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Buprenorphine

Phase 4FDA approved

Low Back Pain | Small molecule | Pain |Collegium Pharmaceutical, Inc.|Trials Updated: Oct 18, 2018

Buprenorphine development status

FDA approval on record Nov 30, 2017
Approval holderIndivior
ApplicationNDA209819
Highest phase Phase 4 run by Indivior Inc. (NCT00684073)
Phase scored for COLLPhase 3
Registered trials 26 across 13 sponsors since Jan 2006

Label indication SUBLOCADE is indicated for the treatment of moderate to severe opioid use disorder in patients who have initiated treatment with a single dose of a transmucosal buprenorphine product or who are already being treated with buprenorphine. SUBLOCADE should be used as part of a complete treatment plan that includes counseling and psychosocial support. FDA label

Buprenorphine target and mechanism

Molecular targetOPRK1, OPRM1
Target classAgonist
ModalitySmall molecule

Also known as Buprenorphine buccal film, Buprenorphine HCl buccal film, EN3409, BEMA Buprenorphine, BELBUCA, buprenorphine buccal soluble film, Buprenorphine HCl buccal soluble film

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials7
Total Enrollment2,699

FDA Designations

No designations recorded

Buprenorphine clinical trials

Buprenorphine · 7 trials · 5 indications

Phase 3 5Phase 2 2
NCT01755546Long-term Open-Label Safety Study to Evaluate EN3409Low Back Pain
COMPLETED304 Analytics
NCT01675167Efficacy Study to Evaluate Buprenorphine HCl Buccal Film in Opioid-Experienced SubjectsLow Back Pain
COMPLETED815 Analytics
NCT01633944Efficacy Study to Evaluate Buprenorphine HCl Buccal Film in Opioid-Naive SubjectsLow Back Pain
COMPLETED752 Analytics
NCT01298765Longterm Safety Study of BEMA Buprenorphine in Subjects With Chronic PainPain
COMPLETED302 Analytics
NCT01256450Efficacy and Safety Study of Buprenorphine HCl Buccal Film in Subjects With Low Back PainPain
COMPLETED334 Analytics
PHASE3COMPLETED
Long-term Open-Label Safety Study to Evaluate EN3409
Low Back PainUnlock trial analytics
PHASE3COMPLETED
Efficacy Study to Evaluate Buprenorphine HCl Buccal Film in Opioid-Experienced Subjects
Low Back PainUnlock trial analytics
PHASE3COMPLETED
Efficacy Study to Evaluate Buprenorphine HCl Buccal Film in Opioid-Naive Subjects
Low Back PainUnlock trial analytics
PHASE3COMPLETED
Longterm Safety Study of BEMA Buprenorphine in Subjects With Chronic Pain
PainUnlock trial analytics
PHASE3COMPLETED
Efficacy and Safety Study of Buprenorphine HCl Buccal Film in Subjects With Low Back Pain
PainUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline to Week 48 in Daily Average NRS Pain Intensity Score
48 weeks

The NRS Pain intensity score is a segmented version of a visual analog scale used to measure pain. The scale is from 0 (no pain) to 10. Scores between greater than 0 and 3 are considered mild pain, scores from greater than 3 to 6 are moderate and greater than 6 to 10 are severe. The daily average is calculated and the change from baseline at week 48 is presented.

Change From Baseline to Week 12 in Average Daily Pain Intensity Scores
Baseline, week 12

Change in pain intensity = average of daily pain scores from the last 7 days prior to week 12 visit - average of daily pain scores for the last 7 days prior to randomization. Average pain intensity over the last 24 hours was rated on an 11-point numeric rating scale (NRS) ranging from 0 (no pain) to 10 (worst pain imaginable).

Change From Baseline in NRS Pain Intensity
Baseline up to approximately Week 52

The NRS Pain intensity score is a segmented version of a visual analog scale used to measure pain. The scale is from 0 (no pain) to 10. Scores between greater than 0 and 3 are considered mild pain, scores from greater than 3 to 6 are moderate and greater than 6 to 10 are severe. The daily average is calculated and used to calculate the change from baseline at week 52.

