18 and older, any sex, with Neoplasms. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Number of Participants With Dose-Limiting Toxicities (DLTs) - Part 1Primary· Baseline through Day 21 (Cycle 1)
DLT was defined as any of the following adverse events occurring in the first cycle of treatment (21 days after the first dose): a) Hematologic: Febrile neutropenia defined as an absolute neutrophil count (ANC) \<1.0 x 10\^9/L with a single temperature of \>38.3°C, or 101°F, or a sustained temperature of \>=38°C, or 100.4°F, for more than one hour; b) Non-hematologic: Delay by more than 2 weeks in receiving the next scheduled dose due to persisting treatment related toxicities; c) Any grade 3 or 4 clinically-relevant hematologic or non-hematologic toxicity.
Group
Value
95% CI
PF-06671008 1.5 ng/kg IV
0
PF-06671008 7.5 ng/kg IV
0
PF-06671008 20 ng/kg IV
0
PF-06671008 50 ng/kg IV
0
PF-06671008 100 ng/kg IV
0
PF-06671008 200 ng/kg IV
0
PF-06671008 300 ng/kg IV
0
PF-06671008 400 ng/kg IV
1
PF-06671008 200 ng/kg SC
0
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
0
Maximum Serum Concentration (Cmax) of PF-06671008Secondary· C1D1 0, 1, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose, C2D1 0, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose
Maximum serum concentration (Cmax) of PF-06671008 was observed directly from data.
Geometric mean was not calculated if fewer than 3 participants had reportable parameter values.
Cycle 1 Day 1
Group
Value
95% CI
PF-06671008 1.5 ng/kg IV
NA
± NA
PF-06671008 7.5 ng/kg IV
NA
± NA
PF-06671008 20 ng/kg IV
0.1926
± 20
PF-06671008 50 ng/kg IV
NA
± NA
PF-06671008 100 ng/kg IV
1.108
± 32
PF-06671008 200 ng/kg IV
2.008
± 33
PF-06671008 300 ng/kg IV
2.387
± 36
PF-06671008 400 ng/kg IV
4.049
± 14
PF-06671008 200 ng/kg SC
NA
± NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
± NA
Cycle 2 Day 1
Group
Value
95% CI
PF-06671008 1.5 ng/kg IV
NA
± NA
PF-06671008 7.5 ng/kg IV
NA
± NA
PF-06671008 20 ng/kg IV
0.2470
± 36
PF-06671008 50 ng/kg IV
NA
± NA
PF-06671008 100 ng/kg IV
0.8471
± 51
PF-06671008 200 ng/kg IV
2.014
± 7
PF-06671008 300 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg SC
NA
± NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
± NA
Time to Reach Maximum Observed Serum Concentration (Tmax) of PF-06671008Secondary· C1D1 0, 1, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose, C2D1 0, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose
Time for Maximum serum concentration (Tmax) of PF-06671008 was observed directly from data as time of first occurrence.
Cycle 1 Day 1
Group
Value
95% CI
PF-06671008 7.5 ng/kg IV
2.02
2.02 – 2.02
PF-06671008 20 ng/kg IV
4.05
2.00 – 4.08
PF-06671008 50 ng/kg IV
2.29
1.92 – 2.65
PF-06671008 100 ng/kg IV
2.07
2.00 – 4.10
PF-06671008 200 ng/kg IV
2.33
2.00 – 3.98
PF-06671008 300 ng/kg IV
2.17
2.05 – 3.63
PF-06671008 400 ng/kg IV
2.05
2.05 – 3.00
PF-06671008 200 ng/kg SC
50.5
8.12 – 92.9
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
1.92
1.92 – 1.92
Cycle 2 Day 1
Group
Value
95% CI
PF-06671008 7.5 ng/kg IV
2.12
2.12 – 2.12
PF-06671008 20 ng/kg IV
3.98
2.00 – 4.22
PF-06671008 50 ng/kg IV
3.90
3.90 – 3.90
PF-06671008 100 ng/kg IV
4.00
2.17 – 4.28
PF-06671008 200 ng/kg IV
2.09
1.92 – 2.17
PF-06671008 300 ng/kg IV
2.14
2.10 – 2.17
PF-06671008 200 ng/kg SC
24.6
23.4 – 25.7
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
Terminal elimination half-life (t1/2) of PF-06671008 was calculated as ln(2)/kel, where kel was the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve. Only those data points judged to describe the terminal log-linear decline were used in the regression.
Arithmetic mean was not calculated if fewer than 3 participants had reportable parameter values.
