Average low back pain was assessed on an 11-point numeric rating scale (NRS) captured through an interactive response technology (IRT). Participants described their average low back pain during the past 24 hours on a scale ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicated higher pain.

ITT population:randomized participants who received at least 1 dose of SC study medication(either tanezumab or matching placebo).Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

The RMDQ is a self-administered, widely used health status measure index of how well participants with low back pain (LBP) are able to function with regard to daily activities. It measures pain and function, using 24 items describing limitations to everyday life that can be caused by LBP. The total score of the RMDQ from the total number of items checked ranged from 0 (no disability) to 24 (maximum disability), where higher scores indicated greater disability.

ITT population:randomized participants who received at least 1 dose of SC study medication(either tanezumab or matching placebo).Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

Average LBP was assessed on an 11-point NRS captured through an IRT. Participants described their average LBP during the past 24 hours on a scale ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicated higher pain.

ITT population:randomized participants who received at least 1 dose of SC study medication(either tanezumab or matching placebo).Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

Average LBP was assessed on an 11-point NRS captured through an IRT. The LBPI score was captured once daily from baseline up to week 16, and once weekly from week 16 to week 64. Participants described their average LBP during the past 24 hours on a scale ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicated higher pain. Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

Average LBP was assessed on an 11-point NRS captured through an IRT. The LBPI score was captured once a week for week 64. Participants described their average LBP during the past 24 hours on a scale ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicated higher pain.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). 'Number analyzed' (n)= participants evaluable for this outcome measure (OM) at specified time point.

The RMDQ is a self-administered, widely used health status measure index of how well participants with LBP are able to function with regard to daily activities. It measures pain and function, using 24 items describing limitations to everyday life that can be caused by LBP. The total score of the RMDQ is the total number of items checked ranging from 0 (no disability) to 24 (maximum disability), where higher scores indicated greater disability. Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

The RMDQ is a self-administered, widely used health status measure index of how well participants with LBP are able to function with regard to daily activities. It measures pain and function, using 24 items describing limitations to everyday life that can be caused by LBP. The total score of the RMDQ is the total number of items checked ranging from 0 (no disability) to 24 (maximum disability), where higher scores indicated greater disability.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'number analyzed' = participants evaluable for this outcome measure at specified time points.

PGA of LBP was assessed by asking a question to participants: "Considering all the ways your low back pain affects you, how are you doing today?" Participants responded on a 5 point Likert scale ranging from 1-5, using IRT, where 1=very good (asymptomatic and no limitation of normal activities); 2=good (mild symptoms and no limitation of normal activities); 3=fair (moderate symptoms and limitation of some normal activities); 4=poor (severe symptoms and inability to carry out most normal activities); and 5=very poor (very severe symptoms which are intolerable and inability to carry out all normal activities). Higher scores indicated worsening of condition. Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

PGA of LBP was assessed by asking a question to participants: "Considering all the ways your low back pain affects you, how are you doing today?" Participants responded on a 5 point Likert scale ranging from 1-5, using IRT, where 1=very good (asymptomatic and no limitation of normal activities); 2=good (mild symptoms and no limitation of normal activities); 3=fair (moderate symptoms and limitation of some normal activities); 4=poor (severe symptoms and inability to carry out most normal activities); and 5=very poor (very severe symptoms which are intolerable and inability to carry out all normal activities). Higher scores indicated worsening of condition.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'Number analyzed' = participants evaluable for this outcome measure at specified time point.

Average LBP was assessed on an 11-point NRS captured through an IRT. LBPI score was captured once a week for week 64. Participants described their average LBP during the past 24 hours on a scale ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicated higher pain.Percentage of participants with cumulative reduction (as percent) (greater than [>] 0%; >= 10, 20, 30, 40, 50, 60, 70, 80, 90 and equals to [=] 100 %) in LBPI from baseline to weeks 16, 24 and 56 were reported, participants (%) are reported more than once in categories specified.Missing data was imputed using mixed BOCF/LOCF.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.Also, intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16. Overall Number of Participants analyzed(N)=participants evaluable for this outcome measure (OM).

Average LBP was assessed on an 11-point NRS captured through an IRT. The LBPI score was captured once a week for week 64. Participants described their average LBP during the past 24 hours on a scale ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicated higher pain. Percentage of participants with reduction in LBPI of at least (>=) 30%, 50%, 70% and 90% at weeks 2, 4, 8, 12, 16, 24, 32, 40, 48 and 56 compared to baseline were classified as responders to LBPI and are reported here, participants (%) are reported more than once in categories specified.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.Also, intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16. N=participants evaluable for this OM.

