Efficacy and Safety of VER-01 in the Treatment of Patients With Chronic Non-specific Low Back Pain

Chronic Non-specific Low Back Pain Clinical Trial

Official title:

Proof of Efficacy, Maintenance of Efficacy, Long-term Safety and Investigation of the Potential for Dependence and Abuse and the Effect of Abrupt Drug Withdrawal of VER-01 in the Treatment of Patients With Chronic Non-specific Low Back Pain

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04940741
• Other study ID #: VER-CLBP-001
• Status: Completed
• Phase: Phase 3
• Start date: July 7, 2021
• Est. completion date: March 26, 2024

Study information

• Verified date: April 2024
• Source: Vertanical GmbH
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Analysis of the efficacy, maintenance of efficacy, long-term safety, and investigation of the potential for dependence and abuse and the effect of abrupt drug withdrawal of VER-01 in the treatment of patients with chronic non-specific low back pain when drug treatment is indicated and previous optimised treatments with non-opioid analgesics have not led to sufficient pain relief or were unsuitable due to contraindications or intolerance.

Description:

The study is divided into four phases: Phase A, B, C and D. All patients who have completed Phase A and for whom the investigator considers further participation to be safe shall begin Phase B. Phases C and D run in parallel, so that patients who have completed Phase B and for whom the investigator considers further participation to be safe can be assigned to one of the two phases.

Phases A and D follow a double-blind, placebo-controlled design, while Phase B and C have an open-label design.

The main goal of Phase A is to demonstrate the efficacy of VER-01 compared to placebo. In Phase B and C the main goal is the investigation of long-term safety of VER-01. In Phase D the primary objective is to demonstrate the maintenance of efficacy of VER-01 on a placebo-controlled basis.

The potential for dependence and abuse will be analyzed in all Phases (A,B,C,D), while the effect of abrupt drug withdrawal of VER-01 will be analyzed in Phase C and D.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 820
• Est. completion date: March 26, 2024
• Est. primary completion date: March 26, 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

1. Male and female patients (18 years and older)

2. Chronic (for at least three months) non-specific pain in the lower back (between the lower ribcage and the gluteal folds)

3. Pain intensity on average at least 4 points on an 11-point NRS (one month before the start of the study)

4. Patients with indicated drug treatment where previous optimised treatments with non-opioid analgesics have not led to sufficient pain relief or were unsuitable due to contraindications or intolerance.

5. Willingness of both men and women to use a reliable method of contraception during study participation and for three months after taking the last dose of the IMP

6. Signed patient information and informed consent form is available

7. Understanding of the German language, ability to give consent and compliance

8. The patient has understood the instructions to avoid changes in lifestyle and dietary habits

9. The patient has understood the principle of the patient diary and gives their consent to keep it as instructed

Additional for Phase A

a1. Pain intensity averaged at least 4 points on an 11-point NRS (there must be at least 5 pain intensity readings in the morning from the run-in phase)

a2. Willingness not to take any analgesic medication (non-opioid and opioid analgesics as well as adjuvant analgesics) during participation in study Phase A (except rescue medication)

a3. Willingness to continue a current non-drug therapy unchanged as planned during participation in Phase A

Additional for Phase B

b1. Previous and complete participation in Phase A until and including Visit A6

b2. Patient wishes to participate voluntarily in the long-term study

b3. From the investigator's point of view, further participation is considered medically safe

b4. Willingness not to take any additional analgesic medication (non-opioid and opioid analgesics as well as adjuvant analgesics) during the last three weeks of study Phase B (except rescue medication).

Additional for Phase C

c1. Previous and complete participation in Phase B until and including Visit B10

c2. Patient wishes to participate voluntarily in the long-term study

c3. From the investigator's point of view, further participation is considered medically safe

Additional for Phase D

d1. Previous and complete participation in Phase B until and including Visit B10 (patients received Ver-01 for 26 weeks)

d2. Patient has experienced a pain score improvement of at least 30% in treatment Phase B (mean value of the study week 43 compared to the mean value of the run-in phase, there must be at least four values from study week 43 and five values from the run-in phase)

d3. Patient wishes to participate voluntarily in the study

d4. From the investigator's point of view, further participation is considered medically safe

d5. Willingness not to take any analgesic medication (non-opioid and opioid analgesics as well as adjuvant analgesics) during participation in study Phase D (except rescue medication)

d6. Willingness to continue a current non-drug therapy unchanged as planned during study

Exclusion Criteria:

1. Professional groups for which the ability to operate machinery and drive vehicles is the primary activity (including truck, bus and forklift drivers, pilots)

2. Alcohol/drug/medication abuse and previous or current intake of methadone in the patient's medical history or suspected by the investigator

3. Intake of analgesic medication (non-opioid and opioid analgesics as well as adjuvant analgesics) within seven days prior to the start of the study