Change in Pain Intensity From Baseline to Week 12
Baseline, Week 12

Change in pain intensity = average of daily pain scores from the last 7 days prior to week 12 visit - average of daily pain scores for the last 7 days prior to randomization. Average pain intensity over the last 24 hours was rated on an 11-point numeric rating scale (NRS) ranging from 0 (no pain) to 10 (worst pain imaginable).

Number of Responders
Pre-dose (-0.5), 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 9, 12, 12.5, 13, 13.5, 14, 16, and 24 (or end of study visit) hours post 1st study drug dose on each day of administration (period 1 [day 1] and period 2 [day 2]) in each treatment sequence

A responder is defined as a subject whose maximum (across all time points) clinical opiate withdrawal scale (COWS) total score is ≥13. COWS scores range 0 to 4 or 5 on 11 items related to opiate withdrawal signs or symptoms; total score range 0 to 48 where 0-4 = no withdrawal and 5-12 = mild, 13-24 = moderate, 25-36 = moderately severe, more than 36 = severe withdrawal.

Maximum COWS Total Score
Pre-dose (-0.5), 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 9, 12, 12.5, 13, 13.5, 14, 16, and 24 (or end of study visit) hours post 1st study drug dose on each day of administration (period 1 [day 1] and period 2 [day 2]) in each treatment sequence

Investigator-rated COWS scores range 0 to 4 or 5 on 11 items related to opiate withdrawal signs or symptoms; total score range 0 to 48 where 0-4 = no withdrawal and 5-12 = mild, 13-24 = moderate, 25-36 = moderately severe, more than 36 = severe withdrawal. The maximum COWs total score is defined as the maximum COWs total score across all time points during the corresponding treatment period after study drug administration for each subject.

Change From Baseline in Maximum COWS Total Score
Pre-dose (-0.5; baseline), 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 9, 12, 12.5, 13, 13.5, 14, 16, and 24 (or end of study visit) hours post 1st study drug dose on each day of administration (period 1 [day 1] and period 2 [day 2]) in each treatment sequence

Investigator-rated COWS scores range 0 to 4 or 5 on 11 items related to opiate withdrawal signs or symptoms; total score range 0 to 48 where 0-4 = no withdrawal and 5-12 = mild, 13-24 = moderate, 25-36 = moderately severe, more than 36 = severe withdrawal. The change from baseline in maximum COWS total score is determined as the difference between the maximum COWs total score and the baseline COWs total score.

Sum of Pain Intensity Difference From Baseline to 8 Hours
Baseline, 8 hours

Time-weighted sum of pain intensity difference from baseline to 8 hours (SPID-8) where total score ranges from -80 (worst) to 80 (best) and a higher value indicates greater pain relief. Pain intensity was recorded using an 11-point numeric rating scale (NRS), where 0=none and 10=worst pain imaginable, in response to "What is your pain level at this time?"

Secondary Endpoints

Number of Participants With Response to Treatment (Responder) Using NRS Scale
Prior to open-label titration to week 12 in double-blind treatment
Number of Subjects With Opioid Rescue Medication Use
Week 1 to Week 12
Time to Optimal Dose of Open-label Study Medication
Up to 8 weeks in open-label titration
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
EN3409EXPERIMENTALBuprenorphine HCI Buccal File at doses ranging from 300-900 mcg twice daily
Placebo Buccal FilmPLACEBO_COMPARATORTwice Daily Dosing
Buprenorphine HCl Buccal FilmEXPERIMENTALTwice Daily Dosing
PlaceboPLACEBO_COMPARATORTwice Daily Dosing
BEMA BuprenorphineEXPERIMENTALbuprenorphine buccal soluble film
BEMA PlaceboPLACEBO_COMPARATORplacebo buccal soluble film
MSE Dose Group 1EXPERIMENTALMorning and evening dose of buprenorphine HCl buccal film (300 μg) + placebo capsule in one period, and then placebo film + over-encapsulated ATC opioid (morphine sulfate or oxycodone) at 50% MSE daily dose in the alternate period
MSE Dose Group 2EXPERIMENTALMorning and evening dose of buprenorphine HCl buccal film (450 μg) + placebo capsule in one period, and then placebo film + over-encapsulated ATC opioid (morphine sulfate or oxycodone) at 50% MSE daily dose in the alternate period
Standard OpioidACTIVE_COMPARATOROxycodone 5-mg oral capsule and 2 buccal placebo films
High Dose buprenorphine HCl buccal filmEXPERIMENTALBuprenorphine HCl buccal film 0.5-mg modified formulation 1, buccal placebo film, and oral placebo capsule
Mid Dose buprenorphine HCl buccal filmEXPERIMENTALBuprenorphine HCl buccal film 0.5-mg modified formulation 2, buccal placebo film, and oral placebo capsule
Low Dose buprenorphine HCl buccal filmEXPERIMENTALBuprenorphine HCl buccal film 0.25-mg modified formulation 2, buccal placebo film, and oral placebo capsule