RMDQ: health status measure index of how well participants with LBP are able to function with regard to daily activities. Measures pain and function using 24 items describing limitations to everyday life. Total score of RMDQ is total number of items checked ranging from 0=no disability to 24=maximum disability, higher scores=greater disability. Percentage of participants with reduction in LBPI of at least (>=) 30, 50, 70 and 90% at specified weeks compared to baseline were classified as responders to LBPI and are reported here. Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms. Also, intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16. N =participants evaluable for this OM.

The RMDQ is a self-administered, widely used health status measure index of how well participants with LBP are able to function with regard to daily activities. It measures pain and function, using 24 items describing limitations to everyday life that can be caused by LBP. The total score of the RMDQ is the total number of items checked ranging from 0 (no disability) to 24 (maximum disability), where higher scores indicated greater disability. Percentage of participants with cumulative reduction (as percent) (>0 %; >= 10 %, 20 %, 30 %, 40 %, 50 %, 60 %, 70 %, 80 %, 90% and =100 %) in RMDQ from Baseline to weeks 16, 24 and 56 were reported, participants (%) are reported more than once in categories specified.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this OM,as those who met criteria to continue,switched to active treatment with tanezumab(tan) after W16.N=participants evaluable for this OM.Intent of study was to compare tan V placebo for data up to & including W16 & comparisons of tan Vs tramadol for data up to & including W56.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4 of pain at its 'worst', 'least', 'average' and 'right now'. For the Worst Pain item of the BPI-sf scale (11 point NRS scale; range: 0 [no pain] to 10 [pain as bad as you can imagine]), participants were asked to rate their pain by marking an "X" in one of the boxes that best described their pain at its worst, during 24 hours prior to evaluation, higher scores indicated greater pain severity. Question 5 (7-items) assessed level of pain interference on daily activities.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4 of pain at its 'worst', 'least', 'average' and 'right now'. For the Worst Pain item of the BPI-sf scale (11 point NRS scale; range: 0 [no pain] to 10 [pain as bad as you can imagine]), participants were asked to rate their pain by marking an "X" in one of the boxes that best described their pain at its worst, during 24 hours prior to evaluation, higher scores indicated greater pain severity. Question 5 (7-items) assessed level of pain interference on daily activities.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = participants evaluable for this OM at specified time points.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4 of pain at its 'worst', 'least', 'average' and 'right now'. For the Average Pain item of the BPI-sf scale (11 point NRS scale; range: 0 [no pain] to 10 [pain as bad as you can imagine]), participants were asked to rate their pain by marking an "X" in one of the boxes that best described their pain during 24 hours prior to evaluation, higher scores indicated greater pain severity. Question 5 (7-items) assessed level of pain interference on daily activities.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4 of pain at its 'worst', 'least', 'average' and 'right now'. For the Average Pain item of the BPI-sf scale (11 point NRS scale; range: 0 [no pain] to 10 [pain as bad as you can imagine]), participants were asked to rate their pain by marking an "X" in one of the boxes that best described their pain during 24 hours prior to evaluation, higher scores indicated greater pain severity. Question 5 (7-items) assessed level of pain interference on daily activities.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'number analyzed' = participants evaluable for this OM at specified time point.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = participants evaluable for this OM at specified time point.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = participants evaluable for this OM at specified time point.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = participants evaluable for this OM at specified time point.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = participants evaluable for this OM at specified time point.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

BPI-sf is a self-administered questionnaire developed to assess the severity of pain and pain interference on daily functions during 24 hours prior to evaluation. Severity of pain was measured based on questions 1 to 4. Question 5 (7-items) assessed level of pain interference on daily activities. Pain interference index was calculated as the mean of the seven BPI-sf pain interference items (question 5a to g), being pain interference with general activity; mood; walking ability; normal work (outside home and housework); relations with other people; sleep and enjoyment of life. Responses were given on an 11-point NRS with score ranging from 0 (does not interfere) to 10 (completely interferes), lower scores indicated less pain or pain interference.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = participants evaluable for this OM at specified time point.