Cycle 1 Day 1
Group
Value
95% CI
PF-06671008 50 ng/kg IV
NA
± NA
PF-06671008 100 ng/kg IV
31.77
± 7.6055
PF-06671008 200 ng/kg IV
35.30
± 5.4065
PF-06671008 300 ng/kg IV
NA
± NA
PF-06671008 400 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
± NA
Cycle 2 Day 1
Group
Value
95% CI
PF-06671008 100 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg IV
NA
± NA
PF-06671008 300 ng/kg IV
NA
± NA
Area Under the Curve From Time Zero to End of Dosing Interval (AUCtau) of PF-06671008Secondary· C1D1 0, 1, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose, C2D1 0, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose
Tau refers to the dosing interval, which was 1 week. Area under the concentration-time profile from time 0 to time tau (AUCtau) was determined using linear/log trapezoidal method.
Geometric mean was not calculated if fewer than 3 participants had reportable parameter values.
Cycle 1 Day 1
Group
Value
95% CI
PF-06671008 1.5 ng/kg IV
NA
± NA
PF-06671008 7.5 ng/kg IV
NA
± NA
PF-06671008 20 ng/kg IV
5.252
± 25
PF-06671008 50 ng/kg IV
NA
± NA
PF-06671008 100 ng/kg IV
42.75
± 35
PF-06671008 200 ng/kg IV
87.31
± 29
PF-06671008 300 ng/kg IV
NA
± NA
PF-06671008 400 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg SC
NA
± NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
± NA
Cycle 2 Day 1
Group
Value
95% CI
PF-06671008 1.5 ng/kg IV
NA
± NA
PF-06671008 7.5 ng/kg IV
NA
± NA
PF-06671008 20 ng/kg IV
10.31
± 43
PF-06671008 50 ng/kg IV
NA
± NA
PF-06671008 100 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg IV
79.17
± 36
PF-06671008 300 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg SC
NA
± NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
± NA
Area Under the Curve From Time 0 Extrapolated to Infinity Time (AUCinf) of PF-06671008Secondary· C1D1 0, 1, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose, C2D1 0, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose
AUCinf was calculated as AUClast +(Clast\*/kel), where AUClast is area under the serum concentration-time profile from time 0 to the time of the last quantifiable concentration, Clast\* is the predicted serum concentration at the last quantifiable time point estimated from the log-linear regression analysis, kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve. Only those data points judged to describe the terminal log-linear decline were used in the regression.
Geometric mean was not calculated if fewer than 3 participants had r
Cycle 1 Day 1
Group
Value
95% CI
PF-06671008 50 ng/kg IV
NA
± NA
PF-06671008 100 ng/kg IV
47.09
± 41
PF-06671008 200 ng/kg IV
90.35
± 19
PF-06671008 300 ng/kg IV
NA
± NA
PF-06671008 400 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
± NA
Systemic Clearance (CL) of PF-06671008Secondary· C1D1 0, 1, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose, C2D1 0, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose
Systemic Clearance (CL) was calculated as dose/AUCinf, where AUCinf was area under the serum concentration-time profile from time 0 extrapolated to infinite time. This outcome measure only applies to IV arms.
Geometric mean was not calculated if fewer than 3 participants had reportable parameter values.
Cycle 1 Day 1
Group
Value
95% CI
PF-06671008 50 ng/kg IV
NA
± NA
PF-06671008 100 ng/kg IV
2.191
± 47
PF-06671008 200 ng/kg IV
2.236
± 20
PF-06671008 300 ng/kg IV
NA
± NA
PF-06671008 400 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
± NA
Cycle 2 Day 1
Group
Value
95% CI
PF-06671008 7.5 ng/kg IV
NA
± NA
PF-06671008 20 ng/kg IV
1.954
± 40
PF-06671008 50 ng/kg IV
NA
± NA
PF-06671008 100 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg IV
1.827
± 77
PF-06671008 300 ng/kg IV
NA
± NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
± NA
Apparent Clearance (CL/F) of PF-06671008Secondary· C1D1 0, 1, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose, C2D1 0, 2, 4, 8, 24, 48, 72 and 96 hrs post-dose
Apparent Clearance (CL/F) was calculated as dose/AUCinf, where AUCinf was area under the serum concentration-time profile from time 0 extrapolated to infinite time. This outcome measure only applies to SC arm.
Geometric mean was not calculated if fewer than 3 participants had reportable parameter values.
Cycle 2 Day 1
Group
Value
95% CI
PF-06671008 200 ng/kg SC
NA
± NA
Number of Participants With OR - Part 1Secondary· Baseline and every 6 weeks for the first 6 months, then every 12 weeks until disease progression, unacceptable toxicity, or up to 24 months
Number of participants with OR based on assessment of CR or PR according to RECIST v1.1.
CR was defined as complete disappearance of all target lesions and non-target disease, with the exception of nodal disease. All nodes, both target and non-target, must decrease to normal (short axis \<10 mm). No new lesions.
