ContraceptionPhase 1NCT01253174
Investigation of Bioequivalence of Ethinylestradiol (EE) and Drospirenone (DRSP) in Two Different Tablet Formulations: Yasmin and Yasmin + Levomefolate Calcium (Metafolin) & L-5-MTHF in Two Different Tablet Formulations: Levomefolate Calcium (Metafolin) and Yasmin + Levomefolate Calcium (Metafolin)
A Phase 1 study testing EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131), EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca) and L-5-MTHF Ca 0.451 mg (Metafolin) in people with Contraception, run by Bayer at 1 site in Germany.
Trial summary
The purpose of this study is to examine and compare the uptake of Yasmin (oral contraceptive containing drospirenone and ethinylestradiol) with or without levomefolate calcium (Metafolin, a registered vitamin supplement) in the body and to examine and compare the uptake of levomefolate calcium with or without Yasmin… Read more about this study
- Who is it for?
- Ages 18 to 38 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Contraception
- What is being tested?
- EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131), EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca) and L-5-MTHF Ca 0.451 mg (Metafolin)
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 48 participants
- Where
- 1 siteGermany
- Study dates
- Aug 2006to Jul 2007
- Phase
- Phase 1
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 38 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy female volunteer
- Age: 18 - 38 years inclusive
- Body mass index (BMI)1: ≥ 19 and < 28 kg/m²
- Regular cyclic menstrual periods at screening OR when using combined oral contraceptives during the recruitment period reporting of natural cyclic menstrual periods prior to their use
- Willingness to use non-hormonal methods of contraception during the complete trial OR previous tubal ligation
Who cannot join
- incompletely cured pre-existing diseases for which it can be assumed that the absorption, distribution, metabolism, excretion and effect of the study drugs will not be normal
- known or suspected sex-steroid influenced malignancies
- endometrial hyperplasia; genital bleeding of unknown origin; uterus myomatosus
- known or suspected tumors of the liver and pituitary
- presence or history of severe hepatic disease as long as liver function values have not returned to normal
- severe renal insufficiency or acute renal failure
Show all 12Show fewer
- thrombophlebitis, venous / arterial thromboembolic diseases; presence or history of prodromi of a thrombosis
- other conditions that increase susceptibility to thromboembolic diseases
- known neuropsychiatric diseases, especially known or suspected epilepsy, and/ or deficient status of folate or vitamin B12
- use of any other medication within 2 cycles before first study drug administration which could affect the study aim
- use of potassium sparing drugs; use of folic acid containing supplements or medicines or use of any medication within 2 cycles before first study drug administration known to interfere with folate metabolism
- inadequate folate and/or Vitamin B12 status , clinically relevant deviations in red cell folate concentrations
Trial locations and contacts
1 site in 1 country.
Germany1 site
Scope International
Hamburg, Free and Hanseatic City of Hamburg, 22525
About this study
Official title: Open-label, Randomized, Three-fold Crossover Study to Investigate the Bioequivalence of Two Different Tablet Formulations Containing 0.03 mg Ethinylestradiol (EE) and 3 mg Drospirenone (DRSP) Without [SH T470FA] and With [SH T04532A] 0.451 mg Metafolin®, and to Investigate the Bioequivalence of Two Different Tablet Formulations Containing 0.451 mg Metafolin® Without [SH T04532C] and With 0.03 mg EE/ 3 mg DRSP [SH T04532A] in 42 Healthy Young Women
The purpose of this study is to examine and compare the uptake of Yasmin (oral contraceptive containing drospirenone and ethinylestradiol) with or without levomefolate calcium (Metafolin, a registered vitamin supplement) in the body and to examine and compare the uptake of levomefolate calcium with or without Yasmin in the body, in healthy volunteers not using hormonal contraception.