Interventions

NameTypeDescription
EN3409DRUGOpen-Label Buprenorphine HCI Buccal Film at doses 300-900 mcg twice daily
BuprenorphineDRUGBuprenorphine HCl Buccal Film at doses ranging from 150-900 mcg twice daily
PlaceboDRUGMatching Placebo Buccal Film twice daily
BEMA BuprenorphineDRUGbuccal soluble film; applied to the buccal mucosa twice daily
Placebo filmDRUGMatching placebo buccal film
OxycodoneDRUGOxycodone extended-release (ER) or immediate-release (IR) 5, 10, 15, 20, and 30 mg over-encapsulated oral tablets
Morphine sulfateDRUGMorphine sulfate 15, 30, and 60 mg ER or 15 and 30 mg IR over-encapsulated oral tablets
Placebo capsuleDRUGOral placebo capsules matching the over-encapsulated morphine sulfate and oxycodone tablets
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites57

Inclusion Criteria: * Female subjects who are practicing abstinence or using a medically acceptable form of contraception or have been postmenopausal, biologically sterile, or surgically sterile for more than 1 year * Male subjects who are practicing abstinence, surgically sterile, or are using a m...

Countries:United States
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Competitive Landscape -Low Back Pain 12 trials

Top 1 of 5 competitors

CompanyTickerTrialsLead PhaseDrugs
Eli Lilly and CompanyLLY1PHASE2LY4065967
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Frequently asked questions about Buprenorphine

What is buprenorphine used for?

Buprenorphine is being studied for the treatment of pain, including dental pain, low back pain, and general pain. Collegium Pharmaceutical, Inc. is developing a buprenorphine HCl buccal film formulation for these pain indications. The clinical program has focused on patients with chronic low back pain and on switching patients from other chronic opioid therapies.

What does buprenorphine target?

Buprenorphine targets the mu opioid receptor (OPRM1) and the kappa opioid receptor (OPRK1), where it acts as an agonist. Activity at OPRM1 is associated with analgesic effects, while engagement of OPRK1 may influence pain signaling and tolerability. This dual receptor activity distinguishes it from agents selective for a single opioid receptor.

Who makes buprenorphine?

Collegium Pharmaceutical, Inc. (ticker: COLL) is the developer of the buprenorphine HCl buccal film described in this clinical program. The company has sponsored the trials evaluating this formulation in pain indications. Buprenorphine itself is an established active pharmaceutical ingredient, and multiple companies market other buprenorphine products.

What phase is buprenorphine in?

Buprenorphine HCl buccal film is in clinical development, with a Phase 2 trial and three Phase 3 trials completed in pain indications. It is investigational, and the completed studies evaluated tolerability and efficacy in opioid-naive and opioid-experienced patients with low back pain and other pain conditions.

What clinical trials is buprenorphine in?

Completed trials include NCT01871285, a Phase 2 tolerability study of switching patients on chronic opioid therapy to buprenorphine HCl buccal film; NCT01675167, a Phase 3 efficacy study in opioid-experienced subjects; NCT01633944, a Phase 3 efficacy study in opioid-naive subjects; and NCT01256450, a Phase 3 efficacy and safety study in low back pain. All were conducted in the United States.

How many patients were enrolled in buprenorphine trials?

Across the reported studies, 1,567 patients were enrolled. The largest trials were NCT01675167 with 815 participants and NCT01633944 with 752 participants, both Phase 3 studies in low back pain. The Phase 2 switching study, NCT01871285, enrolled 39 subjects, and NCT01256450 enrolled 334.