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Trial · NCT03740737

Recombinant FSH Investigation in the Treatment of Infertility With Assisted Reproductive Technology (ART) (RITA-1)

NCT03740737, Phase 3, Completed, Ferring Pharmaceuticals; results first posted 2024-01-18

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Recombinant FSH Investigation in the Treatment of Infertility With Assisted Reproductive Technology (ART) (RITA-1). Trials, record NCT03740737. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03740737

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Recombinant FSH Investigation in the Treatment of Infertility With Assisted Reproductive Technology (ART) (RITA-1)
NCT number
NCT03740737
Status
Completed
Phases
Phase 3
Enrollment
579 participants, actual
Lead sponsor
Ferring Pharmaceuticals
Conditions
Infertility
Interventions
Follitropin delta, Placebo
First posted
2018-11-14
Last updated
2024-01-18
Results first posted
2024-01-18

Source ClinicalTrials.gov

Registered outcomes69

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryCumulative Ongoing Pregnancy Rate After the Fresh Cycle and Cryopreserved Cycles Initiated Within 12 Months From the Start of COS8-9 weeks after transfer (up to approximately 16 months after start of stimulation)Defined as at least one intrauterine viable fetus 8-9 weeks after transfer. Data in this endpoint are presented for the fresh cycle and the cryopreserved cycles.
SecondaryOngoing Pregnancy Rate in the Fresh Cycle and in the Cryopreserved Cycles8-9 weeks after transfer (up to approximately 16 months after start of stimulation)Defined as at least one intrauterine viable fetus 8-9 weeks after transfer. Data in this endpoint are presented for the fresh cycle and the cryopreserved cycles.
SecondaryTime From Start of COS to Ongoing Pregnancy Across the Fresh and Cryopreserved Cycles8-9 weeks after transfer (up to approximately 16 months after start of stimulation)
Time from start of COS to ongoing pregnancy, including both the fresh and cryopreserved cycles. In the placebo group, no participants achieved an ongoing pregnancy either after 12 calendar months or after 12 study months.
SecondaryTime From Start of COS to Ongoing Pregnancy Across the Fresh and Cryopreserved Cycles, Measured in Number of Cycles Before Achieving Ongoing Pregnancy8-9 weeks after transfer (up to approximately 16 months after start of stimulation)
Time from start of COS to ongoing pregnancy, including both the fresh and cryopreserved cycles, measured in number of cycles before achieving ongoing pregnancy. In the placebo group, no participants achieved an ongoing pregnancy either after 12 calendar months or after 12 study months.
SecondaryOngoing Implantation Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively8-9 weeks after transfer (up to approximately 16 months after start of stimulation)
Defined as the number of intrauterine viable fetuses 8-9 weeks after transfer divided by number of blastocysts transferred. Data in this endpoint are presented for the fresh cycle, the cryopreserved cycles, and all cycles. One participant can contribute with a range from zero to multiple blastocysts. Data is not shown for placebo arm because no blastocyst transfer was performed in the fresh cycle or cryopreserved cycles. '%' in the unit of measure refers to 'percentage'.
SecondaryClinical Pregnancy Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively5-6 weeks after transfer (up to approximately 15 months after start of stimulation)Defined at least one gestational sac 5-6 weeks after transfer. Data in this endpoint are presented for the fresh cycle, the cryopreserved cycles, and all cycles.
SecondaryVital Pregnancy Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively5-6 weeks after transfer (up to approximately 15 months after start of stimulation)Defined at least one intrauterine gestational sac with fetal heart beat 5-6 weeks after transfer. Data in this endpoint are presented for the fresh cycle, the cryopreserved cycles, and all cycles.
SecondaryImplantation Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively5-6 weeks after transfer (up to approximately 15 months after start of stimulation)
Defined as the number of gestational sacs 5-6 weeks after transfer divided by number of blastocysts transferred. Data in this endpoint are presented for the fresh cycle, the cryopreserved cycles, and all cycles. One participant can contribute with a range from zero to multiple blastocysts. Data is not shown for placebo arm because no subjects underwent blastocyst transfer in the fresh cycle or cryopreserved cycles. '%' in the unit of measure refers to 'percentage'.
SecondaryPositive Beta Human Chorionic Gonadotropin (βhCG) Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively10-14 days after transfer (up to approximately 14 months after start of stimulation)Defined as positive serum βhCG test 10-14 days after transfer. Data in this endpoint are presented for the fresh cycle, the cryopreserved cycles, and all cycles.
SecondaryProportion of Subjects in the Fresh Cycle With Triggering of Final Follicular Maturation (hCG, With GnRH Agonist, and in Total), Cycle Cancellation and Transfer CancellationUp to 5 days after oocyte retrieval (up to 27 days after start of stimulation)Data in this endpoint are presented for the fresh cycle.