- Conditions
- Contraception
- Being tested
- EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131), EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca), L-5-MTHF Ca 0.451 mg (Metafolin)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131)Drug
single oral administration of 1 coated tablet SH T470FA (Yasmin, film-coated tablets with ethinylestradiol (EE) as free steroid), containing 0.030 mg EE + 3 mg drospirenone (DRSP)
EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca)Drug
single oral administration of 1 coated tablet SH T04532A (film-coated tablet with ethinylestradiol (EE) as clathtrate), containing 0.030 mg EE + 3 mg drospirenone (DRSP) + 0.451 mg Metafolin
L-5-MTHF Ca 0.451 mg (Metafolin)Drug
single oral administration of 1 coated tablet SH T04532C, containing 0.451 mg Metafolin
| Study group | Role | What they receive |
|---|---|---|
| EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131) | Experimental | single oral administration of 1 film-coated SHT470FA tablet (Yasmin with ethinylestradiol (EE) as free steroid), containing 0.030 mg EE + 3 mg drospirenone (DRSP) Receives: Drug: EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131) |
| EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca) | Experimental | single oral administration of 1 film-coated SHT04532A tablet (with ethinylestradiol (EE) as clathtrate), containing 0.030 mg EE + 3 mg drospirenone (DRSP) + 0.451 mg Metafolin (L-5-methyltetrahydrofolate calcium [MTHF-Ca]) Receives: Drug: EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca) |
| L-5-MTHF Ca 0.451 mg (Metafolin) | Active comparator | single oral administration of 1 coated tablet SHT04532C, containing 0.451 mg Metafolin (L-5-methyltetrahydrofolate calcium [MTHF-Ca]) Receives: Drug: L-5-MTHF Ca 0.451 mg (Metafolin) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean Maximum Concentration (Cmax) of EE Incl. Bioequivalence (BE) Evaluation
Cmax refers to the highest measured drug concentration which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample.
Measured: up to 96 hours after administration
Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of EE Incl. Bioequivalence (BE) Evaluation
The AUC is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample
Measured: up to 96 hours after administration
Mean Maximum Concentration (Cmax) of DRSP Incl. Bioequivalence (BE) Evaluation
Cmax refers to the highest measured drug concentration which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample.
Measured: up to 168 hours after administration
Mean Area Under the Concentration-time Curve (AUC) of DRSP Incl. Bioequivalence (BE) Evaluation
The AUC is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample
Measured: up to 168 hours after administration
Mean Maximum Concentration (Cmax) of L-5-methyl-THF (Baseline Corrected) Incl. Bioequivalence (BE) Evaluation
The baseline corrected Cmax is a measure of the highest measured drug concentration provided solely by the treatment after subtracting endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples, measuring the concentrations of L-5-methyl-THF in each sample and by subtracting the pre-treatment concentration.
Measured: up to 12 hours after administration
Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of L-5-methyl-THF (Baseline Corrected) Incl. Bioequivalence (BE) Evaluation
The baseline corrected AUC is a measure of the systemic drug exposure provided by the treatment excluding the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples, measuring the concentrations of L-5-methyl-THF in each sample and by subtracting the pre-treatment concentration.
Measured: up to 12 hours after administration
Mean Maximum Concentration (Cmax) of L-5-methyl-THF (Baseline Uncorrected) Incl. Bioequivalence (BE) Evaluation
The baseline uncorrected Cmax is a measure of the highest measured drug concentration including the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples and measuring the concentrations of L-5-methyl-THF in each sample.
Measured: up to 12 hours after administration
Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of L-5-methyl-THF (Baseline Uncorrected) Incl. Bioequivalence (BE) Evaluation
The baseline uncorrected AUC is a measure of the systemic drug exposure provided by the treatment including the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples and measuring the concentrations of L-5-methyl-THF in each sample.
Measured: up to 12 hours after administration
Secondary outcomes (4)
Time to Reach Maximum Concentration (Tmax) of EE
Tmax refers to the time after dosing when a drug attains its highest measurable concentration (Cmax). It is obtained by collecting a series of blood samples at various times after dosing, and measuring them for drug content
Measured: up to 96 hours after administration
Mean Area Under the Concentration-time Curve From Administration up to 72h AUC(0-72h) of DRSP
The AUC is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample
Measured: up to 72 hours after administration
Time to Reach Maximum Concentration (Tmax) of DRSP
Tmax refers to the time after dosing when a drug attains its highest measurable concentration (Cmax). It is obtained by collecting a series of blood samples at various times after dosing, and measuring them for drug content
Measured: up to 168 hours after administration
Time to Reach Maximum Concentration (Tmax) of L-5-methyl-THF
Tmax refers to the time after dosing when a drug attains its highest measurable concentration (Cmax). It is obtained by collecting a series of blood samples at various times after dosing, and measuring them for drug content
Measured: up to 12 hours after administration
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Dec 2010 (estimated)
- Study startAug 2006
- Primary completionJul 2007
- Study completionJul 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for ContraceptionStudies of the same condition, open and under way.
