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PF-00477736 Is Being Studied In Advanced Solid Tumors In Combination With Chemotherapy With Gemcitabine

Phase I Study of PF-00477736 With Gemcitabine In Patients With Advanced Solid Malignancies

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00437203
Enrollment
43
Registered
2007-02-19
Start date
2006-12-31
Completion date
2011-04-30
Last updated
2012-04-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neoplasms

Keywords

Advanced cancer

Brief summary

To determine the overall safety of PF-00477736 when given in combination with gemcitabine, a chemotherapy agent, in patients with advanced solid tumors and determine the maximum dose of PF-00477736 that can be safely given in combination with gemcitabine. This is the first study of PF-00477736 in humans.

Detailed description

The study was closed to enrollment as of 17 May 2010 due to business reasons. The patient on study continued treatment until 19 April 2011 when stopped for complete response. Premature closure was not prompted by any safety or efficacy concerns.

Interventions

DRUGPF-00477736

* Escalating doses of PF-00477736 will be administered intravenously on Days 2 and 9 and gemcitabine will be administered intravenously on Days 1 and 8 of a 21-day cycle (doses to be evaluated range from 750 to 1250 mg/m2 in three separated cohorts). * If a patient is administered Cycle 0 - only PF-0047736 will be administered intravenously on Days 1 and 8 of a 21-day cycle for patients who have a 3-hour infusion and Days 1 and 8 of a 14-day cycle for patients who have a 24-hour infusion.

DRUGgemcitabine

gemcitabine will be administered intravenously on Days 1 and 8 of a 21-day cycle (doses to be evaluated range from 750 to 1250 mg/m2 in three separated cohorts).

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histological or cytopathological diagnosis of solid malignancy that is refractory to standard therapy or for which no curative therapy exists. * ECOG performance status 0 or 1. * Adequate blood cell counts, kidney function and liver function.

Exclusion criteria

* Prior treatment with gemcitabine. * Uncontrolled brain metastases, spinal cord compression, carcinomatous meningitis, or leptomeningeal disease. * NCI CTC Grade 2 or higher ARDS, non-infectious pneumonitis, or pulmonary fibrosis. * NCI CTC Grade 2 or higher cardiovascular toxicities with the exception of NCI CTC Grade 3 hypertension that is well controlled. * Known human immunodeficiency virus (HIV) seropositivity. * Concurrent treatment with anticoagulants or known coagulopathy

Design outcomes

Primary

MeasureTime frame
Maximum Tolerated Dose (MTD) of PF-00477736 When Administered in Combination With GemcitabineUp to Day 21 Cycle 1

Secondary

MeasureTime frameDescription
Maximum Observed Plasma Concentration (Cmax)0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10
Minimum Observed Plasma Trough Concentration (Cmin)0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10
Time to Reach Maximum Observed Plasma Concentration (Tmax)0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)]0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start: Day 1, 8 Cycle 0AUC (0-24) = Area under the plasma concentration versus time curve from time zero (pre-dose) to time of last quantifiable concentration (0-24).
Number of Participants With Objective Response (OR)Baseline, Day 15 of Cycle 2 and 4 and every 4 cycles thereafter up to Week 62OR based assessment of confirmed complete response(CR)/confirmed partial response(PR)/stable disease(SD)/progressive disease(PD) as per Response Evaluation Criteria in Solid Tumors(RECIST).CR:disappearance of target lesions;PR:at least(\>=) 30% decrease in sum of longest dimensions of target lesions(reference:baseline sum of longest dimensions);PD:\>=20% increase in sum of longest dimensions of target lesions(reference:smallest sum of longest dimensions recorded since treatment started)/appearance of any new lesions;SD:no adequate shrinkage to qualify for PR/adequate increase to qualify for PD.
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast).
Concentration of PF-00477736 in Urine0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10
Plasma Decay Half-Life (t1/2)0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.
Metabolite Profile of PF-00477736 in Plasma and Urine0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-48)]0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10AUC (0-48)= Area under the plasma concentration versus time curve from time zero (pre-dose) to time of last quantifiable concentration (0-48).