Chronic Low Back Pain Responder Index analysis is a composite endpoint of average low back pain intensity (aLBPI) score, PGA of Low Back Pain, and RMDQ total score. Participants were successful responders if they had: >=30 percent reduction in mean daily average LBPI from baseline to particular week; decrease of >=30 percent in PGA of low back pain from baseline to particular week or no worsening (increase) in RMDQ total score from baseline to particular week. Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms. Also, intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16. N =participants evaluable for this OM.

PGA of LBP assessed by asking question to participants:Considering all ways your low back pain affects you,how are you doing today? They responded on 5 point Likert scale ranging from 1-5, using IRT, where 1=very good (asymptomatic & no limitation of normal activities);2=good (mild symptoms and no limitation of normal activities);3=fair (moderate symptoms and limitation of some normal activities);4=poor (severe symptoms & inability to carry out most normal activities); & 5=very poor (very severe symptoms which are intolerable and inability to carry out all normal activities). Higher scores indicated worsening of condition. % of participants with improvement of at least 2 points from baseline in PGA of LBP were reported. Missing data was imputed using BOCF/LOCF. Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this OM, as those who met criteria to continue, switched to active treatment with tan after W16. N =participants evaluable for this OM. intent of study was to compare tan Vs placebo for data up to & including W16 & comparisons of tan Vs tramadol for data up to & including W56.

EQ-5D-5L is a standardized participant completed questionnaire that measures health-related quality of life and translates that score into an index value or utility score. EQ-5D-5L consists of two components: a health state profile and an optional visual analogue scale (VAS). EQ-5D health state profile is comprised of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Individual dimension scores ranged from 1.0 (least impairment of health state) to 5.0 (most impairment of health state). Each dimension has 5 levels: 1=no problems, 2=slight problems, 3=moderate problems, 4=severe problems, and 5=extreme problems. The health utility score for a participant with no problems in all 5 items is 1 for all countries (except for Zimbabwe where it is 0.9), and is reduced where a participant reports greater levels of problems across the five dimensions.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = Participants evaluable for this OM for specified categories.

EQ-5D-5L: standardized participant completed questionnaire that measures health-related quality of life and translates that score into an index value or utility score.EQ-5D-5L consists of 2 components: a health state profile and an optional VAS.EQ-5D health state profile comprises of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.Individual dimension scores ranged from 1.0(least impairment of health state) to 5.0(most impairment of health state). Each dimension has 5 levels: 1=no problems, 2=slight problems, 3=moderate problems, 4=severe problems, and 5=extreme problems.Responses from five domains were used to calculate a single utility index (Overall health utility score) where values are less than equal to (<=) 1.Overall health utility score for a participant with no problems in all 5 items is 1 for all countries (except for Zimbabwe where it is 0.9), and reduced where participant reports greater levels of problems across five dimensions.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = Participants evaluable for this OM at specified time points.

WPAI: LBP is 6-question participant rated questionnaire that measures the effect of participant's chronic low back pain (CLBP) on general health and symptom severity on work productivity and regular activities. It yields 4 sub-scores: work time missed due to pain (absenteeism), impairment while working (presenteeism), overall work impairment (work productivity) and activity impairment (daily activity impairment). These sub-scores are expressed as an impairment percentage (range from 0 to 100), with higher numbers indicating greater impairment and less productivity. Pre-specified intent of study for efficacy data up to Week 16 was to analyze, participants who received placebo from Day 1 and received tanezumab 5/10 mg at week 16 in placebo arm, in pooled manner. Hence data have been reported per four arms.

ITT population was analyzed.'n' = Participants evaluable for this OM for specified categories. Pre-specified intent of study was w compare tanezumab Vs placebo for data up to and including week 16 and comparisons of tanezumab Vs tramadol for data up to and including week 56. Number analyzed is 0 for placebo arm for week 16 and onwards.

WPAI: LBP is 6-question participant rated questionnaire that measures the effect of participant's chronic low back pain (CLBP) on general health and symptom severity on work productivity and regular activities. It yields 4 sub-scores: work time missed due to pain (absenteeism), impairment while working (presenteeism), overall work impairment (work productivity) and activity impairment (daily activity impairment). These sub-scores are expressed as an impairment percentage (range from 0 to 100), with higher numbers indicating greater impairment and less productivity. Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population.Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

Number of participants who withdrew from treatment due to lack of efficacy have been reported here.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo).

Time to discontinuation due to lack of efficacy was defined as the time interval from the date of first study drug administration up to the date of discontinuation of participant from treatment due to lack of efficacy.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo).

