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Plinabulin vs. Pegfilgrastim in Patients With Solid Tumors Receiving Docetaxel Myelosuppressive Chemotherapy Phase 3

A Phase 3, Multicenter, Randomized, Double Blind, Study to Evaluate Duration of Severe Neutropenia With Plinabulin Versus Pegfilgrastim in Patients With Solid Tumors Receiving Docetaxel Myelosuppressive Chemotherapy (Protective 1)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03102606
Acronym
Protective-1
Enrollment
105
Registered
2017-04-06
Start date
2018-05-29
Completion date
2021-02-08
Last updated
2024-08-29

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

Conditions

Chemotherapy-induced Neutropenia

Keywords

Plinabulin, Pegfilgrastim, Duration of Severe Neutropenia, Bone Pain

Brief summary

To assess Duration of Severe Neutropenia (DSN) in treatment Cycle 1 in patients with advanced or metastatic breast cancer, who have failed \>/= 1 but \< 5 prior lines of chemotherapy; locally advanced or metastatic non small cell lung cancer (NSCLC) after platinum therapy failure; or hormone refractory (androgen independent) metastatic prostate cancer treated with docetaxel (75 mg/m2) + plinabulin (40 mg) versus docetaxel (75 mg/m2) + pegfilgrastim (6 mg). Neutrophils count will be assessed at baseline; Pre dose during Cycle 1, Day 1, 2, 6, 7, 8, 9, 10, 15. \*Study is officially closed on 08 Feb 2021\*

Detailed description

Arm 1: Docetaxel (75 mg/m2) + pegfilgrastim (6 mg) + placebo matching plinabulin Arm 2: Docetaxel (75 mg/m2) + plinabulin (40 mg) + placebo matching pegfilgrastim

Interventions

Plinabulin (BPI-2358) is a synthetic, low molecular weight, new chemical entity that belongs to the diketopiperazine class of compounds. Plinabulin is intended for intravenous (IV) infusion and is diluted in D5W and administered for 30 minutes (± 5 minutes).

DRUGPegfilgrastim

PEGFILGRASTIM is a long-acting granulocyte colony-stimulating factor that stimulates the growth of neutrophils, to reduce the incidence of fever and infection in patients with certain types of cancer who are receiving chemotherapy that affects the bone marrow.

OTHERSaline Placebo

Placebo Syringe 0.6 ml Saline to match the 0.6 ml pegfilgrastim administration

Placebo 250 ml D5W to match the administration of plinabulin diluted in 250 ml D5W

Sponsors

Covance
CollaboratorINDUSTRY
ICON plc
CollaboratorINDUSTRY
BeyondSpring Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Masking description

Plinabulin and pegfilgrastim are each masked using a double-dummy design in phase 3. Docetaxel administration is not masked.

