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A Phase 1 Dose Escalation and Expanded Cohort Study Of PF-06821497 In The Treatment Of Adult Patients With Relapsed/Refractory Small Cell Lung Cancer (SCLC), Castration Resistant Prostate Cancer (CRPC) And Follicular Lymphoma (FL).

Last updated on August 21, 2018

FOR MORE INFORMATION
Study Location
Brigham and Women's Hospital
Boston, Massachusetts, 02115 United States
Contact
1-800-718-1021
Eligibility criteria
Condition
The disease, disorder, syndrome, illness, or injury that is being studied.
Small Cell Lung Cancer (SCLC), Follicular Lymphoma (FL), Castration Resistant Prostate Cancer (CRPC), Diffuse Large B-Cell Lymphoma (DLBCL)
Sex
Females and Males
Age
Pediatric Trials: 0-17 Years
Adult Trials: 18+ Years
18+ years
Inclusion criteria
The factors, or reasons, that allow a person to participate in a clinical study.
Show details

Part 1A:Histologically / cytologically confirmed advanced/unresectable or metastatic SCLC, CRPC,
DLBCL and FL that is refractory to or intolerable of SOC, or for which SOC is unavailable.
Note for FL (Parts 1A and 1B) during the dose finding phase of study, follicular lymphoma
patients must have exhausted all standard of care therapies.


Part 1B
:

Histologically confirmed FL patients that have exhausted all standard of care therapies and
have relapsed or refractory disease.


Part 2
:

-Histologically or cytologically confirmed treatment naïve extensive disease SCLC
patients;

- Histologically confirmed FL patients that have exhausted all standard of care
therapies and have relapsed or refractory disease (Part 2B).

- Histological / cytological diagnosis of castration resistant prostate cancer. Received
either abiraterone and/or enzalutamide treatment (chemotherapy naïve ) and has
evidence of prostate cancer progression (per PWG3):

- SCLC patients entering the study in the expansion cohort with at least one
measurable lesion as defined by Response Evaluation Criteria in Solid Tumors
(RECIST) version 1.1.

- FL patients entering the study in the expansion cohort with at least one
measurable lesion as defined by Response Evaluation Criteria in Lymphoma (RECIL)
criteria.

- Females and/or male patients age 18 years.

- Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) of 0 or 1.

- Adequate Bone Marrow Function

- Adequate Renal Function

- Adequate Liver Function

- Serum pregnancy test (for females of childbearing potential) negative at
screening, and negative serum or urine pregnancy test at baseline prior to
treatment administration.


Exclusion criteria
The factors, or reasons, that prevent a person from participating in a clinical study.
Show details

- Known symptomatic brain metastases requiring steroids or CNS involvement in FL.
Previously diagnosed brain metastases are eligible if they have been treated and
recovered from the acute effects of radiation therapy or surgery prior to study entry,
have discontinued corticosteroid treatment for these metastases for at least 4 weeks
and are neurologically stable.

- At least 3 weeks since last major surgery (a lesser period is acceptable if decided to
be in the best interest of the SCLC patient).

- Radiation therapy within 4 weeks prior to study entry. Note, patients who have
received radiotherapy must have recovered from any reversible side effects, such as
nausea and vomiting.

- Last systemic anti cancer chemotherapy or small molecule inhibitor treatment within 4
weeks prior to Cycle 1 Day 1, within 2 weeks if prior monoclonal antibody therapy was
included. Prostate cancer cohorts must be chemotherapy naïve.

- Last anti hormonal therapy within 2 weeks prior to C1D1.

- Prior allogenic stem cell transplant (ASCT).

- Prior irradiation to >25% of the bone marrow (see Appendix for Bone Marrow Reserve in
Adults).

- Active and clinically significant bacterial, fungal, or viral infection, including
hepatitis B virus (HBV), hepatitis C virus (HCV), known human immunodeficiency virus
(HIV) or acquired immunodeficiency syndrome (AIDS) related illness.