In case of inadequate pain relief, acetaminophen/paracetamol caplets, tablets, or capsules up to 3000 mg per day up to 3 days in a week could be taken as rescue medication between day 1 and week 56. Number of participants with any use of rescue medication during the particular study week were summarized. As pre specified intent of study, for analyses after week 16 where multiple imputation was used, data was reported per 3 arms. This is because participants who received placebo from Day 1 and received tanezumab 5/10 mg at week 16, received placebo for the first 16 weeks, and their data before week 16 were not be imputed into analyses after week 16.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here,"N"=participants evaluable for this OM and "n" participants evaluable for OM at specified time points.

In case of inadequate pain relief, after Week 24, acetaminophen/paracetamol up to 4000 mg per day up to 5 days in a week could be taken as rescue medication and use was reported weekly via diary. Number of participants with any use of rescue medication during the 4 weeks up to and including the particular study week were summarized.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'Overall number of participants analyzed' signifies participants who were evaluable for this outcome measure.

In case of inadequate pain relief, acetaminophen/paracetamol caplets, tablets, or capsules up to 3000 mg per day up to 3 days in a week could be taken as rescue medication between day 1 and week 56. Number of days the participants used the rescue medication during the particular study weeks were summarized. As pre specified intent of study, for analyses after week 16 where multiple imputation was used, data was reported per 3 arms. This is because participants who received placebo from Day 1 and received tanezumab 5/10 mg at week 16, received placebo for the first 16 weeks, and their data before week 16 were not be imputed into analyses after week 16.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'Overall number of participants analyzed' signifies participants who were evaluable for this outcome measure.

In case of inadequate pain relief, acetaminophen/paracetamol caplets, tablets, or capsules up to 3000 mg per day up to 3 days in a week could be taken as rescue medication between day 1 and week 56. Number of days per week the participants used the rescue medication during the 4 weeks up to and including the particular study week were summarized.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'Overall number of participants analyzed' signifies participants who took rescue medication.

In case of inadequate pain relief, acetaminophen/paracetamol caplets, tablets, or capsules up to 3000 mg per day up to 3 days in a week could be taken as rescue medication between day 1 and week 56. The total dosage of acetaminophen in milligrams used during the specified week were summarized. Pre-specified intent of study for efficacy data up to W16 was to analyze participants who received placebo from Day1 and then received tanezumab 5/10 mg at W16,together,in placebo arm.Data has been reported per four arms.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo).

Low back pain HCRU assessed utilization of healthcare resources usage during last 3 months (for Baseline during the last 3 months for baseline, weeks 64 and 80, via IRT). Visits of services directly related to low back pain evaluated were: visits to primary care physician, neurologist, rheumatologist, physician assistant or nurse practitioner, pain specialist, orthopedist, physical therapist, chiropractor, alternative medicine or therapy, podiatrist, nutritionist/dietitian, radiologist, home healthcare services and other practitioner. Participants might have been counted more than once under various categories.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = Participants evaluable for this OM for specified categories.

Low back pain HCRU assessed utilization of healthcare resources during the last 3 months for baseline, weeks 64 and 80, via IRT. Domain evaluated was number of participants who visited the emergency room due to low back pain.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' signifies the number of participants who had visited the emergency room at specified time points.

Low back pain HCRU assessed utilization of healthcare resources during the last 3 months for baseline, weeks 64 and 80, via IRT. Domain evaluated was number of visits to the emergency room due to low back pain.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Not all participants of the ITT population had data collected at each of the time points for this outcome measure. Hence, "N" signifies only those participants who were evaluable for this OM.

Low back pain HCRU assessed utilization of healthcare resources during the last 3 months for baseline, weeks 64 and 80, via IRT. Domain evaluated was number of participants who were hospitalized due to low back pain.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n'= Participants who were evaluable for hospitalization due to low back pain at specified time points.

Low back pain HCRU assessed utilization of healthcare resources during the last 3 months for baseline, weeks 64 and 80, via IRT. Domain evaluated was number of nights stayed in the hospital due to low back pain.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Not all participants of the ITT population had data collected at each of the time points for this outcome measure. Hence, "N" signifies only those participants who were evaluable for this OM.

Low back pain HCRU assessed utilization of healthcare resources during the last 3 months for baseline, weeks 64 and 80, via IRT. Domain evaluated was number of participants who used any aids/devices for doing things. Aids such as walking aid, wheelchair, device or utensil for dress/bathe/eat and any other aids/devices.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = Participants who were evaluable for usage of any aids/devices for doing things.

