MedPath

Study of PF-07248144 in Advanced or Metastatic Solid Tumors

Phase 1
Recruiting
Conditions
Locally Advanced or Metastatic Non-small Cell Lung Cancer
Locally Advanced or Metastatic Castration-resistant Prostate Cancer
Locally Advanced or Metastatic ER+ HER2- Breast Cancer
Interventions
Registration Number
NCT04606446
Lead Sponsor
Pfizer
Brief Summary

This is an open-label, multi center study to evaluate safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of PF-07248144 and early signs of clinical efficacy of PF-07248144 as a single agent and in combination with either fulvestrant or letrozole + palbociclib or with PF-07220060 + fulvestrant

Detailed Description

Study has two parts, Part 1 (dose escalation) and Part 2 (dose expansion). Part 1 is divided into Parts 1A, 1B, 1C and 1D and Part 2 is divided into Parts 2A, 2B and 2D. In Part 1A, single escalating doses of PF-07248144 alone will be administered to determine the maximum tolerable dose (MTD) and select the recommended dose for expansion (RDE). In Part 1B,1C and 1D, PF-07248144 will be administered in combination with either fulvestrant (Part 1B); palbociclib + letrozole (Part 1C) or PF-07220060+fulvestrant (Part 1D).. After the determination of the monotherapy RDE in Part 1A, PF-07248144 will be evaluated in a dose expansion cohort as a monotherapy in Part 2A.

After determination of the combination RDE from Part 1B, PF-07248144 in combination with fulvestrant, PF-07248144 will be evaluated in a combination dose expansion with fulvestrant in Part 2B. In Part 1C, PF-07248144 in combination with letrozole + palbociclib will be evaluated for dose finding to determine the MTD and RDE for this combination. After determination of the triple combination RDE from Part 1D, PF-07248144 in combination with PF-07220060 + fulvestrant will be evaluated in a combination dose-expansion cohort, Part 2D.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
186
Inclusion Criteria
  • Disease Characteristics - Breast, Prostate, and Lung Cancer
  • Part 1A (Monotherapy Dose Escalation) Histological or cytological diagnosis of locally advanced or metastatic ER+HER2- breast cancer, CRPC, or NSCLC that is intolerant or resistant to standard therapy or for which no standard therapy is available.
  • Part 1B, Part 1C and Part 1D (Combination Dose Escalation) Histological or cytological diagnosis of locally advanced or metastatic ER+HER2- breast cancer. Participants must have progressed after at least 1 prior line of treatment with an endocrine therapy and CDK4/6 inhibitor in the advanced or metastatic setting.
  • Part 2A (ER+HER2- breast cancer 2L+, monotherapy) Histological or cytological diagnosis of locally advanced or metastatic ER+HER2- breast cancer. Participants must have progressed after at least 1 prior line of CDK4/6 inhibitor and 1 line of endocrine therapy.
  • Part 2B (ER+HER2- breast cancer 2-4L, combination with fulvestrant) Histological or cytological diagnosis of advanced or metastatic ER+HER2- breast cancer. Participants must have progressive disease after at least 1 prior line of a CDK4/6 inhibitor and at least 1 prior line of endocrine therapy.. Participants must not have received more than 3 prior lines of systemic therapies including up to 1 line of cytotoxic chemotherapy for visceral disease in advanced or metastatic setting; Participants may have but are not required to have prior treatment with fulvestrant.
  • Part 2D (ER+HER2- breast cancer 2-4L, combination with PF-07220060 (CDK4i) and fulvestrant):

Histological or cytological diagnosis of advanced or metastatic ER+HER2- breast cancer. Participants must have progressive disease after at least 1 prior line of a CDK4/6 inhibitor and at least 1 prior line of endocrine therapy.

