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Pulmonary TuberculosisPhase 2NCT00401271

Safety, Efficacy and Pharmacokinetics of OPC-67683 in Patients With Pulmonary Tuberculosis

A Phase 2 study testing OPC-67683 and Rifafour e-275 in people with Pulmonary Tuberculosis, run by Otsuka Frankfurt Research Institute GmbH at 3 sites in South Africa.

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

The purpose of this trial is to evaluate the safety, efficacy and pharmacokinetics of 100mg, 200mg , 300mg and 400mg once daily of OPC-67683, administered orally for 14 consecutive days, in patients with uncomplicated, smear-positive pulmonary TB. Read more about this study

Who is it for?
Ages 18 to 64 years
Conditions the study is for
Pulmonary Tuberculosis
What is being tested?
OPC-67683 and Rifafour e-275
How many people
54 participants
Where
3 sitesSouth Africa
Study dates
Nov 2006to Mar 2007
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 64 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Provide written, informed consent prior to all trial-related procedures.
  • Male and female patients aged between 18 and 64 years, inclusive.
  • Newly diagnosed, previously untreated, uncomplicated, smear positive, pulmonary TB.
  • A chest X-ray finding compatible with TB.
  • Sputum positive on direct microscopy for acid-fast bacilli (AFB) (at least 1+).
  • Able to produce an adequate volume of sputum (10mL or more estimated overnight production).
  • Female patients of childbearing potential must demonstrate a negative pregnancy test result. Furthermore they must agree to use a highly effective method of contraception.
  • Male patients must agree to use an adequate method of contraception.

Who cannot join

  • Poor general condition where no delay in treatment can be tolerated or where immediate hospital admission is warranted.
  • Rifampicin-resistant bacteria detected in the sputum susceptibility testing at Screening.
  • Treatment received with any drug active against M. tuberculosis within the 3 months prior to Screening.
  • History of allergy to any nitro-imidazole derivates, rifamycin derivatives, isoniazid derivatives, pyrazinamide or ethambutol.
  • Clinical evidence of severe extrathoracic TB (miliary TB, abdominal TB, urogenital TB, osteoarthritic TB, TB meningitis).
  • Evidence of pulmonary silicosis, lung fibrosis, or other lung condition considered as severe by the investigator (other than TB).
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  • Presence of chronic obstructive pulmonary disease or asthma.
  • Any clinically relevant concomitant conditions or renal impairment characterized by serum creatinine levels >= 1.5xULN or hepatic impairment or alcohol abuse characterized by ALT and/or aspartate transferase (AST) levels 3xULN and/or gamma-glutamyl transpeptidase (GGT) levels 3xULN of the laboratory reference range.
  • Known or suspected alcohol or drug abuse, that is, abuse sufficient enough to compromise the safety or cooperation of the patient, in the opinion of the investigator, and as evident by a positive urine drug screen.
  • Neuropathy, psychosis or epilepsy.
  • Clinically relevant changes in the ECG such as atrioventricular (AV) block, prolongation of the QRS complex >120 milliseconds (in both male and female patients), or QTcB interval >430 milliseconds in male patients and >450 milliseconds in female patients. Family history of long QT syndromes and/or Torsade de Pointes.
  • History of or current clinically relevant cardiovascular disorder such as hypokalaemia, heart failure, coronary heart disease, hypertension, arrhythmia or symptom strongly suggestive of such a problem (for example, syncope or palpitations), tachyarrhythmia or status after myocardial infarction.
  • Known bleeding disorders or family history of bleeding disorders.
  • Diabetes treated with insulin.
  • Evidence of clinically significant metabolic, gastrointestinal, neurological, psychiatric or endocrine diseases, malignancy, or other abnormalities (other than the indication being studied).
  • Any diseases or conditions in which the use of rifampicin, isoniazid, pyrazinamide or ethambutol is contra-indicated.
  • Any disease or conditions in which any of the medicinal products listed in the protocol, is used. Treatment received with quinolones and prednisolone within 3 months prior to Screening.
  • Administration of an IMP within 1 month prior to Screening.
  • Pregnancy, breast-feeding, or planning to conceive or father a child within the timeframe described in the informed consent form.
  • Recent use of methadone, benzodiazepines, cocaine, amphetamine/metamphetamine, tetrahydrocannabinol, barbiturates, tricyclic antidepressants, and opiates as determined by a urine drug screen.
  • Helper/inducer T lymphocyte (CD4 cell) count of <=350x106/L.
  • Use of antiretroviral therapy.

Trial locations and contacts

3 sites in 1 country.

South Africa3 sites
  • Tiervlei Trial Center, Karl Bremer Hospital

    Bellville, W Cape, 7531

  • Medical Research Council

    Durban, 4000

  • University of Cape Town Lung Institute

    Mowbray, W Cape, 7700

Other trials in South Africa

About this study

Official title: A Phase II Trial to Evaluate the Safety, Efficacy and Pharmacokinetics of Four Oral Doses of OPC-67683 in Patients With Uncomplicated, Smear-Positive, Pulmonary Tuberculosis

The purpose of this trial is to evaluate the safety, efficacy and pharmacokinetics of 100mg, 200mg , 300mg and 400mg once daily of OPC-67683, administered orally for 14 consecutive days, in patients with uncomplicated, smear-positive pulmonary TB.

The four OPC-67683 treatment groups will comprise 12 patients each and the one standard therapy (Rifafour e-275) group six patients.

Trial 242-06-101 is an exploratory and not a confirmatory trial and as such no hypothesis will be tested statistically.

The control group, six patients treated with Rifafour, will serve as an control to confirm the microbiological assessments during the trial.

Being tested
OPC-67683, Rifafour e-275
Medical subject headings
Tuberculosis, Pulmonary

What participants receive

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

  • OPC-67683Drug

  • Rifafour e-275Drug

What is being measured

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

  1. TB bacterial load in sputum measured as colony forming units

Secondary outcomes (3)
  1. Early Bactericidal Activity (EBA)

  2. Slope 0-14

  3. Tme to culture positivity

Timeline

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

  1. First posted20 Nov 2006 (estimated)
  2. Study startNov 2006
  3. Study completionMar 2007

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
None (open label)
Enrolment
54 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00401271
Sponsor's protocol ID
242-06-101
Status last verified
Mar 2007
First submitted
17 Nov 2006
Last updated
7 Mar 2007
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing OPC-67683 and Rifafour e-275 in people with Pulmonary Tuberculosis, run by Otsuka Frankfurt Research Institute GmbH at 3 sites in South Africa.

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 8 inclusion and 22 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 7 Mar 2007. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in South Africa. 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. 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?

TB bacterial load in sputum measured as colony forming units. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 7 Mar 2007.

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