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Painful Diabetic NeuropathyPhase 2NCT03202979

Trazodone in Painful Diabetic Neuropathy

A Phase 2 study testing Trazodone 20 mg and Trazodone 10 mg in people with Painful Diabetic Neuropathy, run by Aziende Chimiche Riunite Angelini Francesco S.p.A at 20 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The aim of the study is to collect preliminary information on the effect of low doses of trazodone on pain intensity in patients with painful diabetic neuropathy and to evaluate the neuropathic pain symptoms, anxiety, sleep, quality of life, safety and tolerability. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Painful Diabetic Neuropathy
What is being tested?
Trazodone 20 mg and Trazodone 10 mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
142 participants
Where
20 sitesin 3 countries
Study dates
16 May 2017to 9 Aug 2018
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male and female patient of any ethnic origin between 18 and 75 years of age (limits included).
  • Patient with painful diabetic symmetric polyneuropathy manifesting with distally distributed neuropathic pain.
  • Stable glycaemic control with a value of HbA1c ≤ 10% at Screening Visit.
  • Pain persisting for at least 3 months.
  • Neuropathic pain confirmed by DN4 score ≥ 4 at Screening Visit.
  • BPI-SF 24-hour average pain score (item 5) ≥ 4 at Screening Visit and Baseline Visit.
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  • Patient who is currently not receiving treatment for diabetic neuropathic pain or patient who is receiving treatment, with drug/s other than gabapentin, and have completed the required washout.
  • Women of childbearing potential must have a negative pregnancy test at Screening Visit and have to agree not to start a pregnancy from the signature of the informed consent up to thirty days after the last administration of the investigational product, using an appropriate birth control method, such as combined estrogen and progestogen containing hormonal contraception (e.g. oral, intravaginal, transdermal), progestogen-only hormonal contraception (e.g. oral, injectable, implantable), intrauterine device (IUD) or intrauterine hormone- releasing system (IUS) in combination with male condom, bilateral tubal occlusion, vasectomised partner, sexual abstinence.
  • Legally capable to give their consent to participate in the study and available to sign and date the written informed consent.

Who cannot join

  • Known hypersensitivity to trazodone or gabapentin or their excipients.
  • Other forms of neuropathic pain or non-neuropathic pain (included but not limited to peripheral arterial disease, radiculopathy, mononeuropathy, proximal motor neuropathy, post-operative pain, etc).
  • Concomitant treatment with other medications for pain management.
  • Concomitant treatment with potent CYP3A4 inhibitors (e.g. ketoconazole, ritonavir, indinavir) or drugs known to prolong QT interval.
  • Use of trazodone or gabapentin in the previous 3 months.
  • Clinically significant abnormalities on physical examination, vital signs, ECG, laboratory tests at Screening Visit that in the opinion of Investigator would compromise patient's participation in the study.
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  • Active foot ulcer or previous major limb amputation.
  • Myocardial infarction or angioplasty or by-pass graft procedures within the past 6 months.
  • Patient with increased risk of Torsade de Pointes (e.g. family history of long QT syndrome) or QTcF value higher than 450 msec (male) and QTcF value higher than 470 msec (female) at Screening Visit.
  • Transient ischemic attack or cerebral vascular accident within the past 6 months.
  • GFR value < 60 ml/min calculated with MDRD formula.
  • Significant liver disease, defined as known active hepatitis or elevated liver enzymes over 3 fold the upper normal limit of laboratory normal ranges.
  • Patient with latent or known hereditary problems of galactose intolerance or the Lapp lactase deficiency or glucose-galactose malabsorption.
  • Positive urine drug screen for CNS active drugs (cocaine, opioids, amphetamines and cannabinoids) a Screening Visit.
  • Positive present history of glaucoma.
  • Hyperthyroidism, even if pharmacologically corrected.
  • Significant mental disorders.
  • History of seizure events other than a single childhood febrile seizure.
  • History of alcohol or psychoactive substance abuse or addiction.
  • Patient suffering from adrenal hypofunction (e.g. Addison's disease).
  • Women during pregnancy or lactation period.
  • Inability to comply with the protocol requirements, instructions or study-related restrictions (e.g. uncooperative attitude, inability to return for study-visits, improbability of completing the clinical study, etc).
  • Subject involved in the conduct of the study (e.g. Investigator or his/her deputy, first grade relatives, pharmacist, assistant or other personnel, etc).
  • Participation to an interventional clinical trial within 3 months prior to Screening Visit.

