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Solid TumorsPhase 1NCT00658658

Panitumumab in Children With Solid Tumors

A Phase 1 study testing Panitumumab in people with Solid Tumors, run by Amgen at 11 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective of this study was to evaluate the safety and pharmacokinetics of up to 3 different dose schedules of panitumumab in pediatric patients with solid tumors. Read more about this study

Who is it for?
Ages 1 year to 17 years
Conditions the study is for
Solid Tumors
What is being tested?
Panitumumab
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
31 participants
Where
11 sitesUnited States
Study dates
Mar 2008to Mar 2015
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 1 year to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Parents or legal guardian signed-written informed consent
  • 1 to < 18 years of age
  • Histologically or cytologically confirmed solid tumor that has recurred after standard therapy, or for which there is no standard therapy. Subjects with brainstem glioma DO NOT need histologic proof of the diagnosis.
  • Paraffin-embedded tumor tissue from primary tumor or metastasis for determination of epidermal growth factor receptor expression and biomarker testing
  • Central nervous system tumors are allowed
  • Presence of measurable or non-measurable disease.
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  • Life expectancy of ≥ 12 weeks.
  • Performance status: Karnofsky ≥ 60% for 12 to <18 years of age; Lansky play scale ≥ 60% for 1 to < 12 years of age.
  • Adequate hematologic function.
  • Adequate renal function.
  • Adequate hepatic function.
  • Magnesium ≥ lower limit of normal (LLN)
  • Adequate pulmonary function
  • All previous therapy-related toxicities must have resolved or return to baseline.

Who cannot join

  • Diagnosis of leukemia, non-Hodgkin's lymphoma, Hodgkin's disease or other hematologic malignancy.
  • Any prior allogeneic transplant.
  • Prior autologous bone marrow or peripheral stem cell transplant less than 3 months prior to enrollment.
  • Substantial radiotherapy to the bone marrow within 6 weeks prior to enrollment.
  • Prior use of any monoclonal antibodies directly targeting the epidermal growth factor receptor (EGFr). Subjects who have received prior tyrosine kinase inhibitors such as gefitinib or erlotinib are eligible.
  • Immunotherapy, radiotherapy, or chemotherapy ≤ 2 weeks prior to enrollment. (≤ 6 weeks for nitrosoureas, mitomycin-C, and liposomal doxorubicin, and ≤ 6 weeks from prior antibody therapy).
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  • Requirement to receive concurrent chemotherapy, immunotherapy, radiotherapy (except for pain control) or any other investigational drug while on this study.
  • Prior seizures < 3 months prior to enrollment. Subjects with a history of seizure disorders ≥ 3 months prior to enrollment must be seizure free and on stable anticonvulsant medication(s) for ≥ 3 months prior to enrollment).
  • Presence of a serious uncontrolled medical disorder.
  • Dementia, altered mental status, or any other medical condition or disorder that would prohibit the understanding or rendering of assent (if applicable), or ability to comply with study procedures.
  • Major surgery ≤ 28 days prior to enrollment.
  • Known or suspected history of interstitial lung disease.
  • Active inflammatory bowel disease or other bowel disease causing chronic diarrhea.
  • Known positive test for human immunodeficiency virus infection, hepatitis C virus, acute or chronic hepatitis B infection, or any co-morbid disease that would increase risk of toxicity.
  • Females of childbearing potential not using adequate contraception precautions for the duration of the study treatment and for 2 months after the last administration of investigational product.
  • Pregnant or breast-feeding, or planning to become pregnant during study treatment and within 2 months after the last administration of investigational product.
  • Received investigational therapy or procedure ≤ 30 days prior to enrollment.

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

United States11 sites
  • Research Site

    Chicago, Illinois, 60611

  • Research Site

    Cleveland, Ohio, 44106

  • Research Site

    Houston, Texas, 77030

  • Research Site

    Kansas City, Missouri, 64108

  • Research Site

    Los Angeles, California, 90027

  • Research Site

    Minneapolis, Minnesota, 55455

  • Research Site

    Nashville, Tennessee, 37232

  • Research Site

    New York, New York, 10021

  • Research Site

    Portland, Oregon, 97239-3098

  • Research Site

    San Francisco, California, 94143

  • Research Site

    Washington D.C., District of Columbia, 20010

Other trials in United States

About this study

Official title: A Phase 1 Study to Evaluate the Safety and Pharmacokinetics of Panitumumab in Children With Solid Tumors

The primary objective of this study was to evaluate the safety and pharmacokinetics of up to 3 different dose schedules of panitumumab in pediatric patients with solid tumors.