Low back pain HCRU assessed utilization of healthcare resources during the last 3 months for baseline, weeks 64 and 80, via IRT. Domain evaluated was number of participants who quit job due to low back pain.

ITT population included all randomized participants who received at least one dose of SC study medication (either tanezumab or matching placebo). Here, 'n' = Participants who were evaluable for quiting job due to low back pain.

Low back pain HCRU assessed utilization of healthcare resources during the last 3 months for baseline, weeks 64 and 80, via IRT. Domain evaluated was duration since quitting job due to low back pain.

ITT population. Not all participants of the ITT population had data collected at each of the time points for this outcome measure. Hence, "N" signifies only those participants who were evaluable for this OM. Additional participants apart from the ones who had responded for quitting job responded to duration since quitting job.

TSQM v.II: self-administered 11-item validated scale that quantified participant's level of satisfaction with study medication (7 questions scored on 7-point Likert scale [1= extremely dissatisfied, 2=very dissatisfied, 3=dissatisfied, 4=somewhat satisfied, 5=satisfied, 6=very satisfied, 7=extremely satisfied]), effectiveness and side effects/tolerability (3 questions scored on 5 point Likert scale [1= extremely dissatisfied, 2=very dissatisfied, 3=somewhat dissatisfied, 4=slightly dissatisfied, 5=not at all dissatisfied], 1 question on 2 point scale [0 =No, 1=Yes]). 11 questions of TSQM were used to calculate 4 endpoints of effectiveness, side effects, convenience and global satisfaction, each scored on a 0-100 scale with 100=best level of satisfaction. Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

ITT population. Here, "N" signifies participants evaluable for this outcome measure. Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.

The mPRTI is a self-administered questionnaire containing participant reported treatment impact assessment (to assess participant satisfaction), participant global preference assessment (to assess previous treatment and preference to continue using the investigational product) and participant willingness to use drug again assessment. To assess previous treatment, participants responded for, 1=injectable prescription medicines, 2=prescription medicines taken by mouth, 3=surgery, 4=prescription medicines and surgery and 5=no treatment. Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

ITT population. Here, "N" signifies participants evaluable for this outcome measure. Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.

mPRTI : self-administered questionnaire containing participant reported treatment impact assessment (to assess participant satisfaction),participant global preference assessment (to assess previous treatment & preference to continue using investigational product) & participant willingness to use drug again assessment. To assess preference to continue using investigational product, participants responded using IRT on 5 point likert scale from 1-5, where, 1= yes, I definitely prefer drug that I am receiving now, 2= I have a slight preference for drug that I am receiving now, 3= I have no preference either way, 4= I have a slight preference for my previous treatment, 5= No, I definitely prefer my previous treatment. Higher scores indicate lesser preference to use investigational product. Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

ITT population. Here, "N" signifies participants evaluable for this outcome measure. Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.

mPRTI: self-administered questionnaire containing participant reported treatment impact assessment (to assess participant satisfaction),participant global preference assessment (to assess previous treatment and preference to continue using the investigational product) & participant willingness to use drug again assessment. To assess participants willingness to use drug again, participants responded using IRT on 5 point likert scale from 1-5, where, 1= yes, I would definitely want to use the same drug again, 2= I might want to use the same drug again, 3= I am not sure, 4= I might not want to use the same drug again, 5= no, I definitely would not want to use the same drug again. Higher scores indicate lesser willingness to use the investigational product. Pre-specified intent of study was to compare tanezumab Vs placebo for data up to & including W16 & comparisons of tanezumab Vs tramadol for data up to & including W56.

ITT population. Here, "N" signifies participants evaluable for this outcome measure. Data were not collected after W16 in placebo arm for this outcome measure, as those who met criteria to continue, switched to active treatment with tanezumab after W16.

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. 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 (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent were events between first dose of study drug and up to week 80 that were absent before treatment or that worsened relative to pretreatment state. AEs included both serious and non-serious AEs.

Safety population analyzed.Pre-specified intent of study for safety summaries until W80 was to summarize data by 4 arms.'N' in placebo arm=number of participants who received only placebo for entire study.Those who were there up to W16,but switched to tanezumab after W16 are included in tanezumab 5/10 mg arm. 'N'=participants evaluable for this OM.