# A Retrospective Study on the Effect of HBA or HBB Genetic Defects on Early Embryonic Development

> **NCT03687567** · — · COMPLETED · sponsor: **Reproductive & Genetic Hospital of CITIC-Xiangya** · enrollment: 737 (actual)

## Conditions studied

- Thalassemia,Embryonic Development,Reproductive Sterility and Infertility

## Interventions

- **PROCEDURE:** Preimplantation genetic diagnosis

## Key facts

- **NCT ID:** NCT03687567
- **Lead sponsor:** Reproductive & Genetic Hospital of CITIC-Xiangya
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2013-09-01
- **Primary completion:** 2018-07-31
- **Final completion:** 2020-12-31
- **Target enrollment:** 737 (ACTUAL)
- **Last updated:** 2022-01-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03687567

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03687567, "A Retrospective Study on the Effect of HBA or HBB Genetic Defects on Early Embryonic Development". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT03687567. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*