Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

A Phase 2a Study to Assess Safety & Pharmacokinetics of Sustained Release Sodium Nitrite in Patients With Diabetic Pain

13. april 2020 oppdatert av: TheraVasc Inc.

A Randomized, Double-blinded, Phase 2a Study to Assess the Safety and Pharmacokinetics of a Sustained Release Formulation of Sodium Nitrite (TV1001sr) in Patients With Diabetic Neuropathic Pain (DNP)

In this study, subjects with diabetic neuropathic pain (DNP) will be treated for 12 weeks with either placebo, 40 or 80 mg sustained release sodium nitrite (TV1001sr) twice daily. Primary endpoints will be safety and pharmacokinetics. Assessment of the study medications affects on pain following treatment will also be recorded.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This is a dose-ranging study to evaluate the safety, pharmacokinetics, and tolerability of multiple doses of an oral, sustained release formulation of sodium nitrite (TV1001sr) in subjects with DNP. The primary objective is to assess the safety and tolerability of multiple doses of twice daily 40 mg and 80 mg TV1001sr compared with placebo over a 12 week treatment period and the pharmacokinetics of the sustained release formulation of sodium nitrite. Secondary objectives are to evaluate the pharmacokinetics and markers of functional improvement including pain questionnaires, quantitative sensory testing and changes in markers of diabetes.

Studietype

Intervensjonell

Registrering (Faktiske)

26

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Forente stater
    • Ohio
      • Centerville, Ohio, Forente stater, 45458
        • Ohio Pain Clinic

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Female subjects must be post-menopausal, sterilized or using suitable birth control
  • Diagnosis of diabetes (HbA1c > 6.0)
  • Diagnosis of diabetic peripheral neuropathy pain in feet
  • Presence of ongoing diabetic neuropathic for at least 3 months
  • A pain score of greater than or equal to 4 on the Numerical Pain Rating Scale at screening
  • Ability to provide written informed consent

Exclusion Criteria:

  • Patients with fibromyalgia or regional pain caused by lumbar or cervical compression
  • History or diagnosis of significant neurological disease
  • History and diagnosis of clinically significant psychiatric diseases
  • Serious liver disease
  • Poorly controlled diabetes
  • Hypersensitivity to sodium nitrite or related compounds
  • Life expectancy < 6 months
  • A chronic illness that may increase the risks associated with this study
  • Active malignancy requiring active anti-neoplastic therapy that will, in the opinion of the investigator, interfere with study treatment or participation
  • Pregnant or nursing women
  • Current diagnosis of alcohol or other substance abuse
  • Current use of sildenafil or other phosphodiesterase Type 5 Inhibitors
  • History of methemoglobinemia, (met-Hb ≥ 15%)
  • Subject is involved in litigation or receives worker's compensation
  • Inability to speak English

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Firemannsrom

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Placebo komparator: Placebo
One placebo tablet administered twice daily for 12 weeks.
Legemiddel: Placebo
Placebo tablets containing same excipients and coatings used in the active tablets, without sodium nitrite being added.
Aktiv komparator: 40 mg TV1001sr
One 40 mg enteric coated sustained release, sodium nitrite tablets administered twice daily.
Legemiddel: Sodium nitrite
Sustained release formulation of sodium nitrite
Andre navn:
  • TV1001sr
Placebo komparator: Placebo (2)
Two placebo tablets administered twice daily for 12 weeks.
Legemiddel: Placebo
Placebo tablets containing same excipients and coatings used in the active tablets, without sodium nitrite being added.
Aktiv komparator: 80 mg TV1001sr
Two 40 mg enteric coated sustained release, sodium nitrite tablets administered twice daily.
Legemiddel: Sodium nitrite
Sustained release formulation of sodium nitrite
Andre navn:
  • TV1001sr

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Reporting of Adverse Events During 12 Week Study Period
Tidsramme: 12 weeks
The primary objective of this clinical study is to evaluate the safety and tolerability of multiple doses of twice daily 40mg and 80mg sustained release sodium nitrite compared with placebo over a 12 week treatment period. The following safety parameters will also be assessed: concomitant medication usage, physical examination, vital signs, Comprehensive Metabolic Panel, and complete blood count. Assessment of acute adverse events (i.e., drop in blood pressure, dizziness) after administration of each dose level. Counts are number of subjects reporting at least 1 Adverse Event. The total Adverse Events recorded in each cohort is also reported.
12 weeks

