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Trigeminal NeuralgiaPhase 2NCT01540630

A Phase IIa Withdrawal Study of CNV1014802 in Patients With Trigeminal Neuralgia

A Phase 2 study testing CNV1014802 in people with Trigeminal Neuralgia, run by Biogen at 1 site in United Kingdom.

Completed

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

Official record
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Trial summary

This is a double-blind, randomized withdrawal study comparing CNV1014802 with placebo in patients with trigeminal neuralgia who have successfully responded to CNV1014802 in an initial open-label phase. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Trigeminal Neuralgia
What is being tested?
CNV1014802
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
67 participants
Where
1 siteUnited Kingdom
Study dates
31 Mar 2012to 30 Jun 2014
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 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female aged between 18 and 70 years, with a diagnosis of trigeminal neuralgia; IHS criteria to be used.
  • Female patients must be of non-child bearing potential or agree to use an approved form of contraception
  • Male patients must agree to use an approved form of contraception
  • Body weight > 50 kg for men and > 45 kg for women.
  • BMI ≤ 34.9
  • Capable of giving written informed consent. Informed consent must be obtained prior to the commencement of any study related procedures.
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  • QTcB either/or QTcF < 450 msec in two of three ECGs conducted at screening
  • AST and ALT < 2xULN; alkaline phosphatase and bilirubin < 1.5xULN.
  • Approved concomitant medications must have been stable for at least 3 weeks prior to day 0.

Who cannot join

  • Patients who are known non-responders to sodium channel blockers at therapeutic doses.
  • Patients with causes for their facial pain other than that specified in Inclusion Criterion
  • A positive pre-study drug screen.
  • A positive history of HIV.
  • A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening.
  • History of any liver disease within the last 6 months, with the exception of known Gilbert's disease.
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  • History of excessive regular alcohol consumption within 6 months of the study.
  • Patients with a history or risk of seizures or a history of epilepsy, head injury or related neurological disorders
  • Patients with a history of uncontrolled or poorly controlled hypertension, with systolic BP frequently exceeding 160mmHg and/or diastolic BP frequently exceeding 100mmHg, or patients who have BP greater than or equal to 160mmHg systolic and/or greater than or equal to 100mmHg diastolic at screening after repeated measurements
  • History or presence of significant cardiovascular, gastro-intestinal, or renal disease or other condition known to interfere with the absorption, distribution, metabolism, or excretion of drugs.
  • Patients with conditions known to affect cardiac conduction or a personal or familial history of Brugada syndrome
  • Pregnant females or lactating females.
  • History or presence of any clinically significant abnormality in vital signs/ECG/laboratory tests or have any medical or psychiatric condition, which, in the opinion of the Investigator may interfere with the study procedures or compromise patient safety.
  • History of suicidal ideation and/or suicide attempts or clinical evidence of recent major depression.
  • Patients who are unable to maintain approved medications for their trigeminal neuralgia at a stable dose during the study.
  • Unable to refrain from excessive use of sedatives.
  • Unable to comply with the prohibited concomitant medication restrictions as detailed in the protocol. This includes but is not limited to sodium channel blockers or drugs that adversely interact with a monoamine oxidase-B inhibitor: MAOI's, antidepressants, opioids and sympathomimetic agents.
  • History of hypersensitivity to CNV1014802.
  • The patient has participated in a clinical trial and has received an investigational product within 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer) prior to the start of this study.
  • Exposure to more than four new chemical entities (medications for which no marketing authorization has been obtained) within 12 months prior to the first dosing day.
  • Where participation in the study would result in total donation of blood or blood products in excess of 500mL within a 56 day period.
  • Patient is mentally or legally incapacitated.
  • Unwillingness or inability to follow the procedures outlined in the protocol.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Professor Joanna Zakrzewska

    London

Other trials in United Kingdom

About this study

Official title: A Phase IIa Placebo-Controlled, Double-Blind Randomized Withdrawal Study to Evaluate the Safety and Efficacy of CNV1014802 in Patients With Trigeminal Neuralgia

This is a double-blind, randomized withdrawal study comparing CNV1014802 with placebo in patients with trigeminal neuralgia who have successfully responded to CNV1014802 in an initial open-label phase.

Patients will participate in an initial open-label treatment period of 21 days of CNV1014802 150mg three times a day (tid). Responders will be randomized to 28 days of CNV1014802 150mg tid or placebo.

Following an interim analysis after 10 evaluable patients have completed the open-label phase, the dose regimen may be increased to 350mg twice a day (bid) for the remainder of the trial if the responder rate is less than 60%.