- More trials run by BayerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 1
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 48 participants (actual)
Sponsor and investigators
- Lead sponsor
- Bayer
- Sponsor type
- Industry (pharma, biotech, devices)
- Investigators
- Bayer Study Director, Study director, Bayer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01253174
- Sponsor's protocol ID
- 91457
- Other IDs
- 2005-001913-16, 2005
- Status last verified
- Aug 2013
- First submitted
- 2 Dec 2010
- Last updated
- 7 Aug 2013
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Wiesinger H, Eydeler U, Richard F, Trummer D, Blode H, Rohde B, Diefenbach K. Bioequivalence evaluation of a folate-supplemented oral contraceptive containing ethinylestradiol/drospirenone/levomefolate calcium versus ethinylestradiol/drospirenone and levomefolate calcium alone. Clin Drug Investig. 2012 Oct 1;32(10):673-84. doi: 10.1007/BF03261921.
PubMed 22909145
Study at a glance
From the registry record, last updated by the sponsor on 7 Aug 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Open-label, Randomized, Three-fold Crossover Study to Investigate the Bioequivalence of Two Different Tablet Formulations Containing 0.03 mg Ethinylestradiol (EE) and 3 mg Drospirenone (DRSP) Without [SH T470FA] and With [SH T04532A] 0.451 mg Metafolin®, and to Investigate the Bioequivalence of Two Different Tablet Formulations Containing 0.451 mg Metafolin® Without [SH T04532C] and With 0.03 mg EE/ 3 mg DRSP [SH T04532A] in 42 Healthy Young Women
- ClinicalTrials.gov ID
- NCT01253174
- Acronym / sponsor ID
- 91457
- Conditions
- Contraception
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 48 participants (actual)
- Lead sponsor
- BayerIndustry (pharma, biotech, devices)
- Study start
- Aug 2006
- Primary completion
- Jul 2007 (actual)
- Study completion
- Jul 2007 (actual)
- First posted
- 3 Dec 2010 (estimated)
- Results
- Posted 9 May 2011
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to examine and compare the uptake of Yasmin (oral contraceptive containing drospirenone and ethinylestradiol) with or without levomefolate calcium (Metafolin, a registered vitamin supplement) in the body and to examine and compare the uptake of levomefolate calcium with or without Yasmin in the body, in healthy volunteers not using hormonal contraception.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131) | Experimental | Drug: EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131)single oral administration of 1 film-coated SHT470FA tablet (Yasmin with ethinylestradiol (EE) as free steroid), containing 0.030 mg EE + 3 mg drospirenone (DRSP) |
| EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca) | Experimental | Drug: EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca)single oral administration of 1 film-coated SHT04532A tablet (with ethinylestradiol (EE) as clathtrate), containing 0.030 mg EE + 3 mg drospirenone (DRSP) + 0.451 mg Metafolin (L-5-methyltetrahydrofolate calcium [MTHF-Ca]) |
| L-5-MTHF Ca 0.451 mg (Metafolin) | Active comparator | Drug: L-5-MTHF Ca 0.451 mg (Metafolin)single oral administration of 1 coated tablet SHT04532C, containing 0.451 mg Metafolin (L-5-methyltetrahydrofolate calcium [MTHF-Ca]) |
Who may qualify
- Ages
- 18 to 38 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (5 listed)
- Healthy female volunteer
- Age: 18 - 38 years inclusive
- Body mass index (BMI)1: ≥ 19 and < 28 kg/m²
- Regular cyclic menstrual periods at screening OR when using combined oral contraceptives during the recruitment period reporting of natural cyclic menstrual periods prior to their use
- Willingness to use non-hormonal methods of contraception during the complete trial OR previous tubal ligation
Key exclusion criteria (12 listed)
- incompletely cured pre-existing diseases for which it can be assumed that the absorption, distribution, metabolism, excretion and effect of the study drugs will not be normal
- known or suspected sex-steroid influenced malignancies
- endometrial hyperplasia; genital bleeding of unknown origin; uterus myomatosus
- known or suspected tumors of the liver and pituitary
- presence or history of severe hepatic disease as long as liver function values have not returned to normal
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131)single oral administration of 1 coated tablet SH T470FA (Yasmin, film-coated tablets with ethinylestradiol (EE) as free steroid), containing 0.030 mg EE + 3 mg drospirenone (DRSP) | Drug | EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131) |
| EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca)single oral administration of 1 coated tablet SH T04532A (film-coated tablet with ethinylestradiol (EE) as clathtrate), containing 0.030 mg EE + 3 mg drospirenone (DRSP) + 0.451 mg Metafolin | Drug | EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca) |
| L-5-MTHF Ca 0.451 mg (Metafolin)single oral administration of 1 coated tablet SH T04532C, containing 0.451 mg Metafolin | Drug | L-5-MTHF Ca 0.451 mg (Metafolin) |
Primary outcome
Mean Maximum Concentration (Cmax) of EE Incl. Bioequivalence (BE) Evaluation
Time frame: up to 96 hours after administration
Cmax refers to the highest measured drug concentration which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample.
Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of EE Incl. Bioequivalence (BE) Evaluation
Time frame: up to 96 hours after administration
The AUC is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample
Mean Maximum Concentration (Cmax) of DRSP Incl. Bioequivalence (BE) Evaluation
Time frame: up to 168 hours after administration
Cmax refers to the highest measured drug concentration which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample.
Mean Area Under the Concentration-time Curve (AUC) of DRSP Incl. Bioequivalence (BE) Evaluation
Time frame: up to 168 hours after administration
The AUC is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample
Mean Maximum Concentration (Cmax) of L-5-methyl-THF (Baseline Corrected) Incl. Bioequivalence (BE) Evaluation
Time frame: up to 12 hours after administration
The baseline corrected Cmax is a measure of the highest measured drug concentration provided solely by the treatment after subtracting endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples, measuring the concentrations of L-5-methyl-THF in each sample and by subtracting the pre-treatment concentration.
Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of L-5-methyl-THF (Baseline Corrected) Incl. Bioequivalence (BE) Evaluation
Time frame: up to 12 hours after administration
The baseline corrected AUC is a measure of the systemic drug exposure provided by the treatment excluding the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples, measuring the concentrations of L-5-methyl-THF in each sample and by subtracting the pre-treatment concentration.
Mean Maximum Concentration (Cmax) of L-5-methyl-THF (Baseline Uncorrected) Incl. Bioequivalence (BE) Evaluation
Time frame: up to 12 hours after administration
The baseline uncorrected Cmax is a measure of the highest measured drug concentration including the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples and measuring the concentrations of L-5-methyl-THF in each sample.
Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of L-5-methyl-THF (Baseline Uncorrected) Incl. Bioequivalence (BE) Evaluation
Time frame: up to 12 hours after administration
The baseline uncorrected AUC is a measure of the systemic drug exposure provided by the treatment including the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples and measuring the concentrations of L-5-methyl-THF in each sample.
4 secondary outcomes
Time to Reach Maximum Concentration (Tmax) of EE
Time frame: up to 96 hours after administration
Mean Area Under the Concentration-time Curve From Administration up to 72h AUC(0-72h) of DRSP
Time frame: up to 72 hours after administration
Time to Reach Maximum Concentration (Tmax) of DRSP
Time frame: up to 168 hours after administration
Time to Reach Maximum Concentration (Tmax) of L-5-methyl-THF
Time frame: up to 12 hours after administration
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Aug 2013.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Results publication: PubMed 22909145Wiesinger H, Eydeler U, Richard F, Trummer D, Blode H, Rohde B, Diefenbach K. Bioequivalence evaluation of a folate-supplemented oral contraceptive containing ethinylestradiol/drospirenone/levomefolate calcium versus ethinylestradiol/drospirenone and levomefolate calcium alone. Clin Drug Investig. 2012 Oct 1;32(10):673-84. doi: 10.1007/BF03261921.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Bayer Study Director study director
Bayer
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131), EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca) and L-5-MTHF Ca 0.451 mg (Metafolin) in people with Contraception, run by Bayer at 1 site in Germany.
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 5 inclusion and 12 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 Aug 2013. 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 Germany. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 9 May 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Mean Maximum Concentration (Cmax) of EE Incl. Bioequivalence (BE) Evaluation (time frame: up to 96 hours after administration). The study lists 8 primary outcomes in all. 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 NCT01253174, 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 7 Aug 2013.