- Any of the following in the previous 6 months: myocardial infarction, congenital long
QT syndrome, Torsades de pointes, arrhythmias (including sustained ventricular
tachyarrhythmia and ventricular fibrillation), right bundle branch block and left
anterior hemiblock (bifascicular block), unstable angina, coronary/peripheral artery
bypass graft, symptomatic congestive heart failure (New York Heart Association class
III or IV), cerebrovascular accident, transient ischemic attack, or symptomatic
pulmonary embolism; ongoing cardiac dysrhythmias of NCI CTCAE Grade 2, atrial
fibrillation of any grade, or QTcF interval >480 msec at screening.

- Hypertension that cannot be controlled by medications (>150/100 mmHg despite optimal
medical therapy).

- Participation in other studies involving investigational drug(s) within 28 days or 5
half lives of the investigational drug(s) (whichever is longer, excluding monoclonal
antibodies which require a washout of 2 weeks) prior to study entry.

- Known or suspected hypersensitivity to PF 06821497 or any components or enzalutamide
(CRPC) or platinum compound.

- Other acute or chronic medical or psychiatric condition, including recent (within the
past year) or active suicidal ideation or behavior or laboratory abnormality that may
increase the risk associated with study participation or investigational product
administration or may interfere with the interpretation of study results and, in the
judgment of the investigator, would make the patient inappropriate for entry into this
study.

- Investigator site staff members directly involved in the conduct of the study and
their family members, site staff members otherwise supervised by the investigator, or
patients who are Pfizer employees, including their family members, directly involved
in the conduct of the study.

- Pregnant female patients; breastfeeding female patients; fertile male patients and
female patients of childbearing potential who are unwilling or unable to use 2 highly
effective methods of contraception as outlined in this protocol for the duration of
the study and for at least 28days after the last dose of investigational product.

- Active inflammatory gastrointestinal disease, chronic diarrhea, known diverticular
disease or previous gastric resection or lap band surgery. Gastroesophageal reflux
disease under treatment with proton pump inhibitors is allowed.

- Current use or anticipated need for food or drugs that are known strong CYP3A4/5
inhibitors, including their administration within 10 days or 5 half lives of the
CYP3A4/5 inhibitor, whichever is longer prior to first dose of investigational
product.

- Current use or anticipated need for drugs that are known strong CYP3A4/5 inducers,
including their administration within 10 days or 5 half lives of the CYP3A4/5 inducer,
whichever is longer prior to the first dose of investigational product.

Trial Details
Administration
The form in which the study drug will be delivered to the patient's body.
Tablets
Placebo
A placebo often looks like the investigational medication, but it has no active ingredient in it.
A placebo is not used in this trial
Duration
The time commitment for participation in the study.
Treatment: At least 24 weeks
Follow up: Estimated 4 weeks
Screening: Range 0 days
Site Visits
Treatment: At least 9 visits
Follow up: At least 1 visits
Screening: Estimated 3 visits
Prior Approval
The study drug has not been approved yet.
Post-Trial Access to Study Drug
Not planned
NCT03460977
Pfizer
Recruiting
A Phase 1 Dose Escalation and Expanded Cohort Study Of PF-06821497 In The Treatment Of Adult Patients With Relapsed/Refractory Small Cell Lung Cancer (SCLC), Castration Resistant Prostate Cancer (CRPC) And Follicular Lymphoma (FL).

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PF-06821497 Treatment Of Relapsed/Refractory SCLC, Castration Resistant Prostate Cancer, and Follicular Lymphoma
A Phase I Dose Escalation And Expanded Cohort Study Of Pf-06821497 In The Treatment Of Adult Patients With Relapsed/Refractory Small Cell Lung Cancer (Sclc), Castration Resistant Prostate Cancer (Crpc) And Follicular Lymphoma (fl)
A Phase 1 Dose Escalation and Expanded Cohort Study Of PF-06821497 In The Treatment Of Adult Patients With Relapsed/Refractory Small Cell Lung Cancer (SCLC), Castration Resistant Prostate Cancer (CRPC) And Follicular Lymphoma (FL).

This is an open label, multi center, Phase 1 dose escalation study of PF 06821497 administered orally as a single agent BID to patients with SCLC, CRPC, DLBCL and FL (Part 1A). For Part 1B (dose escalation monotherapy), PF 06821497 will be administered as monotherapy in patients with FL. For Part 2A (dose escalation combination therapy), PF 06821497 will be administered in combination with SOC in patients with SCLC and CRPC. For Part 2B (dose expansion), PF 06821497 will be administered in combination with SOC in patients with SCLC and CRPC, and as monotherapy in patients with FL.

