Efficacy and Safety of VER-01 in the Treatment of Participants With Chronic Painful Lumbosacral Radiculopathy (EXPAND)

June 22, 2026 updated by: Vertanical GmbH

Multicenter, Double-blind, Randomized, Placebo-controlled Phase III Trial to Evaluate the Efficacy and Safety of the Full-spectrum Cannabis Extract VER-01 in Participants With Chronic Painful Lumbosacral Radiculopathy

The aim of the trial is to prove the efficacy and safety of VER-01 compared to placebo in patients with chronic painful lumbosacral radiculopathy (PLSR) for whom drug treatment is indicated and previous optimized treatments with non-opioid analgesics have not led to sufficient pain relief or were unsuitable due to contraindications or intolerance.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

810

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Participants ≥ 18 years of age, all sexes
  • Participant voluntarily provided written informed consent
  • Participant is willing and able to comply with scheduled visits, treatment plan, eDiary, and other trial-related procedures throughout trial participation

Exclusion Criteria:

  • Pregnant or breastfeeding female patients
  • Known history of previous or current severe psychiatric disorder as per DSM-5 (e.g., schizophrenia, bipolar disorder, severe anxiety disorder, psychotic disorder, post-traumatic stress disorder), or currently taking antipsychotic medication
  • Cardiovascular event or clinically significant cardiac dysfunction (e.g., congestive heart failure, myocardial ischemia, arrhythmias, poorly controlled high blood pressure, congenital long QT syndrome) within 12 months or a cardiac disorder that, in the opinion of the investigator, would put the patient at risk of a clinically significant arrhythmia or myocardial infarction

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
Other: Placebo
Comparator without active ingredient
Experimental: VER-01 Dose 1
Drug: VER-01
Standardized soft extract from Cannabis sativa DKJ127 L., cannabis flos (Cannabis flower), corresponding to 19 mg Δ9-Tetrahydrocannabinol (THC) per ml drug product
Experimental: VER-01 Dose 2
Drug: VER-01
Standardized soft extract from Cannabis sativa DKJ127 L., cannabis flos (Cannabis flower), corresponding to 19 mg Δ9-Tetrahydrocannabinol (THC) per ml drug product

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Efficacy based on pain reduction
Time Frame: From Baseline to Treatment Week 12
The primary endpoint is the absolute change in mean leg pain intensity in the index leg measured on an 11-point numerical rating scale (NRS) at Treatment Week 12 compared to Baseline.
From Baseline to Treatment Week 12

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Vertanical GmbH

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

September 1, 2026

Primary Completion (Estimated)

September 1, 2028

Study Completion (Estimated)

September 1, 2028

Study Registration Dates

First Submitted

April 24, 2025

First Submitted That Met QC Criteria

April 24, 2025

First Posted (Actual)

May 2, 2025

Study Record Updates

Last Update Posted (Actual)

June 25, 2026

Last Update Submitted That Met QC Criteria

June 22, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • VER-CLBP-003

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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