Outcomes69

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYCumulative Ongoing Pregnancy Rate After the Fresh Cycle and Cryopreserved Cycles Initiated Within 12 Months From the Start of COS8-9 weeks after transfer (up to approximately 16 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.percentage of participantsNUMBER
SECONDARYOngoing Pregnancy Rate in the Fresh Cycle and in the Cryopreserved Cycles8-9 weeks after transfer (up to approximately 16 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.percentage of participantsNUMBER
SECONDARYTime From Start of COS to Ongoing Pregnancy Across the Fresh and Cryopreserved Cycles8-9 weeks after transfer (up to approximately 16 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.daysMEAN
SECONDARYTime From Start of COS to Ongoing Pregnancy Across the Fresh and Cryopreserved Cycles, Measured in Number of Cycles Before Achieving Ongoing Pregnancy8-9 weeks after transfer (up to approximately 16 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.CyclesMEAN
SECONDARYOngoing Implantation Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively8-9 weeks after transfer (up to approximately 16 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.% of viable fetus/blastocyst transferNUMBER
SECONDARYClinical Pregnancy Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively5-6 weeks after transfer (up to approximately 15 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.percentage of participantsNUMBER
SECONDARYVital Pregnancy Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively5-6 weeks after transfer (up to approximately 15 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.percentage of participantsNUMBER
SECONDARYImplantation Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively5-6 weeks after transfer (up to approximately 15 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.% gestational sacs/blastocyst transferNUMBER
SECONDARYPositive Beta Human Chorionic Gonadotropin (βhCG) Rate in the Fresh Cycle, the Cryopreserved Cycles and Cumulatively10-14 days after transfer (up to approximately 14 months after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.percentage of participantsNUMBER
SECONDARYProportion of Subjects in the Fresh Cycle With Triggering of Final Follicular Maturation (hCG, With GnRH Agonist, and in Total), Cycle Cancellation and Transfer CancellationUp to 5 days after oocyte retrieval (up to 27 days after start of stimulation)The mITT analysis set comprised all randomized and exposed participants. Participants were analyzed according to planned treatment.percentage of participantsNUMBER

Results by group373

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Cumulative Ongoing Pregnancy Rate After the Fresh Cycle and Cryopreserved Cycles Initiated Within 12 Months From the Start of COSFE 999049 (Follitropin Delta)63.0percentage of participants
Cumulative Ongoing Pregnancy Rate After the Fresh Cycle and Cryopreserved Cycles Initiated Within 12 Months From the Start of COSPlacebo0.0percentage of participants
Ongoing Pregnancy Rate in the Fresh Cycle and in the Cryopreserved CyclesFE 999049 (Follitropin Delta)Fresh cycle29.5percentage of participants
Ongoing Pregnancy Rate in the Fresh Cycle and in the Cryopreserved CyclesPlaceboFresh cycle0.0percentage of participants
Ongoing Pregnancy Rate in the Fresh Cycle and in the Cryopreserved CyclesFE 999049 (Follitropin Delta)Cryopreserved cycles65.8percentage of participants
Ongoing Pregnancy Rate in the Fresh Cycle and in the Cryopreserved CyclesPlaceboCryopreserved cycles0percentage of participants
Time From Start of COS to Ongoing Pregnancy Across the Fresh and Cryopreserved CyclesFE 999049 (Follitropin Delta)Total number of days until ongoing pregnancy 12 study months133.0Standard Deviation 82.5days
Time From Start of COS to Ongoing Pregnancy Across the Fresh and Cryopreserved CyclesFE 999049 (Follitropin Delta)Total number of days until ongoing pregnancy 12 calendar months127.6Standard Deviation 70.0days
Time From Start of COS to Ongoing Pregnancy Across the Fresh and Cryopreserved Cycles, Measured in Number of Cycles Before Achieving Ongoing PregnancyFE 999049 (Follitropin Delta)Number of cycles until ongoing pregnancy 12 study months1.8Standard Deviation 0.9Cycles
Time From Start of COS to Ongoing Pregnancy Across the Fresh and Cryopreserved Cycles, Measured in Number of Cycles Before Achieving Ongoing PregnancyFE 999049 (Follitropin Delta)Number of cycles until ongoing pregnancy 12 calendar months1.8Standard Deviation 0.9Cycles

Participant flow8

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDFE 999049 (Follitropin Delta)526
Overall StudySTARTEDPlacebo53
Overall StudymITTFE 999049 (Follitropin Delta)525
Overall StudymITTPlacebo53
Overall StudyCOMPLETEDFE 999049 (Follitropin Delta)506
Overall StudyCOMPLETEDPlacebo52
Overall StudyNOT COMPLETEDFE 999049 (Follitropin Delta)20
Overall StudyNOT COMPLETEDPlacebo1

Adverse events20

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherProcedural painInjury, poisoning and procedural complicationsFE 999049 (Follitropin Delta)150525156
otherProcedural painInjury, poisoning and procedural complicationsPlacebo0530
otherMorning sickness (Fresh cycle)Pregnancy, puerperium and perinatal conditionsFE 999049 (Follitropin Delta)2852534
otherMorning sickness (Fresh cycle)Pregnancy, puerperium and perinatal conditionsPlacebo0530
otherPelvic discomfortReproductive system and breast disordersFE 999049 (Follitropin Delta)3052533
otherPelvic discomfortReproductive system and breast disordersPlacebo2532
otherMorning Sickness (Cryopreserved cycle)Pregnancy, puerperium and perinatal conditionsFE 999049 (Follitropin Delta)5027860
otherMorning Sickness (Cryopreserved cycle)Pregnancy, puerperium and perinatal conditionsPlacebo0530
otherHaemorrhage in pregnancyPregnancy, puerperium and perinatal conditionsFE 999049 (Follitropin Delta)3127836
otherHaemorrhage in pregnancyPregnancy, puerperium and perinatal conditionsPlacebo0530

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityFE 999049 (Follitropin Delta)0525
Total, all-cause mortalityPlacebo053
Total, other adverse eventsFE 999049 (Follitropin Delta)188525
Total, other adverse eventsPlacebo253
Total, serious adverse eventsFE 999049 (Follitropin Delta)4525
Total, serious adverse eventsPlacebo053

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
40714031DERIVED

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 comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
FE 999049 (Follitropin Delta) vs Placebo: deaths from any causeTrial comparisons
FE 999049 (Follitropin Delta) vs Placebo: serious adverse eventsTrial comparisons

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.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

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/NCT03740737

GET https://conductscience.org/api/trials/v1/NCT03740737/registered?page=2