Was the Roman Catholic Church responsible for the change of Sabbath to Sunday as day of rest? Some historians--both Catholic and Protestants--make reference to Constantine, the emperor, circa 527, as paving the way for the Bishop of Rome as responsible for the change that historically took effect of transferring Sabbath sacredness to Sunday as an act of church authority.

Is there any official church document that confirms such claim?
"Already in apostolic times (Acts 20:7) Christians transferred the
  Sabbath from the seventh to the first day of the week."
  Source: Dictionary: SABBATH, BIBLICAL | Catholic Culture.


cf. Catechism of the Catholic Church: II. THE LORD'S DAY


  This is the day which the LORD has made; let us rejoice and be glad in
  it.1
  
  The day of the Resurrection: the new creation 
  
  2174 Jesus rose from the dead "on the first day of the week."2 Because it
  is the "first day," the day of Christ's Resurrection recalls the first
  creation. Because it is the "eighth day" following the
  sabbath,3 it symbolizes the new creation ushered in by
  Christ's Resurrection. For Christians it has become the first of all
  days, the first of all feasts, the Lord's Day (he kuriake hemera,
  dies dominica) Sunday:
  
  We all gather on the day of the sun, for it is the first day [after the Jewish sabbath, but also the first day] when God, separating
  matter from darkness, made the world; and on this same day Jesus
  Christ our Savior rose from the dead.4
  
  Sunday - fulfillment of the sabbath  
  
  2175 Sunday is expressly distinguished from the sabbath which it follows chronologically every week; for Christians its ceremonial observance replaces that of the
  sabbath. In Christ's Passover, Sunday fulfills the spiritual truth of
  the Jewish sabbath and announces man's eternal rest in God. For
  worship under the Law prepared for the mystery of Christ, and what was
  done there prefigured some aspects of Christ:5
  
  Those who lived according to the old order of things have come to a
  new hope, no longer keeping the sabbath, but the Lord's Day, in which
  our life is blessed by him and by his death.6 
  
  2176 The celebration of Sunday observes the moral commandment inscribed by
  nature in the human heart to render to God an outward, visible,
  public, and regular worship "as a sign of his universal beneficence to
  all."109 Sunday worship fulfills the moral command of the Old
  Covenant, taking up its rhythm and spirit in the weekly celebration of
  the Creator and Redeemer of his people.
  
  1. Ps 118:24.
  2. Cf. Mt 28:1; Mk 16:2; Lk 24:1; Jn 20:1.
  3. Cf. Mk 16:1; Mt 28:1.
  4. St. Justin, I Apol. 67:PG 6,429 and 432.
  5. Cf. 1 Cor 10:11.
  6. St. Ignatius of Antioch, Ad Magn. 9,1:SCh 10,88.     




Please see also:


Sabbath or Sunday? | Catholic Answers.
Did the early Church move the Sabbath from Saturday to Sunday? | Catholic Answers.
APOSTOLIC LETTER DIES DOMINI | Pope St. John Paul II [the Great]. 
This should be of interest: The Pope Nor the Roman Catholic Church changed Sabbath to Sunday by By Robert K. Sanders.