Read the detailed description

This is an open-label, multi-center, single arm, dose-ranging, clinical study. Panitumumab will be administered by intravenous infusion to 4-6 patients per cohort. Three planned cohorts, stratified by age, will be studied at 100% of the recommended panitumumab dose for each treatment schedule as defined in adults. Enrollment will start with a 2.5 mg/kg once weekly administration to the 12 to < 18 year old patients. Upon demonstration of sufficient safety additional cohorts will open; a 2.5 mg/kg once weekly administration to the 1 to < 12 year old patients and a 6.0 mg/kg once every two weeks to the 12 to < 18 year old patients. The decision to advance to the next cohort will be based on observance of ≤ 33% incidence of a dose limiting toxicity during the evaluation period. Subsequent cohorts of 6.0 mg/kg once every two weeks to the 1 to < 12 year old patients and 9.0 mg/kg once every three weeks to both age groups will open once sufficient safety in each cohort is determined. Participants may stay on study treatment until disease progression.

Conditions
Solid Tumors
Being tested
Panitumumab
Keywords
Epidermal Growth Factor, Pediatric, Solid Tumors, Panitumumab, Dose Limiting Toxicity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PanitumumabBiological

    Also called Vectibix

    Panitumumab administered by intravenous infusion

Study groups in NCT00658658
Study groupRoleWhat they receive
PanitumumabExperimentalParticipants received panitumumab at planned doses ranging from 2.5 mg/kg weekly (QW) to 9.0 mg/kg every 3 weeks (Q3W) until the patient experienced disease progression, was unable to tolerate study drug, withdrew consent, or other reasons that warranted removal from the study.
Receives: Biological: Panitumumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Dose-limiting Toxicities (DLTs)

    Any panitumumab related grade 3 or 4 hematologic or non-hematologic toxicity (graded according to the modified Common Terminology Criteria for Adverse Events (CTCAE) version 3.0 criteria) was considered a DLT with the exception of alopecia and fatigue. Hypomagnesemia, nausea, diarrhea, vomiting, and skin or nail toxicities constituted a DLT only of the following occured: • Grade 3 or 4 hypomagnesemia that persisted for at least 5 days despite maximal magnesium replacement; • Grade 3 or 4 diarrhea, nausea, or vomiting that persisted for at least 5 days despite maximum supportive therapy; • Grade 4 skin or nail toxicity.

    Measured: 28 days from initial administration of panitumumab for the 2.5 and 6 mg/kg cohorts and 21 days from first administration for the 9 mg/kg cohort.

  2. Number of Participants With Adverse Events (AEs)

    A serious adverse event is defined as an AE that: • is fatal; • is life threatening; • requires in-patient hospitalization or prolongation of existing hospitalization; • results in persistent or significant disability/incapacity; • is a congenital anomaly/birth defect; • other significant medical hazard. The investigator assessed whether adverse events were related to panitumumab. The severity of adverse events was based on CTCAE version 3 (with the exception of skin- or nail-related toxicities which were graded using the CTCAE version 3.0 with modifications), according to the following: Grade 1 = Mild (aware of sign or symptom, but easily tolerated); Grade 2 = Moderate (discomfort enough to cause interference with usual activity); Grade 3 = Severe (incapacitating with inability to work or do usual activity); Grade 4 = Life-threatening or disabling; Grade 5 = Fatal.

    Measured: From first dose date to end of study date. The median duration of study was 47 days.

  3. Maximum Observed Concentration (Cmax) of Panitumumab

    Panitumumab serum concentration was measured using an enzyme-linked immunosorbent assay (ELISA). The lower limit of quantification (LLOQ) of the assay was 400 pg/mL. Concentrations below the LLOQ were set to zero.

    Measured: First dose (Day 1) and third dose (Day 15/29/43 for the QW, Q2W and Q3W cohorts respectively). Samples were collected over the dosing interval for each treatment cohort (7, 14 or 21 days for QW, Q2W and Q3W cohorts respectively).

  4. Minimum Observed Concentration (Cmin) of Panitumumab

    Measured: First dose (Day 1) and third dose (Day 15/29/43 for the QW, Q2W and Q3W cohorts respectively). Samples were collected over the dosing interval for each treatment cohort (7, 14 or 21 days for QW, Q2W and Q3W cohorts respectively).

