ClinicalTrials.gg
RecruitingNCT06072573Updated Jan 31, 2024

Efficacy and Tolerability of AP707 in Patients With Chronic Pain Due to Diabetic Polyneuropathy

A Phase 3 interventional study of Adezunap (AP707) and Placebo in Pain, Pain Syndrome and Pain, Chronic, sponsored by Apurano Pharmaceuticals GmbH. Recruiting at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-01-31.

Primary conditionChronic PainRegistry: PainReclassifiedWhy we changed it
Registry
Pain — the first condition term the registry derived for this study.
ClinicalTrials.gg
Chronic Pain
Why
  1. The study's listed conditions name Chronic Pain, a narrower term within Pain.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Apurano Pharmaceuticals GmbH · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Sep 2024, 2 years 1 month ago, but the record still lists the study as recruiting.
  • Started Nov 2023; still recruiting 3 years later.
Phase
Phase 3
Study type
Interventional
Enrollment
558
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Over the last years a rising medical need for treatment of chronic pain was identified. Based on previous findings indicating the pain modulating effects of cannabinoids in chronic pain disorders, this clinical trial investigates the efficacy and tolerability of the THC-focused nano endocannabinoid system modulator AP707 in patients with pain disorders due to diabetic polyneuropathy. Patients receive AP707 or placebo over the course of 14 weeks as an add-on to the standard of care. Changes in pain intensity, quality of life and sleep and others measures are monitored through different scales to assess the efficacy of AP707 in patients with chronic pain due to diabetic polyneuropathy.

02

Conditions studied

  • Pain
  • Pain Syndrome
  • Pain, Chronic
  • Chronic Pain
  • Chronic Pain Syndrome
  • Diabetes
  • Diabetic Neuropathies
  • Diabetic Polyneuropathy
  • Peripheral Neuralgia
  • Peripheral Neuropathy
  • Peripheral Neuropathy With Type 2 Diabetis

Keywords

  • Adezunap
  • Pain Therapy
  • Pain
  • Pain Syndrome
  • Chronic Pain
  • Chronic Pain Syndrome
  • Diabetis
  • Diabetic Neuropathies
  • Diabetic Polyneuropathy
  • Peripheral Neuralgia
  • Peripheral Neuropathy
  • Peripheral Neuropathy with Type 2 Diabetis
  • THC
  • Tetrahydrocannabinol
  • Delta-9-Tetrahydrocannabinol
  • Cannabis
  • Cannabinoids
03

In context

Chronic Pain Reclassified

3,227 studies on the registry are indexed under Chronic Pain; 729 are open to participants now.

This study's planned enrollment of 558 is above the median of 60 across 2,388 interventional studies indexed under Chronic Pain.

Browse Chronic Pain studies →

Lead sponsor

Apurano Pharmaceuticals GmbH is the lead sponsor of 8 studies on the registry; 8 are open to participants now.

Compared within Chronic Pain, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Pain. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Signed and dated form
  2. Patients with chronic pain due to diabetic polyneuropathy since at least 3 months
  3. Female and male patients (> 18 years)
  4. Patients with more than 1 year
  5. Patients with optimized sCPT on study entry as defined in section 3.1.1 and section 3.1.3 of the study protocol
  6. Willingness of study patients of both sexes to use reliable during study participation and for three months after taking the last study medication
  7. Good command of German language, in order to understand questionnaires in German
  8. Current moderate to severe pain with pain intensity > 5 on Numeric Rating Scale (NRS, 0 - 10) and thus an existing need for further pain therapy
  9. Completed QUISS (Quantification Inventory for Somatoform Syndromes) questionnaire with 45 or less score points

Exclusion criteria

Exclusion Criteria:

  1. Medical history of or intolerance to the product or its ingredients or to ingredients of similar chemical structure
  2. Known intolerance to cannabinoids or cannabis products.
  3. Participation in another clinical trial within the last four weeks prior to inclusion.
  4. Pregnant or nursing women (as excluded by pregnancy testing at visit 1).
  5. Other medical conditions that do not allow the trial subject to appraise the nature, scope, and potential consequences of the clinical trial
  6. Indications that the trial subject is unlikely to comply with the study protocol (e.g., unwillingness to cooperate)
  7. Known use of medicinal cannabis products within the last 8 weeks
  8. Active malignant tumor disease, tumor pain, or other dominant severe pain other than that of the study indication
  9. Known history of severe liver or kidney diseases
  10. Known history of severe cardiovascular disease
  11. Known history of or acute mental illness such as severe depression, psychosis, bipolar disorder, mania, anxiety, or obsessive-compulsive disorder
  12. Known history of addictive disease (e.g., alcohol, medication, drug addiction)
  13. Answered during Screening less than 12 times of 18 the pain intensity (NRS) inquiry
  14. Laboratory liver values: (ALT, GPT) > 3 x (Upper Limit of Normal range), Aspartate aminotransferase (AST, GOT) > 3 x ULN, Alkaline phosphatase (AP) > 2.5 x ULN, and for > 1.5 x ULN
  15. Laboratory renal value: Serum creatinine > 1.5 ULN
Terms in these criteria, in plain language(8)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
558 participants (estimated)

Study arms

  • Experimental
    Treatment group

    Sublingual spray with maximum application of 16 actuations per day or a maximum daily dose of 17,6mg THC distributed over 4 daily intakes.