Trial locations and contacts

20 sites in 3 countries.

20 sites in 3 countries

Czechia7 sites
  • NEUROHK s.r.o.

    Choceň, 565 01

  • Litnea s.r.o. Neurologicka ambulance

    Litoměřice, 412 01

  • Neurosanatio s.r.o.

    Litomyšl, 570 01

  • MP-neuro s.r.o. Poliklinika Modry pavilon

    Ostrava, 710 00

  • Nemocnice Pardubickeho kraje a.s. Pardubicka nemocnice Neurologická klinika

    Pardubice, 532 03

  • Diabetologicka ambulance Milan Kvapil s.r.o.

    Prague, 149 00

  • Vestra Clinics s.r.o.

    Rychnov Nad Knežnou, 516 01

Other trials in Czechia

Poland7 sites
  • Silmedic Sp. z o.o.

    Katowice, 40-282

  • Pro Familia Altera Sp. z o.o.

    Katowice, 40-648

  • NZOZ Neuromed M. i M. Nastaj Sp. P.

    Lublin, 20-064

  • RCMed Oddział Sochaczew

    Sochaczew, 96-500

  • Jeka Sławomir Niepubliczny Zakład Opieki Zdrowotnej "Nasz Lekarz" Praktyka Grupowa Lekarzy Rodzinnych z Przychodnia Specjalistyczna

    Torun, 87-100

  • NBR Polska Tomasz Klodawski

    Warsaw, 00-465

  • Medycyna Kliniczna

    Warsaw, 00-660

Other trials in Poland

Hungary6 sites
  • Budai Irgalmasrendi Korhaz Belgyógyászati Centrum

    Budapest, 1027

  • Semmelweis Egyetem AOK I. sz. Belgyogyaszati Klinika

    Budapest, 1083

  • Markhot Ferenc Oktatokorhaz es Rendelointezet Diabetesz Gondozo

    Eger, 3300

  • Bekes Megyei Kozponti Korhaz Pandy Kalman Tagkorhaz I. sz. Belgyogyaszati Osztaly

    Gyula, 5700

  • Bacs-Kiskun Megyei Korhaz II. sz. Belgyogyaszati Osztaly

    Kecskemét, 6000

  • Szegedi Tudomanyegyetem Szent-Gyorgyi Albert Klinikai Kozpont I. Sz. Belgyogyaszati Klinika

    Szeged, 6720

Other trials in Hungary

About this study

Official title: Efficacy and Safety of Low Doses of Trazodone in Patients Affected by Painful Diabetic Neuropathy: Randomized, Controlled, Pilot Study.

The aim of the study is to collect preliminary information on the effect of low doses of trazodone on pain intensity in patients with painful diabetic neuropathy and to evaluate the neuropathic pain symptoms, anxiety, sleep, quality of life, safety and tolerability.

Read the detailed description

This is a randomized, double-blind, placebo controlled, double-dummy, dose finding, parallel group, multicentre, international, prospective, pilot study.

The present study is planned to assess the efficacy and the safety of an 8-week treatment period with low doses of trazodone (30 mg daily or 60 mg total daily, respectively) administered to patients affected by painful diabetic neuropathy.

Gabapentin will be administered together with the investigational drug in open label conditions in order to assure an effective pharmacological treatment to all patients. A slow titration of gabapentin will be applied in this trial in order to control possible side effects when co-administered with trazodone.

Being tested
Trazodone 20 mg, Trazodone 10 mg, Placebo
Keywords
Trazodone, Placebo, Gabapentin, Neuropathic pain
Medical subject headings
Diabetic Neuropathies, Neuralgia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Trazodone 20 mgDrug

    Also called Trittico®

    Oral administration of trazodone 20 mg (corresponding to 10 drops of trazodone hydrochloride 6% oral solution), three times a day, for 8 weeks. Trazodone total daily dose: 60 mg.

    After the 8-week treatment period, patients will receive trazodone 10 mg (corresponding to 5 drops of trazodone hydrochloride 6% oral solution) three times a day for 1-week tapering period in double blind conditions.

  • Trazodone 10 mgDrug

    Also called Trittico®

    Oral administration of trazodone 10 mg (corresponding to 5 drops of trazodone hydrochloride 6% oral solution), three times a day, for 8 weeks. Trazodone total daily dose: 30 mg.

    In order to maintain the study double-blind conditions,patients randomized in this group will be co-administered with placebo oral solution (5 drops).