Part 1A (escalation monotherapy) will assess PF 06821497 administered as a single agent twice daily in a continuous regimen to patients with advanced tumors (SCLC CRPC, DLBCL and FL). A modified toxicity probability interval (mTPI) dose finding design will be applied in 2 4 patient cohorts. The starting dose of PF 06821497 will be 75 mg BID (DL1). Once the safety and adequate target modulation has been established Parts 1B and 2A of the trial will be initiated. Additional dose levels may be investigated, if adequate target inhibition has not been achieved at DL3.

Part 1B [escalation recommended Phase 2 dose (RP2D) finding - monotherapy] will determine the maximum tolerated dose (MTD) of monotherapy in FL (MTD1).

Part 2A (escalation RP2D finding -combination) will determine the MTD of the combination with SOC in patients with SCLC (cisplatin or carboplatin with etoposide, MTD2, MTD3) and CRPC (MTD4). Part 2B (dose expansion) will assess the efficacy of PF 06821497 at the RP2D identified from the Part 2A, in combination with SOC in patients with SCLC (n=16 to 30 for the 2 combination regimens), and CRPC (n=8 to 20) in addition to as a single agent twice daily in patients with FL (n=8 to 20).

Interventional
Phase 1
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
  • Small Cell Lung Cancer (SCLC)
  • Follicular Lymphoma (FL)
  • Castration Resistant Prostate Cancer (CRPC)
  • Diffuse Large B-Cell Lymphoma (DLBCL)
Drug: PF-06821497
Oral continuous (Part 1)
  • Experimental: DL 1
    PF-06821497 75 mg BID
    Intervention: Drug: PF-06821497
  • Experimental: DL 2
    PF-06821497 150 mg BID
    Intervention: Drug: PF-06821497
  • Experimental: DL 3
    PF-06821497 250 mg BID
    Intervention: Drug: PF-06821497
  • Experimental: DL 4
    PF-06821497 375 mg BID
    Intervention: Drug: PF-06821497
  • Experimental: DL 5
    PF-06821497 500 mg BID
    Intervention: Drug: PF-06821497
  • Experimental: DL 6
    PF-06821497 625 mg BID
    Intervention: Drug: PF-06821497
Not Provided


*   Includes publications given by the data provider as well as publications
identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Not yet recruiting
172
September 2021
September 2021   (Final data collection date for primary outcome measure)

Key Inclusion Criteria:

Part 1A:

-Histologically / cytologically confirmed advanced/unresectable or metastatic SCLC, CRPC, DLBCL and FL that is refractory to or intolerable of SOC, or for which SOC is unavailable. Note for FL (Parts 1A and 1B) during the dose finding phase of study, follicular lymphoma patients must have exhausted all standard of care therapies.

Part 1B:

Histologically confirmed FL patients that have exhausted all standard of care therapies and have relapsed or refractory disease.

Part 2:

  • Histologically or cytologically confirmed treatment naïve extensive disease SCLC patients;
  • Histologically confirmed FL patients that have exhausted all standard of care therapies and have relapsed or refractory disease (Part 2B).
  • Histological / cytological diagnosis of castration resistant prostate cancer. Received either abiraterone and/or enzalutamide treatment (chemotherapy naïve ) and has evidence of prostate cancer progression (per PWG3):

    • SCLC patients entering the study in the expansion cohort with at least one measurable lesion as defined by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
    • FL patients entering the study in the expansion cohort with at least one measurable lesion as defined by Response Evaluation Criteria in Lymphoma (RECIL) criteria.
    • Females and/or male patients age 18 years.
    • Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) of 0 or 1.
    • Adequate Bone Marrow Function
    • Adequate Renal Function
    • Adequate Liver Function
    • Serum pregnancy test (for females of childbearing potential) negative at screening, and negative serum or urine pregnancy test at baseline prior to treatment administration.