PR was defined as \>=30% decrease under baseline of the sum of diameters of all target lesions. The short axis was used in the sum for target nodes, while the longest diameter was used in the sum for all other target lesions. No unequivocal progression of non-target disease. No new l
Group
Value
95% CI
PF-06671008 1.5 ng/kg IV
0
PF-06671008 7.5 ng/kg IV
0
PF-06671008 20 ng/kg IV
0
PF-06671008 50 ng/kg IV
0
PF-06671008 100 ng/kg IV
0
PF-06671008 200 ng/kg IV
0
PF-06671008 300 ng/kg IV
0
PF-06671008 400 ng/kg IV
0
PF-06671008 200 ng/kg SC
0
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
0
Number of Participants With Anti Drug Antibodies (ADA) and Neutralizing Antibodies (NAb) Against PF-06671008Secondary· C1D1 0 hrs, D15 0 hrs, and C2D1 0 hrs, and D1 0 hrs post additional dosings, up to 24 months
ADA against PF-06671008 in human serum samples was determined following a tiered approach using screening, confirmation, and titer/quantification by semi-quantitative enzyme linked immunosorbent assay (ELISA). Endpoint titer \>=1.18 was considered positive.
ADA
Group
Value
95% CI
PF-06671008 1.5 ng/kg IV
0
PF-06671008 7.5 ng/kg IV
0
PF-06671008 20 ng/kg IV
0
PF-06671008 50 ng/kg IV
0
PF-06671008 100 ng/kg IV
0
PF-06671008 200 ng/kg IV
0
PF-06671008 300 ng/kg IV
0
PF-06671008 400 ng/kg IV
0
PF-06671008 200 ng/kg SC
1
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
0
NAb
Group
Value
95% CI
PF-06671008 1.5 ng/kg IV
NA
PF-06671008 7.5 ng/kg IV
NA
PF-06671008 20 ng/kg IV
NA
PF-06671008 50 ng/kg IV
NA
PF-06671008 100 ng/kg IV
NA
PF-06671008 200 ng/kg IV
NA
PF-06671008 300 ng/kg IV
NA
PF-06671008 400 ng/kg IV
NA
PF-06671008 200 ng/kg SC
NA
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
NA
Adverse events — posted to ClinicalTrials.gov
Time frame: For all Adverse Events: Start of treatment to and including 28 days after the last dose. For All-Cause Mortality: Start of treatment to and including 28 days after the last dose + follow-up period (up to 2 years).
Reporting threshold: 5%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
PF-06671008 1.5 ng/kg IV
Serious: 0/1 (0%)
Deaths: 1/1
PF-06671008 7.5 ng/kg IV
Serious: 1/2 (50%)
Deaths: 2/2
PF-06671008 20 ng/kg IV
Serious: 1/3 (33%)
Deaths: 1/3
PF-06671008 50 ng/kg IV
Serious: 2/2 (100%)
Deaths: 1/2
PF-06671008 100 ng/kg IV
Serious: 4/4 (100%)
Deaths: 4/4
PF-06671008 200 ng/kg IV
Serious: 4/5 (80%)
Deaths: 2/5
PF-06671008 300 ng/kg IV
Serious: 3/4 (75%)
Deaths: 1/4
PF-06671008 400 ng/kg IV
Serious: 2/3 (67%)
Deaths: 3/3
PF-06671008 200 ng/kg SC
Serious: 0/2 (0%)
Deaths: 1/2
PF-06671008 200 ng/kg Prime and 300 ng/kg Maintenance IV
Serious: 0/1 (0%)
Deaths: 0/1
Serious adverse events (6 terms)
Reaction
System
PF-06671008 1.5 ng/kg IV
PF-06671008 7.5 ng/kg IV
PF-06671008 20 ng/kg IV
PF-06671008 50 ng/kg IV
PF-06671008 100 ng/kg IV
PF-06671008 200 ng/kg IV
PF-06671008 300 ng/kg IV
PF-06671008 400 ng/kg IV
PF-06671008 200 ng/kg SC
PF-06671008 200 ng/kg Prim…
Cytokine release syndrome
Immune system disorders
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Anaemia
Blood and lymphatic system disorders
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Diarrhoea
Gastrointestinal disorders
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Neoplasm progression
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
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Rectal adenocarcinoma
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
The study will evaluate the safety, pharmacokinetics and pharmacodynamics of increasing doses of PF-06671008 in patients with advanced solid tumors with the potential to have P-cadherin expression. The study will then expand to look at the selected dose in patients with P-cadherin expressing TNBC, CRC or NSCLC.
Publications & conference data
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Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Pfizer
Last refreshed: 6 May 2020
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT02659631.