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CTRI Number  CTRI/2025/10/096009 [Registered on: 13/10/2025] Trial Registered Prospectively
Last Modified On: 10/10/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   A study comparing two hormonal trigger methods before egg collection to assess embryo quality in women with poor ovarian response undergoing IVF 
Scientific Title of Study   Double vs Dual Trigger in POSEIDON 3–4: A Multicenter RCT on Embryo quality in Poor Responders 
Trial Acronym  nil 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Parinaaz Parhar  
Designation  Regional Medical Head 
Affiliation  Oasis School of Human Embryology and Reproductive Medicine (OSHERM) 
Address  Oasis Fertility, 2nd Floor, CVK Square, SD Road, Secunderabad
Plot No. 8-2-120/112/A/7, Road Number 9, Jubilee Hills, Hyderabad, Telangana 500034
Hyderabad
TELANGANA
500003
India 
Phone  9881474476  
Fax    
Email  parinaaz.parhar@oasisindia.in  
 
Details of Contact Person
Scientific Query
 
Name  Dr Parinaaz Parhar  
Designation  Regional Medical Head 
Affiliation  OSHERM 
Address  Oasis Fertility, 2nd Floor, CVK Square, SD Road, Secunderabad
Plot No. 8-2-120/112/A/7, Road Number 9, Jubilee Hills, Hyderabad, Telangana 500034
Hyderabad
TELANGANA
500003
India 
Phone  9881474476  
Fax    
Email  parinaaz.parhar@oasisindia.in  
 
Details of Contact Person
Public Query
 
Name  Dr Parinaaz Parhar  
Designation  Regional Medical Head 
Affiliation  Oasis School of Human Embryology and Reproductive Medicine (OSHERM) 
Address  Oasis Fertility, 2nd Floor, CVK Square, SD Road, Secunderabad
Plot No. 8-2-120/112/A/7, Road Number 9, Jubilee Hills, Hyderabad, Telangana 500034
Hyderabad
TELANGANA
500003
India 
Phone  9881474476  
Fax    
Email  parinaaz.parhar@oasisindia.in  
 
Source of Monetary or Material Support  
Self funded by the institute, Oasis Fertility. Address: Oxford Street, Sarojini Devi Road, 2nd Floor CVK Park Square, Krishna Complex, Kalasiguda, Secunderabad-500003, Telangana, India.  
 
Primary Sponsor  
Name  OSHERM, Oasis Fertility 
Address  Plot No. 8-2-120/112/A/7, Road Number 9, Jubilee Hills, Hyderabad, Telangana 500034 
Type of Sponsor  Private hospital/clinic 
 
Details of Secondary Sponsor  
Name  Address 
Nil  Nil 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 3  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Parinaaz Parhar  Oasis Fertility  Oasis Fertility, 2nd Floor, CVK Square, SD Road, Secunderabad
Hyderabad
TELANGANA 
9881474476

parinaaz.parhar@oasisindia.in 
Dr Durga Rao  Oasis Fertility, Banjara Hills  No 8-2-269/3/1/4-2, Road, nearby NATCO Pharma, Park View Enclave, banjara Hills
Hyderabad
TELANGANA 
9491111011

durga@oasisindia.in 
Dr Bhavishya Reddy  Oasis Fertility, Miyapur  R V Plaza, 4 th Floor, Plot No 203, Nearby Mythri Nagar, Arch, Hafeezpet, Madeenaguda
Hyderabad
TELANGANA 
7981134930

drkbhavishyareddy@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Oasis Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  Infertile women of age 21 years to 42 years with diminished ovarian reserve. 
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Comparator Arm (Dual Trigger):   Given once on day of trigger for oocyte maturation when at least 2-3 follicles are more than 17mm in size Combination of GnRH agonist + HCG at 35–36h before oocyte retrieval 
Intervention  Intervention Arm (Double Trigger):   Given once on day of trigger for oocyte maturation when at least 2-3 follicles are more than 17mm in size. GnRH agonist at 38–40h + HCG/rHCG at 35–36h were given before oocyte retrieval  
 
Inclusion Criteria  
Age From  21.00 Year(s)
Age To  42.00 Year(s)
Gender  Female 
Details  Infertile women with low ovarian reserve as per POSEIDON criteria. 
 
ExclusionCriteria 
Details  Severe systemic illness

Contraindication to GnRH agonist or HCG

Participation in another clinical trial 
 
Method of Generating Random Sequence   Stratified block randomization 
Method of Concealment   Alternation 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
Oocyte retrieval rate

Number of mature oocytes retrieved

Fertilization rate

Blastulation rate

Number of top-quality embryos 
1 year 
 
Secondary Outcome  
Outcome  TimePoints 
Oocyte retrieval rate
Fertilization rate
Blastulation rate 
1 year 
 
Target Sample Size   Total Sample Size="150"
Sample Size from India="150" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   N/A 
Date of First Enrollment (India)   31/10/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  31/10/2025 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - YES
  1. What data in particular will be shared?
    Response - All of the individual participant data collected during the trial, after de-identification.

  2. What additional supporting information will be shared?
    Response -  Study Protocol
    Response -  Statistical Analysis Plan

  3. Who will be able to view these files?
    Response - Researchers whose proposed use of the data has been approved by an independent review committee identified for this purpose.

  4. For what types of analyses will this data be available?
    Response - To achieve aims in the approved proposal.

  5. By what mechanism will data be made available?
    Response - Proposals should be directed to [parinaaz.parhar@oasisindia.in].

  6. For how long will this data be available start date provided 02-01-1970 and end date provided 02-01-1970?
    Response - Beginning 3 months and ending 5 years following article publication.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - NIL
Brief Summary   This randomized controlled study aims to compare the embryological outcomes with two trigger protocols for oocyte maturation- the dual trigger consisting of Inj hCG and Inj GnRH agonist given together at 35- 36 hours before oocyte retrieval vs double trigger- Inj GnRH agonist given 38-40 hours prior vs Inj hCG given 34- 35 hours before oocyte retrieval.
The study will evaluate the difference in oocyte retrieval rate, maturity rate, fertilization rate, premature ovulation rate, blastulation rate and top quality embryo rate between the two groups. The patients would be further analysed under the subgroups based on the protocol used (PPOS vs GnRH antagonist) and the age of the patients studied (<35 years and >35 years old).
Since there are no previous randomized controlled trials comparing outcomes using these two trigger strategies in this population of patients, this study aims to identify the optimal trigger strategy to maximize the oocyte maturity rate and embryological outcomes in poor responder patients.
We aim to include 150 patients in this study over a period of 1 year.


 
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