Trial · NCT03271541
A Study of Bitopertin (RO4917838) in Adults With Non-Transfusion-Dependent (NTD) Beta-Thalassemia
NCT03271541, Phase 2, Completed, Hoffmann-La Roche
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. A Study of Bitopertin (RO4917838) in Adults With Non-Transfusion-Dependent (NTD) Beta-Thalassemia. Trials, record NCT03271541. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03271541
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- A Study of Bitopertin (RO4917838) in Adults With Non-Transfusion-Dependent (NTD) Beta-Thalassemia
- NCT number
- NCT03271541
- Status
- Completed
- Phases
- Phase 2
- Enrollment
- 12 participants, actual
- Lead sponsor
- Hoffmann-La Roche
- Conditions
- Beta-Thalassemia
- Interventions
- Bitopertin
- First posted
- 2017-09-05
- Last updated
- 2018-10-05
- Other registries' IDs
- eudract:2016-004799-23
Source ClinicalTrials.gov
Registered outcomes15
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Safety Outcome: Percentage of Participants with Adverse Events (AEs) - Part 1 only | Baseline, Week 16, up to Week 22 | |
| Primary | Efficacy Outcome: Change in Total Hemoglobin (Hb) Level from Baseline to End of 16-Week Treatment Period in Part 1 | Baseline to Week 16 | |
| Primary | Long-term Safety Outcome : Percentage of Participants with Adverse Events (AEs) - Part 2 only | Baseline to 19 Months | |
| Secondary | Apparent Clearance of Bitopertin | Part 1: 2,12 hours (H) postdose (PD) on Day 1; 0 H predose (PRD) on Day 2; 0H PRD and 3H PD on Days 15,29,57; 0H PRD and 1,4H PD on Day 85; 0H PRD on Day 113; early withdrawal (ED) up to 22 wks. Part 2: 0H PRD and 1,4H PD on Days 183,365; ED up to 65 wks | |
| Secondary | Volume of Distribution of Bitopertin | Part 1: 2,12 hours (H) postdose (PD) on Day 1; 0 H predose (PRD) on Day 2; 0H PRD and 3H PD on Days 15,29,57; 0H PRD and 1,4H PD on Day 85; 0H PRD on Day 113; early withdrawal (ED) up to 22 wks. Part 2: 0H PRD and 1,4H PD on Days 183,365; ED up to 65 wks | |
| Secondary | Area Under the Concentration-Time Curve (AUC) of Bitopertin within a Dosing Interval | Part 1: 2,12 hours (H) postdose (PD) on Day 1; 0 H predose (PRD) on Day 2; 0H PRD and 3H PD on Days 15,29,57; 0H PRD and 1,4H PD on Day 85; 0H PRD on Day 113; early withdrawal (ED) up to 22 wks. Part 2: 0H PRD and 1,4H PD on Days 183,365; ED up to 65 wks | |
| Secondary | Minimum Observed Concentration (Cmin) of Bitopertin | Part 1: Predose (0 H) on Days 2, 15, 29, 57, 85, 113; and at early withdrawal (up to 22 weeks overall). Part 2: Predose (0 H) and postdose (1, 4 H) on Days 183, 365; and at early withdrawal (up to 65 weeks overall) | |
| Secondary | Maximum Observed Concentration (Cmax) of Bitopertin | Part 1: 2,12 hours (H) postdose (PD) on Day 1; 0 H predose (PRD) on Day 2; 0H PRD and 3H PD on Days 15,29,57; 0H PRD and 1,4H PD on Day 85; 0H PRD on Day 113; early withdrawal (ED) up to 22 wks. Part 2: 0H PRD and 1,4H PD on Days 183,365; ED up to 65 wks | |
| Secondary | Apparent Elimination Half-Life of Bitopertin | Part 1: 2,12 hours (H) postdose (PD) on Day 1; 0 H predose (PRD) on Day 2; 0H PRD and 3H PD on Days 15,29,57; 0H PRD and 1,4H PD on Day 85; 0H PRD on Day 113; early withdrawal (ED) up to 22 wks. Part 2: 0H PRD and 1,4H PD on Days 183,365; ED up to 65 wks | |
| Secondary | Accumulation Ratio of Bitopertin | Part 1: 2,12 hours (H) postdose (PD) on Day 1; 0 H predose (PRD) on Day 2; 0H PRD and 3H PD on Days 15,29,57; 0H PRD and 1,4H PD on Day 85; 0H PRD on Day 113; early withdrawal (ED) up to 22 wks. Part 2: 0H PRD and 1,4H PD on Days 183,365; ED up to 65 wks |
1 to 10 of 15Source ClinicalTrials.gov
See all 15 registered outcomesOutcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers1
The papers the trial lists on ClinicalTrials.gov.
| PMID | Listed as |
|---|---|
| 33931857 | DERIVED |
Source PubMed
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT03271541
GET https://conductscience.org/api/trials/v1/NCT03271541/registered