MedPath

A Phase 1b/2 Study of PF-07220060 in Combination with PF-07104091 Plus Endocrine Therapy in Participants with BC and other Advanced Solid Tumors

Phase 1
Active, not recruiting
Conditions
HR-positive HER2-negative metastatic/advanced BC
MedDRA version: 20.0Level: PTClassification code 10006187Term: Breast cancerSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)
MedDRA version: 20.1Level: PTClassification code 10055113Term: Breast cancer metastaticSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Therapeutic area: Diseases [C] - Cancer [C04]
Registration Number
EUCTR2022-002173-28-BG
Lead Sponsor
Pfizer Inc.
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Not Recruiting
Sex
All
Target Recruitment
240
Inclusion Criteria

• Male and female participants =18 years of age at Visit 1.
• Histological or cytological diagnosis of locally advanced or metastatic solid tumor/diagnosis which is unresectable.
• Evaluable lesion (including skin or bone lesion only, Part 1)
• Participants entering the study in the expansion cohort have at least 1 measurable lesion as defined by RECIST (version 1.1) that has not been previously irradiated.• Cancer type:
• HR-positive HER2-negative tumor (Part 1 and Part 2)
• HR-positive HER2-positive tumor (Part 1)
• Advanced solid tumor or metastatic disease (Part 1)
• ECOG PS 0 or 1.
Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 144
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 96

Exclusion Criteria

• Prior/concomitant treatment as follows:
• prior treatment with any CDK 4/6 inhibitor, or fulvestrant, or everolimus, or any agent whose mechanism of action is to inhibit the PI3K-mTOR pathway (Part 2B);
• prior neoadjuvant or adjuvant treatment with a non-steroidal AI (ie, anastrozole or letrozole) with disease recurrence while on or within 12 months of completing treatment (Part 2C);
• prior treatment with any CDK4/6 inhibitor for advanced disease (Part 2B and 2C);
• radiation therapy within 4 weeks prior to study enrollment, with the exception of palliative radiotherapy following discussion with the sponsor.
• Inadequate organ function.
• Known bleeding disorders.
• Participation in other studies involving investigational drug(s) within 4 weeks (or 5 half-lives, whichever is shorter) prior to study entry.
• 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 of the cervix, Bowen’s disease.
• Current use or anticipated need for PPI within 7 days prior to first dose of the study intervention. For participants with gastroesophageal reflux disease, concurrent treatment with PPIs is not allowed and treatment with H2 blockers and/or antacids if medically required must be dosed according to protocol guidelines (Section 6.8.7).
• Previous high-dose chemotherapy requiring stem cell rescue.
• Last anticancer treatment within 2 weeks (or 5 half-lives, whichever is shorter, unless the last immediate anticancer treatment contained an antibody-based agent(s) (approved or investigational), then the interval of 4 weeks or 5 half-lives (whichever is shorter) is required prior to receiving the study intervention (except in Part 2C where no systemic anticancer treatment in advanced or metastatic setting is allowed).

Study & Design

Study Type
Interventional clinical trial of medicinal product
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Secondary Outcome Measures
NameTimeMethod
© Copyright 2025. All Rights Reserved by MedPath