4. Taking cannabis-based products within 30 days prior to the start of the study

5. HIV, dementia (which impairs the assessment of symptoms)

6. Severe forms of the following diseases: Anaemia,hematological/autoimmune/endocrinal/ renal/hepatic/respiratory/cardiovascular or gastrointestinal diseases, symptomatic peripheral vascular diseases

7. Cardiovascular event in the past three months, poorly managed high blood pressure, untreated hypothyroidism, patients with Crigler-Najjar syndrome or Rotor syndrome, surgery within the past two months

8. Severe mental illnesses (e.g. psychosis, schizophrenia, bipolar disorder), severe depression that is not due to the chronic non-specific low back pain, or individuals at risk of suicide (examined using the MINI questionnaire)

9. Severe mental illness (psychosis, schizophrenia, bipolar disorder, severe depression, anxiety disorder) in a first-degree relative (parents and children); suicide in a first-degree relative (parents and children)

10. Patients with an active cancer or tumor-related pain or severe pain due to physical injury

11. Other painful comorbidities, excluding low back pain, that could interfere with the patient's evaluation during the study or the assessment of pain

12. Well-known strong adverse events in connection with cannabis consumption before the start of the study

13. Known allergy to cannabis and/or sesame seeds and products derived from them

14. Known hypersensitivity to the ingredients of the rescue medication

15. Planned blood donation, planned sperm or egg donation, planned freezing of eggs or sperm

16. Pregnancy, breastfeeding, desire to have children (within the next 20 months)

17. Participation in another clinical trial within the past 30 days before the start of the study

18. Inability to give consent, care dependency, patient has a legal guardian/caregiver, or is immobile

19. The patient is in need of special protection (e.g., incarcerated; institutionalized by a court or judicial authority; in a dependent or employment relationship with the sponsor, an external service provider of the sponsor (who is involved in the study conduct), the investigator, or the study site).

Additional for Phase A:

a1. In the case of a current non-drug therapy (e.g. physical or behavioural therapy, acupuncture,massage, thermotherapy), which significantly modulates the perception of pain, it was not maintained unchanged for at least eight weeks prior to study participation in Phase A.

Additional for Phase D

d1. Intake of additional analgesic medication (non-opioid and opioid analgesics as well as adjuvant analgesics) within 21 days prior to the start of study Phase D (except rescue medication).

d2. In the case of a current non-drug therapy (e.g. physical or behavioural therapy, acupuncture,massage, thermotherapy) that significantly modulates the perception of pain, it was not maintained unchanged for at least nine weeks prior to the start of study Phase D.

Related Conditions & MeSH terms

• Back Pain
• Chronic Non-specific Low Back Pain
• Low Back Pain

Intervention

Drug:
• VER-01
standardised cannabis extract (containing 21 mg THC per gram drug product)

Other:
• Placebo
comparator without active ingredient

Locations

Country	Name	City	State
Germany	Emovis GmbH	Berlin

Sponsors (1)