  • Participants must have not received more than 3 lines of systemic therapies including up to 1 line of cytotoxic chemotherapy for visceral disease in advanced or metastatic setting; Participants may have but are not required to have prior treatment with fulvestrant.
  • Participants with ER+HER2- advanced or metastatic breast cancer must have documentation of ER-positive tumor (≥1% positive stained cells) based on most recent tumor biopsy utilizing an assay consistent with local standards.
  • Participants with ER+HER2- advanced or metastatic breast cancer must have documentation of HER2-negative tumor: HER2-negative tumor is determined as immunohistochemistry score 0/1+ or negative by in situ hybridization (FISH/CISH/SISH/DISH) defined as a HER2/CEP17 ratio <2 or for single probe assessment a HER2 copy number <4.
  • Female participants with ER+HER2- advanced or metastatic breast cancer considered to be of childbearing potential (or have tubal ligations only) must be willing to undergo medically induced menopause by treatment with the approved LHRH agonist such as goserelin, leuprolide or equivalent agents to induce chemical menopause.
  • Female participants with ER+HER2- advanced or metastatic breast cancer of nonchildbearing potential must meet at least 1 criteria of achieving postmenopausal status.
  • Participants must have at least 1 measurable lesion as defined by RECIST version 1.1 that has not been previously irradiated.
  • Eastern Cooperative Oncology Group (ECOG) Performance Status PS 0 or 1
  • Female or male patients aged ≥ 18 years (Japan ≥ 20 years) (South Korea ≥ 19 years).
  • Adequate renal, liver, and bone marrow function.
  • Resolved acute effects of any prior therapy to baseline severity or CTCAE Grade 1 except for adverse events (AEs) not constituting a safety risk by investigator judgment.
Exclusion Criteria
  • Unmanageable ascites (limited medical treatment to control ascites is permitted, but all participants with ascites require review by sponsor's medical monitor).
  • Participants with any other active malignancy within 3 years prior to enrollment, except for adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ.
  • Major surgery, radiation therapy, or systemic anti-cancer therapy within 3 weeks prior to study entry.
  • Prior irradiation to >25% of the bone marrow.
  • ECG clinically relevant abnormalities (eg, QTc >470 msec, complete LBBB, second/third degree AV block, ST elevation or EKG changes suggesting myocardial infarction or active myocardia ischemia).
  • Therapeutic anticoagulation. However, low molecular weight heparin is allowed. Vitamin K antagonists or factor Xa inhibitors may be allowed following discussion with the Sponsor.
  • Known or suspected hypersensitivity or severe allergy to active ingredient/excipients of PF-07248144.
  • Active inflammatory GI disease, refractory and unresolved chronic diarrhea or previous gastric resection, lap band surgery or other GI conditions and surgeries that may significantly alter the absorption of PF-07248144 tablets. Gastroesophageal reflux disease under treatment is allowed.
  • Pregnant or breastfeeding female participants.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
1B Combination Dose EscalationPF-07248144PF-07248144 with Fulvestrant Combination Dose Escalation
2A Monotherapy Dose Expansion ArmPF-07248144PF-07248144 Monotherapy Dose Expansion
1C Combination Dose EscalationPF-07248144PF-07248144 with Letrozole + Palbociclib Combination Dose Escalation
1A Monotherapy Dose EscalationPF-07248144PF-07248144 Monotherapy Escalation
1D Combination Dose EscalationPF-07220060PF-07248144 with PF-07220060 +Fulvestrant
2B Combination Dose Expansion ArmPF-07248144PF-07248144 with Fulvestrant Dose Expansion
2D Combination Dose Expansion ArmPF-07220060PF-07248144 with PF-07220060 +Fulvestrant Dose Expansion
2D Combination Dose Expansion ArmPF-07248144PF-07248144 with PF-07220060 +Fulvestrant Dose Expansion
1D Combination Dose EscalationPF-07248144PF-07248144 with PF-07220060 +Fulvestrant
China Monotherapy Dose ExpansionPF-07248144PF-07248144 Monotherapy Dose Expansion
1D Combination Dose EscalationFulvestrantPF-07248144 with PF-07220060 +Fulvestrant
1B Combination Dose EscalationFulvestrantPF-07248144 with Fulvestrant Combination Dose Escalation
1C Combination Dose EscalationLetrozolePF-07248144 with Letrozole + Palbociclib Combination Dose Escalation
1C Combination Dose EscalationPalbociclibPF-07248144 with Letrozole + Palbociclib Combination Dose Escalation
2B Combination Dose Expansion ArmFulvestrantPF-07248144 with Fulvestrant Dose Expansion
2D Combination Dose Expansion ArmFulvestrantPF-07248144 with PF-07220060 +Fulvestrant Dose Expansion
Primary Outcome Measures
NameTimeMethod
Safety and Tolerability as assessed by adverse event monitoring for participants enrolled in the Dose Expansion ArmsUp to 24 months

Adverse Events as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0), timing, seriousness, and relationship to study therapy.