Eligibility

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

Inclusion criteria

1. At least ≥ 18 years of age (male or female) at the time of signing the informed consent form. 2. ECOG performance status of 0 to 1. 3. Patients with: Phase 2 only: • Advanced or metastatic NSCLC failing platinum-based therapy Phase 3 only: * Advanced or metastatic breast cancer, who have failed \< 5 prior lines of chemotherapy (Note that study treatment may be the first chemotherapy treatment for advanced or metastatic cancer) * locally advanced or metastatic NSCLC after platinum therapy failure * HRPC (Note that study treatment may be the first chemotherapy treatment) 4. Pathology confirmation of cancer is required. 5. Patients with ≥ 1 of the following risk factors, at the initiation of docetaxel chemotherapy, that would require neutropenia prophylaxis per National Comprehensive Cancer Network (NCCN) guidelines (version 2, 2016): * Prior chemotherapy or radiation treatment * Bone marrow involvement by tumor * Surgery and/or open wounds within 4 weeks of first administration of study drug * Age \> 65 years of age and receiving full chemotherapy dose intensity 6. Life expectancy of 3 months or more. 7. The following laboratory results assessed within 14 days prior to study drug administration: * Hemoglobin \>/= 9 g/dL independent of transfusion or growth factor support * Absolute neutrophil count (ANC) \>/= 1.5 x 10\*\*9/L independent of growth factor support * Serum total bilirubin \</= 1.5 times the upper limit normal (ULN), unless the patient has a diagnosis of Gilbert's disease, in which case direct bilirubin \</= 1.5 times ULN of the direct bilirubin. * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \</= 2.5 x ULN (\</= 1.5 x ULN if alkaline phosphatase is \> 2.5 x ULN) * Serum creatinine \</= 1.5 x ULN Note: Results are from the central laboratory. Local laboratory results may be accepted on a case by case basis after discussion with the Medical Monitor, however in this case central laboratories must also be taken within the screening time window. 8. Prothrombin time (PT)/International Normalized Ratio (INR) ≤ 1.5 × upper limit of normal (ULN), activated partial thromboplastin time (PTT) ≤ 1.5 × ULN, based on central laboratory results. 9. Female subjects of childbearing potential have a negative pregnancy test at screening. Females of childbearing potential are defined as sexually mature women without prior hysterectomy or who have had any evidence of menses in the past 12 months. However, women who have been amenorrhoeic for 12 or more months are still considered to be of childbearing potential if the amenorrhea is possibly due to prior chemotherapy, anti-estrogens, or ovarian suppression. * Women of childbearing potential (i.e., menstruating women) must have a negative urine pregnancy test (positive urine tests are to be confirmed by serum test) documented within the 24-hour period prior to the first dose of study drug. * Sexually active women of childbearing potential enrolled in the study must agree to use two forms of accepted methods of contraception during the course of the study and for 3 months after their last dose of study drug. Effective birth control includes (a) intrauterine device (IUD) plus one barrier method; (b) on stable doses of hormonal contraception for at least 3 months (e.g., oral, injectable, implant, transdermal) plus one barrier method; (c) 2 barrier methods. Effective barrier methods are male or female condoms, diaphragms, and spermicides (creams or gels that contain a chemical to kill sperm); or (d) a vasectomized partner. * For male patients who are sexually active and who are partners of premenopausal women: agreement to use two forms of contraception during the treatment period and for at least 3 months after the last dose of study drug.

