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TerminatedNCT01146561Updated Mar 23, 2021Results posted

Safety And Efficacy Of Tanezumab In Patients With Chronic Pancreatitis

A Phase 2 interventional study of Tanezumab and Placebo in Chronic Pancreatitis, sponsored by Pfizer. Terminated at 9 sites in United States. Open to participants aged 18 Years to 99 Years. Per ClinicalTrials.gov, last updated 2021-03-23.

Sponsored by Pfizer · Phase 2, Interventional, and Treatment

Why this study was terminated
See termination reason in detailed description.
Phase
Phase 2
Study type
Interventional
Enrollment
2
Allocation
Randomized
Ages
18 Years to 99 Years
Sex
All
01

Study summary

Tanezumab is effective in reducing the pain associated with chronic pancreatitis.

Read the detailed description

On 23 Dec 2010 the FDA imposed a clinical halt for anti-NGF compounds due to safety reasons, ie, a case of osteonecrosis which occurred in relation to an anti-NGF compound of another company. All indications with the exception of Cancer Pain are affected resulting in termination of all studies in respective indications. Recruitment of Study A4091044 was stopped effective 27 Dec 2010. Two patients recruited so far did not receive further doses and were followed up for safety until LSLV on 22 Mar 2011.

02

Conditions studied

  • Chronic Pancreatitis
03

In context

Pancreatitis

752 studies on the registry are indexed under Pancreatitis; 181 are open to participants now.

This study's enrollment of 2 is below the median of 80 across 448 interventional studies indexed under Pancreatitis.

Browse Pancreatitis studies →

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 99 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Adult male or female
  • Written informed consent
  • Diagnosis of chronic pancreatitis based on imaging studies
  • Persistent abdominal pain due to chronic pancreatitis
  • Qualifying pain score during the pre-treatment period
  • Willing to comply with study visit schedule and study requirements including for women of child-bearing potential or male patients with female partners of child-bearing potential, the use of 2 forms of birth control

Exclusion criteria

Exclusion Criteria:

  • Pregnant women, lactating mothers, women suspected of being pregnant and women who wish to become pregnant during the course of the study
  • Chronic pancreatitis as a complication of pancreatic cancer or acute pancreatic duct obstruction
  • Pancreatic surgery, lithotripsy or endoscopist decompression within 3 months
  • History of alcoholism (within 1 year of screening) or concurrent alcohol abuse
  • History of cancer in the past years
  • Significant cardiac disease within 6 months
  • History, diagnosis or signs and symptoms of significant neurologic disease
  • Disqualifying laboratory values including Hepatitis B or C, HIV and drug test
  • Other medical condition that may interfere with study endpoints or safety of the patient as determined by the Investigator
  • Known history of rheumatoid arthritis
  • Avascular necrosis of the bone
  • History of trauma to a major joint Evidence of osteoarthritis
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
2 participants (actual)

Study arms

  • Experimental
    Tanezumab 20 mg

    Biological: Tanezumab

  • Placebo comparator
    Placebo

    Other: Placebo

Interventions

  • BiologicalTanezumab

    single administration of tanezumab 20 mg sub-cutaneously

  • OtherPlacebo

    single administration of placebo to match tanezumab, sub-cutaneously

06

What researchers measure

Primary outcomes

  1. Change From Baseline in Average Chronic Pancreatitis Pain Intensity Score Over the Period From Week 1 to Week 8

    Daily average chronic pancreatitis pain is assessed with an 11-point Numeric Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst possible pain).

    Time frame: Baseline, Week 1 to 8

Secondary outcomes

  1. Change From Baseline in Average and Worst Chronic Pancreatitis Pain Intensity Score at Week 1, 2, 4, 6, 8, 12 and 16

    Daily average chronic pancreatitis pain and worst chronic pancreatitis pain are assessed with an 11-point NRS ranging from 0 (no pain) to 10 (worst possible pain).

    Time frame: Baseline, Week 1, 2, 4, 6, 8, 12, 16

  2. Change From Baseline in Worst Chronic Pancreatitis Pain Intensity Score Over Week 1 to Week 8 Period

    Daily average worst chronic pancreatitis pain is assessed with an 11-point NRS ranging from 0 (no pain) to 10 (worst possible pain).

    Time frame: Baseline, Week 1 to 8

  3. Number of Participants With At Least 30 Percent (%), 50%, 70% and 90% Reduction From Baseline in Average and Worst Chronic Pancreatitis Pain Intensity Score

    Daily average chronic pancreatitis pain and worst chronic pancreatitis pain are assessed with an 11-point NRS ranging from 0 (no pain) to 10 (worst possible pain).