Read the detailed description

In order to be randomised and enter the double-blind placebo controlled phase of the study, patients must satisfy at least one of the following criteria:

  • 30% or more decrease in number of paroxysms (either spontaneous, evoked, or both)
  • 30% reduction in the severity of pain experienced during the paroxysm (either spontaneous, evoked or both)
  • A Patient Global Improvement of Change rating of much improved/very much improved The response will be compared with the baseline recordings of pain made in the 7 day run-in period. If a patient meets one of these criteria they are termed a responder, and will be eligible to be randomized into the double-blind treatment phase.

During the double-blind randomised phase, patients will be evaluated to determine if they meet the failure criteria at each clinic visit which will occur every 7 days in the double-blind treatment period. The number of failures on CNV1014802 versus number of failures on placebo during the double-blind treatment period will be the primary outcome of the study.

Patients will be classified as a treatment failure if they meet one of the following criteria:

  • 50% increase in the frequency of paroxysms compared to the final 7 days of the open-label period
  • 50% increase in the severity of pain experienced in the paroxysms compared to the final 7 days of the open-label period
  • A Patient Global Improvement of Change rating of much worse/very much worse
  • The patient discontinues the study due to 'Lack of Efficacy'
  • The patient discontinues due to an adverse reaction or poor tolerability considered to be related to study medication

This study was previously posted by Convergence Pharmaceuticals, Ltd., which has been acquired by Biogen.

Being tested
CNV1014802, Placebo
Medical subject headings
Trigeminal Neuralgia

What participants receive

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

  • CNV1014802Drug

    CNV1014802 150mg tid for 28 days. Dose may be increased to 350mg bid following interim evaluation of efficacy.

  • PlaceboDrug

    Double-blind placebo comparator for 28 days.

Study groups in NCT01540630
Study groupRoleWhat they receive
CNV1014802ExperimentalNot described
Receives: Drug: CNV1014802
PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

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

  1. The number of failures on CNV1014802 vs. number of failures on placebo during the double-blind treatment period will be the primary outcome of the study.

    Patients will be classified as a treatment failure if they meet one of the following criteria:

    • 50% increase in the frequency of paroxysms compared to the final 7 days of the open-label period
    • 50% increase in the severity of pain experienced in the paroxysms compared to the final 7 days of the open-label period
    • A Patient Global Improvement of Change rating of much worse/very much worse
    • The patient discontinues the study due to 'Lack of Efficacy'. v. The patient discontinues due to an adverse reaction or poor tolerability considered to be related to study medication

    Measured: 4 weeks

Secondary outcomes (1)
  1. Secondary pain endpoints

    • Number and severity of paroxysms of pain in the 21 day open-label period, both evoked and spontaneous
    • Average 24 hour pain intensity numerical rating scale (PI-NRS)
    • Patient and Physician Clinical Global Impression of Change
    • Brief Pain Inventory - Facial

    Measured: 4 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 Feb 2012 (estimated)
  2. Study start31 Mar 2012
  3. Primary completion31 Mar 2014
  4. Study completion30 Jun 2014

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
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
67 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01540630
Sponsor's protocol ID
CNV1014802/202
Status last verified
Jan 2019
First submitted
23 Feb 2012
Last updated
10 Jan 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Zakrzewska JM, Palmer J, Ettlin DA, Obermann M, Giblin GM, Morisset V, Tate S, Gunn K. Novel design for a phase IIa placebo-controlled, double-blind randomized withdrawal study to evaluate the safety and efficacy of CNV1014802 in patients with trigeminal neuralgia. Trials. 2013 Nov 23;14:402. doi: 10.1186/1745-6215-14-402.

    PubMed 24267010
  • Zakrzewska JM, Palmer J, Bendtsen L, Di Stefano G, Ettlin DA, Maarbjerg S, Obermann M, Morisset V, Steiner D, Tate S, Cruccu G. Challenges recruiting to a proof-of-concept pharmaceutical trial for a rare disease: the trigeminal neuralgia experience. Trials. 2018 Dec 27;19(1):704. doi: 10.1186/s13063-018-3045-1.

    PubMed 30587219
  • Zakrzewska JM, Palmer J, Morisset V, Giblin GM, Obermann M, Ettlin DA, Cruccu G, Bendtsen L, Estacion M, Derjean D, Waxman SG, Layton G, Gunn K, Tate S; study investigators. Safety and efficacy of a Nav1.7 selective sodium channel blocker in patients with trigeminal neuralgia: a double-blind, placebo-controlled, randomised withdrawal phase 2a trial. Lancet Neurol. 2017 Apr;16(4):291-300. doi: 10.1016/S1474-4422(17)30005-4. Epub 2017 Feb 17.

    PubMed 28216232

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing CNV1014802 in people with Trigeminal Neuralgia, run by Biogen at 1 site in United Kingdom.

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 23 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 10 Jan 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. 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?

The number of failures on CNV1014802 vs. number of failures on placebo during the double-blind treatment period will be the primary outcome of the study. (time frame: 4 weeks). 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 NCT01540630, which also lists 3 linked publications.

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 10 Jan 2019.

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