Exclusion criteria

1. History of myelogenous leukemia, myelodysplastic syndrome or concomitant sickle cell disease. 2. Received chemotherapy within 4 weeks prior to the first dose of study drug. 3. Received prior docetaxel treatment, except adjuvant docetaxel given \> 1 year prior to first dose of study drug 4. Phase 3 only: Received \>/= 5 lines of cytotoxic chemotherapy for advanced or metastatic breast cancer (adjuvant chemotherapy will count as one line of chemotherapy, and any hormonal or biological, non conjugate therapy \[e.g., trastuzumab\] will not count as a line of therapy). 5. Current use of strong cytochrome P450 (CYP) 3A4 inhibitors, within 3 days of the first administration of study drug, and 7 days after treatment with taxanes OR requires use of strong CYP3A4 inhibitors 6. Received an investigational agent or tumor vaccine within 2 weeks before the first dose of study drug; patients must have recovered from toxicity of prior treatment and have no \> Grade 1 CTCAE (v4.03) treatment emergent AEs. 7. Receiving any concurrent anticancer therapies (except continued hormonal treatment). 8. Received a prior bone marrow or stem cell transplant. 9. Has a co-existing active infection or received systemic anti-infective treatment within 72 hours before the first dose of study drug. 10. Prior radiation therapy within the 4 weeks before the first dose of study drug. 11. Prior use of pegfilgrastim or filgrastim within 4 weeks before the first dose of study drug. 12. Presence of any serious or uncontrolled illness including, but not limited to: uncontrolled diabetes, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, uncontrolled cardiac arrhythmia, uncontrolled arterial thrombosis, symptomatic pulmonary embolism, or psychiatric illness that would limit compliance with study requirements, or any other conditions that would preclude the patient from study treatment as per the discretion of the Investigator. 13. Significant cardiovascular history: * History of myocardial infarction or ischemic heart disease within 1 year (within a window of up to 18 days less than 1 year) before first study drug administration; * Uncontrolled arrhythmia; * History of congenital QT prolongation; * Electrocardiogram (ECG) findings consistent with active ischemic heart disease; * New York Heart Association Class III or IV cardiac disease; * Uncontrolled hypertension: blood pressure consistently \>150 mm Hg systolic and \> 100 mm Hg diastolic in spite of antihypertensive medication. 14. History of hemorrhagic diarrhea, inflammatory bowel disease, or active uncontrolled peptic ulcer disease. (Concomitant therapy with ranitidine or its equivalent and/or omeprazole or its equivalent is acceptable). History of ileus or other significant gastrointestinal disorder known to predispose to ileus or chronic bowel hypomotility. 15. Any other malignancy requiring active therapy. 16. Known human immunodeficiency virus (HIV) seropositivity. 17. Active Hepatitis B virus (HBV) infection which requires antiviral treatment. Patients with detectable Hepatitis B surface Antigen (HBsAg) may be eligible provided the patient has a negative viral load. Patients with a positive HBsAg must have a negative viral load before each chemotherapy administration. Hepatitis B surface antibody (anti HBs) without detectable HBsAg does NOT exclude patients from the study. Hepatitis C infection (Hepatitis C antibody reactive) which requires treatment also excludes patients from the study. 18. Female subject who is pregnant or lactating. 19. Unwilling or unable to comply with procedures required in this protocol

Design outcomes

Primary

MeasureTime frameDescription
Duration of Severe Neutropenia (DSN)21 DaysDuration of severe neutropenia (ANC \< 0.5 × 109/L)

Secondary

MeasureTime frameDescription
Change in Estimated Mean Bone Pain ScoreDay 1 through 8 in Cycle 1 (each cycle is 21 days)Change in estimated mean bone pain score from pre-dose Day 1 through Day 8. The bone pain scale assessment was based on the validated Wong-Baker Faces® Pain Rating Scale. The pain scale range is from 0 to 10. The severity of pain marked on a scale is from 0 ('no hurt') to 10 ('hurt worst').
Change in Patients With at Least 30% Platelet Count From Baseline in Cycle 1Anytime during Cycle 1 (each cycle is 21 days)Patients with platelet count at least 30% change from baseline at any time during Cycle 1
Proportion of Patients With Thrombocytopenia84 daysProportion of patients with thrombocytopenia (all grade) during 4 cycles
Proportion of Patients With Neutrophil-to-lymphocyte Ratio (NLR) > 515 DaysProportion of patients with neutrophil-to-lymphocyte ratio (NLR) \> 5 from Day 1 through Day 15
Antibiotic Use21 DaysIncidence of antibiotic use
Sepsis84 DaysTo assess the incidence of sepsis
Infections84 DaysIncidence of infections in cycles 1 to 4

Countries

China, Russia, Ukraine, United States

Participant flow

Participants by arm

ArmCount
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching Plinabulin
Arm 1 Pegfilgrastim: PEGFILGRASTIM is a long-acting granulocyte colony-stimulating factor that stimulates the growth of neutrophils, to reduce the incidence of fever and infection in patients with certain types of cancer who are receiving chemotherapy that affects the bone marrow. D5W Placebo: Placebo 250 ml D5W to match the administration of plinabulin diluted in 250 ml D5W
53
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching Pegfilgrastim
Arm 2 Plinabulin: Plinabulin (BPI-2358) is a synthetic, low molecular weight, new chemical entity that belongs to the diketopiperazine class of compounds. Plinabulin is intended for intravenous (IV) infusion and is diluted in D5W and administered for 30 minutes (± 5 minutes). Saline Placebo: Placebo Syringe 0.6 ml Saline to match the 0.6 ml pegfilgrastim administration
52
Total105