    Time frame: Week 8

  4. Number of Participants With Cumulative Reduction From Baseline in Average and Chronic Pancreatitis Pain Intensity Score

    Daily average chronic pancreatitis pain and worst chronic pancreatitis pain are assessed with an 11-point NRS ranging from 0 (no pain) to 10 (worst possible pain).

    Time frame: Week 8

  5. Change From Baseline in Brief Pain Inventory - Short Form (BPI-sf) Average and Worst Pain Score at Week 8 and 16

    BPI-sf is an 11-item self-report questionnaire that is designed to assess the severity and impact of pain on daily functions. BPI-sf are 4 questions that assess pain intensity (question 5 consists of 7 items that assess level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item was answered on a scale ranging from 0 to 10; '0=No pain and 10=Pain as bad as you can imagine'. Measure were scored by item, with lower scores indicated less pain or pain interference.

    Time frame: Baseline, Week 8, 16

  6. Change From Baseline in Brief Pain Inventory - Short Form (BPI-sf) Pain Interference Index and Pain Interference Score for General Activity, Walking Ability, Sleep and Normal Work at Week 8 and 16

    BPI-sf is an 11-item self-report questionnaire that is designed to assess the severity and impact of pain on daily functions. BPI-sf are 4 questions that assess pain intensity (worst, least, average, right now) and question 5 consisted of 7 items that assess level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item was answered on a scale ranging from 0 to 10; '0=No pain and 10=Pain as bad as you can imagine'. Measure was scored by item, with lower score indicated less pain or pain interference. The 7 items in question 5 were averaged to obtain pain interference index, range: 0 to 10; higher score=greater impairment.

    Time frame: Baseline, Week 8, 16

  7. Change From Baseline in Patient's Global Assessment (PGA) of Chronic Pancreatitis at Week 4, 8 and 16

    Patient's Global Assessment of Chronic Pancreatitis is a global evaluation that utilizes a 5-point Likert scale with a score of 1 being the best (Very Good) and a score of 5 being the worst (Very Poor) for the following question: "Considering all the ways your chronic pancreatitis affects you, how are you doing today?".

    Time frame: Baseline, Week 4, 8, 12

  8. Number of Participants With Improvement of Greater Than or Equal to 2 Points From Baseline in Patient's Global Assessment (PGA) of Chronic Pancreatitis

    Patient's Global Assessment of Chronic Pancreatitis is a global evaluation that utilizes a 5-point Likert scale with a score of 1 being the best (Very Good) and a score of 5 being the worst (Very Poor) for the following question: "Considering all the ways your chronic pancreatitis affects you, how are you doing today?".

    Time frame: Weeks 4, 8, 16

  9. Number of Participants With Anti Drug Antibody

    Time frame: Baseline, Week 8, 16

  10. Neuropathy Impairment Score (NIS)

    NIS: 74-item questionnaire assesses muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment.

    Time frame: Baseline and Weeks 2, 4, 8, 16

  11. Number of Participants With Injection Site Reaction

    Assessment of the injection site reactions were based on presence of erythema (redness), induration (swelling), ecchymosis (bruising), pruritus (itching) and pain that occurred after the injection had been administered (not related to pain of needle insertion).

    Time frame: Day 1 up to Week 16

  12. Plasma Tanezumab Levels

    Time frame: Baseline (pre-dose), Week 2, 4, 8, 16

  13. Serum Nerve Growth Factor (NGF) Levels

    Time frame: Baseline (pre-dose), Week 8, 16

  14. Number of Participants With Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)

    An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience; persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 112 days after last dose that were absent before treatment or that worsened relative to pretreatment state.

    Time frame: Baseline up to 112 days after the dose of study medication (up to 113 days)

  15. Number of Participants With Clinically Significant Laboratory Abnormalities

    Laboratory analysis included blood chemistry, hematology, urinalysis, pregnancy test, glycosylated hemoglobin levels (HbA1c levels) test and blood alcohol test.

    Time frame: Baseline up to Week 16

  16. Number of Participants With Clinically Significant Electrocardiogram (ECG) Abnormalities

    All standard intervals (PR, QRS, QT, QT interval corrected for heart rate using Fridericia's formula \[QTcF\], QT interval corrected for heart rate using Bazett's formula \[QTcB\], RR intervals and heart rate) were analyzed for ECG abnormalities.

    Time frame: Baseline up to Week 16

Other outcomes

  1. Number of Participants With Subcutaneous Doses

    Number of participants who received the single dose of placebo are reported.

    Time frame: Day 1

07

Results

Posted Mar 23, 2021
Limitations and caveats
Due to FDA clinical hold, the study was prematurely terminated with only 2 participants were enrolled and randomized to placebo treatment and hence, efficacy and pharmacokinetic analysis was not performed.

