IRCT20170917036227N3 IRCT 2018-07-15 Tehran University of Medical Sciences Effect of sildenafil on treatment of oligohydramnios Comparison of the effectiveness of sildenafil plus hydration therapy with the hydration therapy alone on the treatment of oligohydramnios in pregnant women referring to Arash Hospital 2017-10-23 anticipated 52 Complete https://irct.ir/trial/27148 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The considered sample size is 52, with 26 people in each group. Block randomization method was designed by the group's epidemiologist using Stata version 13 software. The size of blocks considered is 6. The random allocation list for patients is solely available to the epidemiologist. To hide the random allocation process, 52 card sequences of treatments will be written accordingly, and then the cards will be placed inside sealed envelopes. A 10-digit random code will be written on each packet as the patient's identification number. When the physician announces the eligibility of a patient, the methodologist will provide the envelope, Blinding description: the statistical analyser will be unaware of the type of intervention performed in the groups. N/A Oligohydramnios. Intervention 1: Intervention group: oral sildenafil tablets with a dose of 25 mg every 8 hours along with hydration therapy. Intervention 2: Control group: Hydration therapy alone. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is The research team has not yet made a decision on how to publish the results or statistical analysis map.