Baseline characteristics

CharacteristicDocetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinDocetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
19 Participants12 Participants31 Participants
Age, Categorical
Between 18 and 65 years
34 Participants40 Participants74 Participants
Age, Continuous58.9 years
STANDARD_DEVIATION 10.85
57.0 years
STANDARD_DEVIATION 10.79
58.0 years
STANDARD_DEVIATION 10.81
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
25 Participants25 Participants50 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
28 Participants27 Participants55 Participants
Sex: Female, Male
Female
32 Participants33 Participants65 Participants
Sex: Female, Male
Male
21 Participants19 Participants40 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 532 / 52
other
Total, other adverse events
49 / 5351 / 52
serious
Total, serious adverse events
6 / 538 / 52

Outcome results

Primary

Duration of Severe Neutropenia (DSN)

Duration of severe neutropenia (ANC \< 0.5 × 109/L)

Time frame: 21 Days

ArmMeasureValue (MEAN)
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinDuration of Severe Neutropenia (DSN)0.246 Days
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimDuration of Severe Neutropenia (DSN)0.770 Days
Secondary

Antibiotic Use

Incidence of antibiotic use

Time frame: 21 Days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinAntibiotic Use7 Participants
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimAntibiotic Use8 Participants
Secondary

Change in Estimated Mean Bone Pain Score

Change in estimated mean bone pain score from pre-dose Day 1 through Day 8. The bone pain scale assessment was based on the validated Wong-Baker Faces® Pain Rating Scale. The pain scale range is from 0 to 10. The severity of pain marked on a scale is from 0 ('no hurt') to 10 ('hurt worst').

Time frame: Day 1 through 8 in Cycle 1 (each cycle is 21 days)

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinChange in Estimated Mean Bone Pain Score2.35 Wong-Baker FACES Pain Scale (range:0-10)Standard Error 0.178
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimChange in Estimated Mean Bone Pain Score1.69 Wong-Baker FACES Pain Scale (range:0-10)Standard Error 0.179
Secondary

Change in Patients With at Least 30% Platelet Count From Baseline in Cycle 1

Patients with platelet count at least 30% change from baseline at any time during Cycle 1

Time frame: Anytime during Cycle 1 (each cycle is 21 days)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinChange in Patients With at Least 30% Platelet Count From Baseline in Cycle 141 Participants
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimChange in Patients With at Least 30% Platelet Count From Baseline in Cycle 123 Participants
Secondary

Infections

Incidence of infections in cycles 1 to 4

Time frame: 84 Days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinInfections8 Participants
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimInfections4 Participants
Secondary

Proportion of Patients With Neutrophil-to-lymphocyte Ratio (NLR) > 5

Proportion of patients with neutrophil-to-lymphocyte ratio (NLR) \> 5 from Day 1 through Day 15

Time frame: 15 Days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinProportion of Patients With Neutrophil-to-lymphocyte Ratio (NLR) > 524 Participants
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimProportion of Patients With Neutrophil-to-lymphocyte Ratio (NLR) > 52 Participants
Secondary

Proportion of Patients With Thrombocytopenia

Proportion of patients with thrombocytopenia (all grade) during 4 cycles

Time frame: 84 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinProportion of Patients With Thrombocytopenia19 Participants
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimProportion of Patients With Thrombocytopenia10 Participants
Secondary

Sepsis

To assess the incidence of sepsis

Time frame: 84 Days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Docetaxel (75 mg/m2) + Pegfilgrastim (6 mg) + Placebo Matching PlinabulinSepsis0 Participants
Docetaxel (75 mg/m2) + Plinabulin (40 mg) + Placebo Matching PegfilgrastimSepsis0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026