Countries

Australia, United States

Participant flow

Participants by arm

ArmCount
PF-00477736 50 mg 3 Hrs + Gemcitabine 750 mg/m^2 (Cohort 1)
PF-00477736 50 mg 3 hrs infusion IV on Days 1 and 8 of cycle 0 and subsequently on Days 2 and 9 of each cycle (21 days cycle) for first 3 participants and on Days 2 and 9 of each cycle (21 days cycle), starting with cycle 1, for participants subsequently enrolled in this cohort. Gemcitabine 750 mg mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle), starting with cycle 1.
6
PF-00477736 65 mg 3 Hrs + Gemcitabine 750 mg/m^2 (Cohort 2)
PF-00477736 65 mg 3 hrs infusion IV on Days 1 and 8 of cycle 0 and subsequently on Days 2 and 9 of each cycle (21 days cycle) for first 3 participants and on Days 2 and 9 of each cycle (21 days cycle), starting with cycle 1, for participants subsequently enrolled in this cohort. Gemcitabine 750 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle), starting with cycle 1.
8
PF-00477736 80 mg 3 Hrs + Gemcitabine 750 mg/m^2 (Cohort 3)
PF-00477736 80 mg 3 hrs infusion IV on Days 1 and 8 of cycle 0 and subsequently on Days 2 and 9 of each cycle (21 days cycle). Gemcitabine 750 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle), starting with cycle 1.
3
PF-00477736 80 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 4)
PF-00477736 80 mg 24 hrs infusion IV on Days 1 and 8 of cycle 0 (14 days cycle) and subsequently on Days 2 and 9 of each cycle (21 days cycle). Gemcitabine 750 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle), starting with cycle 1.
3
PF-00477736 120 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 5)
PF-00477736 120 mg 24 hrs infusion IV on Days 1 and 8 of cycle 0 (14 days cycle) and subsequently on Days 2 and 9 of each cycle (21 days cycle). Gemcitabine 750 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle), starting with cycle 1.
3
PF-00477736 180 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 6)
PF-00477736 180 mg 24 hrs infusion IV on Days 1 and 8 of cycle 0 (14 days cycle) and subsequently on Days 2 and 9 of each cycle (21 days cycle). Gemcitabine 750 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle), starting with cycle 1.
3
PF-00477736 270 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 7)
PF-00477736 270 mg 24 hrs infusion IV on Days 1 and 8 of cycle 0 (14 days cycle) and subsequently on Days 2 and 9 of each cycle (21 days cycle) for first 3 participants and on Days 2 and 9 of each cycle (21 days cycle), starting with cycle 1, for participants subsequently enrolled in this cohort. Gemcitabine 750 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle), starting with cycle 1.
7
PF-00477736 340 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 8)
PF-00477736 340 mg 24 hrs infusion IV on Days 1 and 8 of cycle 0 (14 days cycle) and subsequently on Days 2 and 9 of each cycle (21 days cycle). Gemcitabine 750 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle), starting with cycle 1.
3
PF-00477736 180 mg 24 Hrs + Gemcitabine 1000 mg/m^2 (Cohort 9)
PF-00477736 infusion 180 mg 24 hrs infusion IV on Days 2 and 9 of each cycle (21 days cycle). Gemcitabine infusion 1000 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle).
3
PF-00477736 225 mg 24 Hrs + Gemcitabine 1000 mg/m^2 (cohort10)
PF-00477736 infusion 225 mg 24 hrs infusion IV on Days 2 and 9 of each cycle (21 days cycle). Gemcitabine infusion 1000 mg/m\^2 30 minutes infusion IV on Days 1 and 8 of each cycle (21 days cycle).
4
Total43

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009
Overall StudyAdverse Event1100000101
Overall StudyDeath0010000101
Overall StudyObjective progression or relapse5623336122
Overall StudyOther0100001000
Overall StudyStudy terminated by sponsor0000000010

Baseline characteristics

CharacteristicPF-00477736 50 mg 3 Hrs + Gemcitabine 750 mg/m^2 (Cohort 1)PF-00477736 65 mg 3 Hrs + Gemcitabine 750 mg/m^2 (Cohort 2)PF-00477736 80 mg 3 Hrs + Gemcitabine 750 mg/m^2 (Cohort 3)PF-00477736 80 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 4)PF-00477736 120 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 5)PF-00477736 180 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 6)PF-00477736 270 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 7)PF-00477736 340 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 8)PF-00477736 180 mg 24 Hrs + Gemcitabine 1000 mg/m^2 (Cohort 9)PF-00477736 225 mg 24 Hrs + Gemcitabine 1000 mg/m^2 (cohort10)Total
Age Continuous55.2 years
STANDARD_DEVIATION 18.3
62.3 years
STANDARD_DEVIATION 6.8
55.0 years
STANDARD_DEVIATION 5.2
45.0 years
STANDARD_DEVIATION 3.6
55.0 years
STANDARD_DEVIATION 11.5
44.3 years
STANDARD_DEVIATION 12.1
54.0 years
STANDARD_DEVIATION 8.9
55.7 years
STANDARD_DEVIATION 4.6
46.0 years
STANDARD_DEVIATION 6.9
49.5 years
STANDARD_DEVIATION 7.1
53.7 years
STANDARD_DEVIATION 10.7
Sex: Female, Male
Female
2 Participants2 Participants3 Participants2 Participants1 Participants1 Participants6 Participants2 Participants2 Participants2 Participants23 Participants
Sex: Female, Male
Male
4 Participants6 Participants0 Participants1 Participants2 Participants2 Participants1 Participants1 Participants1 Participants2 Participants20 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
6 / 68 / 83 / 33 / 33 / 33 / 37 / 72 / 33 / 33 / 4
serious
Total, serious adverse events
1 / 63 / 82 / 31 / 30 / 32 / 34 / 72 / 30 / 33 / 4

Outcome results

Primary

Maximum Tolerated Dose (MTD) of PF-00477736 When Administered in Combination With Gemcitabine

Time frame: Up to Day 21 Cycle 1

Population: Full analysis set (FAS) included all enrolled participants who received at least 1 dose of study medication.