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Pharmacokinetics (Blood Levels of Nitrite)
Tidsramme: 1 day
Blood levels of nitrite will be assessed for 6 hours post-administration on the initial dosing visit.
1 day
The Number of Participants Who Reported Use of Analgesic or Medications for Neuropathic Pain.
Tidsramme: 12 weeks
Daily patient reported use of analgesic or medications for neuropathic pain. The use of medications were recorded at the baseline visit and during both the intermediate and final visit for each subject. All subjects used at least one prescription pain medication, other than one subject in the 80-mg dose cohort who used only ibuprofen to control pain. Most subjects used more than one prescription pain medication. There was no change in use of pain medications during the trial period.
12 weeks
Assessment of Patients Reported Pain Through Composite Analysis of Pain Questionaires.
Tidsramme: Baseline (visit 1) and 12 weeks (visit 3)
Subjects completed the Brief pain inventory (BPI), RAND 36 questionnaire, neuropathic pain symptom inventory (NPSI) and Short Form McGill Pain Questionnaire at each visit for these self-reported questionnaires. The BPI is a questionnaire that measures the patient's subjective perception of pain, its exacerbating and alleviating factors, and perceived effect on functional status; the NPSI is a questionnaire that measures the symptoms associated with neuropathic pain; the Short Form McGill Questionnaire subjectively assesses the patients perception of pain described by commonly used adjectives associated with pain. NPSI is average of 12 questions, range from 0 (no pain) to 120 (maximal pain); For BPI severity and interference, questions are scored from 0-10, then there average score for each subsection is calculated (the higher the score, the worse the response); Scores on McGill range from 0-10, lower associated for less pain, then averaged for each sub score and total score.
Baseline (visit 1) and 12 weeks (visit 3)
Clinical Assessment of Pain. (Quantitative Sensory Testing)
Tidsramme: 12 weeks
Quantitative sensory testing (QST) was conducted at each visit to determine patients sensitivity to pain. QST was assessed using a quantitative nerve conductance machine where nerves in the distal extremity are subjected to electrical stimulation to determine the sensory threshold of the skin. Nerve conductance measures how fast an electrical impulse moves through the nerve, and nerve velocity measures the speed at which an electrical impulse moves down a neuronal pathway.
12 weeks
Assessment of Diabetes. (HbA1C Levels)
Tidsramme: 12 weeks
HbA1C levels will be monitored at each visit to determine whether treatment reduces circulating glucose levels.
12 weeks
Assessment of Blood Oxygenation. (Pulse Oximetry)
Tidsramme: 12 weeks
Pulse oximetry will be used at each visit to determine whether treatment improves oxygen levels in the blood.
12 weeks

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

TheraVasc Inc.

Samarbeidspartnere

Kettering Health Network

Etterforskere

  • Hovedetterforsker: Amol Soin, PhD, Ohio Pain Clinic

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

28. april 2015

Primær fullføring (Faktiske)

7. desember 2015

Studiet fullført (Faktiske)

3. april 2017

Datoer for studieregistrering

Først innsendt

1. april 2015

Først innsendt som oppfylte QC-kriteriene

8. april 2015

Først lagt ut (Anslag)

9. april 2015

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

24. april 2020

Siste oppdatering sendt inn som oppfylte QC-kriteriene

13. april 2020

Sist bekreftet

1. april 2020

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Andre studie-ID-numre

  • TheraVasc-TV1001-003

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

Nei

IPD-planbeskrivelse

IPD will only be available to the PI of the trial, summary information will be published and shared with other researchers.

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

Kliniske studier på Placebo

Søk i lignende forsøk

Sponsorer og samarbeidspartnere

Medisinsk tilstand

Legemiddelintervensjoner

CROs by country

CROs in Hungary

Forhold

Sjeldne sykdommer

Legemiddelintervensjoner

Kosttilskudd

Sponsor / samarbeidspartnere

Steder

Abonnere