  5. Area Under the Concentration-time Curve During the Dosing Interval (AUC0-tau) for Panitumumab

    The area under the serum concentration-time curve from time zero to the end of the dosing interval (AUCtau), estimated using the linear trapezoidal method.

    Measured: First dose (Day 1) and third dose (Day 15/29/43 for the QW, Q2W and Q3W cohorts respectively). Samples were collected over the dosing interval for each treatment cohort (7, 14 or 21 days for QW, Q2W and Q3W cohorts respectively).

  6. Half-life (t1/2) for the Terminal Phase (First Dose) or Dosing Interval (Third Dose) of Panitumumab

    Measured: First dose (Day 1) and third dose (Day 15/29/43 for the QW, Q2W and Q3W cohorts respectively). Samples were collected over the dosing interval for each treatment cohort (7, 14 or 21 days for QW, Q2W and Q3W cohorts respectively).

  7. Serum Clearance (CL) of Panitumumab

    Measured: First dose (Day 1) and third dose (Day 15/29/43 for the QW, Q2W and Q3W cohorts respectively). Samples were collected over the dosing interval for each treatment cohort (7, 14 or 21 days for QW, Q2W and Q3W cohorts respectively).

Secondary outcomes (3)
  1. Number of Participants Who Developed Antibodies to Panitumumab

    Three validated assays were used to detect the presence of anti-panitumumab antibodies. Two screening immunoassays, an acid-dissociation enzyme-linked immunosorbent assay (ELISA) and a Biacore-based biosensor assay, were used to detect antibodies capable of binding to panitumumab. All samples confirmed to be positive by drug specificity in either screening immunoassay were further tested for neutralizing antibodies in a cell-based epidermal growth factor receptor (EGFR) phosphorylation bioassay. The number of participants who developed antibodies to panitumumab is the number of participants with a non-positive (including missing) antibody result at baseline and a positive antibody result at any post-baseline time point.

    Measured: Before panitumumab administration on Day 1, Day 43, Day 169 and 30 days after last dose for all cohorts.

  2. Percentage of Participants With an Objective Response

    Disease assessments were based on investigator review of scans using modified Response Evaluation Criteria in Solid Tumors (RECIST) version 1.0 criteria. A participant was considered a responder if their best response was either a complete or partial response. Participants without a post-baseline assessment were considered non-responders. A complete or partial response was confirmed no less than 4-weeks after the criteria for response were first met. Complete Response (CR): Disappearance of all target and non-target lesions, normalization of tumor markers and no new lesions. Partial Response (PR): At least a 30% decrease in the size of target lesions, no progression of non-target lesions and no new lesions, or, the disappearance of all target lesions, persistence of one or more non-target lesion(s) not qualifying for either CR or progressive disease (PD) or/and maintenance of tumor marker level above normal limits, and no new lesions.

    Measured: Tumor response was assessed every 8 weeks through week 48 and every 3 months thereafter until disease progression or end of study. The data cut-off for the analysis was 17 June 2015; median duration of study was 47 days.

  3. Percentage of Participants With Disease Control

    Disease assessments were based on investigator review of scans using modified RECIST version 1.0 criteria. A participant was considered to have disease control if their best response is either a complete or partial response, or stable disease. Participants without a post-baseline assessment were considered to not have disease control. A complete or partial response was confirmed no less than 4-weeks after the criteria for response were first met. A best overall response of SD requires a visit response of SD or better, no earlier than 49 days after the date of enrollment.

    Stable disease (SD): Neither sufficient shrinkage of target lesions to qualify for a PR nor sufficient increase to qualify for PD and no progression of existing non-target lesions and no new lesions.

    Measured: Tumor response was assessed every 8 weeks through week 48 and every 3 months thereafter until disease progression or end of study. The data cut-off for the analysis was 17 June 2015; median duration of study was 47 days.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Apr 2008 (estimated)
  2. Study startMar 2008
  3. Primary completionMar 2015
  4. Study completionMar 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00658658
Sponsor's protocol ID
20050252
Other IDs
2014-005190-36, 2014
Status last verified
Apr 2016
First submitted
10 Apr 2008
Last updated
18 May 2016
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Panitumumab in people with Solid Tumors, run by Amgen at 11 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 14 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 May 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 May 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Dose-limiting Toxicities (DLTs) (time frame: 28 days from initial administration of panitumumab for the 2.5 and 6 mg/kg cohorts and 21 days from first administration for the 9 mg/kg cohort.). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 May 2016.

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