Safety and Tolerability as assessed by adverse event monitoring for participants enrolled in the Dose Escalation Arms.Up to 24 months

Adverse Events as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0), timing, seriousness, and relationship to study therapy.

Safety and Tolerability through monitoring of laboratory assessments for participants enrolled in the Dose Escalation Arms.Up to 24 months

Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0), and timing.

Number of participants with dose-limiting toxicities in the Dose Escalation Arms.Up to 29 days

Dose-limiting toxicities (DLTs)

Safety and Tolerability through monitoring of laboratory assessments for participants enroled in the Dose Expansion ArmsUp to 24 months

Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0), and timing.

Secondary Outcome Measures
NameTimeMethod
Single Dose: Maximum Observed Concentration (Cmax) in the Dose Escalation and Dose Finding ArmsUp to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Single Dose: Time to Maximum concentration (Tmax) in the Dose Escalation and Dose Finding ArmsUp to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Multiple Dose: Steady-state Tmax (Tmax,ss) in the Dose Escalation and Dose Finding ArmsUp to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Maximum Observed Concentration (Cmax) in the participants in the food effect subset in monotherapy dose expansion armCycle 1 Day -7 and Cycle 1 Day 1 (each cycle is 28 days)

The effect of food on the PK of PF-07248144.

Multiple Dose: Steady-State Cmax (Cmax,ss) in the Dose Escalation and Dose Finding ArmsUp to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Palbociclib trough concentrations at steady instate (Cmin,ss) in the 1C combination dose finding arm.Up to 24 months

Pharmacokinetic (PK) assessment for palbociclib exposure.

Duration of Response (DOR) in participants enrolled in the Dose Expansion ArmsUp to 24 months
Peak concentrations of PF-07248144 and PF-07220060 (Part 2D) for selected cycles in the Dose Expansion ArmsUp to 24 months

Pharmacokinetic (PK) assessment for PF-07248144 and PF-07220060 (Part 2D)

Multiple Dose: Steady state AUC during a dosage interval (τ) (AUCτ,ss) in the Dose Escalation and Dose Finding ArmsUp to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Multiple Dose: Steady-state apparent total clearance (CLss/F) in the Dose Escalation and Dose Finding Arms.Up to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Trough concentrations of PF-07248144 for selected cycles in the Dose Expansion ArmsUp to 24 months

Pharmacokinetic (PK) assessment for PF-07248144 and PF-07220060 (Part 2D)

Time to Maximum concentration (Tmax) in the participants in the food effect subset in monotherapy dose expansion armCycle 1 Day -7 and Cycle 1 Day 1 (each cycle is 28 days)

The effect of food on the PK of PF-07248144.

AUC from time zero to time of last measurable concentration (AUClast) in the participants in the food effect subset in monotherapy dose expansion armCycle 1 Day -7 and Cycle 1 Day 1 (each cycle is 28 days)

The effect of food on the PK of PF 07248144.

Renal clearance (CLr) in a sub-set of participants in monotherapy dose expansion armUp to 24 months

Evaluate urine pharmacokinetic (PK) of PF-07248144.

Overall survival (OS) observed in participants enrolled in Dose Expansion ArmsUp to 24 months
Best Overall Response (BOR) observed in participants in the dose expansion armsUp to 24 months
Clinical Benefit Rate (CBR) observed in participants in the Dose Expansion Armsup to 24 months
Single Dose: AUC from time zero to time of last measurable concentration (AUClast) in the Dose Escalation and Dose Finding ArmsUp to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Single and Multiple Dose: Terminal Elimination half-life (t1/2) in the Dose Escalation and Dose Finding ArmsUp to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Multiple Dose: Steady-state Cmin (Cmin,ss) in the Dose Escalation and Dose Finding Arms.Up to 24 months

Pharmacokinetic (PK) assessments for PF-07248144 and PF-07220060 (Part 1D)

Best Overall Response (BOR) in participants in the Dose Expansion ArmsUp to 24 months
Amount of PF-07248144 excreted in urine relative to dose administered (%) in a sub-set of participants in monotherapy dose expansion arm.Up to 24 months

Evaluate urine pharmacokinetic (PK) of PF-07248144.

