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CompletedNCT04894136AZOOCOMESUpdated May 20, 2021

Reproductive and Obstetric Outcomes in TESE-ICSI Cycles for Azoospermia

An observational study in Obstructive Azoospermia, Non-obstructive Azoospermia and Obstetric Complication, sponsored by Istituto Clinico Humanitas. Completed. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-05-20.

Sponsored by Istituto Clinico Humanitas · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
520
Ages
18 Years and older
Sex
All
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Study summary

A comparison of reproductive and obstetrical outcomes is retrospectively performed among couples that underwent ICSI-TESE cycles for obstructive and non obstructive azoospermia between January 2001 and December 2019.

Read the detailed description

Azoospermia affects almost 20% of all infertile males and It can be divided into obstructive azoospermia (OA) and nonobstructive azoospermia (NOA). Assisted fertilization with testicular sperm extraction (TESE) and intracytoplasmatic sperm injection (ICSI) has been successfully applied for its treatment.

Review of the literature shows that there is a lack of consensus about reproductive outcomes between men with OA and NOA. No study has ever investigated differences in obstetrical outcomes between these two groups before.

The objective of this study is to retrospectively determine differences in reproductive and obstetrical outcomes among couples that underwent ICSI-TESE cycles for obstructive and non obstructive azoospermia.

The primary outcomes that will be investigated include:

  • Reproductive outcomes: pregnancy rate, live birth rate (LBR) and abortion rate.
  • Obstetrical outcomes: twinning rate, gestational age, prematurity rate, birth weight, cesarean section rate and the rate of the main obstetrical complication, such as pre-eclampsia, gestational hypertension, intrauterine growth restriction (IUGR).
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Conditions studied

  • Obstructive Azoospermia
  • Non-obstructive Azoospermia
  • Obstetric Complication

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Keywords

  • Reproductive outcomes
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In context

Azoospermia

59 studies on the registry are indexed under Azoospermia; 17 are open to participants now.

This study's enrollment of 520 is above the median of 95 across 24 observational studies indexed under Azoospermia.

Browse Azoospermia studies →

Lead sponsor

Istituto Clinico Humanitas is the lead sponsor of 279 studies on the registry; 70 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The study database will include all the couples who underwent ICSI-TESE cycles between January 2001 and December 2019 at Humanitas Fertility Center after ICSI-TESE for obstructive and nonobstructive azoospermia.

ICSI-TESE cycles not reaching the stage of oocyte retrieval will be excluded.

Eligibility criteria

Inclusion Criteria for obstructive azoospermia group:

  • infertility
  • diagnosis of obstructive azoospermia
  • ICSI-TESE cycles

Inclusion Criteria for non-obstructive azoospermia group:

  • infertility
  • diagnosis of non-obstructive azoospermia
  • ICSI-TESE cycles

Exclusion Criteria:

  • Sperm donation
  • Use of ejaculated sperm
  • Couples who underwent pre-implantation genetic testing
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
520 participants (actual)
Patient registry
No

Groups and cohorts

  • ICSI-TESE cycles for obstructive azoospermia

    Couples who underwent ICSI-TESE cycles for obstructive azoospermia between January 2001 and December 2019 at Humanitas Fertility Center

    Procedure: ICSI-TESE; embryo-transfer

  • ICSI-TESE cycles for nonobstructive azoospermia

    Couples who underwent ICSI-TESE cycles for nonobstructive azoospermia between January 2001 and December 2019 at Humanitas Fertility Center

    Procedure: ICSI-TESE; embryo-transfer

Interventions

  • ProcedureICSI-TESE; embryo-transfer

    The sperm injected into the cytoplasm of an oocyte (Intracytoplasmatic Sperm Injection) is obtained by testicular extraction. Ultrasound guided transvaginal embryo transfer.

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What researchers measure

Primary outcomes

  1. Live birth rate (LBR)

    Rate of delivery of a living baby after at least 22 weeks of gestation

    Time frame: 20 years (2001-2019)

  2. Pregnancy rate

    Total number of pregnancies including live births, abortions and fetal death

    Time frame: 20 years (2001-2019)

  3. Abortion rate

    Proportion of clinical pregnancies who failed to continue beyond 22 weeks of gestation

    Time frame: 20 years (2001-2019)

  4. Maternal complications rate

    Incidence of the obstetric complications, such as pre-eclampsia, gestational hypertension, placenta previa and placental abruption, intrauterine growth restriction.

    Time frame: 20 years (2001-2019)

  5. Gestational age

    Mean gestational age of the pregnancies considered (written with both weeks and days)

    Time frame: 20 years (2001-2019)

  6. Prematurity rate

    Rate of pregnancies lasted less than 37 weeks and 0 days

    Time frame: 20 years (2001-2019)

  7. Twinning rate

    Rate of twin deliveries out of the total number of deliveries

    Time frame: 20 years (2001-2019)

  8. Cesarean section rate

    Rate of cesarean section deliveries out of the total number of deliveries

    Time frame: 20 years (2001-2019)

  9. Birth weight

    Mean birth weight of the neonates written in grams.

    Time frame: 20 years (2001-2019)

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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Bocca S, Moussavi V, Brugh V, Morshedi M, Stadtmauer L, Oehninger S. ICSI outcomes in men undergoing TESE for azoospermia and impact of maternal age. Andrologia. 2017 Mar;49(2). doi: 10.1111/and.12617. Epub 2016 May 20. PubMed 27198124 ↗
  • He X, Cao Y, Zhang Z, Zhao J, Wei Z, Zhou P, Cong L. Spermatogenesis affects the outcome of ICSI for azoospermic patients rather than sperm retrieval method. Syst Biol Reprod Med. 2010 Dec;56(6):457-64. doi: 10.3109/19396368.2010.513078. Epub 2010 Oct 14. PubMed 20942727 ↗
  • La Sala GB, Valli B, Leoni S, Pescarini M, Martino F, Nicoli A. Testicular sperm aspiration (TESA) in 327 ICSI cycles. Int J Fertil Womens Med. 2006 Jul-Aug;51(4):177-82. PubMed 17184103 ↗
  • Palermo GD, Schlegel PN, Hariprashad JJ, Ergun B, Mielnik A, Zaninovic N, Veeck LL, Rosenwaks Z. Fertilization and pregnancy outcome with intracytoplasmic sperm injection for azoospermic men. Hum Reprod. 1999 Mar;14(3):741-8. doi: 10.1093/humrep/14.3.741. PubMed 10221707 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 20, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04894136
Responsible party
Sponsor
First posted
May 20, 2021
Start date
Jan 1, 2001
Primary completion
Dec 31, 2019
Completion
Dec 31, 2019
Last update
May 20, 2021

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2021. You cannot join it, but the record below documents what was studied.

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