    Drug: Adezunap (AP707)

  • Placebo comparator
    Control group

    Sublingual spray with maximum application of 16 actuations per day distributed over 4 daily intakes.

    Drug: Placebo

Interventions

  • Sublingual spray with maximum application of 16 actuations per day or a maximum daily dose of 17,6mg THC distributed over 4 daily intakes.

  • DrugPlacebo

    Sublingual spray with maximum application of 16 actuations per day distributed over 4 daily intakes.

06

What researchers measure

Primary outcomes

  1. Change in pain level on the Numeric Rating Scale (NRS, 0-10) between baseline and at treatment week 14 (end of first treatment phase) in comparison of study arm 1 (verum) and study arm 2 (placebo)

    Time frame: Once daily in Week 4 and 14

Secondary outcomes

  1. Change in the pain score of the Neuropathic Pain Symptom Inventory (NPSI) questionnaire between baseline and at treatment week 14 in comparison of study arm 1 (verum) and study arm 2 (placebo)

    Time frame: Week 1 and 14

  2. Change in pain level on the Numeric Rating Scale (0-10) between baseline and in treatment week 5 and 11 in comparison of study arm 1 (verum) and study arm 2 (placebo)

    Time frame: Several times weekly in week 4, 5 and 11

  3. Responder analysis for endpoints 1) for treatment week 14

    1. Proportion of patients who experienced \> 30 % improvement in pain score (Numeric Rating Scale) 2. Proportion of patients who experienced \> 40 % improvement in pain score (Numeric Rating Scale) 3. Proportion of patients who experienced \> 50 % improvement in pain score (Numeric Rating Scale)

    Time frame: Week 14

  4. Change in sCPT (percentage of change in dosage and percentage of change in combination of analgesic measures) in both study arms from start to week 14

    Time frame: Week 14

  5. Change in psychological distress using Depression Anxiety Stress Scales Short Form (DASS-21) questionnaire from start to week 14

    Time frame: Week 1 and 14

  6. Change of Patient Global Impression of Change (PGIC) from start to week 14

    Time frame: Week 14

  7. Change in quality of life using the Veterans RAND (VR-12) questionnaire from start to week 14

    Time frame: Week 1 and 14

  8. Change in sleep quality using the Regensburg Insomnia Scale (RIS) from start to week 14

    Time frame: Week 1 and 14

  9. Change in pain score of the Brief Pain Inventory - Short Form (BPI-SF) questionnaire from start to week 14

    Time frame: Week 1 and 14

  10. Area under NRS-curve until treatment week 5, 11 and 14

    Time frame: Week 5, 11 and 14

  11. Change in VR-12 components (physical component summary PCS, mental component summary MCS) from start to week 14

    Time frame: Week 1 and 14

  12. Number of patients with rescue medication over the course of the clinical trial and within periods: until treatment week ≤5, ≤11 and ≤14

    Time frame: Week 5, 11 and 14

Other outcomes

  1. Number and severity of adverse events (AE)

    Time frame: Week 1 to 14

07

Study locations

1 of 1 sites recruiting
  • Klinikum Rechts der Isar (Zentrum für Interdisziplinäre Schmerztherapie)
    Munich, Bavaria 81675, Germany
    Recruiting
    • Katharina Haas · Contact
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Nov 2023 (actual). Primary completion is estimated for Sep 2024, 10 months after the start.

Of 48 phase 3 interventional studies under Chronic Pain, half reached primary completion within 37 months of starting (the median), counting those still running; a quarter within 22 and three quarters within 56. This study's planned 10 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 25, 2023
First posted
Oct 10, 2023
StartActual
Nov 2, 2023
Primary completionEst.
Sep 30, 2024
CompletionEst.
Dec 31, 2024
Last update
Jan 31, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 31, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06072573
Lead sponsor
Apurano Pharmaceuticals GmbH
Responsible party
Sponsor
First posted
Oct 10, 2023
Start date
Nov 2, 2023
Primary completion
Sep 30, 2024 (estimated)
Completion
Dec 31, 2024 (estimated)
Last update
Jan 31, 2024

Study contacts

Marko Blisse
Contact
marko.blisse@apurano.de
+49 8024 46869 28

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Adezunap

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