Exclusion Criteria:

  • Known symptomatic brain metastases requiring steroids or CNS involvement in FL. Previously diagnosed brain metastases are eligible if they have been treated and recovered from the acute effects of radiation therapy or surgery prior to study entry, have discontinued corticosteroid treatment for these metastases for at least 4 weeks and are neurologically stable.
  • At least 3 weeks since last major surgery (a lesser period is acceptable if decided to be in the best interest of the SCLC patient).
  • Radiation therapy within 4 weeks prior to study entry. Note, patients who have received radiotherapy must have recovered from any reversible side effects, such as nausea and vomiting.
  • Last systemic anti cancer chemotherapy or small molecule inhibitor treatment within 4 weeks prior to Cycle 1 Day 1, within 2 weeks if prior monoclonal antibody therapy was included. Prostate cancer cohorts must be chemotherapy naïve.
  • Last anti hormonal therapy within 2 weeks prior to C1D1.
  • Prior allogenic stem cell transplant (ASCT).
  • Prior irradiation to >25% of the bone marrow (see Appendix for Bone Marrow Reserve in Adults).
  • Active and clinically significant bacterial, fungal, or viral infection, including hepatitis B virus (HBV), hepatitis C virus (HCV), known human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS) related illness.
  • Any of the following in the previous 6 months: myocardial infarction, congenital long QT syndrome, Torsades de pointes, arrhythmias (including sustained ventricular tachyarrhythmia and ventricular fibrillation), right bundle branch block and left anterior hemiblock (bifascicular block), unstable angina, coronary/peripheral artery bypass graft, symptomatic congestive heart failure (New York Heart Association class III or IV), cerebrovascular accident, transient ischemic attack, or symptomatic pulmonary embolism; ongoing cardiac dysrhythmias of NCI CTCAE Grade 2, atrial fibrillation of any grade, or QTcF interval >480 msec at screening.
  • Hypertension that cannot be controlled by medications (>150/100 mmHg despite optimal medical therapy).
  • Participation in other studies involving investigational drug(s) within 28 days or 5 half lives of the investigational drug(s) (whichever is longer, excluding monoclonal antibodies which require a washout of 2 weeks) prior to study entry.
  • Known or suspected hypersensitivity to PF 06821497 or any components or enzalutamide (CRPC) or platinum compound.
  • Other acute or chronic medical or psychiatric condition, including recent (within the past year) or active suicidal ideation or behavior or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for entry into this study.
  • Investigator site staff members directly involved in the conduct of the study and their family members, site staff members otherwise supervised by the investigator, or patients who are Pfizer employees, including their family members, directly involved in the conduct of the study.
  • Pregnant female patients; breastfeeding female patients; fertile male patients and female patients of childbearing potential who are unwilling or unable to use 2 highly effective methods of contraception as outlined in this protocol for the duration of the study and for at least 28days after the last dose of investigational product.
  • Active inflammatory gastrointestinal disease, chronic diarrhea, known diverticular disease or previous gastric resection or lap band surgery. Gastroesophageal reflux disease under treatment with proton pump inhibitors is allowed.
  • Current use or anticipated need for food or drugs that are known strong CYP3A4/5 inhibitors, including their administration within 10 days or 5 half lives of the CYP3A4/5 inhibitor, whichever is longer prior to first dose of investigational product.
  • Current use or anticipated need for drugs that are known strong CYP3A4/5 inducers, including their administration within 10 days or 5 half lives of the CYP3A4/5 inducer, whichever is longer prior to the first dose of investigational product.
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
No

Contact: Pfizer CT.gov Call Center 1-800-718-1021 [email protected]
United States
 
 
NCT03460977
C2321001
No
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Plan to Share IPD: No
Plan Description: Information relating to our policy on data sharing and the process for requesting data can be found at the following link: http://www.pfizer.com/research/clinical_trials/trial_data_and_results/da...
Pfizer
Pfizer
Not Provided
Study Director: Pfizer CT.gov Call Center Pfizer
Pfizer
March 2018

ICMJE     Data element required by the

International Committee of Medical Journal Editors
and the
World Health Organization ICTRP

FOR MORE INFORMATION

Contact a representative by phone, email, or visiting thte study website. To get updates and notications about this trail, sign up using the form below.

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1-800-718-1021

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