Participant flow

Participant flow — Overall Study
MilestonePlacebo
Started2
Completed0
Not completed2
Withdrew: Withdrawal by subject1
Withdrew: Lost to follow-up1

Outcome measures

PrimaryChange From Baseline in Average Chronic Pancreatitis Pain Intensity Score Over the Period From Week 1 to Week 8

Daily average chronic pancreatitis pain is assessed with an 11-point Numeric Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst possible pain).

Time frame:
Baseline, Week 1 to 8

No measurements were reported for this outcome.

SecondaryChange From Baseline in Average and Worst Chronic Pancreatitis Pain Intensity Score at Week 1, 2, 4, 6, 8, 12 and 16

Daily average chronic pancreatitis pain and worst chronic pancreatitis pain are assessed with an 11-point NRS ranging from 0 (no pain) to 10 (worst possible pain).

Time frame:
Baseline, Week 1, 2, 4, 6, 8, 12, 16

No measurements were reported for this outcome.

SecondaryChange From Baseline in Worst Chronic Pancreatitis Pain Intensity Score Over Week 1 to Week 8 Period

Daily average worst chronic pancreatitis pain is assessed with an 11-point NRS ranging from 0 (no pain) to 10 (worst possible pain).

Time frame:
Baseline, Week 1 to 8

No measurements were reported for this outcome.

SecondaryNumber of Participants With At Least 30 Percent (%), 50%, 70% and 90% Reduction From Baseline in Average and Worst Chronic Pancreatitis Pain Intensity Score

Daily average chronic pancreatitis pain and worst chronic pancreatitis pain are assessed with an 11-point NRS ranging from 0 (no pain) to 10 (worst possible pain).

Time frame:
Week 8

No measurements were reported for this outcome.

SecondaryNumber of Participants With Cumulative Reduction From Baseline in Average and Chronic Pancreatitis Pain Intensity Score

Daily average chronic pancreatitis pain and worst chronic pancreatitis pain are assessed with an 11-point NRS ranging from 0 (no pain) to 10 (worst possible pain).

Time frame:
Week 8

No measurements were reported for this outcome.

SecondaryChange From Baseline in Brief Pain Inventory - Short Form (BPI-sf) Average and Worst Pain Score at Week 8 and 16

BPI-sf is an 11-item self-report questionnaire that is designed to assess the severity and impact of pain on daily functions. BPI-sf are 4 questions that assess pain intensity (question 5 consists of 7 items that assess level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item was answered on a scale ranging from 0 to 10; '0=No pain and 10=Pain as bad as you can imagine'. Measure were scored by item, with lower scores indicated less pain or pain interference.

Time frame:
Baseline, Week 8, 16

No measurements were reported for this outcome.

SecondaryChange From Baseline in Brief Pain Inventory - Short Form (BPI-sf) Pain Interference Index and Pain Interference Score for General Activity, Walking Ability, Sleep and Normal Work at Week 8 and 16

BPI-sf is an 11-item self-report questionnaire that is designed to assess the severity and impact of pain on daily functions. BPI-sf are 4 questions that assess pain intensity (worst, least, average, right now) and question 5 consisted of 7 items that assess level of interference of pain on daily functions (general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life). Each item was answered on a scale ranging from 0 to 10; '0=No pain and 10=Pain as bad as you can imagine'. Measure was scored by item, with lower score indicated less pain or pain interference. The 7 items in question 5 were averaged to obtain pain interference index, range: 0 to 10; higher score=greater impairment.

Time frame:
Baseline, Week 8, 16

No measurements were reported for this outcome.

SecondaryChange From Baseline in Patient's Global Assessment (PGA) of Chronic Pancreatitis at Week 4, 8 and 16

Patient's Global Assessment of Chronic Pancreatitis is a global evaluation that utilizes a 5-point Likert scale with a score of 1 being the best (Very Good) and a score of 5 being the worst (Very Poor) for the following question: "Considering all the ways your chronic pancreatitis affects you, how are you doing today?".

Time frame:
Baseline, Week 4, 8, 12

No measurements were reported for this outcome.

SecondaryNumber of Participants With Improvement of Greater Than or Equal to 2 Points From Baseline in Patient's Global Assessment (PGA) of Chronic Pancreatitis

Patient's Global Assessment of Chronic Pancreatitis is a global evaluation that utilizes a 5-point Likert scale with a score of 1 being the best (Very Good) and a score of 5 being the worst (Very Poor) for the following question: "Considering all the ways your chronic pancreatitis affects you, how are you doing today?".

Time frame:
Weeks 4, 8, 16

No measurements were reported for this outcome.

SecondaryNumber of Participants With Anti Drug Antibody
Time frame:
Baseline, Week 8, 16

No measurements were reported for this outcome.

