Pneumonia primary atypical 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Pyelonephritis 1/76 (1.3%) 0/76 (0%) 1/74 (1.4%)
Pyonephrosis 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Cellulitis 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Gangrene 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Pneumonia 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Septic Shock 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Injury, poisoning and procedural complications
Toxicity to various agents 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Wound 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Investigations
Ejection fraction decreased 2/76 (2.6%) 0/76 (0%) 0/74 (0%)
Forced expiratory volume decreased 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Metabolism and nutrition disorders
Decreased appetite 0/76 (0%) 1/76 (1.3%) 1/74 (1.4%)
Dehydration 2/76 (2.6%) 0/76 (0%) 1/74 (1.4%)
Failure to thrive 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Hypercalcaemia 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Hyperkalaemia 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Hypoglycaemia 1/76 (1.3%) 1/76 (1.3%) 0/74 (0%)
Hypokalaemia 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Hyponatraemia 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Musculoskeletal and connective tissue disorders
Bone pain 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Groin pain 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Intervertebral disc protrusion 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Muscular weakness 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Pain in extremity 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Osteonecrosis 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Cardiac neoplasm unspecified 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Tumour haemorrhage 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Tumour pain 1/76 (1.3%) 1/76 (1.3%) 0/74 (0%)
Nervous system disorders
Convulsion 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Dizziness 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Spinal cord compression 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Peripheral sensory neuropathy 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Psychiatric disorders
Confusional state 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Insomnia 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Renal and urinary disorders
Proteinuria 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Renal failure 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Haematuria 2/76 (2.6%) 0/76 (0%) 0/74 (0%)
Renal failure acute 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Ureteric stenosis 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Urethral fistula 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Urinary bladder haemorrhage 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Urinary retention 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Reproductive system and breast disorders
Female genital tract fistula 4/76 (5.3%) 0/76 (0%) 2/74 (2.7%)
Pelvic pain 0/76 (0%) 1/76 (1.3%) 1/74 (1.4%)
Vaginal haemorrhage 2/76 (2.6%) 0/76 (0%) 1/74 (1.4%)
Cervix disorder 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Genital hemorrhage 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Respiratory, thoracic and mediastinal disorders
Cough 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Dyspnoea 1/76 (1.3%) 4/76 (5.3%) 0/74 (0%)
Pulmonary embolism 0/76 (0%) 1/76 (1.3%) 2/74 (2.7%)
Bronchial obstruction 0/76 (0%) 1/76 (1.3%) 0/74 (0%)
Epistaxis 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Pulmonary haemorrhage 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Respiratory distress 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Respiratory Failure 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Tachypnoea 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Vascular disorders
Deep vein thrombosis 0/76 (0%) 0/76 (0%) 2/74 (2.7%)
Hypertension 1/76 (1.3%) 0/76 (0%) 2/74 (2.7%)
Venous thrombosis 0/76 (0%) 0/76 (0%) 1/74 (1.4%)
Arterial thrombosis limb 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Hypotension 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Iliac artery occlusion 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Shock haemorrhagic 1/76 (1.3%) 0/76 (0%) 0/74 (0%)