Progression Free Survival (PFS) observed in participants in the Dose Expansion ArmsUp to 24 months
Duration of Response (DOR) observed in participants in the dose expansion armsup to 24 months
Time to Progression (TTP) observed in participants enrolled in the Dose Expansion ArmsUp to 24 months

Trial Locations

Locations (40)

Beijing Cancer hospital

🇨🇳

Beijing, Beijing, China

SUN Yat-Sen University Cancer Center

🇨🇳

Guangzhou, Guangdong, China

Hubei Cancer Hospital

🇨🇳

Wuhan, Hubei, China

Jilin Province Tumor Hospital

🇨🇳

Changchun, Jilin, China

HonorHealth

🇺🇸

Scottsdale, Arizona, United States

Cedars Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute

🇺🇸

Los Angeles, California, United States

Cedars-Sinai Medical Center; SOCCI Pharmacy

🇺🇸

Los Angeles, California, United States

UCSF Medical Center at Mission Bay

🇺🇸

San Francisco, California, United States

Smilow Cancer Hospital at Yale - New Haven

🇺🇸

New Haven, Connecticut, United States

Yale-New Haven Hospital- Yale Cancer Center

🇺🇸

New Haven, Connecticut, United States

Smilow Cancer Hospital Phase 1 Unit

🇺🇸

New Haven, Connecticut, United States

Holy Cross Hospital

🇺🇸

Fort Lauderdale, Florida, United States

St. Elizabeth Healthcare

🇺🇸

Edgewood, Kentucky, United States

James Graham Brown Cancer Center

🇺🇸

Louisville, Kentucky, United States

University Medical Center, lnc.:DBA University of Louisville Hospital

🇺🇸

Louisville, Kentucky, United States

Tennessee Oncology PLLC

🇺🇸

Nashville, Tennessee, United States

Sarah Cannon Research Institute

🇺🇸

Nashville, Tennessee, United States

The Sarah Cannon Research Institute / Tennessee Oncology, PLLC

🇺🇸

Nashville, Tennessee, United States

The University of Texas M. D. Anderson Cancer Center

🇺🇸

Houston, Texas, United States

U.T. MD Anderson Cancer Center

🇺🇸

Houston, Texas, United States

NEXT Oncology

🇺🇸

San Antonio, Texas, United States

Swedish Cancer Institute

🇺🇸

Seattle, Washington, United States

Swedish Medical Center

🇺🇸

Seattle, Washington, United States

Chris O'Brien Lifehouse

🇦🇺

Camperdown, New South Wales, Australia

Cancer Research South Australia

🇦🇺

Adelaide, South Australia, Australia

Peter MacCallum Cancer Centre

🇦🇺

Melbourne, Victoria, Australia

Royal Melbourne Hospital

🇦🇺

Parkville, Victoria, Australia

Western Health-Sunshine & Footscray Hospitals

🇦🇺

St Albans, Victoria, Australia

St. John of God Subiaco Hospital

🇦🇺

Subiaco, Western Australia, Australia

The First Affiliated Hospital of Xi'an Jiaotong University

🇨🇳

Xi'an, Shaanxi, China

Aichi Cancer Center Hospital

🇯🇵

Nagoya, Aichi, Japan

National Cancer Center Hospital East

🇯🇵

Kashiwa, Chiba, Japan

Kanagawa cancer center

🇯🇵

Yokohama, Kanagawa, Japan

National Cancer Center Hospital

🇯🇵

Chuo-ku, Tokyo, Japan

Seoul National University Bundang Hospital

🇰🇷

Seongnam, Ky?nggi-do, Korea, Republic of

Seoul National University Hospital

🇰🇷

Seoul, Seoul-teukbyeolsi [seoul], Korea, Republic of

Severance Hospital, Yonsei University Health System

🇰🇷

Seoul, Seoul-teukbyeolsi [seoul], Korea, Republic of

Samsung Medical Center

🇰🇷

Seoul, Seoul-teukbyeolsi [seoul], Korea, Republic of

Kyungpook National University Chilgok Hospital

🇰🇷

Daegu, Taegu-kwangyǒkshi, Korea, Republic of

Asan Medical Center

🇰🇷

Seoul, Korea, Republic of

© Copyright 2025. All Rights Reserved by MedPath