    After the 8-week treatment period, patients will receive placebo oral solution three times a day for 1-week tapering period in double blind conditions.

  • PlaceboDrug

    Oral administration of placebo oral solution (10 drops) three times a day, for 8-week treatment.

    After the 8-week treatment period, patients will receive placebo oral solution three times a day for 1-week tapering period in double blind conditions.

Study groups in NCT03202979
Study groupRoleWhat they receive
Group 1ExperimentalTrazodone 20 mg
Receives: Drug: Trazodone 20 mg
Group 2ExperimentalTrazodone 10 mg
Receives: Drug: Trazodone 10 mg
Group 3Placebo comparatorPlacebo
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change of item 5 score in Brief Pain Inventory Short Form (BPI-SF) scale

    Change from baseline of item 5 score in BPI-SF numering scale after 56 days.

    Measured: Baseline - Day 56

Secondary outcomes (13)
  1. Change of item 5 score in Brief Pain Inventory Short Form (BPI-SF) scale

    Change from baseline of item 5 score in BPI-SF numering scale after 7, 14, 21, 28, 35, 42, 49 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 63

  2. Change of item 3 score in Brief Pain Inventory Short Form (BPI-SF) scale

    Change from baseline of item 3 score in BPI-SF numering scale after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  3. Change of item 4 score in Brief Pain Inventory Short Form (BPI-SF) scale

    Change from baseline of item 4 score in BPI-SF numering scale after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  4. Change of item 5 score in Brief Pain Inventory Short Form (BPI-SF) scale

    Change from baseline of item 5 score in BPI-SF numering scale after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  5. Change of item 6 score in Brief Pain Inventory Short Form (BPI-SF) scale

    Change from baseline of item 6 score in BPI-SF numering scale after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  6. Change of item 8 score in Brief Pain Inventory Short Form (BPI-SF) scale

    Change from baseline of item 8 score in BPI-SF numering scale after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  7. Change of item 9 score in Brief Pain Inventory Short Form (BPI-SF) scale

    Change from baseline of item 9 score in BPI-SF numering scale after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  8. Change in Neuropathic Pain Symptom Inventory (NPSI) scale

    Change from baseline of total score in NPSI scale after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  9. Change in 36-item Short-Form Health Survey (SF-36)

    Change from baseline of SF-36 after 56 days.

    Measured: Baseline - Day 56

  10. Change in Hamilton Anxiety Rating Scale (HAM-A)

    Change from baseline of total score in HAM-A scale after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  11. Patient Global Impression of Change (PGIC)

    Assessment by patient of the overall efficacy and tolerability by PGIC after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days

    Measured: Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  12. Change in Leeds Sleep Evaluation Questionnaire (LSEQ)

    Change from baseline in LSEQ after 7, 14, 21, 28, 35, 42, 49, 56 and 63 days.

    Measured: Baseline - Days 7, 14, 21, 28, 35, 42, 49, 56 and 63.

  13. Frequency of treatment-related adverse events

    Monitoring of the frequency of adverse events, physical examination, vital signs, ECG, laboratory analyses

    Measured: 9 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jun 2017
  2. Study start16 May 2017
  3. Primary completion9 Aug 2018
  4. Study completion9 Aug 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Double-blind, placebo controlled, double-dummy, dose finding, multicentre, international, prospective, pilot study.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
142 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03202979
Sponsor's protocol ID
039(B)PO16143
Other IDs
2016-002772-27, 2016
Status last verified
Sep 2018
First submitted
23 Jun 2017
Last updated
28 Sep 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Lipone P, Ehler E, Nastaj M, Palka-Kisielowska I, Cruccu G, Truini A, Di Loreto G, Del Vecchio A, Pochiero I, Comandini A, Calisti F, Cattaneo A. Efficacy and Safety of Low Doses of Trazodone in Patients Affected by Painful Diabetic Neuropathy and Treated with Gabapentin: A Randomized Controlled Pilot Study. CNS Drugs. 2020 Nov;34(11):1177-1189. doi: 10.1007/s40263-020-00760-2.

    PubMed 32936427

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Trazodone 20 mg and Trazodone 10 mg in people with Painful Diabetic Neuropathy, run by Aziende Chimiche Riunite Angelini Francesco S.p.A at 20 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 24 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Sep 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 20 sites in Czechia, Poland, Hungary. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change of item 5 score in Brief Pain Inventory Short Form (BPI-SF) scale (time frame: Baseline - Day 56). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03202979, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Sep 2018.

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