Other (Not Including Serious) Adverse Events
Combination Therapy: Lapatinib 1500 mg and Pazopanib 800 mg Lapatinib Monotherapy Pazopanib Monotherapy
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 71/76 (93.4%) 66/76 (86.8%) 69/74 (93.2%)
Blood and lymphatic system disorders
Anaemia 12/76 (15.8%) 12/76 (15.8%) 8/74 (10.8%)
Neutropenia 3/76 (3.9%) 1/76 (1.3%) 9/74 (12.2%)
Leukopenia 6/76 (7.9%) 0/76 (0%) 5/74 (6.8%)
Lymphopenia 0/76 (0%) 3/76 (3.9%) 4/74 (5.4%)
Gastrointestinal disorders
Diarrhoea 58/76 (76.3%) 42/76 (55.3%) 40/74 (54.1%)
Nausea 28/76 (36.8%) 25/76 (32.9%) 28/74 (37.8%)
Vomiting 32/76 (42.1%) 18/76 (23.7%) 15/74 (20.3%)
Abdominal pain 15/76 (19.7%) 9/76 (11.8%) 14/74 (18.9%)
Constipation 8/76 (10.5%) 8/76 (10.5%) 17/74 (23%)
Abdominal pain upper 5/76 (6.6%) 7/76 (9.2%) 13/74 (17.6%)
Rectal haemorrhage 7/76 (9.2%) 3/76 (3.9%) 2/74 (2.7%)
Dyspepsia 4/76 (5.3%) 3/76 (3.9%) 2/74 (2.7%)
Stomatitis 4/76 (5.3%) 5/76 (6.6%) 2/74 (2.7%)
Dry mouth 3/76 (3.9%) 4/76 (5.3%) 2/74 (2.7%)
Flatulence 1/76 (1.3%) 4/76 (5.3%) 0/74 (0%)
General disorders
Asthenia 19/76 (25%) 17/76 (22.4%) 13/74 (17.6%)
Fatigue 14/76 (18.4%) 15/76 (19.7%) 10/74 (13.5%)
Oedema peripheral 5/76 (6.6%) 8/76 (10.5%) 6/74 (8.1%)
Pain 3/76 (3.9%) 1/76 (1.3%) 5/74 (6.8%)
Pyrexia 5/76 (6.6%) 6/76 (7.9%) 3/74 (4.1%)
Hepatobiliary disorders
Hyperbilirubinaemia 5/76 (6.6%) 1/76 (1.3%) 4/74 (5.4%)
Infections and infestations
Urinary tract infection 9/76 (11.8%) 10/76 (13.2%) 6/74 (8.1%)
Pharyngitis 0/76 (0%) 0/76 (0%) 4/74 (5.4%)
Investigations
Blood alkaline phosphatase increased 7/76 (9.2%) 5/76 (6.6%) 14/74 (18.9%)
Aspartate aminotransferase increased 9/76 (11.8%) 2/76 (2.6%) 11/74 (14.9%)
Alanine aminotransferase increased 5/76 (6.6%) 1/76 (1.3%) 11/74 (14.9%)
Blood lactate dehydrogenase increased 5/76 (6.6%) 1/76 (1.3%) 8/74 (10.8%)
Weight decreased 6/76 (7.9%) 4/76 (5.3%) 3/74 (4.1%)
Haemoglobin decreased 2/76 (2.6%) 1/76 (1.3%) 4/74 (5.4%)
Metabolism and nutrition disorders
Decreased appetite 29/76 (38.2%) 25/76 (32.9%) 20/74 (27%)
Musculoskeletal and connective tissue disorders
Back pain 8/76 (10.5%) 11/76 (14.5%) 9/74 (12.2%)
Pain in extremity 4/76 (5.3%) 7/76 (9.2%) 8/74 (10.8%)
Myalgia 5/76 (6.6%) 6/76 (7.9%) 5/74 (6.8%)
Arthralgia 5/76 (6.6%) 3/76 (3.9%) 4/74 (5.4%)
Nervous system disorders
Headache 10/76 (13.2%) 7/76 (9.2%) 20/74 (27%)
Dizziness 3/76 (3.9%) 5/76 (6.6%) 5/74 (6.8%)
Dysgeusia 11/76 (14.5%) 3/76 (3.9%) 5/74 (6.8%)
Somnolence 0/76 (0%) 4/76 (5.3%) 3/74 (4.1%)
Psychiatric disorders
Insomnia 3/76 (3.9%) 5/76 (6.6%) 5/74 (6.8%)
Renal and urinary disorders
Proteinuria 9/76 (11.8%) 11/76 (14.5%) 6/74 (8.1%)
Dysuria 5/76 (6.6%) 4/76 (5.3%) 3/74 (4.1%)
Haematuria 3/76 (3.9%) 5/76 (6.6%) 3/74 (4.1%)
Urinary incontinence 0/76 (0%) 5/76 (6.6%) 2/74 (2.7%)
Reproductive system and breast disorders
Pelvic pain 4/76 (5.3%) 5/76 (6.6%) 5/74 (6.8%)
Vaginal haemorrhage 8/76 (10.5%) 2/76 (2.6%) 5/74 (6.8%)
Respiratory, thoracic and mediastinal disorders
Cough 4/76 (5.3%) 7/76 (9.2%) 7/74 (9.5%)
Dyspnoea 9/76 (11.8%) 8/76 (10.5%) 3/74 (4.1%)
Epistaxis 6/76 (7.9%) 1/76 (1.3%) 2/74 (2.7%)
Skin and subcutaneous tissue disorders
Rash 12/76 (15.8%) 22/76 (28.9%) 4/74 (5.4%)
Hair colour changes 8/76 (10.5%) 0/76 (0%) 11/74 (14.9%)
Dry skin 3/76 (3.9%) 5/76 (6.6%) 5/74 (6.8%)
Alopecia 7/76 (9.2%) 1/76 (1.3%) 6/74 (8.1%)
Erythema 0/76 (0%) 3/76 (3.9%) 5/74 (6.8%)
Acne 6/76 (7.9%) 4/76 (5.3%) 0/74 (0%)
Skin hypopigmentation 4/76 (5.3%) 0/76 (0%) 2/74 (2.7%)
Pruritus 1/76 (1.3%) 8/76 (10.5%) 2/74 (2.7%)
Dermatitis acneiform 3/76 (3.9%) 5/76 (6.6%) 1/74 (1.4%)
Vascular disorders
Hypertension 24/76 (31.6%) 2/76 (2.6%) 23/74 (31.1%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

GSK agreements may vary with individual investigators, but will not prohibit any investigator from publishing. GSK supports the publication of results from all centers of a multi-center trial but requests that reports based on single-site data not precede the primary publication of the entire clinical trial.

Results Point of Contact

Name/Title GSK Response Center
Organization GlaxoSmithKline
Phone 866-435-7343
Email
Responsible Party:
GlaxoSmithKline
ClinicalTrials.gov Identifier:
NCT00430781
Other Study ID Numbers:
  • VEG105281
First Posted:
Feb 2, 2007
Last Update Posted:
May 8, 2015
Last Verified:
Apr 1, 2015