Lead Sponsor	Collaborator
Vertanical GmbH

Country where clinical trial is conducted

Germany, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Phase A: Efficacy based on pain reduction	Change in average pain intensity compared to baseline on an 11-point Numerical Rating Scale (NRS, where 0=no pain to 10=worst pain imaginable) (mean value of study week 15 compared to the mean value of the seven-day run-in phase with daily documentation of pain intensity in the morning).	Baseline up to 15 weeks
Primary	Phase B: Safety based on occurrence of treatment-related AEs/SAEs	Safety and adverse reactions based on occurrence of treatment-related AEs/SAEs	Up to 29 weeks
Primary	Phase C: Safety based on occurrence of treatment-related AEs/SAEs	Safety and adverse reactions based on occurrence of treatment-related AEs/SAEs	Up to 28 weeks
Primary	Phase D: Maintenance of efficacy	Time until treatment failure defined as the time in days from randomization to phase D (R2) until the first day of treatment failure. Treatment failure is assessed by the daily calculated seven-day mean value of the pain score (11 point Numerical Rating Scale, NRS, where 0=no pain to 10=worst pain imaginable) in the morning during the treatment period, which must have deteriorated by at least 20% and at least one point compared to baseline (mean value of study week 43). The first day of treatment failure is then the earliest day within this seven-day time window to which this criterion applies as a single day. Furthermore, treatment failure is defined as a premature discontinuation of treatment for selected reasons.	Up to 4 weeks (from date of randomization R2 until the first day of treatment failure)
Secondary	Phase A, B, C, D: Mean change in neuropathic pain	Absolute change compared to baseline (day1) Neuropathic Pain Symptom Inventory (NPSI) total score at the end of each treatment phase in patients with neuropathic pain	Day 1, day 106, day 309, day 351, day 505
Secondary	Phase A, B, C, D: Change in pain intensity in the morning, as well as in the morning and evening	Absolute changes from baseline in mean pain intensity at the end of each treatment phase measured in the morning (primary endpoint of Phase A) or morning and evening on an 11-point Numerical Rating Scale (NRS, where 0=no pain to 10=worst pain imaginable)	Baseline up to 72 weeks
Secondary	Phases A, B, C and D: Pain responders (30 percent and 50 percent) in the morning, as well as in the morning and evening	The number and proportion of 30 percent and 50 percent pain responders in the morning, and morning and evening at the end of each treatment phase.	Baseline up to 72 weeks
Secondary	Phases A, B, C and D: Sleep quality (NRS)	The absolute change from baseline in mean sleep quality at the end of each treatment phase measured on an 11-point Numerical Rating Scale (NRS, where 0=not impacted to 10=completely impacted)	Baseline up to 72 weeks
Secondary	Phase A: Sleep quality (MOS-SS)	Absolute changes from baseline of sleep quality measured by Medical Outcomes Study Sleep Scale (MOS-SS) per survey point	Day 1, Day 22, Day 50, Day 78, Day 106
Secondary	Phase A: Intake of rescue and concomitant medication	Cumulative dose of rescue medication taken in Phase A	Up to 16 weeks
Secondary	Phase D: Intake of rescue and concomitant medication	Cumulative dose of rescue medication taken in Phase D	Up to 6 weeks
Secondary	Phases A, B, C and D: Depression Anxiety Stress Scales (DASS)	Scores and absolute changes from baseline of depression, anxiety and stress levels measured by the DASS (where 0=did not apply to me at all to 3=affected me very greatly or most of the time) per time point of assessment	Baseline up to 72 weeks
Secondary	Phases A, B, C and D: Global assessment of symptoms (patient global impression of change, PGIC)	Percentage of patients by category of the global assessment of symptoms (PGIC, 7-point Likert scale where 0=very much better to 6=very much worse) by the patient per survey point	Day 106, day 309, day 491, day 337
Secondary	Phases A, B, C and D: Satisfaction with the treatment result - patient	Percentage of patients by category of the satisfaction with the treatment outcome (5-point Likert scale, where 0=very satisfied to 4=very unsatisfied) by the patient per survey point	Day 106, day 309, day 491, day 337
Secondary	Phases A, B, C and D: Satisfaction with the treatment result - investigator	Percentage of patients by category of satisfaction with the treatment outcome (5-point Likert scale, where 0=very satisfied to 4=very unsatisfied) by the investigator per survey point.	Day 106, day 309, day 491, day 337
Secondary	Phases A, B, C and D: Satisfaction with tolerability - patient	Percentage of patients by category of satisfaction with the tolerability (5-point Likert scale, where 0=very satisfied to 4=very unsatisfied) by the patient per survey point	Day 106, day 309, day 491, day 337
Secondary	Phase A: Safety and adverse reactions	Safety and adverse reactions based on occurrence of treatment-related AEs/SAEs	Up to 16 weeks
Secondary	Phase D: Safety and adverse reactions	Safety and adverse reactions based on occurrence of treatment-related AEs/SAEs	Up to 6 weeks
Secondary	Phases A, B, C and D: Quality of life scores (Short Form 36, SF-36)	Scores in quality of life measured per survey point	Day 1, day 22, day 50, day 78, day 106, day 309, day 491, day 337
Secondary	Phases A, B, C and D: Quality of life absolute changes (Short Form 36, SF-36)	Absolute changes in quality of life from baseline (day 1) measured per survey point	Day 1, day 22, day 50, day 78, day 106, day 309, day 491, day 337
Secondary	Phase A: Scores in bodily function and impairment due to low back pain (Roland Morris Disability Questionnaire, RMD)	Scores in bodily function and impairment due to low back pain assessed by the RMD per survey point	Day 1, day 22, day 106
Secondary	Phase A: Absolute changes in bodily function and impairment due to low back pain(Roland Morris Disability Questionnaire, RMD)	Absolute changes in bodily function and impairment due to low back pain assessed by the RMD per survey point	Day 1, day 22, day 106
Secondary	Phases A, B, C and D: Addiction (Addiction Behaviors Checklist ,ABC)	The absolute number of positive answers of the ABC	Day 22, day 50, day 78, day 106, day 127, day 183, day 239, day 309, day 365, day 421, day 491, day 337
Secondary	Phase C: Diagnosis of substance dependence ICD-10 (International Statistical Classification of Diseases and Related Health Problems)	The absolute number of positive answers according to the German Bundesärztekammer (2007) is summarized descriptively according to the standard for continuous parameters.	Day 491
Secondary	Phase A, B, C and D: Adverse events (AEs)	Occurrence of AEs/SAEs	Through study completion, up to 72 weeks
Secondary	Phase C: Withdrawal symptoms (Cannabis Withdrawal Scale, CWS)	Sum scores for intensity and functional impairment are descriptively analysed according to Allsop et al.	Up to 2 weeks
Secondary	Phase D: Withdrawal symptoms (Cannabis Withdrawal Scale, CWS)	Sum scores for intensity and functional impairment are descriptively analysed according to Allsop et al.	Up to 4 weeks