ArmMeasureValue (NUMBER)
PF-00477736 + Gemcitabine 750 mg/m^2Maximum Tolerated Dose (MTD) of PF-00477736 When Administered in Combination With Gemcitabine270 mg
PF-00477736 + Gemcitabine 1000 mg/m^2Maximum Tolerated Dose (MTD) of PF-00477736 When Administered in Combination With GemcitabineNA mg
Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-24)]

AUC (0-24) = Area under the plasma concentration versus time curve from time zero (pre-dose) to time of last quantifiable concentration (0-24).

Time frame: 0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start: Day 1, 8 Cycle 0

Population: Data was not analyzed, as study was terminated due to business reasons.

Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-48)]

AUC (0-48)= Area under the plasma concentration versus time curve from time zero (pre-dose) to time of last quantifiable concentration (0-48).

Time frame: 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10

Population: Data was not analyzed, as study was terminated due to business reasons.

Secondary

Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)

Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast).

Time frame: 0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10

Population: Data was not analyzed, as study was terminated due to business reasons.

Secondary

Concentration of PF-00477736 in Urine

Time frame: 0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10

Population: Data was not analyzed, as study was terminated due to business reasons.

Secondary

Maximum Observed Plasma Concentration (Cmax)

Time frame: 0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10

Population: Data was not analyzed, as study was terminated due to business reasons.

Secondary

Metabolite Profile of PF-00477736 in Plasma and Urine

Time frame: 0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10

Population: Data was not analyzed, as study was terminated due to business reasons.

Secondary

Minimum Observed Plasma Trough Concentration (Cmin)

Time frame: 0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10

Population: Data was not analyzed, as study was terminated due to business reasons.

Secondary

Number of Participants With Objective Response (OR)

OR based assessment of confirmed complete response(CR)/confirmed partial response(PR)/stable disease(SD)/progressive disease(PD) as per Response Evaluation Criteria in Solid Tumors(RECIST).CR:disappearance of target lesions;PR:at least(\>=) 30% decrease in sum of longest dimensions of target lesions(reference:baseline sum of longest dimensions);PD:\>=20% increase in sum of longest dimensions of target lesions(reference:smallest sum of longest dimensions recorded since treatment started)/appearance of any new lesions;SD:no adequate shrinkage to qualify for PR/adequate increase to qualify for PD.

Time frame: Baseline, Day 15 of Cycle 2 and 4 and every 4 cycles thereafter up to Week 62

Population: FAS included all enrolled participants who received at least 1 dose of study medication.

ArmMeasureValue (NUMBER)
PF-00477736 + Gemcitabine 750 mg/m^2Number of Participants With Objective Response (OR)1 participants
PF-00477736 + Gemcitabine 1000 mg/m^2Number of Participants With Objective Response (OR)0 participants
PF-00477736 80 mg 3 Hrs + Gemcitabine 750 mg/m^2 (Cohort 3)Number of Participants With Objective Response (OR)1 participants
PF-00477736 80 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 4)Number of Participants With Objective Response (OR)1 participants
PF-00477736 120 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 5)Number of Participants With Objective Response (OR)0 participants
PF-00477736 180 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 6)Number of Participants With Objective Response (OR)0 participants
PF-00477736 270 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 7)Number of Participants With Objective Response (OR)0 participants
PF-00477736 340 mg 24 Hrs + Gemcitabine 750 mg/m^2 (Cohort 8)Number of Participants With Objective Response (OR)0 participants
PF-00477736 180 mg 24 Hrs + Gemcitabine 1000 mg/m^2 (Cohort 9)Number of Participants With Objective Response (OR)1 participants
PF-00477736 225 mg 24 Hrs + Gemcitabine 1000 mg/m^2 (cohort10)Number of Participants With Objective Response (OR)0 participants
Secondary

Plasma Decay Half-Life (t1/2)

Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.

Time frame: 0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10

Population: Data was not analyzed, as study was terminated due to business reasons.

Secondary

Time to Reach Maximum Observed Plasma Concentration (Tmax)

Time frame: 0(pre-dose), 0.25, 1, 3, 3.25, 3.5, 4, 6, 8, 10, 24 hr post-infusion start:Day 1, 8 Cycle 0 Cohort 1-3; 0(pre-dose), 0.25, 1, 2, 24, 24.25, 24.5, 25, 27, 29, 31, 48 hr post-infusion start:Day 1-2, 8-9 Cycle 0 Cohort 4-8; Day 2-3, 9-10 Cycle 1 Cohort 9-10

Population: Data was not analyzed, as study was terminated due to business reasons.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026