SecondaryNeuropathy Impairment Score (NIS)

NIS: 74-item questionnaire assesses muscle weakness, reflexes and sensation; scored separately for left, right limbs (37 items for each side). Components of muscle weakness (hip and knee flexion, hip and knee extension, ankle dorsiflexors, ankle plantar flexors, toe extensors, toe flexors) scored on scale 0 (normal) to 4 (paralysis), higher score=greater weakness. Components of reflexes (quadriceps femoris, triceps surae) and sensation (touch pressure, pin-prick, vibration, joint position) scored 0 = normal, 1= decreased, or 2 = absent. Total possible NIS score range 0-244, higher score=greater impairment.

Time frame:
Baseline and Weeks 2, 4, 8, 16

No measurements were reported for this outcome.

SecondaryNumber of Participants With Injection Site Reaction

Assessment of the injection site reactions were based on presence of erythema (redness), induration (swelling), ecchymosis (bruising), pruritus (itching) and pain that occurred after the injection had been administered (not related to pain of needle insertion).

Time frame:
Day 1 up to Week 16
Reported as:
Count of participants · Participants
Number of Participants With Injection Site Reaction
ParticipantsPlacebo
Number of Participants With Injection Site Reaction1
SecondaryPlasma Tanezumab Levels
Time frame:
Baseline (pre-dose), Week 2, 4, 8, 16

No measurements were reported for this outcome.

SecondarySerum Nerve Growth Factor (NGF) Levels
Time frame:
Baseline (pre-dose), Week 8, 16

No measurements were reported for this outcome.

SecondaryNumber of Participants With Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience; persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 112 days after last dose that were absent before treatment or that worsened relative to pretreatment state.

Time frame:
Baseline up to 112 days after the dose of study medication (up to 113 days)
Reported as:
Count of participants · Participants
Number of Participants With Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
ParticipantsPlacebo
AEs2
SAEs0
SecondaryNumber of Participants With Clinically Significant Laboratory Abnormalities

Laboratory analysis included blood chemistry, hematology, urinalysis, pregnancy test, glycosylated hemoglobin levels (HbA1c levels) test and blood alcohol test.

Time frame:
Baseline up to Week 16
Reported as:
Count of participants · Participants
Number of Participants With Clinically Significant Laboratory Abnormalities
ParticipantsPlacebo
Number of Participants With Clinically Significant Laboratory Abnormalities0
SecondaryNumber of Participants With Clinically Significant Electrocardiogram (ECG) Abnormalities

All standard intervals (PR, QRS, QT, QT interval corrected for heart rate using Fridericia's formula \[QTcF\], QT interval corrected for heart rate using Bazett's formula \[QTcB\], RR intervals and heart rate) were analyzed for ECG abnormalities.

Time frame:
Baseline up to Week 16
Reported as:
Count of participants · Participants
Number of Participants With Clinically Significant Electrocardiogram (ECG) Abnormalities
ParticipantsPlacebo
Number of Participants With Clinically Significant Electrocardiogram (ECG) Abnormalities0
Other pre-specifiedNumber of Participants With Subcutaneous Doses

Number of participants who received the single dose of placebo are reported.

Time frame:
Day 1
Reported as:
Count of participants · Participants
Number of Participants With Subcutaneous Doses
ParticipantsPlacebo
Number of Participants With Subcutaneous Doses2

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo—0/2 (0%)2/2 (100%)
Most frequent other events
Most frequent other events
EventPlacebo
Injection site reactionGeneral disorders1/2
PainGeneral disorders1/2
NasopharyngitisInfections and infestations1/2
DizzinessNervous system disorders1/2

Baseline characteristics

Age, Customized
Age, Customized(Participants)Placebo
18 to 44 years1
45 to 64 years1
Sex: Female, Male
Sex: Female, Male(Participants)Placebo
Female2
Male0
08

Study locations

9 sites
  • Gastroenterology Group-of Naples
    Naples, Florida 34102-5449, United States
  • Palm Beach Gastroenterology
    Wellington, Florida 33414, United States
  • Digestive Health Specialists
    Tupelo, Mississippi 38801, United States
  • North Mississippi Medical Center
    Tupelo, Mississippi 38801, United States
  • Carolinas Digestive Health Associates
    Harrisburg, North Carolina 28075, United States
  • Carolinas Digestive Health Associates
    Harrisburg, North Carolina 28705, United States
  • UMPC Division of Radiology
    Pittsburgh, Pennsylvania 15213, United States
  • University of Pittsburgh Medical Center
    Pittsburgh, Pennsylvania 15213, United States
  • Wisconsin Center for Advanced Research
    Milwaukee, Wisconsin 53215, United States
09

References and documents

Individual participant data

Plan to share: Yes — Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 23, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01146561
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Jun 17, 2010
Start date
Oct 13, 2010
Primary completion
Mar 22, 2011
Completion
Mar 22, 2011
Results posted
Mar 23, 2021
Last update
Mar 23, 2021

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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